Ok so i have cm7.2 rc1 instaled with the new kernel. I've changed many different roms in the past to find out i cant overclock over 768 w/o the phone crashing. Anyway yesterday i searched the forum and found out i can overclock to more if i change the governor to userspace. It did work however i ran antutu benchmark and i saw the folowing.
At 864 governor userspace i get 1328 points.
At 844 governor userspace i get 1479 points.
At 825 governor userspace i get 1486 points
At 806 governor userspace i get 1675 points.
At 768 governor performance i get 1644 points.
So my question is could it be that antutu is wrong or is it some something buggy with the kernel or my device.
Edit. And also something that i noticed at 864 the cpu is what lowers the score drasticly and on 844 and 825 its the 2d graphics. I could post SS later cuz i dont have time now if neceserry.
baluuu said:
Ok so i have cm7.2 rc1 instaled with the new kernel. I've changed many different roms in the past to find out i cant overclock over 768 w/o the phone crashing. Anyway yesterday i searched the forum and found out i can overclock to more if i change the governor to userspace. It did work however i ran antutu benchmark and i saw the folowing.
At 864 governor userspace i get 1328 points.
At 844 governor userspace i get 1479 points.
At 825 governor userspace i get 1486 points
At 806 governor userspace i get 1675 points.
At 768 governor performance i get 1644 points.
So my question is could it be that antutu is wrong or is it some something buggy with the kernel or my device.
Edit. And also something that i noticed at 864 the cpu is what lowers the score drasticly and on 844 and 825 its the 2d graphics. I could post SS later cuz i dont have time now if neceserry.
Click to expand...
Click to collapse
reason is because of governor
Keep it at 806 and use whatever governor you'd like to (smartass2 if you want better battery life and high performance only when running apps). Don't set it any higher, as it could melt your phone and it'll definitely drain your battery a lot faster than it should.
Mine runs at 120 - 787 MHz and "ondemand" governor. If I set the upper limit to 806, the phone would crash when under load (e. g. benchmarking). The settings appear to save a bit of power compared to the "default" values, which is probable due to the so-called "race to idle"-effect. Basically "race to idle" means that higher clock frequencies will save power, since the processor gets the work done faster and can enter low-power states earlier than when running on lower clock frequencies, so if you can clock it even higher you should get even better battery life in the long run, even though this might seem counter-intuitive. Only disadvantage with these settings is that the phone lags a bit directly after booting and screen unlocking, but otherwise is really smooth.
My freequency is 245-864 and i have very stable work. But i have extended battarey (2200mah)
I made a function to calculate voltages for the Google Nexus
As a minimum voltage I found for stock 840mv always.
Best stable undervolt for everyone start from 800mv
840-1000-1090-1200mv
--> VOLTAGE = 733.9031364956^(0.0004200816*FREQUENCY)
REQ= MIN FREQUENCY = 800
Results in table:
MARGIN OFFSET APPLIED: -40mv
350MHz - 800mv
700 - 945
920 - 1040
1200 - 1175
1350 - 1254
1400 - 1281
1500 - 1338
1600 - 1388
Please test the settings and post back here. I believe these are stable for everyone.
I am experimenting to try pushing these into the CM10 repositories.
Not every phone under volts the same
Sent from my Galaxy Nexus using xda premium
The standard setting for 1190 MHz with Trinity kernel is 1150 mV, and it's solid as a rock for many users. That would fit right into your chart easily, so that's at least some confirmation of its accuracy.
I'll test 800 mV @ 307 MHz, and 945 mV @ 691 MHz. Those are lower than Trinity's defaults of 850 mV and 1000 mV for those frequencies.
No immediate problems but I'll leave it this way and see what happens.
Smallsmx3 said:
Not every phone under volts the same
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
that's why we could use the function:
VOLTAGE = 733.9031364956^(0.0004200816*FREQUENCY) + MARGIN
I am currently thinking about rewriting something for the Google Nexus
Let's disable Smart Reflex.
Replace it with stock voltages generated by this curve found by the frequencies the MPU runs at.
No need to program voltages!
Next is the availability of a voltage_margin value which users can modify with the android terminal emulator or a script.
How would you guys like this? This will make undervolting easier. Maybe little more limited but undervolting shouldn't take so much time in my opinion. You can't undervolt a Sandy Bridge CPU for each frequency separately. So why should phones.
Please let me know if you guys would like this feature. Then I will start developing.
GOALS:
- Making undervolting easy for everyone!
- Consumes less time!
I'd really appreciate and use this feature! I hate looking for Voltages again and again. Calculating them would be much more comfortable!
I use Franco.Kernel with Voltages from 230 to 1804 MHz and I tried to calculate the Voltages with your funktion within an excel-sheet. But my results are so damn far away from a realistic Voltage...
For example for 700MHz I get the Voltage "6,96"
I took this:
VOLTAGE = 733,9031364956^(0,0004200816*FREQUENCY)
put in the frequency:
VOLTAGE = 733,9031364956^(0,0004200816*700) = 733,9031364956 ^ 0,29405712 = 6,9608371895070636295467507606432
VOLTAGE = 6,9608371895070636295467507606432
Where's my mistake?
This sounds like a great idea, I hate trying to undervolt my phone cause I feel like I end up doing too much and start ruining the experience with ROMs so I stopped altogether.
I Like The Idea Of Making It Simple But every Single CPU Is Different And OC Differently And Will UV Differently. Even with Different Kernels And Roms You Will Have Different Results.
I Do Applaud Your Efforts but The Only Way To see How Low You Can Go Is To set It And Test It.
It Will Either Run Or It Won't, You Can't Really Harm Your CPU With UV'ing Like With OC'ing.
Sorry About The Capitals, Only Way My Phone Does It On Here I Guess
t-rip said:
I'd really appreciate and use this feature! I hate looking for Voltages again and again. Calculating them would be much more comfortable!
I use Franco.Kernel with Voltages from 230 to 1804 MHz and I tried to calculate the Voltages with your funktion within an excel-sheet. But my results are so damn far away from a realistic Voltage...
For example for 700MHz I get the Voltage "6,96"
I took this:
VOLTAGE = 733,9031364956^(0,0004200816*FREQUENCY)
put in the frequency:
VOLTAGE = 733,9031364956^(0,0004200816*700) = 733,9031364956 ^ 0,29405712 = 6,9608371895070636295467507606432
VOLTAGE = 6,9608371895070636295467507606432
Where's my mistake?
Click to expand...
Click to collapse
+1 ...But look awesone this idea!!
Cheers!
Great idea. Why you don't put directly a Google/Excel sheet?
So I installed the Perseus kernel and with Stweaks I overclocked the CPU at 1800Mhz.
Antatu = over 19000 points
Then I oced the GPU only to 800Mhz = 18400 Points
But when I decide to overclock both at maximum (1800/800Mhz) I get low score.
Even overclocking the CPU @ 800Mhz and CPU @ 1700Mhz = lower score than just CPU @ 1800Mhz
Is it because the CPU is throttling? What's wrong?
Dear cyber.bg,
Yes probably your cpu is throttling to 800 mhz from 1800 mhz because it reaches the temp of 80c...
To avoid throttling, you have to undervolt cpu when overclocking...
According to me , overclocking gpu over 533 is useless and also makes a lot of heat which push cpu to throttle ... Even gpu @640 mhz with higher voltages you will face freezes and lags...
So just overclock your cpu to 1800 mhz but with lower voltages... Most note 2 cpus can do 1800 mhz @ 1250mV... You can try to give -25 to other values from 1250 mV... 200 mhz @ 775 mv is also fine and no deep sleeps for me.
Dont overclock your gpu but you can undervolt it a little bit... gpu @533 is fine with 1050 mV...
With the right frequency and voltages for both cpu and gpu there will be no throttling so u can get real antutu scores... cpu @1800 and [email protected] with lower voltages, u can expect an antutu score between 19300 and 19800 depending on your rom, kernel and tweaks...
You can use stweaks app to overclock and undervolt...
You can use system tuner pro app to observe cpu temp and other data...
Hope all these helps...
Kind regards.
Sent from my Amiga Note
Thank you for your reply, it was very informative
Currently I am with Note2Core AS (the 1.92Ghz kernel) and I still have the throttling problem, even though my CPU temp doesn't go beyond 50C in Quadrant. But it is till throttling.
I've tried to edit voltage with SetCPU, Voltage Control Extreme and System Tuner Pro, but they don't stick - they just revert back to their original values (1425mV for 1.92Ghz) Stweaks says Sorry, no kernel support.
The interesting part is that in the beginning I managed to run 1-2 benchmarks without Throttling, but anything after that is throttled. Best scores so far:
Antutu: 19868
Quadrant - 7941
Do you know why I can't edit voltages and why it throttles even when CPU temperature is low?
Maybe it has to be plugged in and charging from the Wall?
Dear cyber.bg,
I am using perseus v29.1 kernel and it supports stweaks app... Also i can use voltage control or setcpu with this kernel but i prefer stweak since it has native support in the kernel.
First, 1.9 mhz @1425 mV is really high and thats why your cpu throttles...
I do max 1.8 mhz @ 1250 mV to avoid throttling... I did many test and voltages above 1250-1300 will bring throttling back. My cpu is stable @1250mV...
With quadrant cpu may not throttle because it is an outdated benchmark and i am sure it doesnt use all the cpu cores @100 percent...
Antutu is the solution to observe for throttling...
To observe temps and throttling, run both antutu and sytem tuner pro in split view...
Also i use a 4k video to push all the cpus to max and view video in floating windows so u can see all the data in system tuner pro while video is playing in floating window.
Lastly, my advice is dont go over 1.8 mhz @1250 mV for cpu and 533 mhz @1050mV for gpu... i am sure with these settings, u will have a stable note2 with no throttling and at its max performance...
Hope all these helps...
Kind regards.
Sent from my Amiga Note
Thank you again for this very knowledgeable post
I've used Perseus too. I even switch them daily while experimenting.
I put the Note2Core because I want to push the phone to its limits and get a really high benchmark scores. I've seen people reaching almost 9000 in Quadrant. And for Antutu I already got a really high score (19548), but if I manage to stabilize it at 1920Mhz I can get higher. But it throttles
And I still can't understand why it throttles? Some people say it's because of the high temperature, but how high is high? When I finish with a benchmark and go to look for the temp the highest I've seen is 50C. Is that high?
Also how do I run Antutu and System Tuner Pro in dual view? Their icons are not in the side menu that I open when holding the back button. How do I put them there?
Have you tested with more than 1800Mhz for the CPU? or more than 533Mhz for the GPU only? Can you post some Quadrant and Antutu screenshots so I can compare.
Thank you again
Dear cyber.bg,
Here is my antutu and quadrant results...
Wanamlite v2.1
Perseus v29.1
Cpu 1.8 mhz @1250mV
Gpu 533 mhz @ 1050 mV
Antutu ~19300
Quadrant ~7300
I have run both antutu and quadrant only one time...
By the way, cpu begins throttling when its temp reaches 80c so i am sure you hit this limit...
I have also tried 1920 and 2000 mhz with angelom kernel but because of throttling and so much heat, i had to return back to 1800 mhz with perseus kernel...
Kind regards.
Sent from my Amiga Note
2 questions:
1 - How can I see the maximum temp the CPU reaches?
2 - Did you have any successful test at 1920 and 2000 mhz without throttling?
cyper.bg said:
2 questions:
1 - How can I see the maximum temp the CPU reaches?
2 - Did you have any successful test at 1920 and 2000 mhz without throttling?
Click to expand...
Click to collapse
Dear cyber.bg,
1- The only way AFAIK is to use system tuner pro app... Be aware that apps like setcpu reports the BATTERY TEMP not the CPU TEMP...
2- Unfortunately NO since these speeds need min 1400 mV to be stable but throttling occurs immediately so no meaning to overclock...
Steps to observe throttling...
1- Download and install system tuner pro...
2- Download and install super video app and set it for software decoding not hardware decoding.
3- Grap a 4k video (life in the garden) from you tube with the tube mate app... i use this 4k video because it pushes all the cores to max with nearly full load in software decoding mode...
3a- Alternatively you can use antutu and system tuner pro app in split view to observe data... You have to flash this mod in able to add these app to multi windows list... http://forum.xda-developers.com/showthread.php?t=1953705
4- Play 4k video with super video app in a floating window...
5- While video is playing run system tuner pro app and touch to cpu button...
6- Now u should be able to see cpu data like temp,core speeds,load and also video in floating window all together
7- Observe the cpu temp and core speed... if the temp reaches 80c then core speeds down to 800 mhz which mean cpu is throttling... Try to undervolt some more to keep cpu under 80c but with stability of course...
As i said before, the max i can go without throttling is cpu 1800 [email protected] mV and gpu 533 mhz @1050mV... With these settings i can maintain stability, and full benefit from overclocking without throttling...
Hope all these helps...
Kind regards.
Sent from my Amiga Note...
I tried 1800Mhz @ 1200mV and it seemded stable. GPU was 533Mhz @ 1050mV
You also write that it starts to throttle at 80C - have you found out that yourself or it is in the specifications of the chip?
Here are 2 shots (these were before I tried lower voltages):
Samsung Galaxy Note 2 - Jelly Bean 4.1.1
Quadrant (Run Full Benchmark):
Note2Core Kernel
CPU: 1920Mhz, 1425mV
GPU: 533Mhz, 1050mV
AnTuTu (Пълен тест):
Perseus Kernel
CPU: 1800Mhz, 1250mV
GPU: 533Mhz, 1050mV
Geekbench 2:
Note2Core Kernel
CPU: 1920Mhz, 1425mV
GPU: 533Mhz, 1050mV
Dear cyber.bg,
Nice scores... Well done... Which rom ?
During my observations with system tuner pro, i have realized the throttling temp is 80c..
I think the throttling level can be configured via kernel so this is up to the kernel developers... i remember from note1 that there was thor kernel and with this kernel cpu was throttling @85c and to 1.4 ghz not 800 mhz if i am not wrong...
Kind regards.
Sent from my Amiga Note
Scores were with stock 4.1.1. I haven't installed any modified ROMs so far, cause I like the stock
Btw I'm afraid to use System Tuner Pro now, because last time I tried to uninstall it my phone froze, but I pressed the power button for 5 seconds and restarted. On the 2nd attempt to uninstall it the same thing happened, but after restarting the OS didn't want to load. I didn't have a backup or anything and had to reinstall everything. At least I put 4.1.2, so I'm making a Nandroid backup through CWM recovery now. That was a good lesson.
Have you tried 1.8Ghz @ 1200mV for daily use?
Dear cyber.bg,
Yes, i tried 1.8 @ 1200mV but i got frezees while playing some 2k and 4k videos so i decided to be safe and push it to 1250 mV even 1225 mV seemes stable for my cpu...
Kind regards...
Sent from my Amiga Note
My Note 2 is currently running 1956gHz @ 1412 volts.. I only ran into a problem when I locked the gpu @ 533mHz and used a stress test.
Tegrak Overclock Ultimate is amazing !
I also noticed tegrak's overclocking doesn't take effect until I open Setcpu..
Edit: Overclocked to 2gHz @ 1437 volts.. what is the repercussions to the volts being "too high?"
Sent from my GT-N7100 using xda premium
PROTOCHIP said:
Dear cyber.bg,
Yes probably your cpu is throttling to 800 mhz from 1800 mhz because it reaches the temp of 80c...
To avoid throttling, you have to undervolt cpu when overclocking...
According to me , overclocking gpu over 533 is useless and also makes a lot of heat which push cpu to throttle ... Even gpu @640 mhz with higher voltages you will face freezes and lags...
So just overclock your cpu to 1800 mhz but with lower voltages... Most note 2 cpus can do 1800 mhz @ 1250mV... You can try to give -25 to other values from 1250 mV... 200 mhz @ 775 mv is also fine and no deep sleeps for me.
Dont overclock your gpu but you can undervolt it a little bit... gpu @533 is fine with 1050 mV...
With the right frequency and voltages for both cpu and gpu there will be no throttling so u can get real antutu scores... cpu @1800 and [email protected] with lower voltages, u can expect an antutu score between 19300 and 19800 depending on your rom, kernel and tweaks...
You can use stweaks app to overclock and undervolt...
You can use system tuner pro app to observe cpu temp and other data...
Hope all these helps...
Kind regards.
Sent from my Amiga Note
Click to expand...
Click to collapse
Hi PROTOCHIP,
Can you send image files of your's STweaks settings? (for oc and for battery life)
Your experience is so reliable.
Thanks a lot.
Why can't I see any difference between the 533Mhz GPU and 800Mhz GPU on the GLBenchmark? I don't OC the CPU, I even tried to lock it to 1200Mhz to avoid thermal problems however I couldn't reach above 18 FPS in Egypt test. Normally it is 17, with 600 or 700Mhz it goes to 18 and then stays there.
When I compare the GPUs of the SGS3 and Note 2 there is %10 overclock on the Note 2 side and the results exactly indicates this. SGS3 scores 15 FPS, Note 2 scores 17 apprx %10 higher. From this comparison i take it as the results are linear with the clock speeds. I was also proving this theory by OCing the Note 1 to 400 Mhz and reacing a few FPS below SGS3 on GLBenchmark. So, without any problem Note 2 should score 30-31 FPS on 800 Mhz but that is not the case in real life. So I guess it is either never goes to 800 Mhz or thermal throttling happens during the test. Orrrr, maybe 1080p offscreen is not a good option to push-test our Mali-400s? But there is no other GPU benchmarks to push our devices like offscreen because of the 60 FPS lock.
What do you think about this? Is it possible to reach the 30 FPS level?
Can you guys tell if this is ok? Or can I still go lower.. I just eant fair speed with battery saving..
Thanks in advance
Sent from my GT-N7100 using xda app-developers app
Omega rom v9.1 + perseus alpha 29.1
Dear yerebakan,
Here are my settings for cpu and gpu... Hope all these helps... These are my lowest settings and stable values for my cpu right now... You can add +25 for both cpu and gpu to be safe then u can play with the values...
Phoniex Rom V2.1 and Perseus Kernel v29.1
CPU: 200 Mhz - 1800 Mhz ( Voltages over 1300 [email protected] Mhz makes a lot of heat and cpu throttles... )
1800 Mhz - 1250 mV
1704 Mhz - 1225 mV
1600 Mhz - 1150 mV
1500 Mhz - 1125 mV
1400 Mhz - 1075 mV
1300 Mhz - 1025 mV
1200 Mhz - 1000 mV
1100 Mhz - 1000 mV
1000 Mhz - 975 mV
900 Mhz- 950 mV
800 Mhz - 925 mV
700 Mhz - 900 mV
600 Mhz - 875 mV
500 Mhz - 850 mV
400 Mhz - 825 mV
300 Mhz - 800 mV
200 Mhz - 775 mV
GPU: 160 Mhz - 533 Mhz ( Speeds over 533 are useless since making a lot of heat and also gpu throttles... )
160 Mhz - 825 mV
266 Mhz - 875 mV
350 Mhz - 950 mV
440 Mhz - 1000 mV
533 Mhz - 1025 mV
Kind Regards...
---------- Post added at 02:38 PM ---------- Previous post was at 02:29 PM ----------
_delice_doluca_ said:
Why can't I see any difference between the 533Mhz GPU and 800Mhz GPU on the GLBenchmark? I don't OC the CPU, I even tried to lock it to 1200Mhz to avoid thermal problems however I couldn't reach above 18 FPS in Egypt test. Normally it is 17, with 600 or 700Mhz it goes to 18 and then stays there.
When I compare the GPUs of the SGS3 and Note 2 there is %10 overclock on the Note 2 side and the results exactly indicates this. SGS3 scores 15 FPS, Note 2 scores 17 apprx %10 higher. From this comparison i take it as the results are linear with the clock speeds. I was also proving this theory by OCing the Note 1 to 400 Mhz and reacing a few FPS below SGS3 on GLBenchmark. So, without any problem Note 2 should score 30-31 FPS on 800 Mhz but that is not the case in real life. So I guess it is either never goes to 800 Mhz or thermal throttling happens during the test. Orrrr, maybe 1080p offscreen is not a good option to push-test our Mali-400s? But there is no other GPU benchmarks to push our devices like offscreen because of the 60 FPS lock.
What do you think about this? Is it possible to reach the 30 FPS level?
Click to expand...
Click to collapse
Dear _delice_doluca_,
Same here and never had the chance to go over 18 fps with my note2 too... Overclocking over 533 doesnt help because of gpu throttling... In theory as you stated , we should go over 30 fps easily but in reality, this seems so far...
Kind Regards...
On behalf of the people who found this thread to discover your great insight and findings Protochip, thank you.
my cpu is running at 1.3ghz 1025mv however my phone reaches 67c true temp and throttles very easily any idea if this normal i cant play any 3d games unless im sitting near a fan or ac. Everyone says they throttle at 80c, i came to this thread from another post i had made. Im mostly playing
Nova 3 and mc4 .
nielo360 said:
my cpu is running at 1.3ghz 1025mv however my phone reaches 67c true temp and throttles very easily any idea if this normal i cant play any 3d games unless im sitting near a fan or ac. Everyone says they throttle at 80c, i came to this thread from another post i had made. Im mostly playing
Nova 3 and mc4 .
Click to expand...
Click to collapse
i found that the real throttling problem is a security protocol that Samsung roms have. When the battery reach 41C the cpu throttles (no matter if its only at 60C cpu temp)
i dont know how to deactivate that protocol...but if you want, try CM10.1 or any other AOKP or AOSP roms and you´ll se that there is no cpu throttling unless the cpu reach 80C.
you´ll need "stability test" app (cpu stress testing, and you can watch battery temp), and "system tuner" app (to watch live cpu temp during the stress test)
Guys can you tell me the best settings for a faster and lag free device? (battery is an issue too)
Min. freq? max freq? Governor? I/O scheduler?
MAX: 883mhz
MIN: 245mhz
GOV: SmartAssv2
I/O: Deadline
This is the best frequency for me in overall batterylife and performance
EddyGio said:
MAX: 883mhz
MIN: 245mhz
GOV: SmartAssv2
I/O: Deadline
This is the best frequency for me in overall batterylife and performance
Click to expand...
Click to collapse
and if u want play games like gta3 put the max at 921 is prety stable
thanks will try that:laugh:
Halo!
I am using the rom M'rage V2.1 and I have a really big battery drain
When the phone goes to high CPU frequency.
My setting in no frills CPU control:
MAX: 800 Mhz
MIN: 122 Mhz
Governor:smartassV2
I\O scheduler: noop
One week ago I bought A new original samsung battery so I don't think
This is a problem of the battery itself.
please help
Hi,
I'm using the same ROM an my settings are:
MAX: 672 Mhz
MIN: 122 Mhz
Governor:smartassV2
I\O scheduler: noop
I'm using it the whole day for browsing and videos on YT and my battery lasts for the whole day.
Maybe the downclocking helps you.
Do you have a lot of apps running?
le_android said:
Hi,
I'm using the same ROM an my settings are:
MAX: 672 Mhz
MIN: 122 Mhz
Governor:smartassV2
I\O scheduler: noop
I'm using it the whole day for browsing and videos on YT and my battery lasts for the whole day.
Maybe the downclocking helps you.
Do you have a lot of apps running?
Click to expand...
Click to collapse
Yes I think so..
I tried to change the rom to GIOPRO
I hope its will help but I will try your suggestion
Do you have "lags" with this OC?
Hi,
I don't have more "Lags" than before
In my opinion the small ram is the problem for those "Lags".
Maybe you could also try this ROM: http://forum.xda-developers.com/showthread.php?t=1654317
It's often recommended and you can install it with the Adrenaline Engine.