Is there any app that can turn off cores manually on the S3? 2nd core doesn't work and Cpu sleep seems very useless because I can't turn off cores while actually using my phone. An app like 2nd core for a quad core cpu would be greatly appreciated.
Thanks.
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pegasusq (the scheduler) doesn't turn cores on and off based on whether the phone's screen is on, but based on the CPU usage.
So it actually does everything you need by itself; if it's sitting idle it will turn off cores, whenever you need the horsepower it turns them back on.
Siyahkernel with Extweaks allows you to force it down to 2 or 3 cores, however I wouldn't do it. Rather play with ExTweaks to have it turn the other cores on when the load is higher.
If you don't want to use the extra cores, why didn't you just buy a galaxy s2 instead?
d4fseeker said:
pegasusq (the scheduler) doesn't turn cores on and off based on whether the phone's screen is on, but based on the CPU usage.
So it actually does everything you need by itself; if it's sitting idle it will turn off cores, whenever you need the horsepower it turns them back on.
Siyahkernel with Extweaks allows you to force it down to 2 or 3 cores, however I wouldn't do it. Rather play with ExTweaks to have it turn the other cores on when the load is higher.
Click to expand...
Click to collapse
Yeah but on my S2 I found that using 2nd core and turning it to single core usage it would give almost the same performance if I just boosted cpu by 200mhz. So do I need the siyahkernel or is there a core turn-off app for ninphettamin kernel?
Sorry for late reply I was abroad.
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krico said:
If you don't want to use the extra cores, why didn't you just buy a galaxy s2 instead?
Click to expand...
Click to collapse
I had the s2 but it feel in the toilet so GTFO?
Cheers.
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gjunki said:
I had the s2 but it feel in the toilet so GTFO?
Cheers.
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Click to expand...
Click to collapse
it was a legitimate question mate, no need to snap. On topic, the phone really should do that on its own and handles all the processes just fine. I don't think youd even WANT to have to manually change there core usage, that's a hassle. I'm sure there are plenty of great custom kernel s as the previous posts have mentioned that improve off of stock greatly though
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There is no need for installing anything that enables or disables cores, let android take care of that. Not all cores will be initiated when mailing, texting or calling. Only when they have to. It`s like using these stupid task managers that mess up android task management. Let it go unless you know what you are doing. No disrespect but only noobs come up with these ideas.
Pegasusq does all the work, users need not apply. (Seriously)
If you need to ask this question then you need to leave the system alone.
Stick to playing games
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Bumping here, but wow. Since when did XDA disencourage modding and developing?
MaXmeOliver said:
Bumping here, but wow. Since when did XDA disencourage modding and developing?
Click to expand...
Click to collapse
Custom Kernel. Limit cores and problem solved.
I use Perseus and Siyah with STweaks.
gjunki said:
Is there any app that can turn off cores manually on the S3? 2nd core doesn't work and Cpu sleep seems very useless because I can't turn off cores while actually using my phone. An app like 2nd core for a quad core cpu would be greatly appreciated.
Thanks.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
If you use a kernel with init.d suport you can flash this zip in the recovery.
It disable 3 core's when the screen is off.
Only for JB rom's!!!!
This application works for me https://play.google.com/store/apps/details?id=com.iamaner.CoreDisabler
STweaks - Siyah Kernel
Siyah Kernel will do the job with STweaks.
The last update for SGS3 GT-I9300:
http://forum.xda-developers.com/showthread.php?t=1709686
Related
http://forum.xda-developers.com/showthread.php?t=1297619
Has anyone tried this?
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akira02rex said:
http://forum.xda-developers.com/showthread.php?t=1297619
Has anyone tried this?
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Click to expand...
Click to collapse
Completely different architecture, and our device has no problems hotplugging in the second core when needed. If anything, it fires up the second core TOO soon and eats battery. Which is why airghi has a ton of patches that affect when CPU1 gets onlined... I've been working on cherry-picking some of them already.
Actually, those tweaks won't even work when the kernel is handling hotplugging of the second core.
I monitored the cores with system panel and noticed the second core comes alive just by touching the screen.
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akira02rex said:
I monitored the cores with system panel and noticed the second core comes alive just by touching the screen.
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Click to expand...
Click to collapse
Yup, as I said - it tends to fire up a little too rapidly.
The second core being enabled actually saves battery life. Differences between voltage and frequency (clock speed) are not linear, so by using two cores at 250mhz it uses less power than one at 500mhz. Using two cores is a good thing.
Hey,
I got the galaxy for some days now, I installed better battery stats and for some reason I see in the Cpu states the from 1ghz and above all the bars are empty, and like the phone don't use them.. I tried to play angry birds and some other games and try to do quadrant test to see if it reach the higher Cpu speed, but with no help.
The maximum is 1ghz.
Does anybody knows something about it? Maybe android doesn't support it or something :/
Thanks, Elad
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Verification as working with CPU spy https://play.google.com/store/search?q=cpu+spy
Elad92 said:
Hey,
I got the galaxy for some days now, I installed better battery stats and for some reason I see in the Cpu states the from 1ghz and above all the bars are empty, and like the phone don't use them.. I tried to play angry birds and some other games and try to do quadrant test to see if it reach the higher Cpu speed, but with no help.
The maximum is 1ghz.
Does anybody knows something about it? Maybe android doesn't support it or something :/
Thanks, Elad
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Click to expand...
Click to collapse
You have powersave enabled.
Go to settings -> powersave to set it.
Ok probably those frequencies are not used frequently so they became 0% in bbs. In Cpu spy I see them used for something like 16 seconds..
Thanks!
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K4P1, Wow you are right! Didn't notice it at all. Actually phone is much faster now... Thanks!!
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Hi, kinda the 3rd time i ask and no reply or whatsoever... Almost every time i open a high resolution game or some benchmark test, my CPU goes from 1800mhz (overclocked), to 800... this always happens when i am on performance governor... It's really frustrating to always open set CPU and fix it. Any help would be appreciated.
Best regards
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What kind of forum is this? 10 minutes passed and no view or answer whatsoever
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This is XDA Developers forum .
Not a fix my fnnn phone forum .
Go away silly child you deserve no help at all with that attitude .
jje
The answer is quite simple, but your attitude makes me not want to say anything.
You have a terrible attitude.
Sent from my Galaxy Nexus using xda premium
It is likely because of the CPU overheating. The CPU will throttle down whenever it exceeds its thermal limits.
I'm terribly sorry for replying four hours late. Do you want a refund for my incompetence?
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Sorry about my attitude, guess i overreacted but i kinda used all my money for this phone and was kinda worried
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DarkSofter said:
Sorry about my attitude, guess i overreacted but i kinda used all my money for this phone and was kinda worried
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Click to expand...
Click to collapse
Its like ballsofsteel said, its due to throttling because of heat.
Firstly you don't need the CPU at 1.8ghz, secondly you shouldn't use performance governor as it keeps the CPU at max freq all the time. Leave it on pegasusq and if you wanna overclock then 1.6ghz is enough.
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nodstuff said:
Its like ballsofsteel said, its due to throttling because of heat.
Firstly you don't need the CPU at 1.8ghz, secondly you shouldn't use performance governor as it keeps the CPU at max freq all the time. Leave it on pegasusq and if you wanna overclock then 1.6ghz is enough.
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Click to expand...
Click to collapse
I have tried to use pegasusq but i really like to have my phone as smoother as possible. Any other way to do it? I dont really have problems with battery draining because i keep a charger with me always...also one more question, what i/o would you suggest me? Sorry for wasting your time
Best regards
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DarkSofter said:
I have tried to use pegasusq but i really like to have my phone as smoother as possible. Any other way to do it? I dont really have problems with battery draining because i keep a charger with me always...also one more question, what i/o would you suggest me? Sorry for wasting your time
Best regards
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Just drop the up threshold in governor settings, its at like 85% stock so drop it to 70-75% or lower if you want. You can tweak those other settings to make the phone snappier. Pegasusq is important because it is a hotplug governor and turns cores on and off as they are needed. I always used deadline so that's what in would recommend.
Sent from my Nexus 7 using Tapatalk HD
nodstuff said:
Just drop the up threshold in governor settings, its at like 85% stock so drop it to 70-75% or lower if you want. You can tweak those other settings to make the phone snappier. Pegasusq is important because it is a hotplug governor and turns cores on and off as they are needed. I always used deadline so that's what in would recommend.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
Thank you very much, really appreciated, and sorry about acting like a kids before
Best regards
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Hi, so recently I flashed the Siyah Kernel on my S3 GT-I9300T. I downloaded STweaks so that I can do some tweaks to my S3. Then I went under CPU SCALING SETTINGS and changed the MAX CPU LOCK to single core (so that my S3 would run on 1 core to save more battery), but I was worried if it was going to do any damage to the core if it was under a lot of pressure (like playing heavy 3D games).
Thanks.
Mountain_Lion said:
Hi, so recently I flashed the Siyah Kernel on my S3 GT-I9300T. I downloaded STweaks so that I can do some tweaks to my S3. Then I went under CPU SCALING SETTINGS and changed the MAX CPU LOCK to single core (so that my S3 would run on 1 core to save more battery), but I was worried if it was going to do any damage to the core if it was under a lot of pressure (like playing heavy 3D games).
Thanks.
Click to expand...
Click to collapse
This is an insult to the phone... Just keep a charger with you, in your pocket. How can you play heavy 3D games with just a single core
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DarkSofter said:
This is an insult to the phone... Just keep a charger with you, in your pocket. How can you play heavy 3D games with just a single core
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Click to expand...
Click to collapse
You're insulting my old galaxy s
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Using a single core not only results in lags for obvious reasons but also in higher frequencies.
Since running multiple cores on low frequencies costs less power than running a single core on full frequency you are actually provoking adverse effects
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d4fseeker said:
Using a single core not only results in lags for obvious reasons but also in higher frequencies.
Since running multiple cores on low frequencies costs less power than running a single core on full frequency you are actually provoking adverse effects
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Click to expand...
Click to collapse
But will it do any damage to the core if I was using single core just for light use, like calling, browsing and messaging etc.? Thanks
no, even if you peg it to 100% it wont "damage" it. There's no point tho. Leave it at quad, power managers shut down the ones you dont need.
I'm just curious to see everyone's experience with the Faux kernel as opposed to the one that comes pre-installed.
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Capgun_Homicide said:
I'm just curious to see everyone's experience with the Faux kernel as opposed to the one that comes pre-installed.
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Click to expand...
Click to collapse
You have to read xda rules again.. Your free to use both of them and see it for your self without asking which is best in public!!
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Capgun_Homicide said:
I'm just curious to see everyone's experience with the Faux kernel as opposed to the one that comes pre-installed.
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Click to expand...
Click to collapse
I think they're both great you can't go wrong with either kernel. It's like choosing a lamborgini or ferrari, they're both awesome but it truly comes down to preference.
I think I got better battery with faux 31 but I under clocked and undervolted so I can't do a fair battery life test.
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SuperAfnan said:
I think they're both great you can't go wrong with either kernel. It's like choosing a lamborgini or ferrari, they're both awesome but it truly comes down to preference.
I think I got better battery with faux 31 but I under clocked and undervolted so I can't do a fair battery life test.
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Click to expand...
Click to collapse
I've noticed better battery life as well; not majorly, but noticeably. Although I feel it also has a little perfomance drop. Could just be me, though.
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Sorry for a question within a question, but what does undervolting/overvolting do? I've only ever tampered with MHz frequencies.
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Capgun_Homicide said:
Sorry for a question within a question, but what does undervolting/overvolting do? I've only ever tampered with MHz frequencies.
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Click to expand...
Click to collapse
Don't worry.
Undervolting is basically adjusting the voltages so the cpu uses less voltage aka electricity. It helps a little but it can make your phone unstable so watch out. Of you undervolt use the system tuner app on the market. You should definitely under clock if you want to save power too. When you undervolt be sure to underclock, and don't do it too low or your phone might freeze! That's why your shouldn't go so extreme on it.
Overvolting is basically adding more voltage to the cpu. There is no point in doing it for our amazes to be honest. It is already a battery hog. I guess it can help if you want to over clock a lot but there is absolutely no point in doing that.
In older legacy phones if you wanted to over clock because the cpu would be so weak, like 600mhz then you would have to overvolt to over clock to like 1ghz if you were lucky. Our devices are 1.5 ghz dual core and sense isn't THAT bad. There's no point in doing overvolt in this phone though.
PS, check out my rom in the development section.
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SuperAfnan said:
Don't worry.
Undervolting is basically adjusting the voltages so the cpu uses less voltage aka electricity. It helps a little but it can make your phone unstable so watch out. Of you undervolt use the system tuner app on the market. You should definitely under clock if you want to save power too. When you undervolt be sure to underclock, and don't do it too low or your phone might freeze! That's why your shouldn't go so extreme on it.
Overvolting is basically adding more voltage to the cpu. There is no point in doing it for our amazes to be honest. It is already a battery hog. I guess it can help if you want to over clock a lot but there is absolutely no point in doing that.
In older legacy phones if you wanted to over clock because the cpu would be so weak, like 600mhz then you would have to overvolt to over clock to like 1ghz if you were lucky. Our devices are 1.5 ghz dual core and sense isn't THAT bad. There's no point in doing overvolt in this phone though.
PS, check out my rom in the development section.
Sent from my HTC_Amaze_4G using Tapatalk 2
Click to expand...
Click to collapse
I just saw it in Venom Tweaks and was curious. The most I underclock to is 1 GHz; cuts down the CPU maximum by a third and doesn't hinder performance to much. What voltage would you recommend at that clock speed?
P.S. I have I plan on flashing it to try it out when I get WiFi access. Trying to cut down data usage since I don't have WiFi at home.
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Capgun_Homicide said:
I just saw it in Venom Tweaks and was curious. The most I underclock to is 1 GHz; cuts down the CPU maximum by a third and doesn't hinder performance to much. What voltage would you recommend at that clock speed?
P.S. I have I plan on flashing it to try it out when I get WiFi access. Trying to cut down data usage since I don't have WiFi at home.
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Click to expand...
Click to collapse
1ghz is perfect. As for voltage it really varies but I subtract 75 or 50 mv from all voltages.
PS. Oh nice, hope you get wifi soon then.
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