I'm wondering, will it be possible to develop a kernel for seed devices that supports Undervolt for the CPU? (Like faux or elementalx) It can benefit great battery life with undervolting without losing performance, even with just a few steps down and it can help with regards to Screen On Time and heating.. Is it possible?
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This is a question-come-guidance request to the senior/experienced members.
> Is it possible for OB to simply just root and then Overclock?
> If not, then why?
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I mean, in some devices, after usual rooting, we can use applications like SetCPU or similar to set the CPU frequency and voltage. But while browsing some websites, i came to know that it is not possible in case of OB due to some chipset issue or something like that. Is it true? Or there's any other reason? .... I will really appreciate if someone with knowledge can give a little technical info about this.
first of all ,you need init.d script support
you can flash quasar kernel to solve it , and then ,write some code into init.d
done
one of my friend said that he underclocked his cpu with this: https://market.android.com/details?id=com.antutu.CpuMasterFree&hl=en
he is using rooted stock rom. without quasar kernel.
is it possible?
just like you said,he's underclock,not overlock
we all can set lower frequence via setcpu or other applications,but can not overlock
Thanks for the replies. I am quite pleased to know we can at least underclock P970 easily.
I mean, i needed to guide one of my friend who is no much knowing of custom ROMs, and i culdn't risk to advise him for NOVA. But, this underclocking is still easy and sufficient, since all he was worried about was to have a long battery life. And i just hope, even without the useful tweaks of NOVA v8, a simple underclocking can improve sufficient battery life. .
( if any other "not-so-much-geek-and-easy-to-understand/employ" ways you can suggest me to extend battery life, i shall appreciate. )
Which kernels are you guys using, specifically with THS build 15? Is there noticable difference in day to day applications by flashing one of these kernels? What benefits do they offer (responsiveness)?
Also, how does overclocking effect the phones battery life, and heat output? I would assume a 300mhz overclock would produce a significant amount of heat and drain battery much quicker.
Can somebody bring me up to speed
Cheers
i heard that DEVIL 14.2 is good with cm9 build 15...... and yeah...of course.....overclocking will drain your battery muck quicker.... but u can under-volt to save battery life though undervolting stability depends on your kernel. for overclocking and undervolting glitch is better ( as far as i observed ) but personally i like devil kernel.
zamiurratul said:
i heard that DEVIL 14.2 is good with cm9 build 15...... and yeah...of course.....overclocking will drain your battery muck quicker.... but u can under-volt to save battery life though undervolting stability depends on your kernel. for overclocking and undervolting glitch is better ( as far as i observed ) but personally i like devil kernel.
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Thanks for the response! While I'm an avid PC overclocker, I don't have to worry about battery life there , I think I will keep my 1000mhz and battery duration where it is. I'll likely try the Devil's kernel just waiting on a couple more responses
What's the big advantage of using another non stock kernel?
The main one I'm seeing is overclocking.
Overclock, underclock, voltage change, different governor, SD changes.
Pretty much, more customization. You could have more battery life or better performance.
Hello,
So im willing to try some kernels for my Nexus to see whats the best for my needs.
I want to compare the stock kernel to the leankernel, franco kernel and the ElementalX kernel.
Comperasion criterias:
1. Faster booting
2. Fastest performence as possible without hurting battery life in comparison to the stock kernel.
3. Better battery life as possible without hurting performence in comparison to the stock kernel.
So how can i compare those kernels? should i just flash each kernel and use AnTuTu Benchmark and Better Battery Stats on each one of them?
Choosing the best kernel for me is to give a try for each one and see for myslef - i know that. But i want to see the stats in front of me to reasure im picking the best one and also beacuse iv'e used the chroma and euphoria roms which use leankernel and franco kernel but im not sure the difference is noticeable by eye.
Also, feel free to share your current kernel and opinion about it
torecdude said:
Hello,
So im willing to try some kernels for my Nexus to see whats the best for my needs.
I want to compare the stock kernel to the leankernel, franco kernel and the ElementalX kernel.
Comperasion criterias:
1. Faster booting
2. Fastest performence as possible without hurting battery life in comparison to the stock kernel.
3. Better battery life as possible without hurting performence in comparison to the stock kernel.
So how can i compare those kernels? should i just flash each kernel and use AnTuTu Benchmark and Better Battery Stats on each one of them?
Choosing the best kernel for me is to give a try for each one and see for myslef - i know that. But i want to see the stats in front of me to reasure im picking the best one and also beacuse iv'e used the chroma and euphoria roms which use leankernel and franco kernel but im not sure the difference is noticeable by eye.
Also, feel free to share your current kernel and opinion about it
Click to expand...
Click to collapse
1. Stop watch
2 & 3: Not really possible. To give to performance, takes from battery and vice versa. You give 1 to performance, you take 1 from battery. There are no magic settings that allow you to give 1 to performance and only take 0.5 from battery.
I hope the attached image helps to explain that
There are also other things to factor like the governor, scheduling, hot plug support , etc.
For example elementalX has its own Governor and I'm not sure it will even default itself to be used. You will need some type of kernel configuration tool to enable it .
There is also how YOU are using your phone. Just too many variables to consider
Sent from my Benzo'd Google N6 on VZ
DebianDog said:
There are also other things to factor like the governor, scheduling, hot plug support , etc.
For example elementalX has its own Governor and I'm not sure it will even default itself to be used. You will need some type of kernel configuration tool to enable it .
There is also how YOU are using your phone. Just too many variables to consider
Sent from my Benzo'd Google N6 on VZ
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Click to collapse
Yeah for sure.
I always say that because kernel x performs more than kernel y out-of-the-box, it doesn't mean you can't set kernel y up to perform like x... It's just a trade off whichever way you go.
My personal advice is find a kernel that has the features you want, then configure the governor with the bias you want to see. I always go for Elementalx. @flar2 sets the best balance of battery and performance in my opinion, though I always alter my settings to suit my needs anyway
Hiii Guys I'm Currently Using Blisspop V2.2 It Was An Awsome ROM Except Its Battery Performance, Since The Xiaomi Released Kernel Sources i've been observing xda mi3 section there are alot of custum kernels thanx to all devs,and i did not try any one so far, so my question is especially by considering Blisspop rom is there any best kernel which improves the battery performance in mi3?? please suggest me and help mee waiting for ur valuble suggestions..!!
Thanku in advanced..!!
Stuxnet+ it is!
balu1191 said:
Hiii Guys I'm Currently Using Blisspop V2.2 It Was An Awsome ROM Except Its Battery Performance, Since The Xiaomi Released Kernel Sources i've been observing xda mi3 section there are alot of custum kernels thanx to all devs,and i did not try any one so far, so my question is especially by considering Blisspop rom is there any best kernel which improves the battery performance in mi3?? please suggest me and help mee waiting for ur valuble suggestions..!!
Thanku in advanced..!!
Click to expand...
Click to collapse
I personally prefer the Stuxnet+ kernel latest stable version as my daily driver!
hvashar said:
I personally prefer the Stuxnet+ kernel latest stable version as my daily driver!
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ook but can yu confirm that would be useful in improving battery performance in blisspop??
balu1191 said:
ook but can yu confirm that would be useful in improving battery performance in blisspop??
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Click to collapse
I'm using the Stuxnet kernel too - though your question is impossible to answer. It really depends on your use, combined with the governor/min-max processor speeds etc. Most of the kernel variables are accessible for all custom kernels.
Also, what is battery performance? Days on standby, or hours of screen'on time? Browsing or gaming..?
It's very easy to limit battery consumption by reducing screen brightness, running a conservative governor, not using the upper available frequencies etc.
I'd say that they make a bigger difference than swapping between stable kernels.
paul c said:
I'm using the Stuxnet kernel too - though your question is impossible to answer. It really depends on your use, combined with the governor/min-max processor speeds etc. Most of the kernel variables are accessible for all custom kernels.
Also, what is battery performance? Days on standby, or hours of screen'on time? Browsing or gaming..?
It's very easy to limit battery consumption by reducing screen brightness, running a conservative governor, not using the upper available frequencies etc.
I'd say that they make a bigger difference than swapping between stable kernels.
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here in my view battery performance means Screen On Time..!!!
A search would have answered this. There is no best. Try them each out for yourself.