Related
Hi all, I'm AWOL from the EVO forum while I get my wife's Hero set up.
I just loaded up DC 2.09 (latest / final release) and I'm working through SetCPU, but I saw one user at least who said DC automatically scales the CPU all by itself. So do I need SetCPU to get some battery benefits? The phone is screen-off a lot, mostly used for just calls, texts, and camera other than that, so if it will kick down to 245 automatically, that should save a lot of watts.
So do I need SetCPU, or will DC underclock out-of-the-box?
(Edit: I guess SetCPU gives me the OVERclock, doesn't it? Still, I'd like to know about DC's background so I know how to set up profiles, or even if I should.)
I haven't used DC in a while, but I'm fairly certain it doesn't come with the ability to underclock by default....I'm pretty sure it comes with a stock or very-similar-to-stock kernel that wouldn't have any different cpu speed settings. I could be wrong but nothing in the main OP of his post (here: http://forum.xda-developers.com/showthread.php?t=656690) suggests otherwise. That ability might be available in the DConfig settings somewhere, but I haven't used/seen it in a couple months to remember. Check there first.
If you don't see anything, you probably will want to use SetCPU or the OC widget to scale down. I'd also recommend using the Screen Off profile in SetCPU, to lower the max speed when the screen is off. Sounds like it would be a useful one for you.
This may not work with the included kernel, so if you don't see any results try a different kernel built specifically for use with OC/setcpu:
This one: http://forum.xda-developers.com/showthread.php?t=750170
or one of these: http://forum.xda-developers.com/showthread.php?t=705074 for DC.
Hope this helps.
I am behind on this OP, I started a business and will fix it up later. Read the post from people to get latest news and opinions..
«»«» «»«» «»«»
I like to jump between kernels. Ok truth be told I jump around builds and 'ROM's all the time too. I test govenors and lockup my phone with OCing all the time. It's like a quest, except I enjoy the journey instead of looking for a holy grail.
So I wanted to start a thread to get people finding and using the different kernels.
This OP will be living!
Devs CORRECT me! Users Debate what you are seeing: PROVE it! Time it! Measure it! Log It!
Anyone Can PM me to change something if I am wrong, and otherwise correct me right in the thread, so we can get the explanations!
(I wish to point out that: all of these devs have both influence on each other and have done independent work. So becareful in stating who fixed what, etc. But also I hope the kernel devs realize most of the population doesnt understand compiled from source vs compiled from a branch, etc.., nor do we always hear the news of who Really resolved something...and go easy on us if we incorrectly identify the brains behind some hotness.)
To my knowledge there are 7 offshoots of the DInc .37 kernel as of 3/14/2011
I will categorize them by their LAST known contributor.
As of 3/14/2011 these are all AOSP, but this thread will gather stats on them all (emphasis on GB+ though)
Slayher No Official Thread
----------------------------------------------
Official CyanogenMod HTC Incredible contributor. His kernel style and concepts are most likely going to be stability and quality because the CM7 for DInc built in kernels will be his or approved by him. He also codes for other CM7 DInc projects, and has really helped Gingerbread on the Incredible be a possibility!
LATEST SPECS ONLY -
(Dismally missing this info, sorry)
2.6.37.3
Deadline I/O
CIFS
Ok Slayhers kernels don't number well, because he puts them in CM7, not always in flashable format. I'll try to take some time and open his kernel fork to get a feel for where he stands.
#C 3/2/11 new kernel... I compiled 3/5/11 and it was 2.6.37.2, not sure what other goodies hes done
#D 3/10/11 2.6.37.3 and deadline I/O
======================================================
NEW KERNEL
userjf (Slayher+AudioBoost) http://forum.xda-developers.com/showthread.php?t=958651
---------------------------------------------
userjf has done us a favor and is recompiling Slayher's DEFAULT kernel with just AudioBoost, everything else is in theory perfectly stock. If you need some more volume out of your phone give his kernel a whirl.
Specs follow Slayher's + Audio Boost, see his thread for more details (Mostly just a download link, as he doesn't mess with the rest of the kernel, and does have a list of acronyms for me to put here )
=============================================================
chad0989 (Incredikernel) http://forum.xda-developers.com/showthread.php?t=848453
----------------------------------------------
Chad is the maintainer of the well know Incredikernel, has many 2.6.32.xx updates, and made a thorough investigation into the CWR touchpoint issue, etc. His kernels were generally Sense. Previously he was coordinating with Invisiblek for AOSP kernels.
I used almost all of Chad's sense Kernels before flipping to AOSP build and picking up with Invis. MY OPINION of Chads and Invis kernels: I found their smartass tuning to be impecable for BALANCING wakeup, batterylife, and everyday performance
[But quality of tuning a kernel can make them 'score low' on things like Quadrant, etc. My personal experience and knowledge of kernels (I am a Windows Engineer...but a kernel is a kernel) tell me it is because the tuning is adapting and not focused on perforance... if you want to test performance, use a HAVSless kernel with performance govenor and probably a BFS scheduler because that one just shoots from the hip ]
LATEST SPECS ONLY - Patched up to 2.6.37.3
Any wake issues should be fixed
Audio boost
http://chad0989.dyndns.org/ 03/06/1...d0989.dyndns.org/sysfsinstructions"]READ THIS
Lowered wifi voltage for increased battery life
If you are a tinkerer and love to tweak your voltages, please PM me the voltage table you settle on as most stable for your phone.
Update on sense: Still working on it. The artifacting issue seems to be more complicated than I originally thought
Fast charging.
Working VPN
SmartAss - you need to set min 128 CPU to get full advantage
Wifi sleep policy fixed
Fixed MultiTouch
Changed to V(R) I/O Scheduler
#6 BETA 2.6.37.2-incredikernel-gb-3062011 [03/06/11] (Has FROYO Version)
#7 2.6.37.3-incredikernel-gb-3132011 [03/13/11] (Has FROYO Version)
=================================================
Invisiblek http://forum.xda-developers.com/showthread.php?t=905873
----------------------------------------------
Invisiblek has probably the most well know 2.6.32 Froyo AOSP kernel. Though this OP is my Opinion, I consider it professional. So without having run the calculations MYSELF, i would still stake that If you searched on AOSP froyo kernel's Invis#28 (FROYO) is probably the most established 2.6.32.x. Any kernel could be created to beat it in a particular category, but it was the best well rounded I have seen for AOSP 2.6.32.xx.
LATEST SPECS ONLY -
invisiblek 2.6.37.2: (still just a modified version of slayher's stock cm kernel.) Changes from stock kernel:
- added smartass governor (max cpu freq on screen off: 384mhz)
- added havs
- fast charge (thanks chad0989!)
- removed debugging options (much smaller kernel size)
#0 2.6.37-nodebug-havs-smartass [Along Time Ago]
#1 invisiblek-2.6.37.2-signed.zip [03/09/11]
=================================================
Cayniarb (Tiamat Kernel) http://forum.xda-developers.com/showthread.php?t=885217
Cayniarb is the well know maintainer of the Tiamat Kernel. I have to admit the only time I used one of his kernels is when he was the other choice for GB that had some backports in it. (told you I like to jump around) I found no issues with it, it ran smooth, had good battery life.
If I had to throw out an OPINION of Cayniarb that i like. If you look at his thread, he is very organized, methotical, and straight up. That is good for the community of users, means he is one to do his homework and release good stuff. He also seems to have no problem pushing the kernel settings and contraints so users have options to lock up their DInc to their hearts content... anyway my thoughts.
Cayniarb likes to list his specs as" rolling information" so I can't translate to 100% latest only, because i could be wrong
- cleanup gitub (cayniarb)
- cleanup code (caynairb)
merged updates/changes from CyanogenMod/cm-kernel - brings 2.6.73.2 and various optimizations for GB 2.3.3 (CyanogenMod Team)
[3/2/11][2.6.37.2 CAYNAIRB says 2.6.73.2 but kernel.org disagrees with him ]
Version 3.1.5
implement fast charging for non-SBC versions (chad0989)
add dedicated SBC defconfigs (cayniarb)
- completely update HAVS implementation (intersectRaven)
- tweak HAVS for stability particular to each platform (caynairb)
- add support for 128Mhz CPU clock speed (cayniarb)
- enable JESUS_PHONE mode by default - enables more OC levels (caynairb) -- (I do not recommend overclocking beyond 1.19Ghz and I will not support any problems caused by overclocking. Each device is unique and may or may not be able to clock to different frequencies)
- implement custom defconfig (cayniarb)
- support for the HTC Evo 4G and XOOM (cayniarb) {DINC USERS PAY ATTENTION TO YOUR DOWNLOAD}
- reapplied custom Tiamat tweaks (caynirb)
•enabled multi-touch support (cayniarb) -- CWM 3.0.0.7 works, 3.0.0.5 and 3.0.0.8 do not
#09 Version 3.1.4 [03/02/11]
#10 Version 3.1.5 [03/05/11]
===========================================
bbedward (Savaged Zen-Inc) http://forum.xda-developers.com/showthread.php?t=938790 - PAGE 11
bbedward seems to have picked up the Savaged Zen kernel from 2.6.32.xx I never used the old kernel. Ok He has his latest in his OP (so don't use the page 11 one). FROYO Kernel Available (at this time it is SBC)
LATEST SPECS ONLY -
- HAVS
- BFS + 2.6.37-ck1 - THIS IS CHOOSE-ABLE VIA WHICH DOWNLOAD YOU CHOOSE
- SBC - THIS IS CHOOSE-ABLE VIA WHICH DOWNLOAD YOU CHOOSE
- SLQB Slab Allocator
- MM Preempt 2.6.37 patchset
- Deactivate Pages 2.6.37 patchset
- I/O Less Dirty Throttling 2.6.37 patchset
- Smartass+Savaged-Zen governors
- Tweaked conservative+ondemand governors
- Fixes from CodeAurora
- Tweaks from IntersectRaven
- Froyo compatible build option
- BFS and memory tweaks
- ZRAM Support (new name for compcache/ramzswap)
#1 2.6.37 Savaged-Zen-INC v0.0.1 (CFS/BFS+AVS+SBC+HAVS) - Page 11
#2 2.6.37 Savaged-Zen-INC v0.0.1 (STILL 0.0.1, but now in the OP with updates..please consider this one the most current)
============================================
NEW KERNEL
mwielgosz (Savaged-Zen-INC noSBC) http://forum.xda-developers.com/showthread.php?t=976580
We have been graced with a new kernel. mwielgosz picks up with a dedicated thread for NOSBC Savaged-Zen
I have not given it a whirl because of RC2 and all my hacking i do for my own comforts, i "got" to redo..., so without further ado:
LATEST SPECS ONLY -
BFS OR CFS
- HAVS
- BFS + 2.6.37-ck1 - THIS IS CHOOSE-ABLE VIA WHICH DOWNLOAD YOU CHOOSE
- SLQB Slab Allocator
- MM Preempt 2.6.37 patchset
- Deactivate Pages 2.6.37 patchset
- I/O Less Dirty Throttling 2.6.37 patchset
- Smartass+Savaged-Zen governors
- Tweaked conservative+ondemand governors
- Fixes from CodeAurora
- Tweaks from IntersectRaven
- Froyo compatible build option
- BFS and memory tweaks
- ZRAM Support (new name for compcache/ramzswap)
Watch your downloads! The download page has multiple devices, dont screw up!
#1 Savaged-Zen-INC [2.6.37] noSBC [03/02/11]
---------------------------------------------------------------------------
Kernel Devs I haven't seen, please keep me posted if they popup with a kernel
HeyItsLou
Ziggy
KiNgxKernel
Hydra-kernel
Adrynalyne
Others
I would like to start gathering Kernel Terms here. Please post the definitions of the most common and not so common Terms or Questions you hear out in the wild and I'll put them in the "Second Post"
=============== TO DO Answer What are advantages of this thing over that... ============
--------------------------------
CPU SCHEDULERS
O(1) scheduler - Outdated by the CFS Scheduler
Completely Fair Scheduler (CFS)
++++++++ WHY I WANT THIS? ++++++++
The Brain **** Scheduler (or BFS)
++++++++ WHY I WANT THIS? ++++++++
DISK I/O Schedulers
Budget Fair Queuing IO Scheduler (BFQ)
++++++++ WHY I WANT THIS? ++++++++
Completely Fair Queuing (CFQ)
++++++++ WHY I WANT THIS? ++++++++
V(R) I/O Scheduler
++++++++ WHY I WANT THIS? ++++++++
Deadline IO
miatamx said:
The goal of the Deadline scheduler is to attempt to guarantee a start service time for a request[1]. It does that by imposing a deadline on all I/O operations to prevent starvation of requests. It also maintains two deadline queues, in addition to the sorted queues (both read and write). Deadline queues are basically sorted by their deadline (the expiration time), while the sorted queues are sorted by the sector number.
Before serving the next request, the Deadline scheduler decides which queue to use. Read queues are given a higher priority, because processes usually block on read operations. Next, the Deadline scheduler checks if the first request in the deadline queue has expired. Otherwise, the scheduler serves a batch of requests from the sorted queue. In both cases, the scheduler also serves a batch of requests following the chosen request in the sorted queue.
By default, read requests have an expiration time of 500 ms, write requests expire in 5 seconds.
The kernel docs suggest this is the preferred scheduler for database systems, especially if you have TCQ aware disks, or any system with high disk performance[2].
Click to expand...
Click to collapse
====================================
MODULES YOUR KERNEL MAY OR MAY NOT HAVE (MODULES CAN BE COMPILED INTO KERNEL, or a .ko file)
BCM4329.ko BroadCom One-shot wonder radio chip: BCM4329 - Low-Power 802.11n with Bluetooth® 2.1 + EDR and FM (Tx and Rx)
cifs.ko ability to connect directly to Windows computer: Server Message Block (SMB), also known as Common Internet File System (CIFS) mainly used to provide shared access to files, printers, serial ports, and miscellaneous communications between nodes on a network. Most usage of SMB involves computers running Microsoft Windows, where it was known as "Microsoft Windows Network"
IPTABLES - Linux Firewall (if it has DNAT, it can be part of an integral part of a proxy also) Mostly compiled these days, but if you don't have it you can't do IP Firewall like Droidwall.
TUN - Tunneling, generally compiled in, VPN software needs this.
daftlush said:
http://forum.xda-developers.com/showthread.php?t=976580
In that thread I found...
SBC - Superior Battery Charging. Google "trickle charging" for explanation.
HAVS - Hybrid Adaptive Voltage Scheduling. Voltage drops as CPU speed goes down in order to conserve power."
Click to expand...
Click to collapse
NOTE FROM OP: Is There a negative to HAVS? If so explain? If not why does slayher, who seems to take the time to do a lot of investigation still not include?
=====================================
OC - Over Clock(ing)(ed), using your operating system [Or Motherboard Firmware] to force the CPU or BUS above manufacturer recommendations. I have over-clocked around 100 desktops, and I goof off with my Android all the time in this area.
When you see a Device with a certain Hertz (Hz) or more likely Megahertz (MHz) this is most likely talking about the CPU multiplier Multiplied by the BUS speed (measured in 'heartbeats'... sortof... per second) In general the days of actually changing the the CPU multiplier are gone (AMD used to be able to), so if a device motherboard 'pulses' at 266Mhz and the CPU Multiplier is 3.5, we often say its a 933 Mhz device. Manufacturers build Chips (CPU, GPU, Memory, and I/O bridges (Chipsets) in huge batches. [I grew up 5 miles from Intel in Rio Rancho, New Mexico ] They spot check about 10% of the actual chips, and whatever is the maximum heat, volts, etc they can handle, or tolerate, before becoming damaged or unusable: The whole batch is rated at that speed! (This is important because many chips can FAR Exceed that without ANY VOLTAGE increase at ALL, and some can barely meet that at all (Meet the Intel Centrino's CPU's that failed level 1 or 2 Cache checks, disabled the Cache, and sold as cheap and neutered CPUs))
Over Clocking is when the user attempts to exceed the rating they were told the chip could handle: We can increase that by pushing the motherboard to 'beat' faster. The overall effect is the all data is acted upon, move to memory, moved to i/o [like disk or sound], etc faster, the NEGATIVE is CPU, GPU, Memory, or Chipsets often have brownouts: they need more electricity to operate faster. So many motherboards allow you to tweak the POWER to CPU and Memory, even some I/O Chips. The negative of more power is MORE HEAT. So eventually it is IMPOSSIBLE to maintain stability because the heat cause the chips to shut down. Hence high air cooling, and water cooling, and such. So for instance I can push a 2.4Mhz rated chip to 3.2Mhz or 1.75x its rated capacity IF I am willing to freeze the motherboard in clean nitrogen (or you would be amazed what you can do in motor oil, but i digress)
UC - ?
UV - ?
OCUV -?
GOVERNOR - ?
DEFINITION OF THE GOVERNORS - Thanks to daftlush
daftlush said:
ondemand - Available in most kernels, and the default governor in most kernels. When the CPU load reaches a certain point (see "up threshold" in Advanced Settings of SetCPU), ondemand will rapidly scale the CPU up to meet demand, then gradually scale the CPU down when it isn't needed.
conservative - Available in some kernels. It is similar to the ondemand governor, but will scale the CPU up more gradually to better fit demand. Conservative provides a less responsive experience than ondemand, but can save battery.
performance - Available in most kernels. It will keep the CPU running at the "max" set value at all times. This is a bit more efficient than simply setting "max" and "min" to the same value and using ondemand because the system will not waste resources scanning for CPU load.
powersave - Available in some kernels. It will keep the CPU running at the "min" set value at all times.
userspace - A method for controlling the CPU speed that isn't currently used by SetCPU. For best results, do not use the userspace governor."
From SetCPU FAQ.
SavagedZen governor is just a modified smartass, should minimize or eliminate wake up issues, perhaps a bit snappier.
Click to expand...
Click to collapse
Interactive Quoted from http://android.doshaska.net/interactive
Advantages:
+ significantly more responsive to ramp cpu up when required (UI interaction)
+ more consistent ramping, existing governors do their cpu load sampling in a workqueue context, the 'interactive' governor does this in a timer context, which gives more consistent cpu load sampling.
+ higher priority for cpu frequency increase, rt_workqueue is used for scaling up, giving the remaining tasks the cpu performance benefit, unlike existing governors which schedule rampup work to occur after your performance starved tasks have completed.
Laymans terms: When load starts, it ramps up CPU based on measuring how much IDLE cpu is not used. Versus competing for CPU to measure what everyone else is using. So it keeps increasing speed until the Idle bucket stop being hungrily emptied...thus measuring need without interrogation any process.
Smartass and SZ Governers are Special because they have settings controllable by the kernel Dev. Simply stated they have a range, set by the kernel dev, of MinX to MaxX CPU while screen is off and a different MinY to MaxY while the screen is on. It then operates much like Interactive (however the code was done from scratch)
Quoting http://www.ziggy471.com/2010/11/07/smartass-governor-info/ who was Quoting http://forum.xda-developers.com/showthread.php?t=730471
smartass governor – is based on the concept of the interactive governor.
I have always agreed that in theory the way interactive works – by taking over the idle loop – is very attractive. I have never managed to tweak it so it would behave decently in real life. Smartass is a complete rewrite of the code plus more. I think its a success. Performance is on par with the “old” minmax and I think smartass is a bit more responsive. Battery life is hard to quantify precisely but it does spend much more time at the lower frequencies.
Smartass will also cap the max frequency when sleeping to 352Mhz (or if your min frequency is higher than 352 – why?! – it will cap it to your min frequency). Lets take for example the 528/176 kernel, it will sleep at 352/176. No need for sleep profiles any more!
setCPU, especially in relation to Profiles
nandroid in relation to /boot
---- UNSURE WHERE TO CATEGORIZE ----- This is a file I/O, memory I/O, or DB I/O concept... I'm not sure how to tie it to kernel
"In computer Operating systems, Read-copy-update (RCU) is a synchronization mechanism implementing a kind of mutual exclusion[note 1] which can sometimes be used as an alternative to a readers-writer lock. It allows extremely low overhead, wait-free reads. However, RCU updates can be expensive, as they must leave the old versions of the data structure in place to accommodate pre-existing readers. These old versions are reclaimed after all pre-existing readers finish their accesses."
This should be stickied.
Edit: Suggestion for renaming the title: drop "HTC" and leave it as simply "The Incredible List of .37 Kernels"
just a thought
Hey bud you forgot Tiamat, i see that you have it included in your mirrors but don't have it listed here, still thanks for the post, makes getting at all the kernels much easier
poetzmij said:
Hey bud you forgot Tiamat, i see that you have it included in your mirrors but don't have it listed here, still thanks for the post, makes getting at all the kernels much easier
Click to expand...
Click to collapse
was still writing was a long post and didn't want to lose anything...
Heyitslou has a kernel thread you should check out. He has a number of them listed and some of the Rom dev's are including his in their work.
spence341 said:
Heyitslou has a kernel thread you should check out. He has a number of them listed and some of the Rom dev's are including his in their work.
Click to expand...
Click to collapse
Does he have a 2.6.37.x Kernel?
Thanks for compiling this list!
Sent from my CM7 Incredible.
galaara98 said:
Does he have a 2.6.37.x Kernel?
Click to expand...
Click to collapse
Nope, sorry it s 2.6.32.xx.
In the OP, I'd throw up a link to the respective thread under each individual kernel. Easier to find more info about each kernel.
Just to add to the editorialization, Invisiblek's kernels were regarded as possibly the cream of the crop for AOSP Froyo kernels overall, with a superb balance of performance and battery. Over on the MIUI forums, the #28 was by far the most popular kernel choice to go along with that ROM, and his GB kernel pairs up with CM7 beautifully.
Reopened thread per agreement with OP to increase traffic to Developer's work/thread with providing forum thread link instead of external link. Will continue to moderate as usual.
Incredible list of 2.6.37.xx kernels, Back in Business
Ok, I fixed up the OP... I am happy for now... probably some grammar and typos. But I think this is a great start. Let me know guys!
Aaron
Thanks for this. I was starting to lose track of all the 37.xx kernels.
andrew8806 said:
Reopened thread per agreement with OP to increase traffic to Developer's work/thread with providing forum thread link instead of external link. Will continue to moderate as usual.
Click to expand...
Click to collapse
Seems the sensible solution
galaara98 said:
Ok, I fixed up the OP... I am happy for now... probably some grammar and typos. But I think this is a great start. Let me know guys!
Aaron
Click to expand...
Click to collapse
Kudos. Lookin' good so far.
Yes thanks so much for organizing and explaining these to the best of your knowledge
Now that it has links to all the threads where people can get much more info on the kernels, I linked it to the CM7 Nightly Thread (if that's ok with you, if not, let me know and I'll remove it). Noticed you didn't have the link to your mirror where people can download it on the OP. Was this intentional?
So whats everyones favorite so far? im running the invisiblek kernel, and would like to say it has been the best kernel so far.
It should probably be noted that these are AOSP kernels....not Sense....otherwise a good addition.
cl1ckclack said:
So whats everyones favorite so far? im running the invisiblek kernel, and would like to say it has been the best kernel so far.
Click to expand...
Click to collapse
Been taking Chad's for a test run these last few days.
IMO it's pretty much between Chad's and Invisiblek. The Savaged kernel ANNIHILATED my battery life, and Tiamat just won't turn the screen on unless I hit the power button ten times.
Hello all, today I will be showing you how to speed up your Nook Color a bit... these methods should work for CM9/CM10/CM10.1/Paranoid Android/etc., but I personally found these out while running PA ICS. The apps you may need to make your phone faster are Ram Manager (Free OR Pro) and No Frills CPU Control (In the case that your ROM doesn't have overclocking in settings). Basically, using these "tweaks" (minus overclock, as whenever I flash a ROM the first thing I do is overclock it), I went from a painfully slow (as in, I was ready to go back to Gingerbread) device to a somewhat faster device. I've seen huge differences in launching games and apps especially, and opening to app drawer seems to be smoother also.
CPU Overclock
Either using No Frills CPU Control or the built-in overclock, set your max CPU speed to the highest on the list (not exceeding 1200, but it shouldn't show anything above that anyhow). Change your governor to either Ondemand or Performance (I personally use Ondemand and have no problems with it). Most of you are probably already overclocked though, so please don't look at me like I'm stupid.
Swap Space
Open up RAM Manager and there should be an option to change your swap space at the bottom. I changed mine to about 48 and am content with that, although I must add it may make your SD card's life shorter. This will increase your RAM, thus allowing you to have more apps open at once.
Force GPU rendering
Open Developer Options in your settings app and check "Force GPU Rendering"... I'm guessing this is one of the biggest factors to my tablet becoming smoother, as from research it helps lower end devices achieve a better framerate, although it may decrease your battery life. Also, I cannot guarantee every app will run great with this. I tested a game (Dynamite Jack) with this setting enabled and it wasn't too shabby at all! But yes, I can definitely see a difference in the overall speed of my Nook Color.
Please tell me how these work for you
I tried these settings, but unfortunately didn't perceive any performance improvement.
Good call on RAM manager. Hadn't seen that before, its going on my NC and RAZR now
Can anyone tell me a good reason for that RAM Manager app to have the permissions it does? Location, Identity, and full network access?
Does NOT work. All this app " no frills CPU" does is provide a GUI front end for the settings already found for our nook color using CM 10+ in its "performace" settings. Also this app does not provide over clocking above our set 1100 MHz. You will need a custom over clocking kernel for the encore for this. Check over on the CM 10 kernel thread n the development section.
This mod disables the powerdaemon constraints that prevent custom cpu governor settings from sticking. This was developed on my T210R, but should work for others.
Background:
There are 2 files in the /system/etc directory (powerdaemon.xml and powerdaemon_z3.xml) that are used to monitor various states of the system (ie. "booting", "games", "video playback"). Certain constraints are set depending on the system state. Most of these constraints are a variation of the "ondemand" or "performance" governors. These constraints adjust the min/max frequency and set control to a specific governor. This is why you can not get any cpu governor settings to stick.
What I changed:
I changed all system states to be directed to the "normal" constraint. This constraint does NOT change the selected governor and has min/max frequencies of 0/150%. This basically disables any effect the powerdaemon has. The 150% max does not mean your cpu will run at 150%, it simply allows overclocking if your kernel supports it.
In my testing, simply deleting the files or disabling the system states caused higher than normal cpu usage. It seemed to be trying to continually process information that it couldn't find. So, creating a "normal" constraint that did not limit any funtionality seemed to be the best option. The powerdaemon controller still processes everything, but has no real affect.
Installation:
Download and flash the Powerdaemon.disable.zip (with custom recovery). You may want to make a copy of your original files if you are using a different model.
If you want to restore the original xmls, just flash the Powerdaemon.restore.zip. These are from my T210R.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Flash at you own risk. I tried my best to explain what the mod does, so I take no responsibility for what you do with your Tab.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Reserved
nice
Nicely done! What settings are you running your tab with now?
Sent from my SAMSUNG-SGH-I747
hkjr said:
Nicely done! What settings are you running your tab with now?
Sent from my SAMSUNG-SGH-I747
Click to expand...
Click to collapse
To be honest, I actually use the default settings (with powerdaemon still enabled). I don't really use my Tab very much (except when I travel), so I don't worry much about battery life or performance enhancements.
With the powerdaemon still enabled, I find that I get less lag, because some of the constraints were set to change minimum frequency to a higher value than what it would normally be.
I discovered how this works back when trying to build my own kernel (with additional governors). I could never get the new governors to stick, so I started investigating and discovered the powerdaemon files. I have never really been that interested in changing governors, but I know that there are a lot of people who really like to change them. That's why I decided to put this out there. :good:
I have the t217s that doesn't have a working recovery if I copy the two files to my /system/etc and give them the proper permissions it should work right?
Sent from my SM-T217S using Tapatalk
jbyers5355 said:
I have the t217s that doesn't have a working recovery if I copy the two files to my /system/etc and give them the proper permissions it should work right?
Sent from my SM-T217S using Tapatalk
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Theoretically, yes. Since you have a different model than what I developed it on, you may want to compare your original files to the "restore" files I provided, to make sure that everything is the same. I know the cpu is a little different with the T217. Let us know how it goes.
Well I looked in /system/etc on my t217s and did not find any powerdaemon files but I did find that if I change the governor settings that they do stick
Sent from my SM-T217S using Tapatalk
You can also simply edit the values in the default files to change cpu config without using an app to do it. The disadvantage is you might not know for certain what is and isn't supported, but I upped my minimum frequency across most system states to 624 mhz, and I switched from the default 'ondemand' governor to 'interactive.' As a result my cpu's frequency, when not in deep sleep, is usually at 624 mhz and occasionally at 1.2 Ghz and rarely at 1.012 Ghz.
I had only owned my tab for a couple days before switching the settings, so I can't provide much of a before/after case study. But I am pleased with performance and battery life is okay, on average usage with 20% screen brightness (occasionally higher) it seems I can get at least 6 hrs screen on time over the course of a day.
Does it increase performance? Game?
Sent my SM-T210 Using Tapatalk
gr9nole said:
Does it increase performance? Game?
Sent my SM-T210 Using Tapatalk
Click to expand...
Click to collapse
It only allows you to change governors and keep those settings from bring overwritten by the system.
Sent from my SCH-I605
Great work, works on T210 WiFi model.
Sir I included your Powerdaemon MOD on my SGYTT210xPerformanceUpgradePack, credits were given to you on the MOD. I cannot send private message to you, I think theres restriction.
V003 great working 4.1.2
SM-T210R cihazımdan Tapatalk kullanılarak gönderildi
@gr8nole is there a way to get this working on tab 4
zach61797 said:
@gr8nole is there a way to get this working on tab 4
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Depends on which version you are referring to. For the Marvel based 7 in Tab, you need to delete /system/bin/phservice. At least that is what is required on 4.4.2 for the Tab 3 7 in (Marvel-based). On 4.4.2, the don't use the powerdaemon.xml's anymore.
gr8nole said:
Depends on which version you are referring to. For the Marvel based 7 in Tab, you need to delete /system/bin/phservice. At least that is what is required on 4.4.2 for the Tab 3 7 in (Marvel-based). On 4.4.2, the don't use the powerdaemon.xml's anymore.
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I have the tab 4 8.0 t330nu. I have tried to change the speed but it never lets the speed change. I can go from ondemand or preformance bit the speed stays set i cant make it go up or down
zach61797 said:
I have the tab 4 8.0 t330nu. I have tried to change the speed but it never lets the speed change. I can go from ondemand or preformance bit the speed stays set i cant make it go up or down
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No clue, sorry.
gr8nole said:
This mod disables the powerdaemon constraints that prevent custom cpu governor settings from sticking. This was developed on my T210R, but should work for others.
Background:
There are 2 files in the /system/etc directory (powerdaemon.xml and powerdaemon_z3.xml) that are used to monitor various states of the system (ie. "booting", "games", "video playback"). Certain constraints are set depending on the system state. Most of these constraints are a variation of the "ondemand" or "performance" governors. These constraints adjust the min/max frequency and set control to a specific governor. This is why you can not get any cpu governor settings to stick.
What I changed:
I changed all system states to be directed to the "normal" constraint. This constraint does NOT change the selected governor and has min/max frequencies of 0/150%. This basically disables any effect the powerdaemon has. The 150% max does not mean your cpu will run at 150%, it simply allows overclocking if your kernel supports it.
In my testing, simply deleting the files or disabling the system states caused higher than normal cpu usage. It seemed to be trying to continually process information that it couldn't find. So, creating a "normal" constraint that did not limit any funtionality seemed to be the best option. The powerdaemon controller still processes everything, but has no real affect.
Installation:
Download and flash the Powerdaemon.disable.zip (with custom recovery). You may want to make a copy of your original files if you are using a different model.
If you want to restore the original xmls, just flash the Powerdaemon.restore.zip. These are from my T210R.
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Flash at you own risk. I tried my best to explain what the mod does, so I take no responsibility for what you do with your Tab.
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Hi Gr8nole,
Thank you for your work on this. I have an issue with my T210R (4.4.2) the settings I make they don't stick after reboot. I used kernel adiutor, EX kernel manager, Performance tweaker.
I've flashed Powerdaemon.disable.zip
I have busybox installed, am I missing something?
Edit: I've found your suggestion about deleting /system/bin/phservice. I deleted the file, rebooted, changed to governor to lionheart. It seemed to keep the settings.
Thanks!
Guys.. With every Android since the 2.x, you could activate the "Developers Options" and activate an option called "Show CPU usage".
"The numbers show the average load of the CPU in different time intervals. From left to right: last minute/last five minutes/last fifteen minutes"
My doubt: When I install any CM13 ROM (now I'm with Exodus) on my S5 (G900M), the load, after some minutes, are always near 10. Now I'm staring at it, with many apps installed (whatsapp, facebook, uber, maps, messenger, firefox, mx player, es file explorer, foursquare, traceroute, wifi analyzer, gmail, imo, os monitor, tinder, fing, poweramp, mindroid, remote desktop, 99, youtube, andsmb, diskusage, soundhound, photos, dropbox, goseek, instagram, juicessh, google now, picsplay, speedtest, skype, swiftkey, stabilitytest... just to name some...) and it's 11.32 / 14.37 / 23.11
Now the problem: whenever I install Boeffla Kernel or CrazyKernel, the load is ALWAYS higher.. always nearing 20. With default options, or trying to tweak the cpu options in both kernels.. and the bigger problem is that I SENSE that. The phone seems to RUNS SLOWER.
ps: If you LOCK your device (or let it lock by the timeout), this "load" value will raise because the cpu will also run slower.. it doesn't mean it's working more, just that more work is queued to the cpu, as it doesn't NEED to work on it (because it's locked/screen turned off, etc)
Hi,
I guess everyone will have that. So the poll is quite useless.
The reason for it, as I tracked down:
Two governors (intellimm and slim) are adding overhead to the system, even when they are not used.
Why? I do not know, as I am not the developer of these governors.
But for a test, I removed them from beta11 and compiled it as a beta11test1 version, attached here.
Let me know if removal of these governors lowers the cpu utilization for you down to stock levels almost.
Andi
Lord Boeffla said:
Hi,
The reason for it, as I tracked down:
Two governors (intellimm and slim) are adding overhead to the system, even when they are not used.
Why? I do not know, as I am not the developer of these governors.
But for a test, I removed them from beta11 and compiled it as a beta11test1 version, attached here.
Let me know if removal of these governors lowers the cpu utilization for you down to stock levels almost.
Andi
Click to expand...
Click to collapse
Wow that was fast. I'm testing right now and yes, the CPU load is *finally* down to ~11 like it were with vanilla CM13 kernel (which I think is what Exodus uses).
Still I get a little lag here and there mostly when "loading" stuff (like when clicking in a group chat on whatsapp, which needs to open a huge .db to display the history.. I think).....
But nice work.. I wonder what more could be optimized.. it's strange to a vanilla kernel be snappier than a custom .. given the experience you have..
Thanks
fbs said:
Wow that was fast. I'm testing right now and yes, the CPU load is *finally* down to ~11 like it were with vanilla CM13 kernel (which I think is what Exodus uses).
Still I get a little lag here and there mostly when "loading" stuff (like when clicking in a group chat on whatsapp, which needs to open a huge .db to display the history.. I think).....
But nice work.. I wonder what more could be optimized.. it's strange to a vanilla kernel be snappier than a custom .. given the experience you have..
Thanks
Click to expand...
Click to collapse
I am not sure vanilla stock kernel is more snappy. I feel it is the other way round personally. But this is about expectations and perception. Also it is about what is important for one. A custom kernel gives you many other goodies that might of course compromise in other areas. Nothing is for free.
And I personally prefer some other features over pure performance.
But well, that's it. I will not do more, having in mind the s5 kernel is only my #5 kernel in terms of priority. Sorry.
Andi
Lord Boeffla said:
I am not sure vanilla stock kernel is more snappy. I feel it is the other way round personally. But this is about expectations and perception. Also it is about what is important for one. A custom kernel gives you many other goodies that might of course compromise in other areas. Nothing is for free.
And I personally prefer some other features over pure performance.
But well, that's it. I will not do more, having in mind the s5 kernel is only my #5 kernel in terms of priority. Sorry.
Andi
Click to expand...
Click to collapse
Now I'm on boeffla-config trying to tune "interactive" governor and it says it's not tunable. it was before this test version. Maybe the removal of that other governors screwed up boeffla-config listing of whats tunable or not.. ? check this out too please..
fbs said:
Now I'm on boeffla-config trying to tune "interactive" governor and it says it's not tunable. it was before this test version. Maybe the removal of that other governors screwed up boeffla-config listing of whats tunable or not.. ? check this out too please..
Click to expand...
Click to collapse
Well, not such an issue here. I can enter tunable mode.
Reset your app via the apps maintenance menu.
But you know, you are on a completely unsupported test kernel. Just to say that again.
Andi
Lord Boeffla said:
Well, not such an issue here. I can enter tunable mode.
Reset your app via the apps maintenance menu.
But you know, you are on a completely unsupported test kernel. Just to say that again.
Andi
Click to expand...
Click to collapse
Right, but given the test was a success, you'll remove these governors for good, right?
fbs said:
Right, but given the test was a success, you'll remove these governors for good, right?
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Click to collapse
Yes, already announced everywhere (here on xda, as well as on Twitter and on my site).
Andi