Can someone tell which kernel gives best battery backup and stable enough?
Probably Squid Kernel with the lionfish governor, but that governor does compromise performance somewhat. However, with some tweaking, it is possible to achieve great battery life with good performance as well. See the link in my signature
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Hey what are the best battery saving + good on performance settings for air kernel e. G governor and scheduler and btw I'm using slim ics 3.5 so is there any better kernel for battery saving.
P. S I'm running lion heart noop atm with 100/1200 and not too sure if it's killing batteries or not..
Sent from my Crespo using xda premium
Drizzy xS said:
Hey what are the best battery saving + good on performance settings for air kernel e. G governor and scheduler and btw I'm using slim ics 3.5 so is there any better kernel for battery saving.
P. S I'm running lion heart noop atm with 100/1200 and not too sure if it's killing batteries or not..
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My suggestions:
use a lightweight, stockish kernel
---> slim ics is a fast, streamlined ROM and coupling it with a heavily modded kernel may only burden it with unnecessary overhead, so i recommend using stockish kernels like Franco's, _thalamus', or Pete's
play with the right governor-scheduler combo that works for you
---> if you're vent on using Air, you have to try out the different combinations that will work for you. Every phone is different and your phone has its quirks and strengths. When I used Air, I used a noop-lazy combo as this gives me the best battery life and performance when I need it, but this may not be true for you. So experiment and benchmark. This is what makes Android special: the power of choice and customizability.
Cheers!
go for the air kernel weekly 4.0
smartass v2 with noop scheduler and deep idle on .. works smooth and amazing battery life ..
rrohanjs said:
go for the air kernel weekly 4.0
smartass v2 with noop scheduler and deep idle on .. works smooth and amazing battery life ..
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+1 smartassV2/noop. New Weekly works also flawless.
rrohanjs said:
go for the air kernel weekly 4.0
smartass v2 with noop scheduler and deep idle on .. works smooth and amazing battery life ..
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What would you consider amazing battery life?
air 4.0 [Only Voodoo Colors (Original)]
with 400-1200mhz cpu freq ,deep idle on
smartassV2/ noop is not stable for my used.
have no reason, reboot random ...
try to ondemand dadeline
200-1000 cpu freq , deep idle off,
I think this is helpful
eeprtu said:
air 4.0 [Only Voodoo Colors (Original)]
with 400-1200mhz cpu freq ,deep idle on
smartassV2/ noop is not stable for my used.
have no reason, reboot random ...
try to ondemand dadeline
200-1000 cpu freq , deep idle off,
I think this is helpful
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Your overclock isn't stable then.
It's a not a "per use" thing. It is just as stable as ondemand with deadline.
I had my best experience with
ondemand (lower the up threshold to ~85% via nstools, than it's smooth as butter)
200-1000 Deep Idle ON (ensure that deep idle works properly with TOP=OFF)
Deadline
What are the best benefits of using a kernel like trinity or franco in terms of performances and battery life?
Sent from my Galaxy Nexus using xda app-developers app
Kernels: How do they work?
Lorenzo_9 said:
What are the best benefits of using a kernel like trinity or franco in terms of performances and battery life?
Sent from my Galaxy Nexus using xda app-developers app
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Well, it does depend some on the phone you are using as well as what kernel you are using. Kernels are complied from a variety of sources, with a plethora of options either baked in, or left out. Most kernels have features such as:
Speed tweaks
- Sysctl.conf / build.prop changes
- Overclocking
- Governors and I/O schedulers (How quickly the CPU scales to load, how the disk acts when reading)
- Ramdisk enhancements (Boot times, etc)
Battery enhancing tweaks
- Longer WiFi scan interval
- undervolting
- SBC
Features removed or added
- USB device support
- ext4 filesystem support
- color/contrast control
- App2SD
- Removal of debugging features
- HDMI out (if in place)
As far as Franco Vs Trinity, both remove the debug assets, but they differ in overclocking and that will be a huge deal in terms of battery life. The Trinity kernel overclocks both the CPU and GPU, at least on most of their kernels. This will give you more performance, but at a cost of battery life. The Franco kernel does not include undervolting either, which does save you power when the device is not being used, or not being used heavily.
I usually found that the Franco kernel gave me better battery life on my Evo 4G, but not every phone takes to a kernel the same way. Even if two of the same model of phone have the same kernel, one may work better than the other. You usually want to try a kernel for a day or two to let it settle in before you pass judgement on it.
Also, not kernel based per say, but one way to save battery in some situations and gain performance in others is to use a program like setcpu, or no frills cpu to make profiles that adjust the CPU governor and min/max clock speeds based on conditions.
Hai I'm wondering what's the best kernel for battery life is and if they're about the same which would be the best one
ninja85a said:
Hai I'm wondering what's the best kernel for battery life is and if they're about the same which would be the best one
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There is no "best" kernel as each one will behave differently depending on your usage. Battery life is about trading performance for longer usage... If you don't like to tweak the kernel, leave it stock... the stock kernel and ROM are quite well optimized. Other wise if you don't mind tweaking, try any kernel, maybe start with Squid, and a conservative governor (like lionfish, conservative, or powersave), set the CPU minimum to 200Mhz, and the CPU Max Frequency 1094Mhz, even take a core or two off line if you want to get real crazy. Remember that to make a significant difference in battery you need to make a noticeable change in performance.
acejavelin said:
There is no "best" kernel as each one will behave differently depending on your usage. Battery life is about trading performance for longer usage... If you don't like to tweak the kernel, leave it stock... the stock kernel and ROM are quite well optimized. Other wise if you don't mind tweaking, try any kernel, maybe start with Squid, and a conservative governor (like lionfish, conservative, or powersave), set the CPU minimum to 200Mhz, and the CPU Max Frequency 1094Mhz, even take a core or two off line if you want to get real crazy. Remember that to make a significant difference in battery you need to make a noticeable change in performance.
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Click to collapse
Ah cheers
I'm using kernel adiutor.
There isn't any option to change the GPU governor. If I change the CPU governor, will that in effect change how the GPU is governed?
There is the option of changing the voltage of the GPU, however. Can I safely underclock the GPU? Will it result in longer battery life?
Thanks
You can underclock CPU easily is the settings on stock rom. And yeah battery life is better but the device performance are affected.
Wondering if someone know any kernel that has energy "savings" parameters such as underclocking cpu(phone is quite fast itself and to be honest as a daily driver some users rarely use more than 30% of it's actual power), energy saving profil, underclocking gpu
Surely you can underclock stuff for yourself and after a restart an app to force those lower clocks but why not having a kernel that has all these so you'll have better battery life and be done with tweaking?
What are your thoughts people?