Database Develop

[Q] dynamic overclocking

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I use setcpu to do this.
Look into the governors, choose one.
Then choose the appropriate thresholds (in the advanced menu) for what you do.
It doesn't allow you to tweak per app, but tells the cpu governor at what %of cpu to move to the next cpu speed (up or down).
I set mine very low, as i care more about battery than performance. So my up threshold is like 95% or something.
But my down threshold is a lot more agressive.
But you do the opposite.
MuF123 said:
Hello,
my question is regarding dynamic overclocking. I've used the ones that raise the speed when under a load - but my question is -
Is there a way to return to stock clocks after certain time?
Explanation:
situation1: I want to check new single mail or open new single IM or check university's website for some news, I want the device to be FAST as possible, nevermind the battery.
situation2: I want to use maps/navigation/IM/games/web browsing for longer period of time (hours?) with the screen on. I don't need all the power when I play solitaire, text on IM or browse not-so-important news websites.
I think when I've seen the realtime clock displayed on my phone it jumped to max clock right after I've clicked almost anything on the screen. I want the speed-up, but after certain period of time to stop doing this in favor of the battery life-time.
Any ideas how to do this? Thanks!
Click to expand...
Click to collapse
Sent from my Milestone using Tapatalk

Yes, just throttle the cpu to give you more power when you are sluggish. That could work for you.
Me? I have my droid do 110 when screen is off (works quite well!), and then I FORCE the unit to 1000 when plugged in. Besides that i throttle the cpu based on battery power: more cpu power with more battery life. Makes my droid last longer.
I might want to add a throttle up when sluggish and not in my personal battery red zone and a throttle down when the cpu gets too hot period.
Any cpu frequencies that you all would suggest?

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MuF123 said:
Thanks for the reply, but - think about this, I will start a 3D game, it will use 100% of the cpu so it would always stay at the highest possible frequency (+highest voltage). I don't want that.
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Click to collapse
I dont get it?
You dont want max speed in game? Why do you overclock?
If the game requires 100%, the it will (and should) clock up.
As soon as the game doesnt, it will clock down (depends on your threshold).
The only other i could see, is to change the max clock rate in setcpu before you play the game. This will ensure it doesnt clock higher than your choice, but requires a manual step.
But seriously, if your cpu is pegged at 100, why would you not want it to step up the higher speed?
Sent from my Milestone using Tapatalk

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MuF123 said:
exactly - I don't want minimum battery in game, that's why I don't want to overclock.
actually from the nature of 3d rendering I think every game will run at 100%, but the situation when the game hits the frame limiter (not likely on milestone).
I want snappy performance while doing few quick tasks:
e.g.: new IM comes, I want to unlock, load the application, get to the IM, reply, lock. (40seconds)
or
taking phone from cradle - I want the phone to load homescreen fast, rotate the screen, open phone app, to look at last missed call and call back (20seconds).
Battery life won't be affected by 40 or 20seconds of ~1100mhz, okay.
And then I start a game for a prolonged time. It will run smoothly even on 550MHz, the additional frames I see are just waste of battery = I don't want that.
So now I have two options - either run at max speed and it will be always fast and it will drain my battery when I decide to play for an hour.
OR
I can use default speeds for longer battery life for everything and I will wait an hour to rotate the screen in browser or IM app.
Click to expand...
Click to collapse
You could compromise and find a max speed that you could undervolt to make it drain battery like stock. My 800mhz vsel is less than the default vsel @550. So the battery drain is less...
It requires some trial and error, but most "slight" overclocks (700,800; depends on the phone) can be configured to drain less than stock.
Of course, if you feel you need 1000 or 1100, this wont work as it requires increasing the vsel (or at least not decreasing it).
Sent from my Milestone using Tapatalk

[HOW-TO][MOD]Thermal throttling - screen dimming, cpu speed, charging current, etc.

When I bought Xperia T, after a while, I started to be a little disappointed with performance, autobrightness, discharging when playing, etc.
After some digging deeper into this problem, I have found, that cpu is throttled by temperature. And not only the cpu.
A few minutes of playing game, cpu goes to 800MHz, display brightness goes to level 100 (max. is 255), wall charger current is reduced (even when connected, it is discharging), radio power is reduced, etc.
Change it yourself:
Example:
xo_therm 14 -1000 380 20 NOTIFY CAM_NORMAL cpu_perflevel:1728000 charge_current_limit:0 usb_current_limit:1 modem_level0 lcd_brightnesslevel:240
xo_therm 14 = sensor step
-1000 = -100,0°C
380 = 38,0°C
20 = don't know (maybe some kind of sample rate?)
NOTIFY CAM_NORMAL = obvious (camera)
cpu_perflevel:1728000 = cpu frequency
charge_current_limit:0 = obvious (0 is 1300mA I think, 1 is 1100mA, 2 is 900mA, etc.)
usb_current_limit:1 = obvious (has impact on charging too)
modem_level0 = power of modem
lcd_brightnesslevel:240 = obvious (0 - 255)
Set the highest temperatures, with low enough frequencies and charging current values, to let phone cool down.
"gpu_perflevel" can be used too and there are some other thermal sensors in sysmon.cfg, which are also responsible for thermal throttling.
Disclaimer:
Each device is different and I am not responsible, if your device burns with some values from here.
Both CPU cores always on:
Echo 1 in /sys/devices/system/cpu/cpu1/online and change permissions to 444. And if you want to prevent errors from log (and maybe some unwanted wake locks), rename /system/bin/mpdecision to something else or delete it.

what is temp at what cpu throttles (and other things)?
seems it is lower than other devices, something like 40C, i think my sgs3s was at 76C or similar.. not sure, will check later.
sgs3 was a very hot phone.
Sent from my Xperia T

You can see the temperatures in sysmon.cfg - xo_therm 400 500 = 40 - 50°C for example. Cpu temperature, not battery. There is no tool to monitor cpu temperature, but if you set your own frequencies, you can see with Cool Tool, how long it takes to the lowest frequency.

peetr_ said:
You can see the temperatures in sysmon.cfg - xo_therm 400 500 = 40 - 50°C for example. Cpu temperature, not battery. There is no tool to monitor cpu temperature, but if you set your own frequencies, you can see with Cool Tool, how long it takes to the lowest frequency.
Click to expand...
Click to collapse
thanks, will check. i am on cm10 and didn't notice throttling yet, but i will check now as it is ****ty if so.
Sent from my Xperia T

I have noticed the throttling but it doesn't affect the performance in my case, playing games and watching HD video are fine, just annoying when the screen suddenly does dim.
Sent from my LT30p using xda premium

@OP:
If you don't want throttling, uninstall Androids inbuilt Thermal monitor(No need to tell you the risk by doing that I guess).

Thanks for you valuable advice.

Don't think it would help as that file says 2nd core off values are hardcoded
Sent from my LT30p using Tapatalk 2

I think, that it works, because I tested it and I am using my own values.

Good thing I won't be playing games when my T will arrive

https://developer.qualcomm.com/mobile-development/development-devices/trepn-profiler
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Still? Damn how long do they take ? -.-
Here is the .apk of the old version. No idea how much works and what doesn't!

Hello,
Could it be some kind of default on your device ? or maybe the application ?
Cause I remember Qualcomm's communicating on their S4 being "cooler" than its opponents when under heavy load.
Can someone else confirm ?
What's strange is that the game you mention (Osmos HD, which I bought some time ago for my TF101) does not even use super high end 3D graphics etc etc ... maybe the perf drop could come much quicker with some cpu/gpu intensive apps.
If confirmed, it might even become a big "no go" on this phone for me.
Nickola

nickola said:
Hello,
Could it be some kind of default on your device ? or maybe the application ?
Cause I remember Qualcomm's communicating on their S4 being "cooler" than its opponents when under heavy load.
Can someone else confirm ?
What's strange is that the game you mention (Osmos HD, which I bought some time ago for my TF101) does not even use super high end 3D graphics etc etc ... maybe the perf drop could come much quicker with some cpu/gpu intensive apps.
If confirmed, it might even become a big "no go" on this phone for me.
Nickola
Click to expand...
Click to collapse
I've had this phone for a while now and I haven't had a bit of lag while playing any game I have. Everything seems fine except the sudden dimming of the screen when playing games. Don't let this put you off buying the phone, its a great phone
Edit: been playing Osmos HD for at least 25 minutes, I'm experiencing no such lag or performance issue. Only the dimming issue I seem to get.

Well, after some more investigation, I have found, that lags in Osmos HD are not caused by cpu throttling, but wifi disconnecting.
Playing the game is fine, but still, with default settings the temperature is going high and except the screen dimming, cpu goes to 800MHz, (1 core disabled on highest temperature), and phone is discharging even when connected to wall charger.
It seems to me, that the overheating is not caused that much by cpu, but gpu. It would be nice, if it could be tested somehow by lowering the frequency of gpu.

I wonder if the heating issues could be fixed with software patches. Given Sony's desire to incorporate playstation stuff, I find it hard to believe there is some sort of hardware issue.
Wish we could get some more samples to work with.
Sent from my HTC_Flyer_P512_NA using xda app-developers app

Just measured with my settings (in the room - about 23°C):
10 minutes of playing Osmos HD without charging = 62°C CPU temp
With one core running on 1350 MHz and LCD brightness value 150, it's not increasing anymore.
When charging, the temperature will go higher. I will test it too.

peetr_ said:
Just measured with my settings (in the room - about 23°C):
10 minutes of playing Osmos HD without charging = 62°C CPU temp
With one core running on 1350 MHz and LCD brightness value 150, it's not increasing anymore.
When charging, the temperature will go higher. I will test it too.
Click to expand...
Click to collapse
Have you tried treppn profiler?
Anandtech says a CPU core draws around 450-750mW while gpu goes 800-1200mW!
Seems like 400mhz is a hard Task for an 225.

If you are still on ics maybe try jellybean? Perhaps project butter may more efficiently handle the gpu.
Maybe even make a list of "stress test" for people to try and see what the various results are.
If all else fails try undervolting the gpu and cpu.
Sent from my HTC_Flyer_P512_NA using xda app-developers app

Haldi4803 said:
Have you tried treppn profiler?
Anandtech says a CPU core draws around 450-750mW while gpu goes 800-1200mW!
Seems like 400mhz is a hard Task for an 225.
Click to expand...
Click to collapse
Yes, I tried trpn profiler provided by you, but there are limited options.
It looks like the GPU cannot handle this frequency.
Undervolting won't help anything, but lowering GPU frequency would help I guess. But this cannot be done without custom kernel, allowing this.

LegibleEel said:
I've had this phone for a while now and I haven't had a bit of lag while playing any game I have. Everything seems fine except the sudden dimming of the screen when playing games. Don't let this put you off buying the phone, its a great phone
Edit: been playing Osmos HD for at least 25 minutes, I'm experiencing no such lag or performance issue. Only the dimming issue I seem to get.
Click to expand...
Click to collapse
Same here. I've been playing Speedball 2 and GTA3 mainly but I have played a few others too and haven't experienced any lag and no performance issues observed at all.

[Q] CPU frequency throttling

hi all
im using DooMKernel for a while and when i set the maximum frequency for any speed faster than [email protected], when the cpu is on heavy load or when the phone temperature is rising above some threshold (i think it's around 45 degrees, not sure tho) - there is an automatic down throttling to stock valus (max 1.5ghz) and nothing will recover it back to modified values unless reboot or reapplying the OC via SetCPU or equivalent.
now, i know there is a 'thermal control' sort of mechanism, and i also know it probably resides both on os level and sony framework, but i wish i could disable it somehow.
i know there is a great risk of frying my XZ, but im only intend to overclock for short terms and not for a main daily usage.
a quote from DooMLoRD's post on the subject:
It has been observed that the overclocking sometimes reverts back automatically to stock settings especially after heavy CPU load and if the device heats up.
I think have found why this happens:
Android OS level
there is a binary called: /system/bin/thermald which writes lower CPU freq values to the CPU sysfs interface if the device starts heating
there is also an app "Overheat Control" which i suspect is doing something similar
Kernel level
there seems to be some sort of fail-safe in place "msm_dcvs" which resets the CPU to 918Mhz or 1026Mhz or 1512Mhz
could also be some other things i am still searching
now there are ways to circumvent these issues but given the risk of the damage associated with overclock for long time i think its in our best interest to not screw with these fail-safes...
Click to expand...
Click to collapse
if someone could plz explain how to totaly disable thermal control - it would be much appreciated.

if you totally disable them your Smartphone will shutdown every time you reach....(cant remember! think it was 75°C) SoC Temp! and you will reach that kinda fast!

Thermal Settings

I have noticed the Xiaomi Mix has some persistent software thermal throttling after a short period of time.
I ran the same test on a OnePlus 3T and noticed this throttling issue is not present.
It's possible the temps to start throttling are too low on the Mix.
Is there any way to modify or increase these throttle limits?
I know this has been done before but I cannot load the Thermal conf file in /system/ etc / thermal-engine.conf
Can we replace the file with something else ?
The OnePlus forum members released several versions of the file with different throttling temps. Can we use these files or make our own.
https://forums.oneplus.net/threads/oneplus2-how-to-fix-thermal-throttling.417108/

Did you ever get any further with this? My phone idles at ~35C. I read a review that said throttling begins at ~40C so I get throttled when I do virtually anything.
I've only had this thing 2 days and the performance has been worse than my old Nexus 6 because the cores keep getting capped very low. I was copying some backed up files over WiFi from my PC. It was lots of small files so it was running for 20 mins or so. When I was trying to do other stuff in the meantime it started to get really sluggish. I used to do exactly the same thing on my N6 and I could never tell that file copying was running in the background. I checked Kernel Auditor and it was showing temps ~50C and the cores were all being capped around 5-600MHz.
I've tried the stock ROM (stable and beta) and EPIC, and Lineage/RR. It seems to be a bit worse on the latter two (Antutu won't go above 100k, but it's like 140k on the MIUI ones) for some reason, but it's an issue on all of them.

gavin19 said:
Did you ever get any further with this? My phone idles at ~35C. I read a review that said throttling begins at ~40C so I get throttled when I do virtually anything.
I've only had this thing 2 days and the performance has been worse than my old Nexus 6 because the cores keep getting capped very low. I was copying some backed up files over WiFi from my PC. It was lots of small files so it was running for 20 mins or so. When I was trying to do other stuff in the meantime it started to get really sluggish. I used to do exactly the same thing on my N6 and I could never tell that file copying was running in the background. I checked Kernel Auditor and it was showing temps ~50C and the cores were all being capped around 5-600MHz.
I've tried the stock ROM (stable and beta) and EPIC, and Lineage/RR. It seems to be a bit worse on the latter two (Antutu won't go above 100k, but it's like 140k on the MIUI ones) for some reason, but it's an issue on all of them.
Click to expand...
Click to collapse
I have absolutely gotten further here I have managed to get throttling completely disabled actually.
The highest temp the CPU got to was 42 degrees Celsius after running Dolphin for 2 hours straight.
There is no need for thermal throttling on this device at all, hardware does a good enough job clearing the heat.
To stop the thermal throttling you need root access.
Use ES File Explorer from the play store and enable root access
Navigate to root and look for Folder system/etc and find file called thermal*******.*** ( I don't remember what it's called )
Cut this file from this location and paste it into another directory. I moved it to the sdcard for easy access. This way you can move it back if you do not like the results.
I have not experienced any overheating with this, also the battery doesn't drain like crazy. Performance is greatly improved with speed matching the Snapdragon 835 in a few scenarios.
Oh yeah restart the phone after you move the file so it can register the changes. Clock the cores appropriately with Kernal Auditor to make sure it can run at full blast when it needs to. On demand is way faster than interactive.

Cheers. I actually read the links you posted and renamed the conf file. After a reboot it was flying. The problem isn't so much the throttling, it's that mine idles at ~35C already, so it was getting capped when I did virtually anything. If I run Antutu 2-3 times in a row and check the temps in Kernel Auditor it can be in the low 60s. Using other temp apps (CPUTemp) it only shows about 45C tops.
It definitely does feel pretty damn warm since I don't use a case. but I'd love to know what the 'real' temp was. I tend to believe the lower one since I got the 45C warning when using EPIC and that's exactly what the app said. it was.
My Antutu scores increased substantially too. I was sometimes dipping down to 80-90k but I regularly get ~140k now, even 160k once. I know not to go by those scores but when I could never even get above 100k it was a concern.

gavin19 said:
Cheers. I actually read the links you posted and renamed the conf file. After a reboot it was flying. The problem isn't so much the throttling, it's that mine idles at ~35C already, so it was getting capped when I did virtually anything. If I run Antutu 2-3 times in a row and check the temps in Kernel Auditor it can be in the low 60s. Using other temp apps (CPUTemp) it only shows about 45C tops.
It definitely does feel pretty damn warm since I don't use a case. but I'd love to know what the 'real' temp was. I tend to believe the lower one since I got the 45C warning when using EPIC and that's exactly what the app said. it was.
My Antutu scores increased substantially too. I was sometimes dipping down to 80-90k but I regularly get ~140k now, even 160k once. I know not to go by those scores but when I could never even get above 100k it was a concern.
Click to expand...
Click to collapse
Yeah I'm thinking Xiaomi severely limits the thermal threshold to improve battery performance.
It's kinda all they care about in Japan for some reason.
Makes for some great performance improvements without the thermal settings being active.
This setting change is almost necessary of you need some heavy work done.
Glad you were able to get this changed.

i remove thermal_8896_blabla.conf...
Honestly device become too hot for me.... backplate change during my game (Battle Bay), very different sensation... reinstall immediatly *.conf... Finally i have decent perf and cold phone and very good battery life... no more...
My opinion !

lesscro said:
i remove thermal_8896_blabla.conf...
Honestly device become too hot for me.... backplate change during my game (Battle Bay), very different sensation... reinstall immediatly *.conf... Finally i have decent perf and cold phone and very good battery life... no more...
My opinion !
Click to expand...
Click to collapse
I think our best solution would be a modified .conf file that increases the thermal threshold as opposed to completely removing it.
Until this solution is available then this is our only choice.

i agree... i think with a ROM kitchen mayve this fil can be readable... anyway @ this point, we can only hope somebody dectypt this file to support various cool modification available over XDA...
Edit /
it seems HTC make same stuff... here it is a guideline ot example...
https://forum.xda-developers.com/showthread.php?t=2455596

lesscro said:
i remove thermal_8896_blabla.conf...
Honestly device become too hot for me.... backplate change during my game (Battle Bay), very different sensation... reinstall immediatly *.conf... Finally i have decent perf and cold phone and very good battery life... no more...
My opinion !
Click to expand...
Click to collapse
I had the same issue. I was getting 165k+ in Antutu but the phone would get uncomfortably warm when doing multiple passes, or gaming for extended periods.
In the Thermal section of Kernel Auditor, I enabled the Core Control and Temperature Throttle options and the phone still gets warm, but only as warm as you'd expect. I still get ~155k in Antutu consistently and the performance in general is still very smooth. I have the CPU governor set to ondemand, and the GPU governor to simple_ondemand. All other KA settings are default.
One other thing I always do is to reduce the Window Animation, Transition Animation and Animator duration scales to .5x (1x by default). It just makes the phone feel snappier in general. Settings > Additional settings > Developer options (MIUI-based).
I'm using the latest EPIC ROM. Using RR/LOS I couldn't replicate the same high Antutu scores consistently for some reason. I quite like MIUI after years of using CM and CM-like ROMS anyway.

already reduce animation x0.5... MIUI use a lot of this animation with complex and (very long calcul) then reduce this number make device seems much faster... anyway, u right...
A custom kernel for miui base... based on Dragon XIA exist in MI5 thread... only need to play a bit to make universal... with all source we can make somthing, but no have time to play with all tutorial available on XDA or Youtube...
Only way to make device much smoother and battery friendly or Perf/Warm destructor...

New galaxy note 4 prevent emmc issue

Is there anything I can do on a new galaxy note 4 to prevent the emmc issue happening in the first place?

There was some talk about preventing overheating?

ghostwheel said:
There was some talk about preventing overheating?
Click to expand...
Click to collapse
Do I need to lower the cpu ghz? Or run some kind of app or program?

Redrainz said:
Do I need to lower the cpu ghz? Or run some kind of app or program?
Click to expand...
Click to collapse
It might help to lower the CPU speed, but you need access to root and an app to tweak the values.
Avoid gaming which is very demanding on GPU and avoid gaming for long periods of time.
Search also in the Snapdragon forum a good kernel.
Also turn off the fast charging, this can heat too much the phone.

I created a script here. It works very good, it monitors the battery temperature AND all the CPU cores temperatures, and will automatically throttle the phone if temps are too high. You can even kill some apps if the temps are to high (not yet implemented).
The difference with Samsung DVFS or integrated temperature management of kernels is that this one monitors almost all CPU sensors and also the battery, all in complete combination, and it can be easily tweaked (rather than modding a kernel). No battery hog. You can enable USB fast charge, game, etc it will still prevent overheating.
Here is the solution to eMMC error
Hello everyone, I was pretty tired of the eMMC error, and I created a script that completely annihilate this error. This error is due to the phone heating up, and the fact that custom kernels (maybe even the original kernel) don't read the...
forum.xda-developers.com