i want to disable both big core for best battery life. so my question is if i disable both big core then any chances for hardware failure? or something wrong with hardware?
Thanks
look4sky said:
i want to disable both big core for best battery life. so my question is if i disable both big core then any chances for hardware failure? or something wrong with hardware?
Thanks
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no problem i am using only the smaller cores but keep the maximum frequency to the highest and minimum frequency to the lowest and set interactive governer.
askmebro said:
no problem i am using only the smaller cores but keep the maximum frequency to the highest and minimum frequency to the lowest and set interactive governer.
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many many thanks for suggestion
look4sky said:
many many thanks for suggestion
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ur r welcome.if u r using radon kernel set highest frequency to 1478 and lowest as 400.
askmebro said:
ur r welcome.if u r using radon kernel set highest frequency to 1478 and lowest as 400.
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currently on stock kernel
so better to keep the big core on.but set the frequency low
why not use the hotplug option like in radon kernel?
In past experience, turning off the two big cores does not do much in increasing battery life. Besides, it will decrease performance of the device and put a larger load on the little cores.
askmebro said:
so better to keep the big core on.but set the frequency low
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can u suggest which frequency need to set in maximum?
Ivanlai said:
why not use the hotplug option like in radon kernel?
In past experience, turning off the two big cores does not do much in increasing battery life. Besides, it will decrease performance of the device and put a larger load on the little cores.
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thanks for sharing your experience. can you describe what is the use of hotplug?
hotplug turns off certain cores in your cpu when there is no need for the extra processing power, like when you are doing light tasks. It will turn on those cores temporarily so you get more power when doing intensive tasks.
Ivanlai said:
hotplug turns off certain cores in your cpu when there is no need for the extra processing power, like when you are doing light tasks. It will turn on those cores temporarily so you get more power when doing intensive tasks.
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oh it is really good option for save battry
Related
As I understand solution for "998 MHz with screen on" bug is found: http://forum.xda-developers.com/showthread.php?t=1225411&page=17#post16944722
We need to replace only one governor.
I don't want to play with different ROMs and kernels and I'm looking for simplest solution.
Is it possible to compile it as a module ("ondemand_mod" for ex.) and add it to stock ROM?
Or any other (simple) way?
Wrong section ...
Sent from my X10i using Tapatalk
Why wrong Section, this is Development to get the CPU Governor working correctly
Wolfbreak said:
Why wrong Section, this is Development to get the CPU Governor working correctly
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Exactly, this is the right section for such request.
However, I can't help but wonder: is this really a "problem"?
No offence to anyone, but I find that the phone is very snappy
when on max frequency... The big problem for me, would be if it
didn't go into Deep Sleep immediately after turning the screen off
and stayed at min frequency for an extended period.
When the screen is on (aka using the phone) I'd like it to be as FAST
as possible. That's the reason I use the minmax governor.
Anyway, again, I don't mean to argue with anyone, I am just
presenting my point of view.
My_Immortal said:
However, I can't help but wonder: is this really a "problem"?
No offence to anyone, but I find that the phone is very snappy
when on max frequency... The big problem for me, would be if it
didn't go into Deep Sleep immediately after turning the screen off
and stayed at min frequency for an extended period.
When the screen is on (aka using the phone) I'd like it to be as FAST
as possible. That's the reason I use the minmax governor.
Anyway, again, I don't mean to argue with anyone, I am just
presenting my point of view.
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Yes, it's really problem.
Higher frequency - higher power consumption. Moreover - with higher frequency CPU used with higher voltage so consumption is even more higher. So at 998 MHz CPU eats about 5 times more battery than on 246MHz.
With properly tuned governor I don't feel any real lags or slowdowns.
And, when screen is on CPU load is usually is lower than 20% at full frequency. So I don't want to waste my battery.
As I see it's possible to compile and use governor as module.
Could someone compile it? And assemble as xRecovery package?
Or point me where to read about compiling for arm, where to get tools and so on...
Karlson2k said:
Yes, it's really problem.
Higher frequency - higher power consumption. Moreover - with higher frequency CPU used with higher voltage so consumption is even more higher. So at 998 MHz CPU eats about 5 times more battery than on 246MHz.
With properly tuned governor I don't feel any real lags or slowdowns.
And, when screen is on CPU load is usually is lower than 20% at full frequency. So I don't want to waste my battery.
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The thing is, on 245 MHz, you can't get any kind of decent performance.
Try this: set the minimum and maximum CPU frequency with SetCPU to 245 and attempt to use the phone normally.
Also, you might be right about voltage, but if the CPU is forced to work on lower freqs when it actually needs higher, there's definitely stress and increased battery consumption.
My phone lasts for more than 24 hours and it's always at max frequency when the screen is on. No lag, no freezes, no drain.
I do agree that the ondemand governor might not function as expected but I fail to experience the actual problem. That might be just me though.
Xperia X10i via Tapatalk
My_Immortal said:
The thing is, on 245 MHz with high load, you can't get any kind of decent performance.
Try this: set the minimum and maximum CPU frequency with SetCPU to 245 and attempt to use the phone normally.
Also, you might be right about voltage, but if the CPU is forced to work on lower freqs when it actually needs higher, there's definitely stress and increased battery consumption.
My phone lasts for more than 24 hours and it's always at max frequency when the screen is on. No lag, no freezes, no drain.
I do agree that the ondemand governor might not function as expected but I fail to experience the actual problem. That might be just me though.
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There is no need to work on 245MHz as proper governor rise frequency automatically when it's necessary.
And really no stress for CPU to work an low frequency at full load. Moreover - CPU will consume more power at 500Mhz with 45% load than at 250Mhz with 95% load.
Sometime I use phone for navigation - long time with screen on and very low load. In this scenario battery drains very fast.
And last one - I like to have everything working properly. In case that I'll really need high frequency all the time I'll use other governor. I just want to have a choice.
I need a simple solotion for this too..I use z kernel and I found that Thego2s kernel fixed this problem..I was going to flash that kernel but think that has a bug and stoucks on logo ..can some one sayas a simple way?
Yes, I think a lot of people would prefer to use just small and simple fixes rather than replacing the whole kernel with a lot of nice but (personally) unnecessary features.
I am waiting for developers to release a fix for this problam
Just wondering if its bad to set the CPU to run at 1500 MHz all the time on the Xperia S? I am using CPU Master to set it to performance profile.
I don't think it's potentially harmful for your device.
However, it will consume much more of its battery, resulting in decreased battery life.
Possibly it will also generate more heat.
Besides, it is completely unnecessary to do so. Your phone will manage the speed depending on the required resources.
Hope this helps.
butters149 said:
Just wondering if its bad to set the CPU to run at 1500 MHz all the time on the Xperia S? I am using CPU Master to set it to performance profile.
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its complettley unneedet, and using just a lot of battery. performance is ust realy needet for Benchmarktests, all other things can managet via ondemand or conservative
Hey there, I have M4 Aqua freshly rooted. I changed the Governor in SetCPU to Performance on CPU and set it up to max frequencies on the 4 big Cores (1495MHz Min./Max.) and the 4 LITTLE cores (1113MHz Min./Max.). The CPU is Qualcomm Snapdragon 615 MSM8939. But the problem is that when I launch any CPU demanding program or game, the phone only uses the power-saving 4 LITTLE cores. Is there any way to lock the whole device only to the 4 powerful big Cores or to just adjust them to be active when in program/game?
Thanks alot for asnwering, I would be really happy with any solution.
Use Kernel Auditor to set the LITTLE cores and BIG cores to performance. The kernel that the M4 currently has is poorly optimized for handling tasks across it's 8 cores, so this is a temporary fix until it's (hopefully) updated.
The soc is the problem, even the moto x play have similar problems with performance
I have a script for disabling and locking 4 small cores, and performance is way better i will try to make it flashable zip and upload here
sergioslk said:
The soc is the problem, even the moto x play have similar problems with performance
I have a script for disabling and locking 4 small cores, and performance is way better i will try to make it flashable zip and upload here
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Does disabling the small cores affect the max performance much?
Morph' said:
Does disabling the small cores affect the max performance much?
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I tried to disable the small LITTLE cores today but the performance was decreased by at least 10% and the temperatures are still the same after 15-20 mins. of gaming - 70-80°C which lags the device.
Waldoss said:
I tried to disable the small LITTLE cores today but the performance was decreased by at least 10% and the temperatures are still the same after 15-20 mins. of gaming - 70-80°C which lags the device.
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Funny enough, I'm experiencing massive performance (in terms of smoothness and responsiveness) after disabling all 4 LITTLE cores. Use the OnDemand Governor for the big cores.
Still not working, it's probably the phone's problem. I mean the overheating, it's still around 70-80°C when gaming, the games and programs stutter.
I'm on OOS + SPHINX and using kernel auditor I've set the big frequencies to max at 2803mhz and the big governors to Performance, little frequencies and governors are unchanged. Will it damage my hardware in any way?
I think not.. coz it's supposed to work that maxed out.. and the only thing that will be affected is the battery life..
santiagoruel13 said:
I think not.. coz it's supposed to work that maxed out.. and the only thing that will be affected is the battery life..
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Okk thanks a lot bro
Not much of an effect as long as you didn't also set the minimum frequencies to max! (that will just eat up your battery and decrease its lifespan due to needing to recharge more often).
TBH, why are you messing with the CPU anyway? The 845 is so overkill for today's apps to the point where underclocking it to get better battery life is a very sensible thing to do especially if you're using Franco kernel.
Abd121 said:
Not much of an effect as long as you didn't also set the minimum frequencies to max! (that will just eat up your battery and decrease its lifespan due to needing to recharge more often).
TBH, why are you messing with the CPU anyway? The 845 is so overkill for today's apps to the point where underclocking it to get better battery life is a very sensible thing to do especially if you're using Franco kernel.
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I'm on sphinx kernel thought
theandroidguy said:
I'm on sphinx kernel thought
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That's... Not the point, my point was that the CPU is so powerful some Kernals under powers it to save battery without making a difference.
Abd121 said:
That's... Not the point, my point was that the CPU is so powerful some Kernals under powers it to save battery without making a difference.
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Ohh I see, well setting it to performance was consuming a lot of battery while I was playing PUBG so I reverted it to default settings, getting 10hrs SOT
Is it dangerous for Smartphone to set all CPU and GPU Frequency To Max For A Long Time.
If I Don't Care About Battery.
I Want Smooth Performance In Games
Chetankali said:
Is it dangerous for Smartphone to set all CPU and GPU Frequency To Max For A Long Time.
If I Don't Care About Battery.
I Want Smooth Performance In Games
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As long as you can have means to cool it! Im not saying its ok but it will decrease the lifespan of your device substancially, especially if you just leave it jacked up all the way
You may switch CPU governor to performance. Not necessary means it will use max. freq. all the time, use will give smooth performance for games.