Has anyone tried this app? If so have you noticed a difference? A friend told me about it but he has one for his galaxy s3. He told me to try the reg CPU sleeper app for dual core phones.
https://play.google.com/store/apps/details?id=com.eugene373.cpu.sleep
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I've used it but didn't really experience any difference. It basically only sleeps the 2nd core (3rd or 4th) when the screen shuts off. By default the phone should do this already. So it's pointless imo.
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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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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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.
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.
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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?
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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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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?
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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
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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
Anyone have any idea if the S4 Property has been overclocked on other devices (Nexus 4).
What frequency do you want to see the DNA pushed to?
P.S. This phone doesn't need it but why not, right?
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I used to push other processors, but I wouldn't even touch the processor inside this thing. Not even a thought in my head to overclock it. Even when I root it and flash another rom, I wouldn't touch the processor speed on this thing. Heck if I can underclock it to 1.2ghz and save battery life even more I would do that, lol
Agreed that it doesn't need it. But I'm curious what the limits of this prossesor are.
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Well usually with the ability to overcllock comes underclocking and profiles which is good maximize performance and battery which is always good
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Is there an app that allows to turn off lets say 2 or 3 cores when you need to save on battery life?
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Your CPU governor should normally take care of this automagically.
You could try to change the setting to something more 'conservative' at least, if your phone is rooted
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.
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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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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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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.