[KERNEL] ROOT | exFAT [13 Sep] [P6810 ICS 4.0.4] SkyHigh Kernel [3.3.0]

[KERNEL] ROOT | exFAT [13 Sep] [P6810 ICS 4.0.4] SkyHigh Kernel [3.3.0] - Galaxy Tab 7.7 Android Development

[KERNEL] ROOT | exFAT [13 Sep] [P6810 ICS 4.0.4] SkyHigh Kernel [3.3.0]
** FOR P6810 WiFi device running ICS 4.0.4 XXLPP ONLY !! **
I am UpInTheAir and Chef of now discontinued SGT 7.7 ICS ROMs, and now bring to you my "daily driver" P6810 ICS SkyHigh Kernel.
-- STABLE WORK-IN-PROGRESS --
* I am NOT a recognised developer, but thought I would help out this forum by SHARING my own compiled kernel
* I don't pretend to know everything, so if you can be constructive and help out this project, please do so. You will find allot of answers by searching gitHub, XDA and Google
FEATURES
* Based on official Samsung GT-P6810_ICS_Opensource_Update1 using initramfs XXLPP
* AUTO ROOT (only if you don't already have it)
insecure kernel
su binary
SuperSU v1.60
busyBox installed to /sbin
* STABLE
* SkyHigh default CPU min/max 200 ->1400 MHz (13-step)
* 16-step CPU 100-1600 MHz (Recommend setting 200-1400/1600 MHz)
* OC CPU to max 1600 MHz (support with CPU control app)
* UC CPU to min 100 MHz (support with CPU control app)
* Stock CPU freq 200-1400 MHz UV -25mV
* CPU freq/voltage control interface (UV support with a CPU control app)
* 4-step UV & UC/OC GPU freq / vdd : 100-160-267-400 MHz (stock = 2-step 160-267 MHz)
* GPU Control interface via init.d script
clock
voltage
step thresholds
stay counts
* GPU UV
100 MHz = 900mV
160 MHz = 900mV (-50 mV > stock 950 mV)
267 MHz = 950 mv (-50 mV > stock 1000 mV)
400 MHz = 1050 mV
GPU BENCHMARK BEFORE (3DMark app)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
GPU BENCHMARK AFTER (3DMark app)
* Governors
pegasusq = SkyHigh default (siyah kernel version & "freq for responsiveness" tweaked to 500 MHz by me)
HYPER
scary
wheatley
abyssplug
lulzactiveq (siyah kernel version & tweaked by me)
lazy
hotplug
ondemand
performance
ZZMoove 0.7d
* IO schedulers
SIO = SkyHigh default
ROW
VR
NOOP
Deadline
CFQ
* Thunderbolt scheduler IO Tweaks [pikachu01]
* Implemented kernel to report USB trickle charge (previously just reports discharging).
- Those devices without moddified SystemUI.apk will now show battery charging animation whilst on USB power source
* Force USB charging souce to be detected as AC
- faster USB charge using same circuitry
- limited by:
1. charging source max output
2. kernel - up to max 1500 mA (same is actual AC)
* init.d support (init.d folder permission set to 777)
* Reduced GUI lag
- Frandom
- Entropy generator : no overhead or need for Seeder app (blocking removed for max 4096 size pool)
* BRICK-BUG SAFE ?!
* Removed kernel references to "MMC_CAP_ERASE" and Patch : Skip secure erase on MoviNAND
* I make no guarantees on this and not going to test !
* FC freeze fix
* Improved touch-screen sensitivity (on battery and charge)
* R/W and auto-mounting of exFAT USB-OTG & external sdcard using official Samsung Open Source modules v1.2.4
* modded ROM /system/etc/vold.fstab to permit exFAT mounting
* NTFS R/W OTG file system support (require app to mount)
* UDF/ISO file system support - BluRay (require app to mount) - not tested !
* Network filesystem support (not tested)
In-built CIFS
In-built NFS
* In-built zRAM support
* LZ4 compression implemented & enabled for zRAM [psndna88 & Yank555.lu]
* Support paging of anonymous memory (Swap)
* General optimized for size
* Kernel compression = xz
* Triangle Away app support (not sure if we even have a hidden counter?)
* Support for iPad, iPhone, iPhone_3G/S, iPhone_4/4S, iPhone_5 (not tested as I don't own "rotten fruit" )
* UV Memory -50 mV (1.2V → 1.15V)
* UV motor -100 mV (3.1V → 3.0V)
* UV LED -100 mV (3.2V → 3.1V)
* fbearlysuspend sysfs interface (use option in Trickster Mod app to alter screen off delay - prevent screen "flicker" during CRT-off enabled ROMs)
* Dynamic read-ahead implemented and set at 1024 KB
* External sdcard read ahead cache = 1664 KB
* Dynamic FSync control v1.2 implemented and enabled (use option in Trickster Mod app "specific" to change)
* Dynamic management of dirty page writebacks
* sysfs interface to Enable / Disable Android Logger
* KSM enabled in config
* Custom bootanimation support
* Custom boot sound support
* Support for XPAD gamepad & rumblepad controller
* Reduce Android logger RAM usage
* Disabled kernel debugging to reduce zImage size
* Disabled some module logging
* Disable mali tracking debug
* Lower vm swappiness from 60 to 20 (performance)
* setprop tweaks
pm.sleep_mode 1
ro.ril.disable.power.collapse 1
wifi.supplicant_scan_interval 180
dalvik.vm.heapgrowthlimit 130m
dalvik.vm.heapsize 130m
persist.sys.purgeable_assets 1
windowsmgr.max_events_per_sec 90
TO DO
* Further governor/scheduler tweaks
* Other various useful modules
* Possible STweaks support or Tegrak etc
* Increase default volume or sound mod
* Lots more
CREDITS
* My family !!
* Samsung
* XDA
* wanam repo, ezykernel ICS diff, Ryuinferno, CM, boeffla, GM, redpill more to add yet
* Chainfire for root
* GM - siyah kernel
* AndreiLux
* idcrisis for permission to implement CrossBreeder entropy into kernel - no success as yet...
* pikachu01 - Thunderbolt scheduler IO Tweaks
* XDA devs that I cherry pick code from
* edan1979 for excellent feedback & also nutley for volunteering to test p6800 kernel
* Development has been slow, but still progressing.......
GPL COMPLIANT - SOURCE: >> GitHub
.
.

Download & change-log
DOWNLOAD & CHANGE-LOG
** DISCLAIMER : FLASH AT YOUR OWN RISK **
WARNING :
* Under-volting can cause instability
* Over-clocking can cause freeze/reboot, heat & damage to CPU
* Any customizations may void warranty
P6810 WiFi ICS 4.0.4 XXLPP ONLY
INSTALLATION
1. NANDROID (just in case)
2. Remove any previous CPU control settings from starting at boot
3. Flash in :
a) CWM.zip in custom recovery (CWM or TWRP)
-or-
b) ODIN.tar in Odin [PDA] / Mobile Odin4. THIS WILL PROBABLY "BREAK" currently installed V6SuperCharger scripts ! (test kernel first, and then re-install scripts)
P6810 WiFi ICS 4.0.4 XXLPP ONLY
SkyHigh Kernel :
CWM.zip v3.3.0 http://d-h.st/5BA
ODIN.tar v3.3.0 http://d-h.st/44P
------------------------------------------------------------
Stock :
CWM.zip XXLPP http://d-h.st/hzD
ODIN.tar XXLPP http://d-h.st/jld (package not tested)
COMPILED MODULES
* Alrealy in-built !!
* Just for reference only
gitHub initramfs_root/lib/modules
EXAMPLE SCRIPTS ATTACHED : GPU IS ALREADY 4-step OVERCLOCK TO 400 MHz ! :
* These are script EXAMPLES if you wish to change values from SkyHigh default as in Post #1
* Modify valid values (some values may change, but not actually work and default back)
* init.d permmision 777
** > > Somehow the file extension ".bin" has been added during the upload process. If you have 90GPUfreq.bin or 91GPUvolt.bin, DELETE the ".bin" before running the script
90GPUfreq http://d-h.st/0Iu
Code:
#!/system/bin/sh
#
# SkyHigh Kernel GPU frequency sysfs interface
# Script written by [email protected] for SGT 7.7
# Info sourced from siyah kernel
sleep 5
echo "50 160 267 400" > /sys/class/misc/gpu_clock_control/gpu_control
91GPUvolt http://d-h.st/797
Code:
#!/system/bin/sh
#
# SkyHigh Kernel GPU UV/OV sysfs interface
# Set GPU voltages (Changes possible at +/-50mV ie at 50000 steps)
# Script written by [email protected] for SGT 7.7
# Info sourced from siyah kernel
sleep 6
echo "850000 900000 950000 1050000" > /sys/class/misc/gpu_voltage_control/gpu_control
++ PLEASE DO NOT REDISTRIBUTE - LINK HERE INSTEAD ++
BUGS
* Check if it is actually a stock firmware bug first using stock kernel -BEFORE- posting in this thread or elsewhere
1. The CPU freq may exceed the max setting on wakeup. ie max CPU freq set @ 1400 MHz -> turn on screen -> 1600 Mhz very very briefly -> then back down
* Can't fix the above CPU Level 0 bug. Refer to my post HERE. It is a FIRMWARE bug present in both stock and SkyHigh kernels
.

FAQ & HELP
FAQ & HELP
MY RECOMMENDATIONS
* Governor = pegasusq - lulzactiveq - ZZMoove
* IMO = Performance → → Battery
1. on-demand
2. pegasusq
3. lulzactiveq
4. ZZMoove
* Scheduler = SIO
* CPU freq = 200-1400/1600 MHz
* CPU vdd levels = SkyHigh "defaults"
* Enable zRAM
* CPU Control app = Trickster Mod app
Don't forget to use only one Control app at a time. They will conflict !
ISSUES?
1 Remove any kernel related init.d tweaks
2 Wipe your CPU control app(s) data (menu > settings > applications > "your control app(s)" > clear data/cache)
3 Use only ONE CPU control app !
4 Open SuperSU app > settings > full unroot
5 Boot into recovery and wipe cache & dalvik cache
6 Flash SkyHigh Kernel
7 Reboot
BASIC TRICKSTER MOD APP TUTORIAL
** Open app and ensure SU permission is granted **
1. Make your changes
2. Apply (tap the "✔")
3. Enable (I use notification as well)
4. Reboot, you can see the notification after start-up
zRAM
Info here : (INFO)What is zram and how does it work???
PREVENT/REDUCE SCREEN-OFF FLICKER FOR CRT-OFF ANIMATION ENABLED ROMs
* set fbearlysuspend msleep between 100 and 500 ms
* Set to 0 if you haven't any CRT-off animation mod
DYNAMIC READ-AHEAD
DYNAMIC FSYNC CONTROL
DYNAMIC MANAGEMENT OF DIRTY PAGE WRITEBACKS
* [Christopher83]
This feature allows to have two different intervals for dirty page
writebacks and to dynamically manage them when the system has been
resumed (it's active) or when has been suspended.
Three new procfs parameters are exposed inside /proc/sys/vm path:
- dynamic_dirty_writeback is the activation status of this feature,
set 1 to enable it, set 0 to disable it and use the standard behaviour
- dirty_writeback_active_centisecs is the interval for the dirty page
writebacks when the system is active (screen on)
- dirty_writeback_suspend_centisecs is the interval for the dirty page
writebacks when the system is suspended (screen off)
This feature is in part inspired on Francisco Franco's patch:
https://github.com/franciscofranco/mako/commit/34d79548cf16b69c7d0154836018e7f258a22947
Click to expand...
Click to collapse
ANDROID LOGGER SYSFS INTERFACE
* Switching done via /sys/kernel/logger_mode interface
* Default is 0 (off)
WHAT IS A CUSTOM KERNEL
* Is 'usually' modified and complied from source.
* My very first successfully compiled kernel just included the "SkyHigh" name. I suppose you could call that a modified "stock" kernel. On the other hand, you could also argue that any firmware modified from either official or built from sources could be called "custom".
HAVE THE STOCK KERNELS ATTACHED BEEN MODIFIED
* If you are referring to the stock MD3 kernels in Post #2, NO
* I just extracted the zImage from official firmware and repackaged for flashing via custom recovery or Odin. There are no changes made to the zImage. I have no plans to modify these.
ENTROPY
* MAX pool sixe 4096
* It's not instant, just use your device and it will grow.
* No need for entropy generator apps that consume battery (use extra CPU cycles)
WHAT ARE GOVERNORS / SCHEDULERS ETC
* Excellent source of info by droidphile :
[REF][TWEAKS] Kernel Governors, Modules, I/O Schedulers, CPU Tweaks, AIO App Configs
CUSTOM BOOT ANIMATION SUPPORT
1. copy bootanimation.zip to /system/media/ folder (mount folder r/w to paste)
2. ensure set permissions rw-rw-rw-
3. reboot
NOTE :
* For any further help or instructions for bootanimation, please open your own forum Q&A thread or post in a relevant bootanimation thread. There are many already built and can be found by searching.
* The size we need for our tab is 800x1280 or 1280x800 (depending on portrait or landscape)
CUSTOM BOOT SOUND SUPPORT
* Place custom boot sound PowerOn.ogg in /system/media
* To mute, create an empty file named mute in /system/media
* To unmute, create an empty file named unmute in /system/media
* To restore original boot sound, create an empty file named ori_sound in /system/media
* Reboot device after each process
NOTE :
* when creating a custom boot sound, make sure you use a capital "P" and "O" in PowerOn.ogg
* I will not provide a tutorial for creating boot sounds, you can Google yourself
BENCH-MARKING
Freeze or Re-Boot
1 Try increase CPU 1600 Mhz voltage by +25 mV or +50 mV. I would not recommend any more than that !
2 Lower CPU OC back to stock max 1400 MHz setting
3 To find out which frequency cause the freeze :
a) If you have UV the CPU and the device freeze, obviously you need to increase the voltage to a particular frequency step(s)
b) Do a stress test with SetCPU (or other app) and lock your max frequency for each step (DO NOT SET ON BOOT WHILST TESTING)
4 Try a different governor
5 Use a different benchmark app/tool
AnTuTu Crashes?
* Try another benchmark app !
Low Bench-Marking Scores
* Consectutive tests as well as OC may heat the CPU high enough where thermal limiting occurs. Well here you go........... I observed my CPU regularly drop to 800 MHz after hitting a thermal limit during testing.
Here's the proof !
https://github.com/UpInTheAir/P6800_JB_SkyHigh_Kernel/blob/master/arch/arm/mach-exynos/mach-px.c
Code:
#ifdef CONFIG_EXYNOS4_SETUP_THERMAL
/* below temperature base on the celcius degree */
struct s5p_platform_tmu px_tmu_data __initdata = {
.ts = {
[COLOR="Red"].stop_1st_throttle = 61,
.start_1st_throttle = 64,[/COLOR]
.stop_2nd_throttle = 87,
.start_2nd_throttle = 103,
.start_tripping = 110,
.start_emergency = 120,
.stop_mem_throttle = 80,
.start_mem_throttle = 85,
},
.cpufreq = {
.limit_1st_throttle = [COLOR="Red"]800000[/COLOR], /* 800MHz in KHz order */
.limit_2nd_throttle = 200000, /* 200MHz in KHz order */
* With some undervolt and governor tuning, little OC impact will be felt on battery. Not everyone fixes their CPU to max with performance governor so, providing your hardware can handle it, some OC should be OK for everyday use as the CPU only briefly scales to max freq with the 'right' governor.
* As you can see, this could be easily changed to allow (cheat) in benchmarks. This won't make much difference to everyday use, but IMO shouldn't be touched. My silicon may not handle it
GPU init.d SCRIPTS
How to install/run :
1. Mount system/etc/init.d folder [R/W]
2. Copy your script to your system/etc/init.d folder
3. Set script permission to 777
4. Reboot
-OR-
Use root explorer app (Linux script handler) -or- script manager app to run script - no need to reboot
[Q] How do I check the script worked?
[A] Check values changed in files:
sys/class/misc/......
gpu_clock_control (gpu_control & gpu_staycount)
gpu_voltage_control (gpu_control)
[Q] How do I check it's a valid frequency?
[A] I observed the live GPU freq values in sys/module/mali/parameters/mali_gpu_clk. I use the Cool Tool app in the "label" section
ANYTHING ELSE
When I find the time
.

Thought all you P6810 users would be getting starved of flashing, so here you go ! Upload in a minute or two :laugh:
EDIT:
This kernel has been compiled using the XXLPP initramfs.
It may work properly on other P6810 ICS firmware, it may not.
++ If you wish to have it compiled correctly for your firmware, please post your stock ICS firmware zImage. Time permitting, I'll try compile a kernel for you.
.

Thanks, giving it a shot now on your old SkyHigh ROM. Nice to have something new that isn't fraught with AOSP issues (though of course all respect to daniel_hk for his amazing work!).
Maybe some day Samsung will remember that they released a wifi tab 7.7 and give us JB like the P6800 folks. /sigh

teiglin said:
Thanks, giving it a shot now on your old SkyHigh ROM. Nice to have something new that isn't fraught with AOSP issues (though of course all respect to daniel_hk for his amazing work!).
Maybe some day Samsung will remember that they released a wifi tab 7.7 and give us JB like the P6800 folks. /sigh
Click to expand...
Click to collapse
Just remember to follow installation the instructions and post #3, clear any kernel related tweaks from init.d folder first etc. If you have mods such as V6SuperCharger etc, flashing the kernel will most probably "break it".
Best flashed on a "clean" system without any tweaks, and build on it from there.
Sent from my GT-I9500 using xda premium

If I get the time later today, might try and make an "EXTREME" version. Don't know how it'll go....
- GPU 5 steps
- GPU max 533 / min 108 ?? Galaxy Note can do it with same hardware. Individual hardware is not quite made to exactly same spec though.
- UV GPU stock freqs
Sent from my GT-I9500 using xda premium

UpInTheAir said:
Just remember to follow installation the instructions and post #3, clear any kernel related tweaks from init.d folder first etc. If you have mods such as V6SuperCharger etc, flashing the kernel will most probably "break it".
Best flashed on a "clean" system without any tweaks, and build on it from there.
Sent from my GT-I9500 using xda premium
Click to expand...
Click to collapse
That's always good advice, but I'm too lazy to do a full wipe unless something goes wrong. As always of course, I won't claim bugs without it but most of the time these things go fine.
Anyway, I haven't done many tests yet, but for the moment at least it seems a bit more responsive. So far so good!

teiglin said:
That's always good advice, but I'm too lazy to do a full wipe unless something goes wrong. As always of course, I won't claim bugs without it but most of the time these things go fine.
Anyway, I haven't done many tests yet, but for the moment at least it seems a bit more responsive. So far so good!
Click to expand...
Click to collapse
No problem.
If you have any init.d script for scheduler etc, suggest to remove that and use the kernel default (SIO) or ROW. Otherwise it will override on boot the kernel default or possible CPU control app settings.
If installed, V6SuperCharger will be broken as well as CrossBreeder. You will need to go to their respective threads and reinstall.
Sent from my GT-I9500 using xda premium

works great, no problems here. Thanks for throwing us poor P6810 owners a bone UpInTheAir!!

This is great. Any chance of adding zram?
EDIT: Any apps for setting kernel setting?

lambstone said:
This is great. Any chance of adding zram?
Click to expand...
Click to collapse
Maybe at some point will try and look into it.
Currently playing around with adding another GPU step (5) max 520 MHz. Not sure if I'll make it permanent yet.
Already tested working and implemented 16 step CPU with freq/vdd control interface 100-1600 MHz(up from 7). Will be in next release, along with the brick bug "fix". Obviously, I'm not going to test the "fix" actually works
Sent from my GT-I9500 using xda premium

lambstone said:
EDIT: Any apps for setting kernel setting?
Click to expand...
Click to collapse
SetCPU, voltage control, nsTools (free) etc can all set governors, IO schedulers, UV CPU control, UC/OC etc
With SetCPU, you can also tweak certain governors etc, maybe the voltage control (paid) can as well, not sure
Sent from my GT-I9500 using xda premium

There will be an update this weekend,.... sometime.
Build is ready, but want to get my P6810 gitHub in order first (some local repository corruption). And also a lot of family time.
Sent from my GT-I9500 using xda premium

v1.2 UPDATE
>> v1.2 UPDATE << for the the two followers here :laugh:
FOR P6810 WIFI ICS 4.0.4 ONLY
Installation as per Posts #1-3
Change-log
* increased 4-step to 5-step GPU 114-160-267-533 MHz
* Increased 7 to 16-step CPU 100 - - - - - - -> 1600 MHz & voltage interface
* Increased pegasusq (siyah) "freq for responsiveness" from 500 to 800 MHz. Maybe slightly more battery, but with UV will be negligible.
* Removed reference to "Brick Bug". Look in gitHub commit
* Slightly UV GPU freq voltage levels. Not sure if it's actually done right, but no negative affects though.
* Couple other small GPU less aggressive threshold adjustments etc.
* Kernel compression changed from Gzip to LZMA fto reduce zImage size. Boot may take a second longer.
* Updating OP now. Will update OP freq.vdd table later on.
++ Although I have increased the GPU max freq from 400 to 533, I don't really expect any real noticeable (real life) performance increase from 400 MHz. My GPU benchmark testing indictaes a relative low increase, if nothing at all.
CHEERS
UITA
.

v1.5.0
>> v1.5.0 UPDATE <<
FOR P6810 WIFI ICS 4.0.4 ONLY
Installation as per Posts #1-3
Change-log
* Revert to a WORKING 4-step GPU 100-160-267-400 MHz (114 & 533 MHz are invalid freq)
* Lower min GPU freq to 100 MHz from invalid 114 MHz (stock 160 MHz)
* GPU Control interface via init.d script
clock
voltage
step thresholds
stay counts
* Added support for Triangle Away app (not sure if we even have a counter?)
* Slightly UV CPU freq 100-1400 MHz by -25mV. 1500 & 1600 remain unaffected
* Increased GPU 267-400 MHz threshold
* Better 4-step GPU "idle" and light use battery savings with UV & tweaked thresholds
* UV GPU properly, now working
100 MHz = 900mV
160 MHz = 900mV (-50 mV > stock 950 mV)
267 MHz = 950 mv (-50 mV > stock 1000 mV)
400 MHz = 1050 mV
* Updating OP now. Will update OP freq.vdd table later on.
* I will attach some example init.d scripts in the download section Post #2. Further info in Post #3.
CHEERS
UITA
.

v2.0.0 UPDATE
>> v2.0.0 UPDATE <<
FOR P6810 WIFI ICS 4.0.4 ONLY
1. Read warnings in Post #3 before flashing. I am not responsible, you are
2. If you dare to flash, you will need a CPU control app to adjust the CPU freq from the safe startup values
3. Recommend 100-1600 MHz
INSTALLATION as per Posts #1-3
DOWNLOAD in Post #2
CHANGE-LOG
* Increase from 16-step to 18 step CPU
* CPU min/max safe startup freq default = 200 -> 1400 MHz
* CPU min/max safe voltage = 800 -> 1450 mV
* CPU OC to 1700 or 1800 MHz with CPU control app
* UC to 100 MHz with CPU control app
* CPU 100 MHz voltage increased +25 mV to 950 mV for stability
* In-built CIFS network filesystem support (not tested)
* In-built NFS network filesystem support (not tested)
* In-built zRAM support (not tested)
* pegasusq (siyah) governor "freq for responsiveness" decreased to 500 MHz for a little battery saving
Info here : (INFO)What is zram and how does it work???
You need :
(i) a relevant partition (Linux swap partition and set as PRIMARY)
(ii) & init.d script or this app [APP][14/5/13]Zram & Swap Control [CACHE & PARTN] V2.5.5 Sammy 4.2.2 compatible!
(iii) Can I help you set it up. No, I don't use it 
* BTW - I couldn't get great benchmark results at 1800 MHz due to thermal throttling of the CPU to 800 MHz.
In other words, I used Cool Tool app to show CPU freq on screen whilst benchmark. I could see the 1800 MHz max, then limited to 800 MHz due to EXCESSIVE CPU HEAT !
There is a way to increase the thermal limits, but I don't want my silicon melted ! I am sure 1600 MHz is more than enough.
* BUG : The CPU freq may exceed the max setting on wakeup. ie max CPU freq set @ 1400 MHz -> turn on screen -> 1800 Mhz very very briefly -> then back down
CHEERS
UITA
.

Thanks UITA, I've been distracted by other tabs lately, but my 7.7 now driven by SkyHigh_v2.0+ - thanks for your efforts, no problems to report.

davp said:
Thanks UITA, I've been distracted by other tabs lately, but my 7.7 now driven by SkyHigh_v2.0+ - thanks for your efforts, no problems to report.
Click to expand...
Click to collapse
No worries
Just be aware that the default is now set back to 200-1400 (15-step CPU), but you can use an app to UC/OC up to 18-step I do however recommend the 100-1600, works nicely on my tab.
Just that little bug I can't take care of for the next month away
Sent from my GT-I9500 using xda premium

If anyone with prior experience setting up their device and using CIFS, ZRAM, or NFS, please report back if you have it working with v2.0.0.
I have absolutely none, and am away and unable to even try.
Thanks
Sent from my GT-I9500 using xda premium

Related

[PRO][KERNEL] LuPuS-JBv12 [JB 4.1 & 4.2][LINARO 4.7.3][UPDATED 08-06-13]

LuPuS-JB-Kernel
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Built with Linaro
LuPuS-PRO-STOCK KERNEL HERE
LuPuS-CM9-KERNEL HERE
This kernel can be used on any JB CM BASED JB 4.1 or 4.2
Disclaimer
Code:
[COLOR="DarkOrchid"]#include[/COLOR] [COLOR="Magenta"]<std_disclaimer.h>[/COLOR]
[COLOR="Blue"]/*
* Your warranty is now void.. LOL I guess you knew it already.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, you getting dumped or you getting fired because your phone
* bootloops and alarm does not go off. Please do some research if you have any
* concerns about features included in my kernel before using it! YOU and only
* YOU are choosing to make these modifications.
*/
[COLOR="Magenta"]#ifdef[/COLOR]
You have a [COLOR="DarkGreen"]question[/COLOR] post it in the [COLOR="DarkRed"]thread[/COLOR],
Instead of [COLOR="DarkGreen"]Pm'ing me[/COLOR], as other users may
experience you [COLOR="DarkRed"]problems[/COLOR]
[COLOR="Magenta"]#endif[/COLOR][/COLOR]
What Works --
Wifi - (flash modules)
Data
Everything Else that works on FXP
What doesn't work --
Anything that doesn't work on FXP
Whats included in kernel
Added Governors --
brazillianwax
smartass
Smartassv2
Savagedzen
Smoothass
Scary
InteractiveX
Minmax
Userspace
Intellidemand - Thanks to faux123
This is an intelligent ondemand that enters browsing mode to limit max frequency when GPU is idling,
and (exits browsing mode) behaves like ondemand when GPU is busy; to deliver performance for gaming and such.
Intellidemand does not jump to highest frequency when screen is off.
Lazy - Thanks to Ezekeel
The Idea here is to eliminate any instabilities caused by fast frequency switching by ondemand.
Lazy governor polls more often than ondemand, but changes frequency only after completing min_time_state
on a step overriding sampling interval.
Lazy also has a screenoff_maxfreq parameter which when enabled will cause the governor to always
select the maximum frequency while the screen is off.
Lulzactive - Thanks to Tegrak
Based on Interactive and Smartass. When workload is greater than or equal to 60%, the governor scales up
CPU to next higher step. When workload is less than 60%, governor scales down CPU to next lower step.
When screen is off, frequency is locked to global scaling minimum frequency
- Superbad
- a "superbad" super smooth rendition of a highly optimized "smartass" governor!
- Darkside
- a "slightly more agressive smart" optimized governor!
-Ondemandx:
Basically an ondemand with suspend/wake profiles. This governor is supposed to be a battery friendly ondemand. When screen is off, max frequency is capped at 500 mhz. Even though ondemand is the default governor in many kernel and is considered safe/stable, the support for ondemand/ondemandX depends on CPU capability to do fast frequency switching which are very low latency frequency transitions. I have read somewhere that the performance of ondemand/ondemandx were significantly varying for different i/o schedulers. This is not true for most of the other governors. I personally feel ondemand/ondemandx goes best with SIO I/O scheduler.
-Lionheart:
Is a conservative-based governor. The tunables (such as the thresholds and sampling rate) were changed so the governor behaves more like the performance one, at the cost of battery as the scaling is very aggressive.
To 'experience' Lionheart using conservative, try these tweaks:
sampling_rate:10000 or 20000 or 50000, whichever you feel is safer. (transition latency of the CPU is something below 10ms/10,000uS hence using 10,000 might not be safe).
up_threshold:60
down_threshold:30
freq_step:5
Lionheart goes well with deadline i/o scheduler. When it comes to smoothness (not considering battery drain), a tuned conservative delivers more as compared to a tuned ondemand.
BadAss Governor:
Badass removes all of this "fast peaking" to the max frequency. Badass will also take the gpu load into consideration. If the gpu is moderately busy it will bypass the above check and clock the cpu with 1024Mhz. If the gpu is crushed under load, badass will lift the restrictions to the cpu.
-Virtuous
Virtuous is a modded smartassV2 which gives even more battery time then smartassV2
Added Io-scheduler --
VR io-scheduler - Unlike other schedulers, synchronous and asynchronous requests are not treated separately,
instead a deadline is imposed for fairness. The next request to be served is based on it's distance from last request.
- SIO - Simple IO-Scheduler-
SIO is the default scheduler in this kernel. It is widely-regarded as the best all-round performing IO scheduler for android. It is low on CPU usage and optimized for flash-based storage. From the creator - "Based on Noop, Deadline and V(R) IO schedulers. This algorithm does not do any kind of sorting, as it is aimed for aleatory access devices, but it does some basic merging. We try to keep minimum overhead to achieve low latencies. Asynchronous and synchronous requests are not treated separately, but we rely on deadlines to ensure fairness."
- BFQ - Budget Fair Queueing IO-Scheduler-
From Creators
* Copyright (C) 2008 Fabio Checconi <[email protected]>
* Paolo Valente <[email protected]>
*
* Licensed under the GPL-2 as detailed in the accompanying COPYING.BFQ file.
*
* BFQ is a proportional share disk scheduling algorithm based on the
* slice-by-slice service scheme of CFQ. But BFQ assigns budgets,
* measured in number of sectors, to tasks instead of time slices.
* The disk is not granted to the active task for a given time slice,
* but until it has exahusted its assigned budget. This change from
* the time to the service domain allows BFQ to distribute the disk
* bandwidth among tasks as desired, without any distortion due to
* ZBR, workload fluctuations or other factors. BFQ uses an ad hoc
* internal scheduler, called B-WF2Q+, to schedule tasks according to
* their budgets. Thanks to this accurate scheduler, BFQ can afford
* to assign high budgets to disk-bound non-seeky tasks (to boost the
* throughput), and yet guarantee low latencies to interactive and
* soft real-time applications.
Click to expand...
Click to collapse
- Incresed WiFi-Signal Strength
- Changes to save battery(if it works)
- Make overall kernel smoother
- O/C 2ghz
- Updated and Changed Zram (thanks to faux123)
- Updated and changed LZO compression and decompression = Double increase in performance
- Added Init.d Support
- Added tweaks on boot
-Overclocked to 2ghz--- Stable up to 1.9ghz, 2ghz may just reboot device, although I do not recommend O/C for long at high settings,
if you damage your phone I am not responsible
- Supports CIFS
- Built with LINARO
LuPuS MENU
You can run lupus menu from terminal or scriptmanager or similar, you must run as root or script will exit with a message
in terminal
Code:
su
lupus
* information is in lupus menu
1/ CIFS Menu *
Enable
Disable
2/ zRam Menu *
Enable
Disable
Set zRam size ( default is 60)
3/ Frandom Menu *
Enable
Disable
4/ USB OTG *
Enable
Disable
5/ Clean and Remove tweaks
Remove init.d's
6/ Tweak Menu
Note all tweaks are preset from here and option to set as init.d's
Clean all temp files
SQLITE optimizations
LMK Optimizations
Network optimizations
Defend against ARP spoofing
Remove android logger
SDcard speed tweak
Flag blocks as non-rotational
7/ Choose Recovery
TWRP
CWM
8/ Performance Menu
Note all options are se by user input from here and option to set as init.d's
Set CPU frequencies
Set Governor
Set IO-Scheduler
Voltage Control
VM tweaks (explained below)
VM Tweaks
dirty ratio and dirty background ratio 1 & 2
This controls how often the kernel writes data to "disk" (in our case the internal microSD system card, not the removable microSD card). When your apps write data to disk, Linux actually doesn't write the data out to the disk right away, it actually writes the stuff to system memory and the kernel handles when and how the data is actually going to be flushed to the disk. These values represent a percentage, the higher the percentage, the longer it waits to flush, the lower the percentage, the more often flushes will occur. Now remember, we are dealing with solid state storage, not the traditional disk platter and spindle. So we are actually able to delay flushes a little longer with solid state versus a traditional hard drive disk.
dirty_expire_centisecs
How old "dirty" data should be before the kernel considers it old enough to be written to disk. It is expressed in 100ths of a second.
dirty_writeback_centisecs
This is the interval of when the writeback daemons periodically wake up and write "old" data out to disk. It is expressed in 100ths of a second.
min free kbytes
This is used to force the Linux VM to keep a minimum number of kilobytes free. The VM uses this number to compute a pages_min value for each lowmem zone in the system. Each lowmem zone gets a number of reserved free pages based proportionally on its size. Default is 2048kb.
overcommit_memory
This controls overcommit of system memory, possibly allowing processes to allocate (but not use) more memory than is actually available.
0 - Heuristic overcommit handling. Obvious overcommits of address space are refused. Used for a typical system. It ensures a seriously wild allocation fails while allowing overcommit to reduce swap usage. root is allowed to allocate slighly more memory in this mode. This is the default.
1 - Always overcommit. Appropriate for some scientific applications.
2 - Don't overcommit. The total address space commit for the system is not permitted to exceed swap plus a configurable percentage (default is 50) of physical RAM. Depending on the percentage you use, in most situations this means a process will not be killed while attempting to use already-allocated memory but will receive errors on memory allocation as appropriate.
Swappiness
A property for the Linux kernel that changes the balance between swapping out runtime memory, as opposed to dropping pages from the system page cache. Swappiness can be set to values between 0 and 100 inclusive. A low value means the kernel will try to avoid swapping as much as possible where a higher value instead will make the kernel aggressively try to use swap space.
VFS Cache Pressure
File system cache (dentry/inode) is really more important than the block cache above in dirty ratio and dirty background ratio, so we really want the kernel to use up much more of the RAM for file system cache, this will increas the performance of the system without sacrificing performance at the application level. The default value is 100, as a percentage, and what you want to do is lower the value to tell the kernel to favor the file system cache and not drop them aggressively.
I would like to say a big thanks to -
FXP - Sources/help with wifi (thanks Jerpelea)
Cyanogenmod - Sources
Dympy - For helping me test alot
Dexmorr - testing
tempest918 - For the New Logo
DooMLoRD - for patches and all the work he has done for Xpeeria's
xeozus
NobodyAtAll
Faux123
Erasmus
Leedroid
Jerpelea
Phil3795
CTCaer
Anyone missing please PM me
LuPuS-jB sources -b jellybean
https://github.com/garwedgess/semc-kernel-msm7x30
CWM source -- https://github.com/garwedgess/android_bootable_recovery -b lupus-cwm

Changelog:
Code:
[hide][B][U]v2 Changes[/U][/B]
[list]
- New Governor Intellidemand2 Thanks @ CosmicDan
- Added vibrate to boot so you know when to enter CWM
- Couple of extra tweaks improvements to battery
- Fixed Wifi
- Reverted Cleancache
- Reverted my disabling of disabling sched_feautures if you get that
- Added USB OTG modules ( find attached zip at the end of the post----> NOTE Not a flashable zip)
- Added stable OC tablefor higher OCing
[/list]
[B][U]V3 Changes[/U][/B]
[LIST]- Updated LZO
- Added Cleancache
- Small code fixes
- Removed OC so phone doesnt boot at 2ghz for a split second
- Updated to latest FXP changes
- Optimizations for Linaro
- USB OTG flashable zip
[/LIST]
[B][U]v4 changes
[/U][/B]
[LIST]
- Recovery Fixed no more "DANCING" - Thanks [user=3365554]@Skrit[/user]chz
- Added Tiny RCU
- Patched LZO
- Updated to Linaro 4.7 toolchain
- Changed to Google snappy compression/decompression
- Much more optimizations
- THUMBEE optimized
- Uncompressed Image instead of zImage
[B][U]v5[/U][/B]
- built with latest linaro 4.7.3 (02-01-2013) - Thanks @ ChainFirex
- Added memcopy
- Added compaction
- Lowered vfs_cache_pressure
- LMK (lowmemorykiller) optimizations
- Improved CIFS support
- Enabled USB tether
- Disabled gentle_fair_sleepers
- Updated video drivers
- Clean up on wifi config
- Back-ported binder changes
- TWRP recovery - thanks @ championswimmer & TWRP team
[/LIST]
[B][U]v6[/U][/B]
- Built with Linaro 4.7.3 (02-01-2013)
- Free'd RAM (disabled 720p) now 381mb - Thanks at Paul678
- Makefile optimisations (snapdragon & neon) - Thanks at Paul678
- Tweaked permormance on interactive governor - Thanks at Paul678
- Tweaked SIO io sched - Thanks at Paul678
- Free'd some RAM from loggers
- Reduce swappiness
- Fix PageHead
- Fix binder. use of uninitialized variable.
- Fix kernel/net Memory Leaks
- Eliminate kstrdup memory leak
- ipv4: force_igmp_version ignored when a IGMPv3 query received
- Fix Entropy Depleting (no more depleting) - Thanks @ Kees Cook
- enable ipsec tunnel support in kernel (Latest FXP Change)
- ARM7 optimsations + more in config
- TWRP v2.4 - Thanks @ Championswimmer, TWRP Team and Wechy 77 for parts of his LuPuS theme
- NEW zRam Eabler to work on TWRP
[B]v7[/B]
- Supports both 4.1 & 4.2 JB
- New IIO Scheduler ZEN thanks [user=2632235]@bbedward[/user]
- New Governor smartassH3 thanks [user=3057569]@Hero[/user]
- Tweaked Deadline IO scheduler
- Tweaked smartassv2
- Tweaked performance Governor
- Frandom
- SFB Net scheduler
- OC up to 1804.8MHz
- Logger backported from CAF
- Free RAM from logger
- LMK updated and optimized + various LMK tweaks
- Various ARM & RAM changes
- TinyRCU optimizations
- Optimized crc32 lib
- various VM changes
- Improved cleancache
- Undervolt LCD display, touch sensor proximity sensor & Wi-Fi thanks @ M66B
- Entropy tweaks
- Try fix for CRT animation [user=4266283]@paul678[/user]
- TWRP & CWM
- LuPuS Menu
- Auto Loading wifi
- All modules and init.d's included No need to flash anything after kernel
Plus alot more changes see [URL="https://github.com/garwedgess/semc-kernel-msm7x30/commits/jellybean"] for full list of credits and patches used[/URL]
[B]v8[/B]
- Latest changes to ALS and Button Backlight -- Thanks @ FXP
- Lowered OC to 1612.8Mhz
- Remove ALS and Button Backlight option from LuPuS Menu (no longer needed)
- Random reboots should be fixed ( for those who where having such issues )
- Fixed TWRP
[B]v9 -- Unreleased[/B]
v10
- Fixed 3D from hanging under high intensity
- Fix pmem for HDPI Mike NG (no more reboots??)
- CWM Recovery = VOLUME DOWN
- TWRP Recovery = VOLUME UP
- Clean up on LuPuS Menu
- Better wifi check
- KEY RESET ( Menu and POWER)
- Tuned Smartassv3 and SmartassH3 [user=2799345]@M66B[/user]
-----
To Enter LuPuS Menu now is
su
lupus
Thanks @ gu5t3r
[B]v11[/B]
- Fixed reboot to recovery
---- Custom CWM
- Clean-up of menu
- Added own wipe options menu -- with extra options
- Aroma File Manager from CWM --- Must have aroma ([COLOR=Red]aromafm.zip) placed on root of sdcard[/COLOR])
- Multi zip installer
- Reboot options - Power off re-added under this menu
- Pointless but people keep asking me for it so re-added wipe battery stats also.
- LuPuS themed...
- Fixed "dancing android"[/hide]
[B]v12[/B]
- Added option to enable Quick Key Reset (enable / disable via LuPuS Menu)
- Tuned Governors
* superbad
* lionheart
* virtuous
* darkside
* conservative
* smartassH3
- Really use google snappy zRam (improves zRam)
- Added zCache
- Removed persistent RAM
- Removed some more kernel debugging
- uninterruptible sleep
- Update SIO & CFQ
- Added Ultra-KSM
- Removed optimized AES & SHA1 routines
- Updated TWRP to 2.4.4
*Fixed Mount USB Storage in TWRP
- Updated CWM to latest Official CWM source
*Removed reboot options
*Re-added power off and reboot system now to main menu
- Improved wifi-loading scripts
- Clean up of lupus menu
- Fixed root issue on some devices
- Reworked kernel logs (can be found in /data/local/tmp)
- Boot.d - If phone is taking a long time to start move suspicious init.d scripts to /system/etc/boot.d
They will be run in background and won't affect boot time.
Downloads
If you like my work please consider buying me a beer or something else
by clicking the DONATE ME button, of course it isn't needed but greatly appreciated and keeps me motivated.
480p
LuPuS_iyokan_jBv12-ram.img
md5 = b0326e4b89795a2500b8ab3d20b621a3
720p
LuPuS_iyokan_jBv12.1-full.img
md5 = 4fbd58c5d16e61be0d98ae7abf794838
No Wifi Modules needed
Mirrors -- all LuPuS Kernels can be found here
www.goo.im/devs/wedgess
- zRam is not enabled by default unless on CM10 ROM, for AOKP to enable it flash the wedgess-zram-enabler.zip in CWM
- If for whatever reason you want to disable Zram after you have flashed the .zip, just go to ect/init.d and delete 00zram
People will ask so i'll just post it here---------to check if zRam is enabled go to terminal emulator or similar and type
Code:
free
or alternatively
Code:
cat /proc/swaps

Also added CIFS support....
What is CIFS???
Server Message Block (SMB) or Common Internet File System (CIFS) are normally used to provide shared access to files on a network, mostly involving computers running MS Windows.
It allows you to conveniently mount/unmount your network accessible file resources and access the files transparently via your favourite Android app (playing music / videos, accessing documents etc.) Settings are stored on your SD card with permissions to write also to your SD card.
Instructions
- extract cifsfile.zip
- save cifs,ko file to your sdcard
- in terminal emulator
- cd sdcard
- su
- insmod cifs.ko
Not download CifsManager or similar app and configure it

will you make one for xperia arc/s ?

Ojojojo!!!very very great news!!!!:laugh:
thank you very much!

i want it on arc s too, it looks great!!

don`t work in xperia arc. why?

mohoram said:
don`t work in xperia arc. why?
Click to expand...
Click to collapse
because ur on the xperia PRO thread read
Sent from my GT-I9300

Pls add screnshoot sir.

Works great on PARANOIDANDROID, thanks :good:
Gesendet von meinem PARANOIDEN Xperia Pro mit Jelly Bean.

Using it on cm10 fxp137, working great so far ( just like all your other works ).
Big respect :good:

Hey Wedges!!
We long no talked and i couldnt test your kernels. I was too busy
But im so proud to see you still give some attention to our Pro!
And your work is better than any other!
Keep updating it and take your time buddy!!!:victory:

Thanks bro for release cm10 kernel..
Download & try now..
Great work
Sent from my Xperia Pro using Tapatalk 2

Excellent wedgess!!!
Since I've used your LuPuS Stock v5, I've had no issues. I'm now thinking of testing to use LuPuS for JB or for CM9. My experience in using your kernel, it wasn't your kernel that was the issue, in many cases it was the ROM. So I ask politely, can you make a ROM to go with any of your Kernels?
Hey guys! Help me convince wedgess to build us a matching ROM for his awesome Kernel! Whatever you decide, still thanks wedgess!!! :good::good::good:

[email protected] said:
Excellent wedgess!!!
Since I've used your LuPuS Stock v5, I've had no issues. I'm now thinking of testing to use LuPuS for JB or for CM9. My experience in using your kernel, it wasn't your kernel that was the issue, in many cases it was the ROM. So I ask politely, can you make a ROM to go with any of your Kernels?
Hey guys! Help me convince wedgess to build us a matching ROM for his awesome Kernel! Whatever you decide, still thanks wedgess!!! :good::good::good:
Click to expand...
Click to collapse
hi, i feel a matching ROM for your kernels is a good idea.
+1
i hope you would consider making a matching ROM.
BTW, thanks for providing yet another kernel.
havent used JB/CM10, but will give it a try on your kernel.
thanks again.

+1 Matching ROM for UR Kernals

can i use it with paranoid android for jb... it has a camera fix so if i use this kernel will d camera fix still work??

update??
Seeing as you've already updated the CM9 version, are there any plans on updating CM10 one as well??
at any rate - great work so far, hope we'll see some updates soon!

dannyb0i said:
Seeing as you've already updated the CM9 version, are there any plans on updating CM10 one as well??
at any rate - great work so far, hope we'll see some updates soon!
Click to expand...
Click to collapse
Ill copy and paste this from my cm10 ARC thread: As for updating to fxp 138 there is no kernel changes, was going to add everything from my cm9 kernel today anyway. But not sure if ill use my free time for that today.... these kernels have taken me ALOT of time for a kernel ill never use as i dont own the devices. And its getting harder and harder to explain to the missus when im not making anything.
Sent from my GT-I9300

sidharth.299 said:
can i use it with paranoid android for jb... it has a camera fix so if i use this kernel will d camera fix still work??
Click to expand...
Click to collapse
Yes. Flash kernel then reflash fix
XAS

[ARC/S][KERNEL] LuPuS-JBv12 [JB 4.1 & 4.2][LINARO 4.7.3][UPDATED 08-06-13]

LuPuS MENU
You can run lupus menu from terminal or scriptmanager or similar, you must run as root or script will exit with a message
in terminal
Code:
su
lupus
* information is in lupus menu
1/ CIFS Menu *
Enable
Disable
2/ zRam Menu *
Enable
Disable
Set zRam size ( default is 60)
3/ Frandom Menu *
Enable
Disable
4/ USB OTG *
Enable
Disable
6/ Clean and Remove tweaks
Remove init.d's
7/ Tweak Menu
Note all tweaks are preset from here and option to set as init.d's
Clean all temp files
SQLITE optimizations
LMK Optimizations
Network optimizations
Defend against ARP spoofing
Remove android logger
SDcard speed tweak
Flag blocks as non-rotational
8/ Performance Menu
Note all options are se by user input from here and option to set as init.d's
Set CPU frequencies
Set Governor
Set IO-Scheduler
Voltage Control
VM tweaks (explained below)
VM Tweaks
dirty ratio and dirty background ratio 1 & 2
This controls how often the kernel writes data to "disk" (in our case the internal microSD system card, not the removable microSD card). When your apps write data to disk, Linux actually doesn't write the data out to the disk right away, it actually writes the stuff to system memory and the kernel handles when and how the data is actually going to be flushed to the disk. These values represent a percentage, the higher the percentage, the longer it waits to flush, the lower the percentage, the more often flushes will occur. Now remember, we are dealing with solid state storage, not the traditional disk platter and spindle. So we are actually able to delay flushes a little longer with solid state versus a traditional hard drive disk.
dirty_expire_centisecs
How old "dirty" data should be before the kernel considers it old enough to be written to disk. It is expressed in 100ths of a second.
dirty_writeback_centisecs
This is the interval of when the writeback daemons periodically wake up and write "old" data out to disk. It is expressed in 100ths of a second.
min free kbytes
This is used to force the Linux VM to keep a minimum number of kilobytes free. The VM uses this number to compute a pages_min value for each lowmem zone in the system. Each lowmem zone gets a number of reserved free pages based proportionally on its size. Default is 2048kb.
overcommit_memory
This controls overcommit of system memory, possibly allowing processes to allocate (but not use) more memory than is actually available.
0 - Heuristic overcommit handling. Obvious overcommits of address space are refused. Used for a typical system. It ensures a seriously wild allocation fails while allowing overcommit to reduce swap usage. root is allowed to allocate slighly more memory in this mode. This is the default.
1 - Always overcommit. Appropriate for some scientific applications.
2 - Don't overcommit. The total address space commit for the system is not permitted to exceed swap plus a configurable percentage (default is 50) of physical RAM. Depending on the percentage you use, in most situations this means a process will not be killed while attempting to use already-allocated memory but will receive errors on memory allocation as appropriate.
Swappiness
A property for the Linux kernel that changes the balance between swapping out runtime memory, as opposed to dropping pages from the system page cache. Swappiness can be set to values between 0 and 100 inclusive. A low value means the kernel will try to avoid swapping as much as possible where a higher value instead will make the kernel aggressively try to use swap space.
VFS Cache Pressure
File system cache (dentry/inode) is really more important than the block cache above in dirty ratio and dirty background ratio, so we really want the kernel to use up much more of the RAM for file system cache, this will increas the performance of the system without sacrificing performance at the application level. The default value is 100, as a percentage, and what you want to do is lower the value to tell the kernel to favor the file system cache and not drop them aggressively.

Changelog
Code:
[HIDE][B][U]v3 Changes[/U][/B]
[list]
- New Governor Intellidemand2 Thanks @ CosmicDan
- Couple of extra tweaks improvements to battery
- Fixed Wifi
- Reverted Cleancache
- Reverted my disabling of disabling sched_feautures if you get that
- Added USB OTG modules ( find attached zip at the end of the post----> NOTE Not a flashable zip)
- Added stable OC tablefor higher OCing
[/list]
[B][U]V4 Changes[/U][/B]
[LIST]- Updated LZO
- Added Cleancache
- Small code fixes
- Removed OC so phone doesnt boot at 2ghz for a split second causing boot problems (should now be fixed)
- Updated to latest FXP changes
- Optimizations for Linaro
- USB OTG flashable zip
[/LIST]
[B][U]v5[/U][/B]
[list]- Completely scrapped previous sources and started fresh
- Wifi problem fixed
- Fixed Battery drain ( Tester lost 0.2% overnigh with wifi on ) :victory:
- CWM fixed thanks @ Scritch007
- Built with Linaro 4.7
- Optimized for Linaro
- Thumbee
- Reverted to 1.6 max OC
- Lzo patched
- Use Google Snappy Compression / Decompression
- Added TINY RCU
- Uses uncompressed Image {why .img size is bigger)
- Custom improvements for overall smoother performance
[B][U]v6[/U][/B]
- built with latest linaro 4.7.3 (02-01-2013) - Thanks @ ChainFirex
- Added memcopy
- Added compaction
- Lowered vfs_cache_pressure
- LMK (lowmemorykiller) optimizations
- Improved CIFS support
- Enabled USB tether
- Disabled gentle_fair_sleepers
- Updated video drivers
- Clean up on wifi config
- Back-ported binder changes
- TWRP recovery - thanks @ championswimmer & TWRP team
- Thanks @ Wechy77 for customizing TWRP
[B][U]v7[/U][/B]
- Built with Linaro 4.7.3 (02-01-2013)
- Free'd RAM (disabled 720p) now 381mb - Thanks at Paul678
- Makefile optimisations (snapdragon & neon) - Thanks at Paul678
- Tweaked permormance on interactive governor - Thanks at Paul678
- Tweaked SIO io sched - Thanks at Paul678
- Free'd some RAM from loggers
- Reduce swappiness
- Fix PageHead
- Fix binder. use of uninitialized variable.
- Fix kernel/net Memory Leaks
- Eliminate kstrdup memory leak
- ipv4: force_igmp_version ignored when a IGMPv3 query received
- Fix Entropy Depleting (no more depleting) - Thanks @ Kees Cook
- enable ipsec tunnel support in kernel (Latest FXP Change)
- ARM7 optimsations + more in config
- TWRP v2.4 - Thanks @ Championswimmer, TWRP Team and Wechy 77 for parts of his LuPuS theme
- New zRam Enabler thats compatible with TWRP
[/list]
[B]v8[/B]
- Supports both 4.1 & 4.2 JB
- New IIO Scheduler ZEN thanks [user=2632235]@bbedward[/user]
- New Governor smartassH3 thanks [user=3057569]@Hero[/user]
- Tweaked Deadline IO scheduler
- Tweaked smartassv2
- Frandom
- SFB Net scheduler
- OC up to 1804.8MHz
- Logger backported from CAF
- Free RAM from logger
- LMK updated and optimized + various LMK tweaks
- Various ARM & RAM changes
- TinyRCU optimizations
- Optimized crc32 lib
- various VM changes
- Improved cleancache
- Undervolt LCD display, touch sensor proximity sensor & Wi-Fi thanks @ M66B
- Entropy tweaks
- Try fix for CRT animation [user=4266283]@paul678[/user]
- TWRP & CWM
- LuPuS Menu
- Auto Loading wifi
- All modules and init.d's included No need to flash anything after kernel
Plus alot more changes see [URL="https://github.com/garwedgess/semc-kernel-msm7x30/commits/jellybean"] for full list of credits and patches used[/URL]
[B]v9[/B]
- Latest changes to ALS and Button Backlight -- Thanks @ FXP
- Lowered OC to 1612.8Mhz
- Remove ALS and Button Backlight option from LuPuS Menu (no longer needed)
- Random reboots should be fixed ( for those who where having such issues )
[B]v10[/B]
- Fixed 3D from hanging under high intensity
- Fix pmem for HDPI mike NG (no more reboots??)
- CWM Recovery = VOLUME DOWN
- TWRP Recovery = VOLUME UP
- Clean up on LuPuS Menu
- Better wifi check
- KEY RESET ( Menu and POWER)
- Tuned Smartassv2 and SmartassH3 [user=2799345]@M66B[/user]
Thanks @ gu5t3r
[B]v11[/B]
- Fixed reboot to recovery
---- Custom CWM
- Clean-up of menu
- Added own wipe options menu -- with extra options
- Aroma File Manager from CWM --- Must have aroma ([COLOR=Red]aromafm.zip) placed on root of sdcard[/COLOR])
- Multi zip installer
- Reboot options - Power off re-added under this menu
- Pointless but people keep asking me for it so re-added wipe battery stats also.
- LuPuS themed...
- Fixed "dancing android"[/hide]
[B]v12[/B]
- Added option to enable Quick Key Reset (enable / disable via LuPuS Menu)
- Tuned Governors
* superbad
* lionheart
* virtuous
* darkside
* conservative
* smartassH3
- Really use google snappy zRam (improves zRam)
- Removed persistent RAM
- Added zCache
- Removed some more kernel debugging
- uninterruptible sleep
- Update SIO & CFQ
- Added Ultra-KSM
- Removed optimized AES & SHA1 routines
- Updated TWRP to 2.4.4
*Fixed Mount USB Storage in TWRP
- Updated CWM to latest Official CWM source
*Removed reboot options
*Re-added power off and reboot system now to main menu
- Improved wifi-loading scripts
- Clean up of lupus menu
- Fixed root issue on some devices
- Reworked kernel logs (can be found in /data/local/tmp)
- Boot.d - If phone is taking a long time to start move suspicious init.d scripts to /system/etc/boot.d
They will be run in background and won't affect boot time.
Downloads
If you like my work please consider buying me a beer or something else
by clicking the DONATE ME button, of course it isn't needed but greatly appreciated and keeps me motivated.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
LuPuS-ARC&S-JBv11 Downloads
480p
LuPuS_anzu_jBv12-ram.img
md5 = 7f969fffdf9cc994a6cacd1e86126e0a
720p
LuPuS_anzu_jBv12.1-full.img
md5 = 82ac86e630532e7e318070abe58dceb3
Mirrors -- all LuPuS Kernels can be found here
www.goo.im/devs/wedgess
Wifi is built in to kernels ramdisk NO MODULES NEEDED
DO NOT MIRROR MY DOWNLOADS
- zRam is not enabled by default unless on CM10 ROM, for AOKP to enable it flash the wedgess-zram-enabler.zip in CWM
- If for whatever reason you want to disable Zram after you have flashed the .zip, just go to ect/init.d and delete 00zram
People will ask so i'll just post it here---------to check if zRam is enabled go to terminal emulator or similar and type
Code:
free
or alternatively
Code:
cat /proc/swaps
Please Click Thanks :good:

Hell yeah!! The best kernel, with difference.
Downloading and flashing...

Hell yeah!!
great news thanx
big boss

Wifi doesn't work, even if you flash the fix.

Can i use fxp137 modules
Sent from my Arc S using xda premium

p47r0n said:
Wifi doesn't work, even if you flash the fix.
Click to expand...
Click to collapse
but my wifi is working fine, thanks!

looking forward to trying this when I get home, looks promising, finally for CM10!!!

A lupus Kernel for CM10 Arc???. I'm about to donate :good:
Just as an advice... If you develop an arc kernel for GingerBread (even CM 7.2), I'll donate again.
So much thanks for you.
:highfive:

caqo71 said:
Just as an advice... If you develop an arc kernel for GingerBread (even CM 7.2), I'll donate again.
So much thanks for you.
:highfive:
Click to expand...
Click to collapse
+1 stock GB I've seen he made one for Pro.

caqo71 said:
A lupus Kernel for CM10 Arc???. I'm about to donate :good:
Just as an advice... If you develop an arc kernel for GingerBread (even CM 7.2), I'll donate again.
So much thanks for you.
:highfive:
Click to expand...
Click to collapse
this kernel is for both arc wnd arc s thank you man tgat would be great as for cm7 u might just motivate me. but rite now i have no intention.
to poster above me i have made stock gb for the play as i own one not pro only ics for pro and arc/s
Sent from my GT-I9300

Instructions
- extract cifsfile.zip
- save cifs,ko file to your sdcard
- in terminal emulator
- cd sdcard
- su
- insmod cifs.ko
Hi
first of all, congratulations to your kernel, have him successfully installed and it runs okay.
But I do not get the go with CIFS.?

nice work, going to try it with AOKP JB. Does it support EXT4 and voltage controle?

Sorry, this kernel works on Paranoidandroid 2.11 Rom?

HorvathTheWizard said:
Sorry, this kernel works on Paranoidandroid 2.11 Rom?
Click to expand...
Click to collapse
Yes all cm10 based roms
Sent from my R800i

does wifi working 100% correct with this kernel?
Sent From Xperia Arc - CM10 Using Xda Premium!

caqo71 said:
Just as an advice... If you develop an arc kernel for GingerBread (even CM 7.2), I'll donate again.
:highfive:
Click to expand...
Click to collapse
+1 too.

i flashed the modules.. wifi not working
lt15i , cm10
EDIT: i reflashed modules/ fix and fixed permitions, wifi is working fine for now
EDIT2: after just few seconds of using, wifi has stopped working, and also system settings FC's a lot..
flashing back fxp's kernel

Marchello1 said:
i flashed the modules.. wifi not working
lt15i , cm10
EDIT: i reflashed modules/ fix and fixed permitions, wifi is working fine for now
EDIT2: after just few seconds of using, wifi has stopped working, and also system settings FC's a lot..
flashing back fxp's kernel
Click to expand...
Click to collapse
strange seem to be the only one wifi works fine
Sent from my GT-I9300

[KERNEL] [P6800 JB 4.1.2] [22 Mar] ROOT | ExTweaks | exFAT | SkyHigh Kernel [5.0.0]

[KERNEL] [P6800 JB 4.1.2] [22 Mar] ROOT | ExTweaks | exFAT | SkyHigh Kernel [5.0.0 FINAL]
** FOR P6800 (GSM/3G) device running JB 4.1.2 DXMD3 ONLY !! **
I am UpInTheAir part time kernel dev (hack) and Chef of SGT 7.7 JB & ICS ROMs, and now bring to you my P6800 Jellybean SkyHigh Kernel.
-- STABLE FINAL RELEASE --
* I don't pretend to know everything, so if you can be constructive and help out this project, please do so. You will find allot of answers by searching gitHub, XDA and SEARCH
FEATURES
* Based on official Samsung source JB DXMD3
* AUTO ROOT (only if you don't already have it)
insecure kernel
su binary 1.91
SuperSU 1.91
busyBox 1.20.2 linusyang installed to system/sbin
* STABLE - under SkyHigh "default" values & conditions
* ExTweaks app support for almost all kernel configurations + more !!
Many descriptions are in the app ! If you require more info, don't be lazy, please SEARCH like I did !
CPU
Boot boost CPU freq
Boost CPU freq (not fully tested)
Cortex wakeup boost (not fully tested)
Max normal freq
CPU freq OC / UC
CFS settings – Arch power
CPU idle mode (sleep & awake)
Scaling max suspend freq
Scaling min suspend freq
Scaling min standby freq
CPU temp throttle
CPU VOLTAGE
Set voltage individually for each 18-step freq
CPU TUNING (Awake & Sleep)
Set default CPU governor
Set governor configuration
Enable/disable hotplug
BUS
Bus voltage group
Thresholds
IO Tuning
Int/ext sdcard read-ahead cache
Dynamic Fsync control
Dynamic dirty page writeback control
IO scheduler (awake & sleep)
MEMORY TUNING
OOM control (screen on/off)
Dirty background ratio
Dirty ratio
Clean RAM cache
zRAM
Swappiness
zRAM stats
KSM control
GPU CONTROL
VPLL/MPLL mode
Freq control
Voltage control
Threshold control
Stay-count control
DISPLAY
FB early suspend delay (CRT TV off animation for SUPPORTED ROM)
Touch screen sensitivity
SOUND
Master volume gain
Headphone
Mic
Speaker
TWEAKS
- CortexBrain-Background-Process control
- Check CortexBrain-Background-Process Service
TCP security
TCP speed
TCP RAM
IPV6 (enabled by default - does not actually switch off)
CPU
Memory
System
Kernel
IO
OTHER
- Cron Task Control
- Test Cron task service
- Cron reset
Clean RAM cache task every hour
Update AD blocker task every week
DB optimizing (sqlite3) task every day
Clean app cache task every day
Zipalign task every day
fstrim lagfix task every day
Cron test task jobs
Zipalign apps now
Zipalign on boot
DB optimization (sqlite3) now
DB optimization (sqlite3) on boot
Battery scaling calibration (fuel-gauge reset) now
Ad blocker update now
Remove Ad blocker
FILE SYSTEM MAINTENANCE / REPAIR
Partitions scan
Data FS repair on boot
extSdCard repair on boot
Fix permissions on boot
Fix permissions now
Trim FS partitions (fstrim lagfix) on boot
Trim FS partitions (fstrim lagfix) now
INIT.D SUPPORT
Enable init.d script run control
USB MASS STORAGE (UMS) MODE
MTP <> Mass storage mode
WIFI & GPS
Clean WIFI lease
TCP congestion control
GPS region
GPS zone check
Update time
ROOT
Install root now
Remove root now
Root check
Auto install root on boot
MODULES
Frandom control
XPAD control
ISO CD-ROM control
UDF CD-ROM/DVD control
PROFILES
Profile check
UpInTheAir & SkyHigh Default (you can configure & save values for each, but not change the actual profile name)
BACKUP & RESTORE
Backup User settings now
Restore User settings now
RE-BOOT
Re-boot into Recovery
BUG-REPORT
Kernel bug-report
App bug-report
Android logger control
Kernel printk control
Module logger control
INFO
* SkyHigh default CPU min/max 200 > 1400 MHz (13-step)
* 18-step CPU 100 > 1800 MHz (Recommend setting 200-1400/1600 MHz)
Default = 13-step 200 > 1400 MHz
Stock = 6-step 200 > 1400 MHz
* No UV for stock frequencies 200-500-800-1000-1200-1400 MHz
* 4-step GPU : Default = 160-200-267-400 MHz
MPLL mode = 4-step GPU (default)
Stock = 2-step GPU (160-267 MHz)
Min freq = 50 MHz
Max MPLL freq = 400 MHz
Max VPLL freq = 520 MHz
Voltage = 800 > 1200 mV (+/- 50 mV increments)
* GPU UV / UC / OC
160 MHz = 950 mV (-50 mV > stock 1000 mV)
200 MHz = 1000 mv
267 MHz = 1050 mV (-50 mV > stock 1100 mV)
400 MHz = 1100 mV
* GPU Control
freq clock
voltage
step thresholds
stay counts
GPU BENCHMARK BEFORE (3DMark app)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
GPU BENCHMARK AFTER @ 400 MHz (3DMark app)
* GPU VPLL mode optional
For devices that can't handle VPLL – use MPLL mode instead
http://forum.xda-developers.com/showpost.php?p=33720501&postcount=4181&nocache=1&z=1048045007703282
* Busfreq up & down threshold control
Stock / SkyHigh default = 23
* Busfreq (memory) voltage group
default group = 1 (stock)
available group options 1 > 7
L0 = 400 L1 = 267 L2 = 160 MHz
1 > {1150000, 1050000, 1050000} SkyHigh default / stock
2 > {1125000, 1025000, 1025000}
3 > {1100000, 1000000, 1000000}
4 > {1075000, 975000, 975000}
5 > {1050000, 950000, 950000}
6 > {1025000, 950000, 925000}
7 > {1000000, 925000, 900000}
* Set L2 bus (memory) speed from 133 > 160 MHz
- Default MHz now:
L0 = 400
L1 = 267
L2 = 160 MHz / 1000 mV (stock = 133 MHz / 950 mV)
* Adaptive vfs_cache_pressure on suspend / resume
Hard coded values :
- Set @ 10 = save battery on device suspend
- Set @ 60 = better smoothness on device resume
Low vfs_cache pressure values save battery while idle, while a low value also causes stutter with longer up times.
* Governors
pegasusq = SkyHigh default (siyah kernel version & "freq for responsiveness" tweaked to 500 MHz by me)
HYPER
scary
wheatley
abyssplug
lulzactiveq (siyah kernel version & tweaked by me)
lazy
hotplug
ondemand
performance
ZZMoove 0.7d
* IO schedulers
SIO = SkyHigh default
ROW
VR
NOOP
Deadline
CFQ
* SOUND CONTROL via ExTweaks app
* Thunderbolt scheduler IO Tweaks [pikachu01]
* Implemented kernel to report USB trickle charge (previously just reports discharging).
- Those devices without modified SystemUI.apk will now show battery charging animation whilst on USB power source
* Force USB charging source to be detected as AC
- faster USB charge using same circuitry
- limited by:
1. charging source max output
2. kernel - up to max 1500 mA (same is actual AC)
* Auto set init.d scripts to 777 – no need to manually set script permissions, just drop in & reboot
* Reduced GUI lag
- Frandom
- fstrim lagfix - NOT ENABLED BY DEFAULT
- Disabled gentle fair sleepers
- RAM management OOM adj & minfree values from V6SuperCharger
* Improved touch-screen sensitivity (on both battery and charge)
* Mount partitions NOATIME and NODIRATIME by default
* R/W and auto-mounting of exFAT USB-OTG & external sdcard using official Samsung Open Source modules v1.2.5
* modded ROM /system/etc/vold.fstab to permit exFAT mounting
* NTFS R/W OTG file system support (require app to mount)
* UDF/ISO file system support - BluRay (require app to mount) - not tested !
* Network filesystem support
In-built CIFS
In-built NFS (not tested)
* TCP algorithms
- cubic = default
- reno
- westwood+ (some users of other devices have reported faster network throughput speeds)
* In-built zRAM support
* LZ4 compression implemented & enabled for zRAM [psndna88 & Yank555.lu]
* Support paging of anonymous memory (Swap)
* General optimized for size
* Kernel compression = xz
* Support for iPad, iPhone, iPhone_3G/S, iPhone_4/4S, iPhone_5 (not tested as I don't own "rotten fruit" )
* UV motor -100 mV (3.1V → 3.0V)
* UV LED -100 mV (3.2V → 3.1V)
* fbearlysuspend control - allow CRT-off animation in SUPPORTED ROMs)
* Thermal throttle control (default on) – be careful here, do you want to melt your CPU?
* Dynamic read-ahead implemented and set at 1024 KB (variable)
* Int/External sdcard read ahead cache = variable KB
* Internal & external sdcard IO schedulers = SIO
* Dynamic FSync control v1.2 implemented and enabled
* Dynamic management of dirty page writebacks
* Android Logger Control disabled
* Linux printk Control disabled
* KSM support
* Custom bootanimation support
* Custom boot sound support
* Support for XPAD gamepad & rumblepad controller
* Reduce Android logger RAM usage
* Disabled kernel debugging to reduce zImage size
* Disabled some module logging
* Disable mali tracking debug
* Disable zRAM debug
* Triangle Away app support
* vm swappiness = 20 (performance)
* Free pagecache. dentries and inodes will be managed by /proc/sys/vm/vfs_cache_pressure
echo "1" > /proc/sys/vm/drop_caches
* System property accessory tweak values from V6SuperCharger
dalvik.vm.heapgrowthlimit 130m
dalvik.vm.heapsize 130m
persist.sys.purgeable_assets 1
windowsmgr.max_events_per_sec 90 (200 set as SkyHigh default)
* Virtual memory & kernel tweak
# values from V6SuperCharger & Kick Ass Kernelizer [[email protected]]
echo "10" > /proc/sys/fs/lease-break-time
echo "0" > /proc/sys/kernel/panic
echo "0" > /proc/sys/kernel/panic_on_oops
echo "0" > /proc/sys/vm/block_dump
echo "60" > /proc/sys/vm/dirty_background_ratio
echo "95" > /proc/sys/vm/dirty_ratio
echo "0" > /proc/sys/vm/laptop_mode
echo "15360" > /proc/sys/vm/min_free_kbytes
echo "4" > /proc/sys/vm/min_free_order_shift
echo "0" > /proc/sys/vm/oom_dump_tasks
echo "0" > /proc/sys/vm/oom_kill_allocating_task
echo "1" > /proc/sys/vm/overcommit_memory
echo "0" > /proc/sys/vm/panic_on_oom
#echo "20" > /proc/sys/vm/swappiness ########### Already implemented
#echo "10" > /proc/sys/vm/vfs_cache_pressure ########### Implemented adaptive vfs_cache_pressure on suspend (10) / resume (60)
* Misc tweaks for battery life
# values from V6SuperCharger & Kick Ass Kernelizer [[email protected]]
echo "65536" > /proc/sys/kernel/msgmax
echo "2048" > /proc/sys/kernel/msgmni
echo "500 512000 64 2048" > /proc/sys/kernel/sem
echo "2097152" > /proc/sys/kernel/shmall
echo "268435456" > /proc/sys/kernel/shmmax
echo "4096" > /proc/sys/kernel/shmmni
#
echo "524288" > /proc/sys/fs/file-max
echo "32000" > /proc/sys/fs/inotify/max_queued_events
echo "256" > /proc/sys/fs/inotify/max_user_instances
echo "10240" > /proc/sys/fs/inotify/max_user_watches
echo "0" > /proc/sys/kernel/sched_child_runs_first
echo "524288" > /proc/sys/kernel/threads-max
* TCP Speed & Security
# values from V6SuperCharger & Kick Ass Kernelizer [[email protected]]
# 3G TurboCharger Enhancement
#
# Google's public DNS settings
#
/system/bin/setprop net.dns1 8.8.8.8 ########### Not sticking
/system/bin/setprop net.dns2 8.8.4.4
#
# ReadMin, ReadInitial, ReadMax, WriteMin, WriteInitial, WriteMax
/system/bin/setprop net.tcp.buffersize.default 6144,87380,110208,6144,16384,110208
/system/bin/setprop net.tcp.buffersize.wifi 262144,524288,1048576,262144,524288,1048576
/system/bin/setprop net.tcp.buffersize.lte 262144,524288,3145728,262144,524288,3145728
/system/bin/setprop net.tcp.buffersize.hsdpa 6144,262144,1048576,6144,262144,1048576
/system/bin/setprop net.tcp.buffersize.evdo_b 6144,262144,1048576,6144,262144,1048576
/system/bin/setprop net.tcp.buffersize.umts 6144,87380,110208,6144,16384,110208
/system/bin/setprop net.tcp.buffersize.hspa 6144,87380,262144,6144,16384,262144
/system/bin/setprop net.tcp.buffersize.gprs 6144,8760,11680,6144,8760,11680
/system/bin/setprop net.tcp.buffersize.edge 6144,26280,35040,6144,16384,35040
#
# Queue size modifications
echo "20480" > /proc/sys/net/core/optmem_max
#echo "262144" > /proc/sys/net/core/rmem_default
echo "1048576" > /proc/sys/net/core/rmem_max
#echo "262144" > /proc/sys/net/core/wmem_default
echo "1048576" > /proc/sys/net/core/wmem_max
echo "50" > /proc/sys/net/unix/max_dgram_qlen
#
# Be sure that autotuning is in effect
echo "1" > /proc/sys/net/ipv4/tcp_moderate_rcvbuf
#
echo "0" > /proc/sys/net/ipv4/ip_no_pmtu_disc
echo "1" > /proc/sys/net/ipv4/route/flush
echo "0" > /proc/sys/net/ipv4/tcp_ecn
echo "1" > /proc/sys/net/ipv4/tcp_fack
echo "1" > /proc/sys/net/ipv4/tcp_rfc1337
#echo "6144 87380 1048576" > /proc/sys/net/ipv4/tcp_rmem ########### Not sticking
echo "1" > /proc/sys/net/ipv4/tcp_sack
echo "0" > /proc/sys/net/ipv4/tcp_timestamps
echo "1" > /proc/sys/net/ipv4/tcp_window_scaling
#echo "6144 87380 1048576" > /proc/sys/net/ipv4/tcp_wmem ########### Not sticking
echo "6144" > /proc/sys/net/ipv4/udp_rmem_min
echo "6144" > /proc/sys/net/ipv4/udp_wmem_min
#
# Re-use sockets in time-wait state
echo "1" > /proc/sys/net/ipv4/tcp_tw_recycle
echo "1" > /proc/sys/net/ipv4/tcp_tw_reuse
#
# Hardening the TCP/IP stack to SYN attacks
echo "1024" > /proc/sys/net/ipv4/tcp_max_syn_backlog
echo "2" > /proc/sys/net/ipv4/tcp_syn_retries
echo "2" > /proc/sys/net/ipv4/tcp_synack_retries
#
# Bump up tw_buckets in case we get DoS'd
echo "16384" > /proc/sys/net/ipv4/tcp_max_tw_buckets
#
# Ignore pings
echo "1" > /proc/sys/net/ipv4/icmp_echo_ignore_all
#
# Don't reply to broadcasts (prevents joining a smurf attack)
echo "1" > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
#
# Enable bad error message protection (should be enabled by default)
echo "1" > /proc/sys/net/ipv4/icmp_ignore_bogus_error_responses
#
# Don't cache connection metrics from previous connection
echo "1" > /proc/sys/net/ipv4/tcp_no_metrics_save
#
echo "15" > /proc/sys/net/ipv4/tcp_fin_timeout
echo "30" > /proc/sys/net/ipv4/tcp_keepalive_intvl
echo "5" > /proc/sys/net/ipv4/tcp_keepalive_probes
echo "1800" > /proc/sys/net/ipv4/tcp_keepalive_time
#
# Don't pass traffic between networks or act as a router
# Disable IP Packet forwarding (should be disabled already)
echo "0" > /proc/sys/net/ipv4/ip_forward
#
echo "0" > /proc/sys/net/ipv4/conf/all/send_redirects
echo "0" > /proc/sys/net/ipv4/conf/default/send_redirects
#
# Enable spoofing protection (turn on reverse packet filtering)
echo "1" > /proc/sys/net/ipv4/conf/all/rp_filter
echo "1" > /proc/sys/net/ipv4/conf/default/rp_filter
#
# Don't accept source routing
echo "0" > /proc/sys/net/ipv4/conf/all/accept_source_route
echo "0" > /proc/sys/net/ipv4/conf/default/accept_source_route
#
# Don't accept redirects
echo "0" > /proc/sys/net/ipv4/conf/all/accept_redirects
echo "0" > /proc/sys/net/ipv4/conf/all/secure_redirects
echo "0" > /proc/sys/net/ipv4/conf/default/accept_redirects
echo "0" > /proc/sys/net/ipv4/conf/default/secure_redirects
* Power saving tweaks
pm.sleep_mode 1
ro.ril.disable.power.collapse 1
wifi.supplicant_scan_interval 180
CREDITS
* My family !!
* Samsung
* XDA
* wanam repo, ezykernel ICS diff, Ryuinferno, CM, boeffla, GM, redpill more to add yet
* Chainfire for root
* GM - siyah kernel
* AndreiLux
* dorimanx
* Christopher83
* zeppelinrox - V6SuperCharger - KAK - 3G TurboCharger values and Fix Emissions script
* idcrisis for permission to implement CrossBreeder entropy into kernel - no success as yet...
* pikachu01 FOR SOME tHUNDERBOLT TWEAKS
* Suxsem for fstrim
* XDA devs that I cherry pick code, values & ideas from. The list is never ending...
* edan1979 for excellent feedback & also nutley for volunteering to test
GPL COMPLIANT - SOURCE: >> GitHub
.

Download & change-log
DOWNLOAD & CHANGE-LOG
** DISCLAIMER : FLASH AT YOUR OWN RISK **
WARNING :
* Under-volting can cause instability
* Over-clocking can cause freeze/reboot, heat & damage to CPU, GPU or other hardware
* Any customizations may void warranty
P6800 GSM/3G JB 4.1.2 DXMD3 ONLY
INSTALLATION
** DO NOT USE ANY 3RD PARTY TWEAKS OR “PERFORMANCE” TYPE APPS & REMOVE ALL ROM /KERNEL SCRIPTS FROM /system/etc/init.d FOLDER **
1. NANDROID (just in case)
2. Have installed any P6800 JB 4.1.2 ROM based from official Samsung sources
3. Remove any previous CPU control settings from starting at boot, remove any 3rd party tweaks etc
4. Flash in custom recovery (CWM or TWRP) to auto wipe previous kernel profile remnants ie. crontab. logs & /data/.siyah folder
5. If requested by Recovery to install SU, DO NOT. Instead - Let the kernel do it on boot
SkyHigh Kernel : Latest release is v5.0.0 FINAL ExTweaks Edition
CWM.zip v5.0.0 FINAL http://d-h.st/n3S
Archive : Working CWM Official Released Legacy Versions (UNSUPPORTED)
v0.7
v1.0.3
v2.0.8
v2.1.0
v2.2.0
v2.7.0
v2.8.0
v3.2.0
v3.3.0
v3.4.2
v3.5.0
v3.6.0
v3.7.0
v3.8.0
v3.9.1
v4.0.0
v4.1.0
v4.2.0 - Stable for some users (4-step GPU control)
v4.3.0
v4.4.0
v4.6.0
v4.6.1
v4.7.0b
v4.8.0b
v4.9.0b
-------------------------------------------------------------------
Stock Kernel :
CWM.zip DXMD3 http://d-h.st/tKE
ODIN.tar DXMD3 http://d-h.st/yxr
++ PLEASE DO NOT REDISTRIBUTE - LINK HERE INSTEAD ++
BUGS
* Check if it is actually a stock firmware bug first using stock kernel -BEFORE- posting in this thread or elsewhere
1. Random screen tint reported on both stock & SkyHigh kernels using CPU control app (Read Post #3)
2. Screen OFF reboot with ONLY SkyHigh DEFAULT kernel settings ( no "performance" type apps, scripts etc) Please read ISSUES section for help or flash v4.2.0 for stabilty
.
.

FAQ & HELP
FAQ & HELP
MY RECOMMENDATIONS
* Governor = pegasusq, lulzactiveq, or ZZMoove
* IMO = Performance → → Battery
1. on-demand
2. pegasusq (snappy, but easier on battery than on-demand)
3. lulzactiveq
4. ZZMoove
* Scheduler = SIO
* CPU freq = 200-1400/1600 MHz
* CPU vdd levels = SkyHigh "defaults"
* Enable zRAM for better mulitasking
* CPU Control app = ExTWeaks
Don't forget to use only one Control app at a time. They will conflict !
ISSUES?
1 Remove any kernel related init.d tweaks, 3rd party performance type apps etc
2 Wipe your CPU control app(s) data (menu > settings > applications > "your control app(s)" > clear data/cache)
3 Use only ONE CPU control app ! USE EXTweaks
4 Open SuperSU app > settings > full unroot (or unroot from with EXTweaks options)
5 Boot into recovery and wipe cache & dalvik cache
6 Re-flash SkyHigh Kernel
7 If requested by recovery - DO NOT install root (let the kernel do it)
9 Reboot
8 If still issue such as bootloop etc, try using MPLL mode for GPU, and or increase GPU voltages +50 mV
9 Try a kernel "legacy" versions
10 Back to stock for you
RANDOM SCREEN TINT AFTER CHANGING GOVERNOR
* Turn screen OFF-ON
* Use only SkyHigh defaults values
* Don't use a CPU control app to change kernel settings - Use init.d script instead
* OR IF IT BOTHERS YOU,...... DON'T USE THE KERNEL
zRAM
Info here : (INFO)What is zram and how does it work???
LOGS
* You can find various ExTweaks logs in the /data folder:
/data/.siyah
/data/extSdCard_fix.log
/data/fsrepair.log
/data/fstrim_lagfix.log
/data/Ran_FixEmissions.log
/data/sqlite.log
/data/zipalign.db
/data/zipalign.log
/data/crontab
PREVENT/REDUCE SCREEN-OFF FLICKER FOR CRT-OFF ANIMATION ENABLED ROMs
* Set fbearlysuspend msleep between 100 and 500 ms
* Set to 0 if you haven't any CRT-off animation mod
DYNAMIC MANAGEMENT OF DIRTY PAGE WRITEBACKS
* [Christopher83]
This feature allows to have two different intervals for dirty page
writebacks and to dynamically manage them when the system has been
resumed (it's active) or when has been suspended.
Three new procfs parameters are exposed inside /proc/sys/vm path:
- dynamic_dirty_writeback is the activation status of this feature,
set 1 to enable it, set 0 to disable it and use the standard behaviour
- dirty_writeback_active_centisecs is the interval for the dirty page
writebacks when the system is active (screen on)
- dirty_writeback_suspend_centisecs is the interval for the dirty page
writebacks when the system is suspended (screen off)
This feature is in part inspired on Francisco Franco's patch:
https://github.com/franciscofranco/mako/commit/34d79548cf16b69c7d0154836018e7f258a22947
Click to expand...
Click to collapse
WHAT IS A CUSTOM KERNEL
* First of all, watch this : Android Basics 101: Understanding Kernels – XDA Developer TV
* Is usually' modified and complied from source.
* My very first successfully compiled kernel just included the "SkyHigh" name. I suppose you could call that a modified "stock" kernel. On the other hand, you could also argue that any firmware modified from either official or built from sources could be called "custom".
HAVE THE STOCK KERNELS ATTACHED BEEN MODIFIED
* If you are referring to the stock MD3 kernels in Post #2, NO
* I just extracted the zImage from official firmware and repackaged for flashing via custom recovery or Odin. There are no changes made to the zImage. I have no plans to modify these.
ENTROPY
* MAX pool sixe 4096
* It's not instant, just use your device and it will grow.
* No need for entropy generator apps that consume battery (use extra CPU cycles)
WHAT ARE GOVERNORS / SCHEDULERS ETC
* Excellent source of info by droidphile :
[REF][TWEAKS] Kernel Governors, Modules, I/O Schedulers, CPU Tweaks, AIO App Configs
FSTRIM LAGFIX
* fstrim is more of a maintenance binary. Android 4.2.2 and below are more prone to lag over time and prevalent as your internal storage is used up.
* Trims system, preload, data & cache partitions
* fstrim binary set to run by init.d 90lagfix script after boot to reduce impact on boot time
* A manual reboot once a week is suggested. Those users who have ample internal storage and or recently formatted their partitions via ROM flash or Nandroid restore may see little difference for now.
* More info : Google yourself or Nexus Storage Performance Over Time & TRIM 20130829
CUSTOM BOOT ANIMATION SUPPORT
1. copy bootanimation.zip to /system/media/ folder (mount folder r/w to paste)
2. ensure set permissions rw-rw-rw-
3. reboot
NOTE :
* For any further help or instructions for bootanimation, please open your own forum Q&A thread or post in a relevant bootanimation thread. There are many already built and can be found by searching.
* The size we need for our tab is 800x1280 or 1280x800 (depending on portrait or landscape)
CUSTOM BOOT SOUND SUPPORT
* Place custom boot sound PowerOn.ogg in /system/media
* To mute, create an empty file named mute in /system/media
* To unmute, create an empty file named unmute in /system/media
* To restore original boot sound, create an empty file named ori_sound in /system/media
* Reboot device after each process
NOTE :
* when creating a custom boot sound, make sure you use a capital "P" and "O" in PowerOn.ogg
* I will not provide a tutorial for creating boot sounds, you can Google yourself
BENCH-MARKING
Freeze or Re-Boot
1 Try increase CPU 1600 Mhz voltage by +25 mV or +50 mV. I would not recommend any more than that !
2 Lower CPU OC back to stock max 1400 MHz setting
3 To find out which frequency cause the freeze :
a) If you have UV the CPU and the device freeze, obviously you need to increase the voltage to a particular frequency step(s)
b) Do a stress test with SetCPU (or other app) and lock your max frequency for each step (DO NOT SET ON BOOT WHILST TESTING)
4 Try a different governor
5 Use a different benchmark app/tool
AnTuTu Crashes?
* Try another benchmark app !
Low Bench-Marking Scores
* Consectutive tests as well as OC may heat the CPU high enough where thermal limiting occurs. Well here you go........... I observed my CPU regularly drop to 800 MHz after hitting a thermal limit during testing.
Here's the proof !
https://github.com/UpInTheAir/P6800_JB_SkyHigh_Kernel/blob/master/arch/arm/mach-exynos/mach-px.c
Code:
#ifdef CONFIG_EXYNOS4_SETUP_THERMAL
/* below temperature base on the celcius degree */
struct s5p_platform_tmu px_tmu_data __initdata = {
.ts = {
[COLOR="Red"].stop_1st_throttle = 61,
.start_1st_throttle = 64,[/COLOR]
.stop_2nd_throttle = 87,
.start_2nd_throttle = 103,
.start_tripping = 110,
.start_emergency = 120,
.stop_mem_throttle = 80,
.start_mem_throttle = 85,
},
.cpufreq = {
.limit_1st_throttle = [COLOR="Red"]800000[/COLOR], /* 800MHz in KHz order */
.limit_2nd_throttle = 200000, /* 200MHz in KHz order */
* With some undervolt and governor tuning, little OC impact will be felt on battery. Not everyone fixes their CPU to max with performance governor so, providing your hardware can handle it, some OC should be OK for everyday use as the CPU only briefly scales to max freq with the 'right' governor.
* As you can see, this could be easily changed to allow (cheat) in benchmarks. This won't make much difference to everyday use, but IMO shouldn't be touched. My silicon may not handle it
RESET CUSTOM FLASH COUNTER
*There is a Samsung Galaxy Tab 7.7 flash counter introduced for P6800 JB 4.1.2 DXMD3, so any modified ROM, kernel or recovery flashed via PC Odin will increase the counter.
1. Have installed my P6810/P6800 SkyHigh kernel for JB 4.1.2 (patched for triangle away compatibility)
2. Install triangle away app v3.26
3. Reset counter
4. Reboot as requested
5. To check > open app again, or, power off and enter download mode
* Your custom ROM, kernel, recovery & root remain intact
Anything else, IF I find the time
.

UpInTheAir said:
I am UpInTheAir and Chef of SGT 7.7 ICS ROMs, and now bring to you my P6800 Jellybean SkyHigh Kernel.
** FOR P6800 GSM/3G device running JB 4.1.2 DXMD3 ONLY !! **
-- STABLE WORK-IN-PROGRESS --
* I am NOT a recognised developer, and don't actually use the P6800, but thought I would help out this forum by trying to develop a P6800 JB kernel.
* I don't pretend to know everything, so if you can be constructive and help out this project, please do so. You will find allot of answers by searching XDA and Google
FEATURES
* Based on official Samsung source MD3
* Default CPU max 1400 MHz
* OC to max 1600 MHz (support with CPU control app)
* CPU voltage control interface (UV support with a CPU control app)
* Enabled pegasus governor
* NTFS filesystem support
* Support paging of anonymous memory (Swap)
* General optimized for size
* Kernel compression = Gzip
* Default governor = on-demand
* Default IO scheduler = CFQ
* STABLE
TO DO
* Add more governors and IO schedulers
* UV GPU
* OC GPU
* UV screen
* Frandom support
* Other various useful modules
* Auto root
* init.d support
* STweaks support
* Increase AC & USB charge rate
* Custom bootanimation support
* Lots more
CREDITS
* Samsung
* XDA
* wanam repo, ezykernel ICS diff, more to add yet
* edan1979 for excellent feedback & also nutley for volunteering to test
* Development has been slow, but still progressing.......
* Things will speed up (time permitting) once JB source is released for my P6810 model and I can test changes on my own device and subsequent mirror the development
* SOURCE: Still being uploaded to github, and commits will be reflected a soon as I'm home (currently away) and PC stops freezing. Please be patient on this.
DOWNLOAD & CHANGE-LOG in Post #2
FAQ & HELP in Post #3
.
Click to expand...
Click to collapse
Nice!
I was planning to do this for sometime but I'm stuck at other things. I have already prepared the config for 6810 and i815. If you have time, I can send you those files to build the kernel for p6810. Hoping it will help you creating a custom stock rom for p6810 before Samsung!
Thanks again for contribution to our community! :good:

daniel_hk said:
Nice!
I was planning to do it for sometime but I'm stuck at other things. I have already prepared the config for 6810 and i815. If you have time, I can send you those files to build the kernel for p6810. Hoping it will help you creating a custom stock rom for p6810 before Samsung!
Thanks again for contribution to our community! :good:
Click to expand...
Click to collapse
Sounds great. Thanks !
Much easier to build and test with device in hand, so hoping for the official P6810 JB update soon. Although appreciate what you bring to the community with JB, If Samsung haven't released it in the next month, probably sell the tab for the "next big thing", as long as it's 7 or 8 in...... My 9 yo boy wants the tab though, so things could still change
Sent from my GT-I9500 using xda premium

already flashed.
booting : ok
overclock to 1600: work
set pegasusq governor: work
will try to uv and report.
Sent from my GT-P6800 using Tapatalk HD

UpInTheAir said:
Sounds great. Thanks !
Much easier to build and test with device in hand, so hoping for the official P6810 JB update soon. Although appreciate what you bring to the community with JB, If Samsung haven't released it in the next month, probably sell the tab for the "next big thing", as long as it's 7 or 8 in...... My 9 yo boy wants the tab though, so things could still change
Sent from my GT-I9500 using xda premium
Click to expand...
Click to collapse
Already sent the link in PM. It should work with the latest JB source for 6800.
Good luck and let's hear more good news!
Edit: attached here View attachment p8-wifi_defconfig.tar.gz

daniel_hk said:
Already sent the link in PM. It should work with the latest JB source for 6800.
Good luck and let's hear more good news!
Edit: attached here View attachment 1979341
Click to expand...
Click to collapse
Got it.
Thanks.
I'll just keep chipping away at the development until I have to go away to work again,.... probably early next month.
Sent from my GT-I9500 using xda premium

My 9 yo boy wants the tab though, so things could still change
Click to expand...
Click to collapse
Seems to me that a Tab 7.7 is about perfect for a little boy.
Keep it in the family:good:

Thanks dev for your kind support for the tab!

anyone try this kernel on the erobot rom yet ?

golfinggino said:
anyone try this kernel on the erobot rom yet ?
Click to expand...
Click to collapse
yes its working fine...

Hi, move to see that our device is not given up by developers
One request: after moving to JB I noticed that the sound is much lower in JB. Is it possible to fix it?
Sent from my GT-P6800 using Tapatalk 2

200mpx said:
Hi, move to see that our device is not given up by developers
One request: after moving to JB I noticed that the sound is much lower in JB. Is it possible to fix it?
Sent from my GT-P6800 using Tapatalk 2
Click to expand...
Click to collapse
Probably a way. In the mean time, take a look at this thread for SGS4 and see if it's applicable to your device....
Maybe with just a few minor adjustments, you can tweak from within your own ROM. Worth a look.
http://forum.xda-developers.com/sho...Modifications for i9500 (i9505 incompatible)!
Sent from my GT-I9500 using xda premium

Hi, how about NTFS filesystem support? I put via OTG usb flash drive 32gb formated as NTFS and tab can't recognize drive.
ROM is eRobot v1.0 and kernel is SkyHigh Kernel v0.7. May be i don't make some settings?

partola1 said:
Hi, how about NTFS filesystem support? I put via OTG usb flash drive 32gb formated as NTFS and tab can't recognize drive.
ROM is eRobot v1.0 and kernel is SkyHigh Kernel v0.7. May be i don't make some settings?
Click to expand...
Click to collapse
Firstly, does it work with your external sdcard formatted as NTFS ?
Secondly, Try USB OTG Helper app from Google Play and see if you have any luck mounting the USB stick.
Third, does it work with the stock kernel? You haven't said as I requested in OP...
Sent from my GT-I9500 using xda premium

Source : GitHub
I am now complying with the GPL and have managed to make the source/changes available for everyone to see.
Took a while, but eventually managed to upload and commit to GitHub.
Link now in OP
Now back to developing............
Edit: having a few git issues......
Edit2: Have gitHub back and correct. Just learning the basics and now lost some dev time because of it............. off to bed, always tomorrow
.

my uv setting
erobot rom
Sent from my GT-P6800 using Tapatalk HD

theerachai said:
my uv setting
erobot rom
Sent from my GT-P6800 using Tapatalk HD
Click to expand...
Click to collapse
Sweet !
Have you stress test each step to ensure stability?
You will need to lock the max frequency to that of each step, make sure it is NOT "set on boot" (during testing), so you can recover easily if device freeze or reboot occurs.

As a previous user didn't bother to give any further feedback on the NTFS, could someone using this kernel please check this:
1. Run Android Terminal Emulator app
2. su
3. Allow Superuser permission
4. lsmod
( the "l" is a lower case "L" )
What do you have? Please post a screenshot.
Also, check system/lib/modules for ntfs.ko
Cheers
Sent from my GT-I9500 using xda premium

[KERNEL] [P6810 JB 4.1.2] [22 Mar] ROOT | ExTweaks | exFAT | SkyHigh Kernel [3.0.0]

[KERNEL] [P6810 JB 4.1.2] [22 Mar] ROOT | ExTweaks | exFAT | SkyHigh Kernel [3.0.0 FINAL]
** ONLY FOR P6810 Wi-Fi device running:
1. bodivas JB 4.1.2 DXMD3 ROM Port
-or-
2. [ROM] 24 Dec [Aroma] [P6810 / P6800] Multi-Language & Multi-Window JB 4.1.2 | SkyHigh [v3.5]
I am UpInTheAir part time kernel dev (hack) and Chef of SGT 7.7 JB & ICS ROMs, and now bring to you my P6810 Jellybean SkyHigh Kernel.
-- STABLE FINAL RELEASE --
* I don't pretend to know everything, so if you can be constructive and help out this project, please do so. You will find allot of answers by searching gitHub, XDA and SEARCH
FEATURES
* Based on official Samsung source JB DXMD3
* AUTO ROOT (only if you don't already have it)
insecure kernel
su binary 1.91
SuperSU 1.91
busyBox 1.20.2 linusyang installed to system/sbin
* STABLE - under SkyHigh "default" values & conditions
* ExTweaks app support for almost all kernel configurations + more !!
Many descriptions are in the app ! If you require more info, don't be lazy, please SEARCH like I did !
CPU
Boot boost CPU freq
Boost CPU freq (not fully tested)
Cortex wakeup boost (not fully tested)
Max normal freq
CPU freq OC / UC
CFS settings – Arch power
CPU idle mode (sleep & awake)
Scaling max suspend freq
Scaling min suspend freq
Scaling min standby freq
CPU temp throttle
CPU VOLTAGE
Set voltage individually for each 18-step freq
CPU TUNING (Awake & Sleep)
Set default CPU governor
Set governor configuration
Enable/disable hotplug
BUS
Bus voltage group
Thresholds
IO Tuning
Int/ext sdcard read-ahead cache
Dynamic Fsync control
Dynamic dirty page writeback control
IO scheduler (awake & sleep)
MEMORY TUNING
OOM control (screen on/off)
Dirty background ratio
Dirty ratio
Clean RAM cache
zRAM
Swappiness
zRAM stats
KSM control
GPU CONTROL
VPLL/MPLL mode
Freq control
Voltage control
Threshold control
Stay-count control
DISPLAY
FB early suspend delay (CRT TV off animation for SUPPORTED ROM)
Touch screen sensitivity
SOUND
Master volume gain
Headphone
Mic
Speaker
TWEAKS
- CortexBrain-Background-Process control
- Check CortexBrain-Background-Process Service
TCP security
TCP speed
TCP RAM
IPV6 (enabled by default - does not actually switch off)
CPU
Memory
System
Kernel
IO
OTHER
- Cron Task Control
- Test Cron task service
- Cron reset
Clean RAM cache task every hour
Update AD blocker task every week
DB optimizing (sqlite3) task every day
Clean app cache task every day
Zipalign task every day
fstrim lagfix task every day
Cron test task jobs
Zipalign apps now
Zipalign on boot
DB optimization (sqlite3) now
DB optimization (sqlite3) on boot
Battery scaling calibration (fuel-gauge reset) now
Ad blocker update now
Remove Ad blocker
FILE SYSTEM MAINTENANCE / REPAIR
Partitions scan
Data FS repair on boot
extSdCard repair on boot
Fix permissions on boot
Fix permissions now
Trim FS partitions (fstrim lagfix) on boot
Trim FS partitions (fstrim lagfix) now
INIT.D SUPPORT
Enable init.d script run control
USB MASS STORAGE (UMS) MODE
MTP Mass storage mode
WIFI & GPS
Clean WIFI lease
TCP congestion control
GPS region
GPS zone check
Update time
ROOT
Install root now
Remove root now
Root check
Auto install root on boot
MODULES
Frandom control
XPAD control
ISO CD-ROM control
UDF CD-ROM/DVD control
PROFILES
Profile check
UpInTheAir & SkyHigh Default (you can configure & save values for each, but not change the actual profile name)
BACKUP & RESTORE
Backup User settings now
Restore User settings now
RE-BOOT
Re-boot into Recovery
BUG-REPORT
Kernel bug-report
App bug-report
Android logger control
Kernel printk control
Module logger control
INFO
* SkyHigh default CPU min/max 200 > 1400 MHz (13-step)
* 18-step CPU 100 > 1800 MHz (Recommend setting 200-1400/1600 MHz)
Default = 13-step 200 > 1400 MHz
Stock = 6-step 200 > 1400 MHz
* No UV for stock frequencies 200-500-800-1000-1200-1400 MHz
* 4-step GPU : Default = 160-200-267-400 MHz
MPLL mode = 4-step GPU (default)
Stock = 2-step GPU (160-267 MHz)
Min freq = 50 MHz
Max MPLL freq = 400 MHz
Max VPLL freq = 520 MHz
Voltage = 800 > 1200 mV (+/- 50 mV increments)
* GPU UV / UC / OC
160 MHz = 950 mV (-50 mV > stock 1000 mV)
200 MHz = 1000 mv
267 MHz = 1050 mV (-50 mV > stock 1100 mV)
400 MHz = 1100 mV
* GPU Control
freq clock
voltage
step thresholds
stay counts
GPU BENCHMARK BEFORE (3DMark app)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
GPU BENCHMARK AFTER @ 400 MHz (3DMark app)
* GPU VPLL mode optional
For devices that can't handle VPLL – use MPLL mode instead
http://forum.xda-developers.com/showpost.php?p=33720501&postcount=4181&nocache=1&z=1048045007703282
* Busfreq up & down threshold control
Stock / SkyHigh default = 23
* Busfreq (memory) voltage group
default group = 1 (stock)
available group options 1 > 7
L0 = 400 L1 = 267 L2 = 160 MHz
1 > {1150000, 1050000, 1050000} SkyHigh default / stock
2 > {1125000, 1025000, 1025000}
3 > {1100000, 1000000, 1000000}
4 > {1075000, 975000, 975000}
5 > {1050000, 950000, 950000}
6 > {1025000, 950000, 925000}
7 > {1000000, 925000, 900000}
* Set L2 bus (memory) speed from 133 > 160 MHz
- Default MHz now:
L0 = 400
L1 = 267
L2 = 160 MHz / 1000 mV (stock = 133 MHz / 950 mV)
* Adaptive vfs_cache_pressure on suspend / resume
Hard coded values :
- Set @ 10 = save battery on device suspend
- Set @ 60 = better smoothness on device resume
Low vfs_cache pressure values save battery while idle, while a low value also causes stutter with longer up times.
* Governors
pegasusq = SkyHigh default (siyah kernel version & "freq for responsiveness" tweaked to 500 MHz by me)
HYPER
scary
wheatley
abyssplug
lulzactiveq (siyah kernel version & tweaked by me)
lazy
hotplug
ondemand
performance
ZZMoove 0.7d
* IO schedulers
SIO = SkyHigh default
ROW
VR
NOOP
Deadline
CFQ
* SOUND CONTROL via ExTweaks app
* Thunderbolt scheduler IO Tweaks [pikachu01]
* Implemented kernel to report USB trickle charge (previously just reports discharging).
- Those devices without modified SystemUI.apk will now show battery charging animation whilst on USB power source
* Force USB charging source to be detected as AC
- faster USB charge using same circuitry
- limited by:
1. charging source max output
2. kernel - up to max 1500 mA (same is actual AC)
* Auto set init.d scripts to 777 – no need to manually set script permissions, just drop in & reboot
* Reduced GUI lag
- Frandom
- fstrim lagfix - NOT ENABLED BY DEFAULT
- Disabled gentle fair sleepers
- RAM management OOM adj & minfree values from V6SuperCharger
* Improved touch-screen sensitivity (on both battery and charge)
* Mount partitions NOATIME and NODIRATIME by default
* R/W and auto-mounting of exFAT USB-OTG & external sdcard using official Samsung Open Source modules v1.2.5
* modded ROM /system/etc/vold.fstab to permit exFAT mounting
* NTFS R/W OTG file system support (require app to mount)
* UDF/ISO file system support - BluRay (require app to mount) - not tested !
* Network filesystem support
In-built CIFS
In-built NFS (not tested)
* TCP algorithms
- cubic = default
- reno
- westwood+ (some users of other devices have reported faster network throughput speeds)
* In-built zRAM support
* LZ4 compression implemented & enabled for zRAM [psndna88 & Yank555.lu]
* Support paging of anonymous memory (Swap)
* General optimized for size
* Kernel compression = xz
* Support for iPad, iPhone, iPhone_3G/S, iPhone_4/4S, iPhone_5 (not tested as I don't own "rotten fruit" )
* UV motor -100 mV (3.1V → 3.0V)
* UV LED -100 mV (3.2V → 3.1V)
* fbearlysuspend control - allow CRT-off animation in SUPPORTED ROMs)
* Thermal throttle control (default on) – be careful here, do you want to melt your CPU?
* Dynamic read-ahead implemented and set at 1024 KB (variable)
* Int/External sdcard read ahead cache = variable KB
* Internal & external sdcard IO schedulers = SIO
* Dynamic FSync control v1.2 implemented and enabled
* Dynamic management of dirty page writebacks
* Android Logger Control disabled
* Linux printk Control disabled
* KSM support
* Custom bootanimation support
* Custom boot sound support
* Support for XPAD gamepad & rumblepad controller
* Reduce Android logger RAM usage
* Disabled kernel debugging to reduce zImage size
* Disabled some module logging
* Disable mali tracking debug
* Disable zRAM debug
* Disable modem in config (not needed for this device)
* Triangle Away app support
* vm swappiness = 20 (performance)
* Free pagecache. dentries and inodes will be managed by /proc/sys/vm/vfs_cache_pressure
echo "1" > /proc/sys/vm/drop_caches
* System property accessory tweak values from V6SuperCharger
dalvik.vm.heapgrowthlimit 130m
dalvik.vm.heapsize 130m
persist.sys.purgeable_assets 1
windowsmgr.max_events_per_sec 90 (200 set as SkyHigh default)
* Virtual memory & kernel tweak
# values from V6SuperCharger & Kick Ass Kernelizer [[email protected]]
echo "10" > /proc/sys/fs/lease-break-time
echo "0" > /proc/sys/kernel/panic
echo "0" > /proc/sys/kernel/panic_on_oops
echo "0" > /proc/sys/vm/block_dump
echo "60" > /proc/sys/vm/dirty_background_ratio
echo "95" > /proc/sys/vm/dirty_ratio
echo "0" > /proc/sys/vm/laptop_mode
echo "15360" > /proc/sys/vm/min_free_kbytes
echo "4" > /proc/sys/vm/min_free_order_shift
echo "0" > /proc/sys/vm/oom_dump_tasks
echo "0" > /proc/sys/vm/oom_kill_allocating_task
echo "1" > /proc/sys/vm/overcommit_memory
echo "0" > /proc/sys/vm/panic_on_oom
#echo "20" > /proc/sys/vm/swappiness ########### Already implemented
#echo "10" > /proc/sys/vm/vfs_cache_pressure ########### Implemented adaptive vfs_cache_pressure on suspend (10) / resume (60)
* Misc tweaks for battery life
# values from V6SuperCharger & Kick Ass Kernelizer [[email protected]]
echo "65536" > /proc/sys/kernel/msgmax
echo "2048" > /proc/sys/kernel/msgmni
echo "500 512000 64 2048" > /proc/sys/kernel/sem
echo "2097152" > /proc/sys/kernel/shmall
echo "268435456" > /proc/sys/kernel/shmmax
echo "4096" > /proc/sys/kernel/shmmni
#
echo "524288" > /proc/sys/fs/file-max
echo "32000" > /proc/sys/fs/inotify/max_queued_events
echo "256" > /proc/sys/fs/inotify/max_user_instances
echo "10240" > /proc/sys/fs/inotify/max_user_watches
echo "0" > /proc/sys/kernel/sched_child_runs_first
echo "524288" > /proc/sys/kernel/threads-max
* TCP Speed & Security
# values from V6SuperCharger & Kick Ass Kernelizer [[email protected]]
# 3G TurboCharger Enhancement
#
# Google's public DNS settings
#
/system/bin/setprop net.dns1 8.8.8.8 ########### Not sticking
/system/bin/setprop net.dns2 8.8.4.4
#
# ReadMin, ReadInitial, ReadMax, WriteMin, WriteInitial, WriteMax
/system/bin/setprop net.tcp.buffersize.default 6144,87380,110208,6144,16384,110208
/system/bin/setprop net.tcp.buffersize.wifi 262144,524288,1048576,262144,524288,1048576
/system/bin/setprop net.tcp.buffersize.lte 262144,524288,3145728,262144,524288,3145728
/system/bin/setprop net.tcp.buffersize.hsdpa 6144,262144,1048576,6144,262144,1048576
/system/bin/setprop net.tcp.buffersize.evdo_b 6144,262144,1048576,6144,262144,1048576
/system/bin/setprop net.tcp.buffersize.umts 6144,87380,110208,6144,16384,110208
/system/bin/setprop net.tcp.buffersize.hspa 6144,87380,262144,6144,16384,262144
/system/bin/setprop net.tcp.buffersize.gprs 6144,8760,11680,6144,8760,11680
/system/bin/setprop net.tcp.buffersize.edge 6144,26280,35040,6144,16384,35040
#
# Queue size modifications
echo "20480" > /proc/sys/net/core/optmem_max
#echo "262144" > /proc/sys/net/core/rmem_default
echo "1048576" > /proc/sys/net/core/rmem_max
#echo "262144" > /proc/sys/net/core/wmem_default
echo "1048576" > /proc/sys/net/core/wmem_max
echo "50" > /proc/sys/net/unix/max_dgram_qlen
#
# Be sure that autotuning is in effect
echo "1" > /proc/sys/net/ipv4/tcp_moderate_rcvbuf
#
echo "0" > /proc/sys/net/ipv4/ip_no_pmtu_disc
echo "1" > /proc/sys/net/ipv4/route/flush
echo "0" > /proc/sys/net/ipv4/tcp_ecn
echo "1" > /proc/sys/net/ipv4/tcp_fack
echo "1" > /proc/sys/net/ipv4/tcp_rfc1337
#echo "6144 87380 1048576" > /proc/sys/net/ipv4/tcp_rmem ########### Not sticking
echo "1" > /proc/sys/net/ipv4/tcp_sack
echo "0" > /proc/sys/net/ipv4/tcp_timestamps
echo "1" > /proc/sys/net/ipv4/tcp_window_scaling
#echo "6144 87380 1048576" > /proc/sys/net/ipv4/tcp_wmem ########### Not sticking
echo "6144" > /proc/sys/net/ipv4/udp_rmem_min
echo "6144" > /proc/sys/net/ipv4/udp_wmem_min
#
# Re-use sockets in time-wait state
echo "1" > /proc/sys/net/ipv4/tcp_tw_recycle
echo "1" > /proc/sys/net/ipv4/tcp_tw_reuse
#
# Hardening the TCP/IP stack to SYN attacks
echo "1024" > /proc/sys/net/ipv4/tcp_max_syn_backlog
echo "2" > /proc/sys/net/ipv4/tcp_syn_retries
echo "2" > /proc/sys/net/ipv4/tcp_synack_retries
#
# Bump up tw_buckets in case we get DoS'd
echo "16384" > /proc/sys/net/ipv4/tcp_max_tw_buckets
#
# Ignore pings
echo "1" > /proc/sys/net/ipv4/icmp_echo_ignore_all
#
# Don't reply to broadcasts (prevents joining a smurf attack)
echo "1" > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
#
# Enable bad error message protection (should be enabled by default)
echo "1" > /proc/sys/net/ipv4/icmp_ignore_bogus_error_responses
#
# Don't cache connection metrics from previous connection
echo "1" > /proc/sys/net/ipv4/tcp_no_metrics_save
#
echo "15" > /proc/sys/net/ipv4/tcp_fin_timeout
echo "30" > /proc/sys/net/ipv4/tcp_keepalive_intvl
echo "5" > /proc/sys/net/ipv4/tcp_keepalive_probes
echo "1800" > /proc/sys/net/ipv4/tcp_keepalive_time
#
# Don't pass traffic between networks or act as a router
# Disable IP Packet forwarding (should be disabled already)
echo "0" > /proc/sys/net/ipv4/ip_forward
#
echo "0" > /proc/sys/net/ipv4/conf/all/send_redirects
echo "0" > /proc/sys/net/ipv4/conf/default/send_redirects
#
# Enable spoofing protection (turn on reverse packet filtering)
echo "1" > /proc/sys/net/ipv4/conf/all/rp_filter
echo "1" > /proc/sys/net/ipv4/conf/default/rp_filter
#
# Don't accept source routing
echo "0" > /proc/sys/net/ipv4/conf/all/accept_source_route
echo "0" > /proc/sys/net/ipv4/conf/default/accept_source_route
#
# Don't accept redirects
echo "0" > /proc/sys/net/ipv4/conf/all/accept_redirects
echo "0" > /proc/sys/net/ipv4/conf/all/secure_redirects
echo "0" > /proc/sys/net/ipv4/conf/default/accept_redirects
echo "0" > /proc/sys/net/ipv4/conf/default/secure_redirects
* Power saving tweaks
pm.sleep_mode 1
ro.ril.disable.power.collapse 1
wifi.supplicant_scan_interval 180
CREDITS
* My family !!
* Samsung
* XDA
* wanam repo, ezykernel ICS diff, Ryuinferno, CM, boeffla, GM, redpill more to add yet
* Chainfire for root
* GM - siyah kernel
* AndreiLux
* dorimanx
* Christopher83
* zeppelinrox - V6SuperCharger - KAK - 3G TurboCharger values and Fix Emissions script
* idcrisis for permission to implement CrossBreeder entropy into kernel - no success as yet...
* pikachu01 FOR SOME tHUNDERBOLT TWEAKS
* Suxsem for fstrim
* XDA devs that I cherry pick code, values & ideas from. The list is never ending...
* edan1979 for excellent feedback & also nutley for volunteering to test
GPL COMPLIANT - SOURCE: >> GitHub
.

Download & change-log
DOWNLOAD & CHANGE-LOG
** DISCLAIMER : FLASH AT YOUR OWN RISK **
WARNING :
* Under-volting can cause instability
* Over-clocking can cause freeze/reboot, heat & damage to CPU
* Any customizations may void warranty
P6810 Wi-Fi JB 4.1.2 DXMD3 ONLY
INSTALLATION
** DO NOT USE ANY 3RD PARTY TWEAKS OR “PERFORMANCE” TYPE APPS & REMOVE ALL ROM / KERNEL SCRIPTS FROM /system/etc/init.d FOLDER **
1. NANDROID (just in case)
2. Flash SkyHigh P6810 JB 4.1.2 ROM or bodivas P6810 JB 4.1.2 ROM
3. Remove any previous CPU control settings from starting at boot, remove any 3rd party tweaks etc
4. Flash in custom recovery (CWM or TWRP) to auto wipe previous kernel profile remnants ie. crontab & /data/.siyah folder
5. If requested by Recovery to install SU, DO NOT. Instead - Let the kernel do it on boot
P6810 Wi-Fi SkyHigh Kernel : Latest release is v3.0.0 FINAL Edition
CWM.zip v3.0.0 FINAL http://d-h.st/oVe
Archive : Working CWM Official Released Legacy Versions (UNSUPPORTED)
v2.6.0b
v2.5.0b
v2.4.0b
v2.3.0
v2.1.0
v2.0.0
v1.9.0
v1.8.0
v1.7.0
v1.6.0
v1.5.0
v1.0.0
-------------------------------------------------------------------
Stock repack kernel (thanks bodivas) :
CWM.zip DXMD3
ODIN.tar DXMD3
++ PLEASE DO NOT REDISTRIBUTE - LINK HERE INSTEAD ++
BUGS
* Check if it is actually a stock firmware bug first using stock kernel -BEFORE- posting in this thread or elsewhere
1. Random screen tint reported on both stock & SkyHigh kernels using CPU control app (Read Post #3)
.
.

FAQ & HELP
FAQ & HELP
MY RECOMMENDATIONS
* Governor = pegasusq, lulzactiveq, or ZZMoove
* IMO = Performance → → Battery
1. on-demand
2. pegasusq (snappy, but easier on battery than on-demand)
3. lulzactiveq
4. ZZMoove
* Scheduler = SIO
* CPU freq = 200-1400/1600 MHz
* CPU vdd levels = SkyHigh "defaults"
* Enable zRAM for better mulitasking
* CPU Control app = ExTWeaks
Don't forget to use only one Control app at a time. They will conflict !
ISSUES?
1 Remove any kernel related init.d tweaks, 3rd party performance type apps etc
2 Wipe your CPU control app(s) data (menu > settings > applications > "your control app(s)" > clear data/cache)
3 Use only ONE CPU control app ! USE EXTweaks
4 Open SuperSU app > settings > full unroot (or unroot from with EXTweaks options)
5 Boot into recovery and wipe cache & dalvik cache
6 Re-flash SkyHigh Kernel
7 If requested by recovery - DO NOT install root (let the kernel do it)
9 Reboot
8 If still issue such as bootloop etc, try using MPLL mode for GPU, and or increase GPU voltages +50 mV
9 Try a kernel "legacy" versions
10 Back to stock for you
RANDOM SCREEN TINT AFTER CHANGING GOVERNOR
* Turn screen OFF-ON
* Use only SkyHigh defaults values
* Don't use a CPU control app to change kernel settings - Use init.d script instead
* OR IF IT BOTHERS YOU,...... DON'T USE THE KERNEL
zRAM
Info here : (INFO)What is zram and how does it work???
LOGS
* You can find various ExTweaks logs in the /data folder:
/data/.siyah
/data/extSdCard_fix.log
/data/fsrepair.log
/data/fstrim_lagfix.log
/data/Ran_FixEmissions.log
/data/sqlite.log
/data/zipalign.db
/data/zipalign.log
/data/crontab
PREVENT/REDUCE SCREEN-OFF FLICKER FOR CRT-OFF ANIMATION ENABLED ROMs
* Set fbearlysuspend msleep between 100 and 500 ms
* Set to 0 if you haven't any CRT-off animation mod
DYNAMIC MANAGEMENT OF DIRTY PAGE WRITEBACKS
* [Christopher83]
This feature allows to have two different intervals for dirty page
writebacks and to dynamically manage them when the system has been
resumed (it's active) or when has been suspended.
Three new procfs parameters are exposed inside /proc/sys/vm path:
- dynamic_dirty_writeback is the activation status of this feature,
set 1 to enable it, set 0 to disable it and use the standard behaviour
- dirty_writeback_active_centisecs is the interval for the dirty page
writebacks when the system is active (screen on)
- dirty_writeback_suspend_centisecs is the interval for the dirty page
writebacks when the system is suspended (screen off)
This feature is in part inspired on Francisco Franco's patch:
https://github.com/franciscofranco/mako/commit/34d79548cf16b69c7d0154836018e7f258a22947
Click to expand...
Click to collapse
WHAT IS A CUSTOM KERNEL
* First of all, watch this : Android Basics 101: Understanding Kernels – XDA Developer TV
* Is usually' modified and complied from source.
* My very first successfully compiled kernel just included the "SkyHigh" name. I suppose you could call that a modified "stock" kernel. On the other hand, you could also argue that any firmware modified from either official or built from sources could be called "custom".
HAVE THE STOCK KERNELS ATTACHED BEEN MODIFIED
* If you are referring to the stock MD3 kernels in Post #2, NO
* I just extracted the zImage from official firmware and repackaged for flashing via custom recovery or Odin. There are no changes made to the zImage. I have no plans to modify these.
ENTROPY
* MAX pool sixe 4096
* It's not instant, just use your device and it will grow.
* No need for entropy generator apps that consume battery (use extra CPU cycles)
WHAT ARE GOVERNORS / SCHEDULERS ETC
* Excellent source of info by droidphile :
[REF][TWEAKS] Kernel Governors, Modules, I/O Schedulers, CPU Tweaks, AIO App Configs
FSTRIM LAGFIX
* fstrim is more of a maintenance binary. Android 4.2.2 and below are more prone to lag over time and prevalent as your internal storage is used up.
* Trims system, preload, data & cache partitions
* fstrim binary set to run after boot
* A manual reboot once a week is suggested. Those users who have ample internal storage and or recently formatted their partitions via ROM flash or Nandroid restore may see little difference for now.
* More info : Google yourself or Nexus Storage Performance Over Time & TRIM 20130829
CUSTOM BOOT ANIMATION SUPPORT
1. copy bootanimation.zip to /system/media/ folder (mount folder r/w to paste)
2. ensure set permissions rw-rw-rw-
3. reboot
NOTE :
* For any further help or instructions for bootanimation, please open your own forum Q&A thread or post in a relevant bootanimation thread. There are many already built and can be found by searching.
* The size we need for our tab is 800x1280 or 1280x800 (depending on portrait or landscape)
CUSTOM BOOT SOUND SUPPORT
* Place custom boot sound PowerOn.ogg in /system/media
* To mute, create an empty file named mute in /system/media
* To unmute, create an empty file named unmute in /system/media
* To restore original boot sound, create an empty file named ori_sound in /system/media
* Reboot device after each process
NOTE :
* when creating a custom boot sound, make sure you use a capital "P" and "O" in PowerOn.ogg
* I will not provide a tutorial for creating boot sounds, you can Google yourself
BENCH-MARKING
Freeze or Re-Boot
1 Try increase CPU 1600 Mhz voltage by +25 mV or +50 mV. I would not recommend any more than that !
2 Lower CPU OC back to stock max 1400 MHz setting
3 To find out which frequency cause the freeze :
a) If you have UV the CPU and the device freeze, obviously you need to increase the voltage to a particular frequency step(s)
b) Do a stress test with SetCPU (or other app) and lock your max frequency for each step (DO NOT SET ON BOOT WHILST TESTING)
4 Try a different governor
5 Use a different benchmark app/tool
AnTuTu Crashes?
* Try another benchmark app !
Low Bench-Marking Scores
* Consectutive tests as well as OC may heat the CPU high enough where thermal limiting occurs. Well here you go........... I observed my CPU regularly drop to 800 MHz after hitting a thermal limit during testing.
Here's the proof !
https://github.com/UpInTheAir/P6800_JB_SkyHigh_Kernel/blob/master/arch/arm/mach-exynos/mach-px.c
Code:
#ifdef CONFIG_EXYNOS4_SETUP_THERMAL
/* below temperature base on the celcius degree */
struct s5p_platform_tmu px_tmu_data __initdata = {
.ts = {
[COLOR="Red"].stop_1st_throttle = 61,
.start_1st_throttle = 64,[/COLOR]
.stop_2nd_throttle = 87,
.start_2nd_throttle = 103,
.start_tripping = 110,
.start_emergency = 120,
.stop_mem_throttle = 80,
.start_mem_throttle = 85,
},
.cpufreq = {
.limit_1st_throttle = [COLOR="Red"]800000[/COLOR], /* 800MHz in KHz order */
.limit_2nd_throttle = 200000, /* 200MHz in KHz order */
* With some undervolt and governor tuning, little OC impact will be felt on battery. Not everyone fixes their CPU to max with performance governor so, providing your hardware can handle it, some OC should be OK for everyday use as the CPU only briefly scales to max freq with the 'right' governor.
* As you can see, this could be easily changed to allow (cheat) in benchmarks. This won't make much difference to everyday use, but IMO shouldn't be touched. My silicon may not handle it
RESET CUSTOM FLASH COUNTER
*There is a Samsung Galaxy Tab 7.7 flash counter introduced for P6800 JB 4.1.2 DXMD3, so any modified ROM, kernel or recovery flashed via PC Odin will increase the counter.
1. Have installed my P6810/P6800 SkyHigh kernel for JB 4.1.2 (patched for triangle away compatibility)
2. Install triangle away app v3.26
3. Reset counter
4. Reboot as requested
5. To check > open app again, or, power off and enter download mode
* Your custom ROM, kernel, recovery & root remain intact
Anything else, IF I find the time
.

A few things to do yet to bring it on par with the P6800 SkyHigh kernel.
ie. exFAT, init.d (think not working), custom bootanimation & sound support, some more tweaks etc
Edit: forgot to mention, frandom is only 1/2 way there. Removed from initramfs SkyHigh install script as well. Will look into it in good time.
Please be patient, I have other things to do

Thanks so much! Will flash asap.
Sent from my E330 using xda app-developers app

Downloading, thanks to make our tablet live.

Many thanks UpInTheAir..
You're the only reason my P6810 is not for sale.:highfive:

Thank you very much

Just for a change, been having a play around cooking a test ROM and mods. Been a while since I've done that, but it's like riding a bike, little shaky a first, but never forget. I have no plans for the ROM.
Will take a look at this kernel again tomorrow. Expect an update in the next day or so.
Sent from my GT-I9500 using XDA Premium 4 mobile app

Update on development.
Update on development.
Looks like the next update could be a little longer than hoped.
Have managed to get just about everything working same as current P6800 kernel (plus implementing fstrim lagfix on boot),.......
EXCEPT USB-OTG keeps constantly mounting/unmounting. Have not found the exact cause yet, and is something to do with the initramfs SkyHigh.sh install script or maybe the init.rc entry to initiate it.
I have compiled 20-30 kernels today, time for a break.......

v1.5.0 update
>> v1.5.0 UPDATE <<
** FOR P6810 Wi-Fi device running bodivas JB 4.1.2 DXMD3 ROM Port ONLY !! **
++ SOMEONE PLEASE CONFIRM USB-OTG WORKS - I THINK MY ADAPTER IS BROKEN ++
1. Read warnings in Post #3 before flashing. I am not responsible, you are
2. Clear your CPU Control app defaults first. device settings/applications/all/"your control app"/clear data
3. You will need a CPU control app to adjust the CPU freq from the safe startup values (OC / UV / UC)
4. Recommend 200-1400 -or- 200-1600 MHz
5. Recommended governors etc = Read Post #3
CHANGE-LOG v1.0.0 -> v1.5.0
* R/W and auto-mounting of exFAT USB-OTG & external sdcard
* Modded ROM /system/etc/vold.fstab to permit exFAT mounting
* IO scheduler set the same for internal & external sdcards via initramfs : default = SIO
* Updated to SuperSU 1.65 & binary v1.61 (installs only if you don't have any)
* fstrim lagfix on boot (trims system, data & cache) - slows down reboot, but who cares, aren't we more concerned with using device?
* Frandom now working
* Fixed all initramfs mods & tweaks
* init.d support & set to 777
* Thunderbolt IO scheduler tweaks
* Power saving & virtual memory tweaks
* Increased windowsmgr.max_events_per_sec from 90 to 200
* External sdcard read ahead cache set to 1664 KB
* Custom boot animation support
* Custom boot sound support
* Removed some module debugging
* Force close freeze fix
TO-DO
* Lots
INSTALLATION
1. NANDROID (just in case)
2. Flash bodivas P6810 JB 4.1.2 ROM Port
3. Remove any previous CPU control settings from starting at boot
4. Flash in :
a) CWM.zip in custom recovery (CWM or TWRP)
-or-
b) ODIN.tar in Odin [PDA] / Mobile Odin4. THIS WILL PROBABLY "BREAK" currently installed V6SuperCharger scripts ! (test kernel first, and then re-install scripts)
5. Reboot again to fstrim your partitions
SUGGESTED CPU CONTROL APP : Trickster Mod app
Don't forget to use only one Control app at a time. They will conflict !
CURRENT BUGS :
* Random screen tint (Read Post #3)
* The CPU freq may exceed the max cap setting on wakeup. ie max CPU freq set @ 1400 MHz -> turn on screen -> 1600 Mhz very very briefly -> then back down
Can't fix the CPU Level 0 bug. Refer to my post HERE. It is a FIRMWARE bug present in both stock and SkyHigh kernels
ISSUES?
* READ POST #2 & #3 FIRST
CHEERS
UITA
.

v1.6.0 update
>> v1.6.0 UPDATE <<
** FOR P6810 Wi-Fi device running bodivas JB 4.1.2 DXMD3 ROM Port ONLY !! **
1. Read warnings in Post #3 before flashing. I am not responsible, you are
2. Clear your CPU Control app defaults first. device settings/applications/all/"your control app"/clear data
3. You will need a CPU control app to adjust the CPU freq from the safe startup values (OC / UV / UC)
4. Recommend 200-1400 -or- 200-1600 MHz
5. Recommended governors etc = Read Post #3
CHANGE-LOG v1.5.0 -> v1.6.0
* Fixed my omission to make kernel insecure
* Disable modem in config file (our device is a WiFi model)
TO-DO
* Lots
INSTALLATION
1. NANDROID (just in case)
2. Flash bodivas P6810 JB 4.1.2 ROM Port
3. Remove any previous CPU control settings from starting at boot
4. Flash in :
a) CWM.zip in custom recovery (CWM or TWRP)
-or-
b) ODIN.tar in Odin [PDA] / Mobile Odin4. THIS WILL PROBABLY "BREAK" currently installed V6SuperCharger scripts ! (test kernel first, and then re-install scripts)
5. Reboot again to fstrim your partitions
SUGGESTED CPU CONTROL APP : Trickster Mod app
Don't forget to use only one Control app at a time. They will conflict !
CURRENT BUGS :
* Random screen tint (Read Post #3)
* The CPU freq may exceed the max cap setting on wakeup. ie max CPU freq set @ 1400 MHz -> turn on screen -> 1600 Mhz very very briefly -> then back down
Can't fix the CPU Level 0 bug. Refer to my post HERE. It is a FIRMWARE bug present in both stock and SkyHigh kernels
ISSUES?
* READ POST #2 & #3 FIRST
CHEERS
UITA
.

No problems with usb-otg in 1.6.
Thanks UpInTheAir.
---------- Post added at 10:53 PM ---------- Previous post was at 10:52 PM ----------
No problems with usb-otg in 1.6.
Thanks UpInTheAir.

el_campi said:
No problems with usb-otg in 1.6.
Thanks UpInTheAir.
---------- Post added at 10:53 PM ---------- Previous post was at 10:52 PM ----------
No problems with usb-otg in 1.6.
Thanks UpInTheAir.
Click to expand...
Click to collapse
Thanks for confirming.
I wasted a lot of time "chasing my tail", so frustrating, but a relief it's was my adapter.
Looks like I need to eBay

UpInTheAir said:
>> v1.6.0 UPDATE <<
** FOR P6810 Wi-Fi device running bodivas JB 4.1.2 DXMD3 ROM Port ONLY !! **
1. Read warnings in Post #3 before flashing. I am not responsible, you are
2. Clear your CPU Control app defaults first. device settings/applications/all/"your control app"/clear data
3. You will need a CPU control app to adjust the CPU freq from the safe startup values (OC / UV / UC)
4. Recommend 200-1400 -or- 200-1600 MHz
5. Recommended governors etc = Read Post #3
CHANGE-LOG v1.5.0 -> v1.6.0
* Fixed my omission to make kernel insecure
* Disable modem in config file (our device is a WiFi model)
TO-DO
* Lots
INSTALLATION
1. NANDROID (just in case)
2. Flash bodivas P6810 JB 4.1.2 ROM Port
3. Remove any previous CPU control settings from starting at boot
4. Flash in :
a) CWM.zip in custom recovery (CWM or TWRP)
-or-
b) ODIN.tar in Odin [PDA] / Mobile Odin4. THIS WILL PROBABLY "BREAK" currently installed V6SuperCharger scripts ! (test kernel first, and then re-install scripts)
5. Reboot again to fstrim your partitions
SUGGESTED CPU CONTROL APP : Trickster Mod app
Don't forget to use only one Control app at a time. They will conflict !
CURRENT BUGS :
* Random screen tint (Read Post #3)
* The CPU freq may exceed the max cap setting on wakeup. ie max CPU freq set @ 1400 MHz -> turn on screen -> 1600 Mhz very very briefly -> then back down
Can't fix the CPU Level 0 bug. Refer to my post HERE. It is a FIRMWARE bug present in both stock and SkyHigh kernels
ISSUES?
* READ POST #2 & #3 FIRST
CHEERS
UITA
.
Click to expand...
Click to collapse
Guys, you are marvelous !
From the Galaxy

v1.7.0 update
>> v1.7.0 UPDATE <<
** FOR P6810 Wi-Fi device running JB 4.1.2 DXMD3 ROM !! **
1. Read warnings in Post #3 before flashing. I am not responsible, you are
2. Clear your CPU Control app defaults first. device settings/applications/all/"your control app"/clear data
3. You will need a CPU control app to adjust the CPU freq from the safe startup values (OC / UV / UC)
4. Recommend 200-1400 -or- 200-1600 MHz
5. Recommended governors etc = Read Post #3
** DELETE ANY INIT.D 90lagfix SCRIPT BEFORE FLASH **
CHANGE-LOG v1.6.0 -> v1.7.0
* Reverted in-built entropy generator for now
* Added sleep 60 command to lagfix script. Minimal impact on boot time now
* fstrim lagfix will now trim preload partition (there is no app that can do this, only this tweak !!)
* lagfix tweak can now be disabled and re-enabled. Please refer to Post #3
INSTALLATION
1. NANDROID (just in case)
2. Flash SkyHigh P6810 JB 4.1.2 ROM or bodivas P6810 JB 4.1.2 ROM
3. Remove any previous CPU control settings from starting at boot
4. Flash in :
a) CWM.zip in custom recovery (CWM or TWRP)
-or-
b) ODIN.tar in Odin [PDA] / Mobile Odin4. THIS WILL PROBABLY "BREAK" currently installed V6SuperCharger scripts ! (test kernel first, and then re-install scripts)
5. Reboot again to fstrim your partitions
SUGGESTED CPU CONTROL APP : Trickster Mod app
Don't forget to use only one Control app at a time. They will conflict !
CURRENT BUGS :
* Random screen tint (Read Post #3)
* The CPU freq may exceed the max cap setting on wakeup. ie max CPU freq set @ 1400 MHz -> turn on screen -> 1600 Mhz very very briefly -> then back down
Can't fix the CPU Level 0 bug. Refer to my post HERE. It is a FIRMWARE bug present in both stock and SkyHigh kernels
ISSUES?
* READ POST #2 & #3 FIRST
CHEERS
UITA
.

v1.8.0 update
>> v1.8.0 UPDATE <<
** FOR P6810 Wi-Fi device running JB 4.1.2 DXMD3 ROM !! **
1. Read warnings in Post #3 before flashing. I am not responsible, you are
2. Clear your CPU Control app defaults first. device settings/applications/all/"your control app"/clear data
3. You will need a CPU control app to adjust the CPU freq from the safe startup values (OC / UV / UC)
4. Recommend 200-1400 -or- 200-1600 MHz
5. Recommended governors etc = Read Post #3
** REMOVE ALL PREVIOUS SkyHigh ROM SCRIPTS FROM /system/etc/init.d FOLDER (EXCEPT: sqlite & ziplaign are OK) **
CHANGE-LOG v1.7.0 -> v1.8.0
** Source changes as per gitHub
* fix for the CPU scaling above max set frequency (thanks Yank555.lu)
* 18-step CPU : add 1700 & 1800 MHz CPU OC options (for battery & stability, not recommended above 1600 MHz)
* zRAM (still off by default)
use two CPU's (zram0 & zram1)
zRAM tweak* decrease IO latency
* mount partitions NOATIME and NODIRATIME by default
* add sysfs interface to enable / disable thermal throttle (default on) – be careful here, do you want to melt your CPU?
* tweak default xz compression ratio for slightly faster boot speed
* +25mV for all CPU freq 100-1400 MHz - stock levels now (you can UV yourself)
* disable gentle fair sleepers - improve UI responsiveness
* disable linux printk & add sysfs interface to enable / disable
* enable Westwood+ TCP algorithm (default still cubic) – some testing by other users show an increase a network throughput – test for yourself and share results!
** initramfs changes
* Virtual memory & kernel tweak values from V6SuperCharger - [email protected]
vm.oom_kill_allocating_task=0
vm.panic_on_oom=0
vm.vfs_cache_pressure=10
vm.overcommit_memory=1
kernel.panic_on_oops=0
kernel.panic=0
* RAM Management values from V6SuperCharger - [email protected]
tweak LMK OOM adj & minfree values (512HP Super UL)
much reduced lag as current apps aren't starved of memory when android LMK kills off background apps
slightly less mutli-tasking
SkyhIgh default :
adj = 0,3,6,10,12,15
minfree = 2048,3584,19200,23040,24320,32000 (8-14-75-90-95-125 MB)
* init.d support moved to end of script
* fstrim lagfix - fixed having to reboot twice after enable ".lagfix_on". Just create the file in internal sdcard and reboot ONCE
* auto set init.d scripts to 777 – no need to manually set script permissions, just drop in & reboot
INSTALLATION
** REMOVE ALL PREVIOUS SkyHigh ROM SCRIPTS FROM /system/etc/init.d FOLDER (EXCEPT: sqlite & ziplaign are OK) **
1. NANDROID (just in case)
2. Flash SkyHigh P6810 JB 4.1.2 ROM or bodivas P6810 JB 4.1.2 ROM
3. Remove any previous CPU control settings from starting at boot
4. Flash in :
a) CWM.zip in custom recovery (CWM or TWRP)
-or-
b) ODIN.tar in Odin [PDA] / Mobile Odin4. THIS WILL PROBABLY "BREAK" currently installed V6SuperCharger scripts ! (test kernel first, and then re-install scripts)
5. enable fstrim & reboot twice to install & fstrim your partitions
SUGGESTED CPU CONTROL APP : Trickster Mod app
Don't forget to use only one Control app at a time. They will conflict !
CURRENT BUGS :
* Random screen tint (Read Post #3)
ISSUES?
* READ POST #1, #2 & #3 FIRST
CHEERS
UITA
.

V1.9.0 update
>> v1.9.0 UPDATE <<
** FOR P6810 Wi-Fi device running JB 4.1.2 DXMD3 ROM !! **
1. Read warnings in Post #3 before flashing. I am not responsible, you are
2. Clear your CPU Control app defaults first. device settings/applications/all/"your control app"/clear data
3. You will need a CPU control app to adjust the CPU freq from the safe startup values (OC / UV / UC)
4. Recommend 200-1400 -or- 200-1600 MHz
5. Recommended governors etc = Read Post #3
** REMOVE ALL PREVIOUS SkyHigh ROM SCRIPTS FROM /system/etc/init.d FOLDER (EXCEPT: sqlite & ziplaign are OK) **
CHANGE-LOG v1.8.0 -> v1.9.0
** Source changes as per gitHub
* 4-step GPU Control interface (sysfs) via init.d script (EXAMPLES IN POST #3)
clock
voltage
step thresholds
stay counts
* Change to lzo compression (slightly faster boot at expense of zImage size)
* xz compressor tweaked (not currently in use)
* SLUB - small performance tweak
* Stop compiling unuded 4x12 objects on 4210
* Corrected OP
160 MHz = 900mV (-100 mV > stock 1000 mV)
267 MHz = 950 mv (-150 mV > stock 1100 mV)
Click to expand...
Click to collapse
INSTALLATION
** REMOVE ALL PREVIOUS SkyHigh ROM SCRIPTS FROM /system/etc/init.d FOLDER (EXCEPT: sqlite & ziplaign are OK) **
1. NANDROID (just in case)
2. Flash SkyHigh P6810 JB 4.1.2 ROM or bodivas P6810 JB 4.1.2 ROM
3. Remove any previous CPU control settings from starting at boot
4. Flash in :
a) CWM.zip in custom recovery (CWM or TWRP)
-or-
b) ODIN.tar in Odin [PDA] / Mobile Odin4. THIS WILL PROBABLY "BREAK" currently installed V6SuperCharger scripts ! (test kernel first, and then re-install scripts)
SUGGESTED CPU CONTROL APP : Trickster Mod app
Don't forget to use only one Control app at a time. They will conflict !
CURRENT BUGS :
* Random screen tint (Read Post #3)
ISSUES?
* READ POST #1, #2 & #3 FIRST
CHEERS
UITA
.

v2.0.0 update
>> v2.0.0 UPDATE <<
** FOR P6810 Wi-Fi device running JB 4.1.2 DXMD3 ROM !! **
1. Read warnings in Post #3 before flashing. I am not responsible, you are
2. Clear your CPU Control app defaults first. device settings/applications/all/"your control app"/clear data
3. You will need a CPU control app to adjust the CPU freq from the safe startup values (OC / UV / UC)
4. Recommend 200-1400 -or- 200-1600 MHz
5. Recommended governors etc = Read Post #3
** REMOVE ALL PREVIOUS SkyHigh ROM SCRIPTS FROM /system/etc/init.d FOLDER (EXCEPT: sqlite & ziplaign are OK) **
CHANGE-LOG v1.9.0 > v2.0.0
** Source changes as per gitHub
* Increased from 4 to 5-step GPU : Default = 108-160-267-330-400 MHz
Min freq = 54 MHz (lower than 108 MHz may cause lag, freeze or SOD)
Max freq = 520 MHz
Valid freq (useable) = 54-66-108-160-160-200-267-300-330-400-440-520 MHz
Voltage = 800 > 1200 mV (+/- 50 mV increments)
Stock = 2-step GPU (160-267 MHz)
* GPU UV / UC / OC
108 MHz = 900mV
160 MHz = 900mV (-100 mV > stock 1000 mV)
267 MHz = 950 mv (-150 mV > stock 1100 mV)
330 MHz = 1000 mV
400 MHz = 1050 mV
* 5-step GPU Control interface (sysfs) via init.d script Control interface (EXAMPLES IN POST #3)
clock
voltage
step thresholds
stay counts
* Fixed GPU staycount interface not applying changes
* Lower GPU idle (screen off) freq to 108 MHz & voltage to 900 mV
* Lower min GPU configurable voltage to 800 mV
Default still = 900 mV for stabilty (lower may cause freeze or SOD - depends on device)
Stable 108 MHz @ 800 mV on my device, maybe not yours?
* Tweak GPU freq thresholds
INSTALLATION
** REMOVE ALL PREVIOUS SkyHigh ROM SCRIPTS FROM /system/etc/init.d FOLDER (EXCEPT: sqlite & ziplaign are OK) **
1. NANDROID (just in case)
2. Flash SkyHigh P6810 JB 4.1.2 ROM or bodivas P6810 JB 4.1.2 ROM
3. Remove any previous CPU control settings from starting at boot
4. Flash in :
a) CWM.zip in custom recovery (CWM or TWRP)
-or-
b) ODIN.tar in Odin [PDA] / Mobile Odin4. THIS WILL PROBABLY "BREAK" currently installed V6SuperCharger scripts ! (test kernel first, and then re-install scripts)
SUGGESTED CPU CONTROL APP : Trickster Mod app
Don't forget to use only one Control app at a time. They will conflict !
CURRENT BUGS :
* Random screen tint (Read Post #3)
ISSUES?
* READ POST #1, #2 & #3 FIRST
CHEERS
UITA
.

Anybody else having problems with the download links for the latest update?
Sent from my GT-P3110 using XDA Premium HD app

[KERNEL] [CM Port] [07 Oct] SkyHigh Kernel [v1.4] [Synapse ++]

[KERNEL] [CM PORT] [07 Oct] SkyHigh Kernel [R3_v1.4] [Synapse ++]
I only have so much free time, so I don't plan to update this kernel. I have other devices I tinker with and personally use.
I have given Devs who have publicly released their CM ROM's (as per GPL and XDA rules) and kernel sources on git, to use what I have done and adapt it to there needs.
This kernel is currently compatible and built for use with the CM ROM Port by @eousphoros. As I don't own or use a T700 WIFI device, I can't guarantee if this kernel will fix any issues or create more. Up to YOU to find out
I don't have time to build for any more devices I can't personally test & debug - sorry.
Let get it straight, I am not a real Developer, but I am UpInTheAir, former part time kernel “hack” of TW SM-T700/705/800/805, SM-N9005 LTE, SGT 7.7 JB & ICS Kernels. I now share with you my Exynos5 CM Port SM-T700 WIFI kernel compiled from official Samsung sources.
* I don't pretend to know everything, so if you can be constructive and help out this project, please do so. You will find allot of answers by searching gitHub, XDA and SEARCH Just like I do …......
>> SCREENSHOTS << from v0.5 : might not be always up-to-date !
CM SPECIFIC FIXES
✔ SELinux removed from kernel build
✔ MTP & PTP mounting
✔ Flip Cover working for supported covers
TWRP RECOVERY SPECIFIC FIXES
✔ Fixes unable to write to INTERNAL storage after restore using TWRP Recovery
FEATURES
✔ Based on official Samsung source: T700OPU1ANG2
✔ ramdisk source: CM ROM Port
✔ Built with Stock ARM Toolchain 4.7
✔ Compiled with KERNEL_MODE_NEON & -mfpu=neon-vfpv4 & hard float
✔ KNOX WARRANTY VOID: 1
✔ adb insecure
✔ init.d script support
✔ busybox v1.22.0-Dream-IRC installed to /sbin
✔ Synapse app support for almost all kernel configurations + more !!
Many descriptions are in the app ! If you require more info, don't be lazy, please SEARCH like I did !
SYNAPSE FEATURES
CPU
CPU max frequency A15 cores = 2100 MHz (stock/default = 1900 MHz)
CPU min frequency A7 cores = 200 MHz (stock/default = 500 MHz)
Multi-core power saving control (sched_mc_power_savings)
CPU VOLT
Voltage control for:
big cores
LITTLE cores
GOV
CPU governor
interactive (default)
on-demand (tweaked to use power efficient workqueues)
conservative
CPU governor tunables
MEMORY
I/O Schedulers
BFQ (default - tweaked for SSD)
DEADLINE (tweaked for SSD)
CFQ
NOOP
FIOPS
SIO
ZEN
General IO tuneable
Int storage scheduler
Int storage read-ahead (1024 KB for 16 GB partition)
Kernel SamePage Merging (KSM)
Pages to Scan
Scan delay interval
Deferred Timer control
Virtual Memory
VNSWAP control
ZSwap memory pool control
Dirty Background Ratio
Dirty ratio
Swapiness
INT/MIF
CPU internal frequency voltage control (MHz)
133 - 222 - 333 - 400 - 440 - 460 - 480 - 500 - 600
Memory frequency voltage control (stock max = 733 MHz)
160 - 200 - 266 - 400 - 533 - 667 - 733 (1.9 GHz) - 800 (2.0 GHz) - 933 (2.1 GHz)
GPU
GPU max frequency = 667 MHz (stock/default = 480 MHz)
GPU min frequency = 100 MHz (stock/default = 177 MHz)
GPU voltage control
POWER SUSPEND
PowerSuspend
Autosleep_hook
Userspace_trigger
DisplayPanel_hook
Hybrid_hook (default)
PowerSuspend State (only with Userspace_trigger)
Dynamic Fsync control (default enabled)
Dynamic management of dirty page writebacks
Adaptive VFS Cache Pressure on Suspend / Resume
ADVANCED
Low Memory Killer (OOM LMK)
Management of not killable processes whitelist
system apps
user apps
Entropy
Gentle Fair Sleepers control
randomize_va_space control
THERMAL
CPU thermal control
GPU thermal control
Memory interface thermal control
AUDIO
* WolfsonMicro WM5102 sound control by AndreiLux
Mono output
HeadPhone equalizer settings
BATTERY
Unstable power detection
AC mains
Standard downstream port
Dedicated charging port
Charging downstream port
Accessory charger adapter
Miscellaneous charging
MHL power
Battery Scaling Calibration (fuel-gauge chip reset)
NETWORK
TCP congestion control
All available enabled.
Default = westwood+
WiFi Power Mode While Screen-On/Off
WiFi DTIM Interval While Screen-On/Off
tcp_default_init_rwnd
TCP/IP network security
TCP/IP network speed
GPS region
Default, Asia, Europe, Oceania, North America, South America, Africa
USB
UMS (USB Mass Storage) mode
MTP mode
USB Keyboard / Mouse (with USB Keyboard app)
BACKUP & RESTORE
Restore - Delete - Backup
kernel
profile
REBOOT
Reboot device
Recovery Mode
Download Mode
Power Off
Clear Synapse Data
FS (File System)
Display FS Type
FS Controls
remount System R/W R/O
remount RootFS R/W R/O
Maintenence
optimise databases (SQLite3)
LOGS
Android logger control (disabled)
logcat
dmesg
last_kmsg
✔ xz kernel compression
✔ Reduced logging
✔ enable ARCH_POWER
✔ use WQ_POWER_EFFICIENT
✔ optimized SLUB memory allocator
✔ Frandom
✔ mount partitions NOATIME and NODIRATIME by default
✔ FIDTRIM
✔ F2FS support in source and ramdisk (not tested)
✔ exFAT FS support
✔ NTFS R/W support with app
✔ CIFS support
✔ Asynchronous Fsync
✔ WIFI: filter multicast packages while suspended
✔ /proc/.config.gz support
CREDITS
* My family !!
* BeansTown106 & Chainfaire - root
* halaszk88 - initial sysnapse layout & source commits
* AndreiLux - many many contributions to Exynos kernel development & Synapse app
* eousphoros - Initial CM ROM Port
* apbaxel - various synapse controls I've adapted
* faux123 - various patches
* Yank555 - various patches
* XDA
* Samsung OSRC
* and many others!
* check github source credits
* IF I'VE FORGOTTON ANYONE, PLEASE DON'T BE SHY AND SPEAK UP, THANKS
XDA:DevDB Information
Samsung Galaxy Tab S - CM Port Kernels, Kernel for the Samsung Galaxy Tab S
Contributors
UpInTheAir
Source Code: https://github.com/UpInTheAir/SM-T700-kernel-T700OPU1ANG2/tree/SkyHigh_CM_Port
Kernel Special Features: Synapse ++
Version Information
Status: No Longer Updated
Current Stable Version: v1.4
Stable Release Date: 2014-10-07
Created 2014-09-07
Last Updated 2014-12-21

Requirements - installation & download
** DISCLAIMER : FLASH AT YOUR OWN RISK **
WARNING :
* Under-volting can cause instability
* Over-clocking can cause freeze/reboot, heat & damage to CPU, GPU or other hardware
* Any customizations may void warranty
* May not be suitable for your device or customizations
* UpInTheAir is NOT responsible, the person you see in the mirror is !
REQUIREMENTS
Watch >> THIS <<
SM-T700 WIFI Exynos device
[UNOFFICIAL][PORT][ROM] Blck/Cyanogenmod 11 (Android 4.4.4) SM-T700 16gb
Rooted
TWRP Recovery or other suitable custom recovery
CHANGE-LOG
v1.4 [07-Oct-2014]
ramdisk :
init.rc: remove Gentle Fair Sleepers boot default - now disabled by default in source
synapse: Backup Restore: fixed bug not backing up & restore current kernel
synapse: FS: add push button to Optimise Databases (SQLite3)
synapse: USB: add Storage Mode MTP & UMS (USB Mass Storage) control (if MTP doesn't mount storage properly on PC, just toggle between Default > MTP )
synapse: USB: USB Keyboard control
synapse: INT/MIF voltage control
synapse: various other layout changes and descriptions etc
kernel :
xz: tweaking kernel compression
af_unix: speedup /proc/net/unix
sched: disable GENTLE_FAIR_SLEEPERS by default
mm: don't wait for congestion when mem is high
block: disable add_random for more performance on SSD's
fs/dyn_sync_cntrl: on by default if enabled in defconfig
mmc: disable CRC check for better performance
mm: optimize Kernel Samepage Merging (KSM)
Input: send events one packet at a time
lib/int_sqrt.c: optimize square root algorithm
readahead: make context readahead more conservative
gpu: ion: system_heap: add support for 2MB allocations
CHROMIUM: clocksource: allow clocksources to be selected earlier during boot
EXYNOS5420 MIF: unlock MIF 933 MHz & set for CPU 2.0+ GHz freq
opp: De-obscurify OPP structs and disclose find_device_opp
devfreq: add Exynos 5420 MIF voltage control
devfreq: add Exynos 5420 INT voltage control
MIF / INT fix
MIF / INT: allow 6250 mV increments
EXYNOS5420 MIF: set 800 MHz for CPU 2.0 GHz freq
workqueue: fix permission for power_efficient
v1.3 [21-Sept-2014]
ramdisk :
init.rc: set defaults: removed KSM deferred_timer as now set enabled in source
synapse: Network: tcp_default_init_rwnd (not sure how to tune the value yet)
synapse: Reboot: added Power Off option
kernel :
arch/arm/Makefile: adaptation to full neon-vfpv4 support
sched: GENTLE_FAIR_SLEEPERS fix unused cpu var
drivers/staging: configurable android log buffer sizes
config: set LOGCAT_SIZE=256
ext4: Speedup WB_SYNC_ALL pass called from sync(2)
bfq-iosched: tuning for SSD
ksm: check and skip page, if it is already scanned
config: enable KSM_CHECK_PAGE
config: enable Conservative & disable Userspace governor
block: Reserve only one queue tag for sync IO if only 3 tags are available
setlocalversion: do not append -dirty when there are un-committed changes
kswapd: reduce time spent in congestion_wait
workqueue: add system wide power_efficient workqueues (battery)
config: enable WQ_POWER_EFFICIENT (battery)
CPUFREQ: ondemand: use power efficient wq (battery)
mutex: Make more scalable by doing less atomic operations
mutex: Queue mutex spinners with MCS lock to reduce cacheline contention
writeback: fix writeback cache thrashing
sched: Make scheduler aware of cpu frequency state
bcmdhd4354: filter multicast packages while suspended (battery)
tcp: add a sysctl to config the tcp_default_init_rwnd
net: tcp: optimization with rcv_wnd
vfp/Makefile: compile with -mfpu=neon-vfpv4 & hard float
slub: optimized SLUB memory allocator
net: loopback: set default mtu to 64K
ksm: enable deferred_timer by default to prevent the CPU to be wakened for ksm activities
ext4: add support for FIDTRIM, a best-effort ioctl for deep discard trim (no idea if it's working)
Report permissive mode in avc: denied messages
config: disable mutex debugging
v1.2 [11-Sept-2014]
ramdisk :
init.rc: set defaults: Dynamic FSync enabled
kernel :
ARM: implement KERNEL_MODE_NEON
config: enable KERNEL_MODE_NEON
Makefile: added ccache for speed up kernel compile
sync: don't block the flusher thread waiting on IO
staging: android: lowmemorykiller: select a new task to kill
fix compile warning for Async Fsync
arm/crypto: add optimized AES and SHA1 routines
config: enable CRYPTO_SHA1_ARM & CRYPTO_AES_ARM
softirq: reduce latencies
ext4: speed up truncate/unlink by not using bforget() unless needed
mm: Clear page active before releasing pages
v1.1 [08-Sept-2014]
ramdisk :
synapse: USB: remove UMS & USB keyboard/mouse controls (causing issues I need to look at when have motivation)
kernel :
gpio_keys: add flip cover wake/suspend event
gpio_keys: fixed gpio flip-cover
v1.1 [08-Sept-2014]
ramdisk :
synapse: USB: remove UMS & USB keyboard/mouse controls (causing issues I need to look at when have motivation)
kernel :
gpio_keys: add flip cover wake/suspend event
gpio_keys: fixed gpio flip-cover
Initial v1.0 release [08-Sept-2014]
* All source and ramdisk mods synced with T700/705 TW build
kernel :
config: disable DEFERRED_INITCALL
add a runtime dependency checkerS for compile
Compile stock and Samsung MTPs together
config: disable SELINUX
INSTALLATION
Watch >> THIS <<
Uninstall any CPU control apps, tweaks and scripts etc.
Recommend: Install Wanam DVFS disabler for greater kernel control
Recommend: Backup your current kernel with TWRP Recovery
Install Synapse app from Google Play and rate it ☆☆☆☆☆ !!
Flash with TWRP Recovery
Any issues, please check Posts #1-3 and search the thread BEFORE posting
DOWNLOAD
8.4" TF700 WIFI EXYNOS
>> SkyHigh CM Port T700 WIFI kernel <<
>> ORIGINAL "Stock" CM Port T700 WIFI kernel <<
SOURCES
>> SkyHigh kernel: UpInTheAir github <<
>> Original "Stock" kernel: eousphoros github <<
.

HELP & FAQ
HELP & FAQ
"SYNAPSE BOOT CANCELLED"
Wait for the kernel to stabilize and device to cool
Open synapse app
Synapse app menu > select all globally > undo > apply ✔
Re-boot
If still issues > try again after #1
Still issues > Manually set config after boot (open synapse app > syanapse app menu > settings > disable apply on boot)
ISSUES
Uninstall any CPU control apps, tweaks and scripts etc.
Install Wanam DVFS disabler for greater kernel control
Flash kernel
Boot and allow things to stabilize
Open Synapse & tap :
"understood" message about unstable boot
"select all globally"
"undo" button
"apply" ✔
Reboot and ensure "synapse boot completed" toast message
You should be good to go
BOOT-LOOP
Power off & let device cool
Wipe cache & dalvik-cache in recovery (if custom recovery)
Re-flash kernel
Re-boot
Let things stabilize and cool before touching anything
BETTER BATTERY LIFE
There are no best settings. User "HABIT" is #1 cause of battery drain, followed by screen, ROM & apps, modem etc
This kernel is built to be balanced with a good mix of battery whilst keeping performance
Decrease screen brightness
Use dark wallpapers and app themes
Check your wakelocks with better battery stats app & use Greenify app to stop unwanted apps self starting and running in the background
Suggest:
CPU governor = ondemand (tweaked for power efficient workqueues)
CPU 200-1900 MHz -25 mV
GPU 100-480 MHz -50 mV (100 MHz may induce some GUI sluggishness)
PowerSuspend Driver = Enable
Dynamic FSync = Enable
Dirty Page Writeback = Enable
CPU Multicore Power Saving = (2) Agressive
BETTER PERFORMANCE
Disable DVFS with [APP][Android 4.0+][DVFS Disabler]
Warmer device under heavy load, but within the safe CPU temp of 95 degC
HOW TO BACKUP YOUR STOCK KERNEL BEFORE FLASHING SkyHigh KERNEL
Boot into TWRP Recovery
Select Backup
Select "[X] Boot" only (boot.img/kernel)
Select Storage > Micro SD (if external sdcard installed) > OK
Swipe to backup
CAN I USE OTHER KERNEL CONTROL APPS
No, many features and options won't be available. Remove all other control apps to avoid conflicts !
Synapse is the recommended and has everything you need
HOW TO MONITOR LIVE CPU & GPU VALUES
CPU load & freq - available RAM - GPU freq - CPU temp - most resource intensive process
[APP][2.1+] Cool Tool
Download my personal cooltool_presets > unzip & copy folder to INTERNAL sdcard. If you have cool tool app already running, you must disable > overwrite existing folder > enable
LITTLE CORE CPU FREQUENCY
Real frequency is apparently double that reported by other apps
Example: min 200 MHz (real) in Synapse is reported as 100 MHz in SetCPU
RANDOM REBOOT
Don't UV or UC CPU or GPU
Use SkyHigh defaults
DOWNLOAD LINK NOT WORKING
I want to keep this project all in one place (Thanks to XDA) - ☆☆ NO MIRRORS ☆☆
Please try again in a few minutes
POOR CPU/GPU BENCHMARK or GRAPHICS PERFORMANCE
Allow the device to cool. Repetitive testing will heat the device hardware and invoke thermal throttling and lead to decreased benchmark.
HIGH CPU/GPU OC >> excessive heat >> thermal throttling >> reduced clock frequency >> DECREASE PERFORMANCE
DO NOT KILL PROCESSES
This feature allows the user to define processes and system processes white-lists filled with the preferred process names and to not be killed by lowmemorykiller, unless it is absolutely necessary.
When a the lowmemorykiller needs to free ram, it will first kill the processes not included inside the two process name lists chosen by the user.
If there are no more standard killable processes, then it will be necessary to kill one of the processes included inside one of the two white-lists, to prevent system hangs, slowdowns, etc.
You can find the [SkyHigh/Synapse] folder on your internal sdcard and add one process name per line. Lists updated on reboot.
Max 25 processes
Example only:
Code:
com.ea.games_r3_row
com.quoord.tapatalkxda.pre.activity
DYNAMIC MANAGEMENT OF DIRTY PAGE WRITEBACKS
* [Christopher83]
This feature allows to have two different intervals for dirty page
writebacks and to dynamically manage them when the system has been
resumed (it's active) or when has been suspended.
Three new procfs parameters are exposed inside /proc/sys/vm path:
- dynamic_dirty_writeback is the activation status of this feature,
set 1 to enable it, set 0 to disable it and use the standard behaviour
- dirty_writeback_active_centisecs is the interval for the dirty page
writebacks when the system is active (screen on)
- dirty_writeback_suspend_centisecs is the interval for the dirty page
writebacks when the system is suspended (screen off)
This feature is in part inspired on Francisco Franco's patch:
https://github.com/franciscofranco/mako/commit/34d79548cf16b69c7d0154836018e7f258a22947
Click to expand...
Click to collapse
BACKUP & RESTORE
If the backup isn't visible, reboot device and ensure for have "synapse boot completed" message. Otherwise synapse won't read the file.
Reboot after applying your new settings
Read "ISSUES" & "SYNAPSE BOOT CANCELLED" above
TCP/IP NETWORK SECURITY
* Thanks to zeppelinrox & V6SuperCharger
Hardening the TCP/IP stack to SYN attack
Bump up tw_buckets in case we get DoS'd
Ignore pings
Don't cache connection metrics from previous connection
Don't pass traffic between networks or act as a router
Enable spoofing protection (turn on reverse packet filtering)
Don't accept source routing
Don't accept redirects
- Further reading:
http://www.cyberciti.biz/faq/linux-kernel-etcsysctl-conf-security-hardening
http://www.symantec.com/connect/articles/hardening-tcpip-stack-syn-attacks
SEGMENTATION FAULT
I don't believe it's kernel related, but rather busybox
Try uninstall your ROM busybox with this app. https://play.google.com/store/apps/details?id=stericson.busybox and reboot.
Re-flash kernel
Use the busybox that comes with the kernel located in /sbin
Also try to update your SuperSu and su binary if it asks and reboot.
USB KEYBOARD / MOUSE
Base project: https://github.com/pelya/android-keyboard-gadget
Required app: USB KEYBOARD
For best results, enable & use Hacker's Keyboard
Steps:
Ensure device USB debugging
Connect device to system via USB cable
Enable in Synapse > USB > USB Keyboard / Mouse >> Enable & apply
Start USB KEYBOARD app
..

Thanks for the hard work, @UpInTheAir! In coming from the debloated stock rom and your other SkyHigh Kernel should I wipe everything, flash this Kernel and then the CM ROM? Or should I flash the stock kernel, CM Rom, set it up, then flash this kernel?

v1.0 released
R3_v1.0 kernel is now released for T700 WIFI CM Port ROM for supported 8.4" models
Change-log is in Post #2.
Ensure you flash the kernel for your device model !!
NOTE: commit credits are in source.
If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first
Further instructions in Synapse app & Posts #1-3
BUG: Synapse: GPS tweaks not available (ROM permission error.)
Enjoy :good:
Cheers,
UITA
.

DjRashonal said:
Thanks for the hard work, @UpInTheAir! In coming from the debloated stock rom and your other SkyHigh Kernel should I wipe everything, flash this Kernel and then the CM ROM? Or should I flash the stock kernel, CM Rom, set it up, then flash this kernel?
Click to expand...
Click to collapse
Please read Post #2 REQUIREMENTS section again. First User post is ROM related...........
I have nothing to do with the ROM, and User should read the ROM thread for instructions on how to flash that.
Personally I would.
1. Make Titanium backup saved to external sdcard
2. Make full TWRP backup and saved to external sdcard
3. Format: system, data, cache, internal storage (just to make sure)
4. Flash CM ROM Port
5. Boot device
6. Reboot & flash SkyHigh CM Port kernel

UpInTheAir said:
Please read Post #2 REQUIREMENTS section again. First User post is ROM related...........
I have nothing to do with the ROM, and User should read the ROM thread for instructions on how to flash that.
Personally I would.
1. Make Titanium backup saved to external sdcard
2. Make full TWRP backup and saved to external sdcard
3. Format: system, data, cache, internal storage (just to make sure)
4. Flash CM ROM Port
5. Boot device
6. Reboot & flash SkyHigh CM Port kernel
Click to expand...
Click to collapse
Thanks! Was just rereading your thread and saw that thanks mucho! I'll be giving this a run and looking forward to synapse con CM!

Flip cover
FLIP COVER now working for supported covers !! :highfive: Will be in next release
Tested with official Samsung Flip cover:
Open = screen ON
Close = screen OFF
Before you ask: NO, I don't know how to make this support non-official Flip Covers Patches and work-arounds on other devices don't work

Nice, looking forward to regaining that function on the book cover.

kenkiller said:
Nice, looking forward to regaining that function on the book cover.
Click to expand...
Click to collapse
I just stumbled upon a couple patches and gave them a try :good:

v1.1 released
R3_v1.1 kernel is now released for T700 WIFI CM Port ROM for supported 8.4" models
Change-log is in Post #2.
Ensure you flash the kernel for your device model !!
NOTE: commit credits are in source.
If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first
Further instructions in Synapse app & Posts #1-3
BUG: Synapse: GPS tweaks not available (ROM permission error.)
Enjoy :good:
Cheers,
UITA
.

The case functionality worked beautifully. Thanks!

On 2 occasions when quickly opening and closing the case, the power menu came up.
No biggie, went away after closing the case. Even the speed that the screen came on is noticeable faster than on stock rom.

kenkiller said:
On 2 occasions when quickly opening and closing the case, the power menu came up.
No biggie, went away after closing the case. Even the speed that the screen came on is noticeable faster than on stock rom.
Click to expand...
Click to collapse
That happened to me once, thought I may have bumped a button..... Obviously not. Edit: can't re-confirm anything, because I'm back to TW
The stock ROM is a lot heavier and more indepth features to resume. There is actually code that can be tweaked for delay in open/close, but I'm not going to fiddle with it. It seems about right. Also the PowerSuspend driver can affect the resume delay too. There are notes in the github commits by Yank.

v1.2 released
R3_v1.2 kernel is now released for T700 WIFI CM Port ROM for supported 8.4" models
Change-log is in Post #2.
Ensure you flash the kernel for your device model !!
NOTE: commit credits are in source.
If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first
Further instructions in Synapse app & Posts #1-3
BUG: Synapse: GPS tweaks not available (ROM permission error.)
Enjoy :good:
Cheers,
UITA
.

Nice kernel. Do you find this increases battery life. Battery life is bad right now on cm11

SS2006 said:
Nice kernel. Do you find this increases battery life. Battery life is bad right now on cm11
Click to expand...
Click to collapse
I don't own a T700 or use CM. I only flashed to my T705 to ensure it booted and kernel functions work.
Who knows about battery. ... The kernel has options exposed for users to tweak how they wish. I can't do any more than this.

Ill try and update this kernel in the next day or so. Just had enough for the moment

I own a T705.
I followed the procedure and although the system booted and the kernel seems to be flashed correctly (at least from what I can see from the info tab under settings), it seems that I lost root. Synapse doesn't work (as it says I have no root).
Now I'm trying to root again and see what happens..
EDIT: Rooting was unsuccessful

Kwbmm said:
I own a T705.
I followed the procedure and although the system booted and the kernel seems to be flashed correctly (at least from what I can see from the info tab under settings), it seems that I lost root. Synapse doesn't work (as it says I have no root).
Now I'm trying to root again and see what happens..
EDIT: Rooting was unsuccessful
Click to expand...
Click to collapse
Not a kernel problem.....
Read the ROM thread. You need to re-root
My procedure I did was prior to a most recent ROM release where root had been removed.

Database Develop

welcome