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Hi , I wanna keep on with custom rom but I wanna change my kernel , what's the best battery and performance kernel , what do u think?
Yay, awesome thread
Therollingstone said:
u know what , ive been using android for two years ( htc , samsung , lg ) and dont judge me as using this phone efficient , I have knowladge about computer and smartphone almost your age
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s2d4 said:
Yay, awesome thread
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Was your post *REALLY* necessary?
So, to answer your question:
I don't believe most of the kernels are for the stock ROM, with the exception of faux123's. I have followed faux over from multiple devices, and his kernels have always gotten the best battery life! It also doesn't hurt that you can get over 30 hours with over 3 hours screen on time with his kernel!
[Kernel][GSM][Hybrid-3.0.21]ICS4.0.2/3/4/UV,OC,TUN,CIFS,FIOPS,OTG(v013) [Feb-18]
Also, if its battery life your after as opposed to performance, you should go with the mainline version of the kernel.
KiNG OMaR said:
Was your post *REALLY* necessary?
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nope, just like the thread. his years of "knowladge" didnt help him.
I'm running on Franco 17.2 kernel (too lazy to update to 18.6) with the "stock" 4.0.4 rom and I'm seeing a pretty good battery life improvement over stock kernel.
I collected some metrics last night...
11h 6m on battery with 2h 48m display on time (auto brightness). Wifi was on almost the entire time.
I know people have gotten better with non-stock roms (4 hour display time over 16 hours), but with the stock rom, I'd say it's an improvement (used to only get 8-10 hours with negligible screen time).
I have been using franco 18.6 with the leaked stock 4.0.4 with good results so far, but have seen crashes on 4g/3g border areas. I can't really say if it's the best, because my sample size is a single custom kernel.
Used the app off the android market for OTA kernel updates; and am reluctant to try other kernels until more apps are available like that.
There really is not definitive answer on what the best kernel is for everyone.
Each person uses their phone differently and differing configurations will alter results as well.
Your best bet is to experiment yourself. Flash a kernel and let it run a couple days, trying to take note of how your on screen performance is, what you have run, also how the phone sleeps.
Then you move on and try the next, that is part of the fun!
s2d4 said:
nope, just like the thread. his years of "knowladge" didnt help him.
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The point you don't understand is I'm still enough humble to ask people decisions , The experience of users is the most reliable information for me , I havent been a big head and I wont , I still ask people that what's the best kernel with the stock rom
KiNG OMaR said:
Was your post *REALLY* necessary?
So, to answer your question:
I don't believe most of the kernels are for the stock ROM, with the exception of faux123's. I have followed faux over from multiple devices, and his kernels have always gotten the best battery life! It also doesn't hurt that you can get over 30 hours with over 3 hours screen on time with his kernel!
[Kernel][GSM][Hybrid-3.0.21]ICS4.0.2/3/4/UV,OC,TUN,CIFS,FIOPS,OTG(v013) [Feb-18]
Also, if its battery life your after as opposed to performance, you should go with the mainline version of the kernel.
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Thank you very much , I'm really happy with your post.
Therollingstone said:
The point you don't understand is I'm still enough humble to ask people decisions , The experience of users is the most reliable information for me , I havent been a big head and I wont , I still ask people that what's the best kernel with the stock rom
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Well, you obviously failed to realise the point, this kind of thread pops up everyday. So you failed search.
Its like a pair of shoes, you need to try and find what is best for you. Best kernel threads will always be retarded to ask because it is a preference, like an anus, everybody has one.
HI, i am new to this coming from iPhone..i have the AOKP rom for my atnt galaxy s3. I am wondering what is the deal with kernels? like what is the use of them? i am guessing the rom comes with it, but should i load the kernal like this one here:
http://forum.xda-developers.com/showthread.php?t=1756776
thanks
Kernals can change how the phone performs severely as well as add features. They can also affect battery life, speed, and how smooth your phone is.
Sent from my SAMSUNG-SGH-I747 using xda premium
Thank you for asking, and thank you for answering. I was also wondering this and was about to start my search here.
ScudMuffin said:
Thank you for asking, and thank you for answering. I was also wondering this and was about to start my search here.
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glad i am not the only one
crash822 said:
Kernals can change how the phone performs severely as well as add features. They can also affect battery life, speed, and how smooth your phone is.
Sent from my SAMSUNG-SGH-I747 using xda premium
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so for example since i am running the AOSP ICS rom, and there is AOSP kernel available for download, so i get that? and what is the order of installation? since i already have the rom installed and been using it
I suggest you stick to the kernel the rom's include until you understand fully what it is.
So to add to this, I learned many ROMs include a kernel. We don't always have to go out, install a ROM and a Kernel. In most cases it is if someone made some custom tweaks to a ROM kernel or stock kernel that you would reflash it. Please correct me if I'm wrong, still reading and learning.
To use a car analogy, I think of the phone hardware as the mechanical parts of the car, the ROM as the electrical system in a car and the kernel is the computer taking all the signals from the electrical system and telling the hardware what to do. Rooted ROMs can take advantage of connections already built into the phone but maybe turned off or disconnected in a stock ROM. Non-stock kernels can direct the traffic of electrical signals (like a stop light), change those signals, modify what hardware those signals control or even how the hardware behaves for a given signal. It may be a bit simplistic, but the best way I can explain it. A touch-wiz ROM and AOSP ROM will have different electrical connections, so they must have kernels made for those connections.
I recently bought a used Sprint Galaxy S3, it is the SPH-L710 model.
It works great, I like it, I got it rooted with no problem, and got CWM flashed to it and I'm getting ready to flash a ROM.
I've been searching forums and sites for about 2 days for the ROM I want to use.
I'm mainly looking for something that enhances my battery performance, the reason for this is when I first got the phone, I updated it to the 4.4.2 KitKat when I first turned the phone on and the battery life was terrible, like I would charge it to 100% and use it browsing the web for about 10 mins and lose sometimes upwards of 10+% within that 10 minutes.
I searched around and found 2 Apps that I am using right now, one is a battery doctor type thing, the other is an app called Battery Saver (root) it changes some stuff and is supposed to make battery life better, since I have started using these 2 apps my battery life has increased, but it still seems to drain a little fast. So I would like to try and find a ROM that perhaps has tweaked the battery life.
Does anyone have any opinions on battery life for any of the ROMs here that would work for my device, like perhaps which one that you have tried that extended your battery life? I know I could just try them myself, but I am hoping to save a bit of time and see if anyone has some input.
Also another quick question, is there a way to test my battery and see if its just bad? A friend mentioned that the battery could have just gone bad so I'd like to check that if possible.
A. S3s aren't known for their amazing battery life. My battery does not go very far either, talking on the phone, which I do a lot for work, gobbles up the battery immensely. (Like 100% to 80% in 30 minutes.) Web browsing is another battery hog.
B. ROMs are only going to do so much as far as extending your battery life. Just bear in mind -- the lighter the ROM, the less battery it'll likely consume.
You'll do more to save battery by flashing a custom kernel on top of a light ROM that'll allow you undervolt/underclock. But, you want to make sure you flash the correct kernel to the correct ROM base (e.g. Touchwiz kernel for Touchwiz ROMs, AOSP/CM based kernels for AOSP/CM based ROMs).
I personally use the DKP kernel found here in the S3 original development thread.
Be careful w/ underclocking and especially undervolting, as this can cause the phone to freeze up. It's also important to choose a governor that has a nice balance between performance and power savings. (I like the freelunch governor.)
Hope this helps.
Higgs_Boson said:
A. S3s aren't known for their amazing battery life. My battery does not go very far either, talking on the phone, which I do a lot for work, gobbles up the battery immensely. (Like 100% to 80% in 30 minutes.) Web browsing is another battery hog.
B. ROMs are only going to do so much as far as extending your battery life. Just bear in mind -- the lighter the ROM, the less battery it'll likely consume.
You'll do more to save battery by flashing a custom kernel on top of a light ROM that'll allow you undervolt/underclock. But, you want to make sure you flash the correct kernel to the correct ROM base (e.g. Touchwiz kernel for Touchwiz ROMs, AOSP/CM based kernels for AOSP/CM based ROMs).
I personally use the DKP kernel found here in the S3 original development thread.
Be careful w/ underclocking and especially undervolting, as this can cause the phone to freeze up. It's also important to choose a governor that has a nice balance between performance and power savings. (I like the freelunch governor.)
Hope this helps.
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Thanks!
That gives me an idea of what I should start looking for, and I'll check out the DKP kernel as well..
I just thought of another question I had, maybe you can help me with it too.
Since I'm running Android 4.4.2 on my device, would I need to find a 4.4.2 ROM to flash?
For instance could I use a 4.3.1 ROM on my 4.4.2 device?
vagabond007 said:
Thanks!
That gives me an idea of what I should start looking for, and I'll check out the DKP kernel as well..
I just thought of another question I had, maybe you can help me with it too.
Since I'm running Android 4.4.2 on my device, would I need to find a 4.4.2 ROM to flash?
For instance could I use a 4.3.1 ROM on my 4.4.2 device?
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It doesn't matter which Android version you decide to go with. Just avoid two things:
1. Do not flash an older bootloader than the one you are currently on (e.g. If you are currently on ND8, do not flash any older bootloaders like MK5 or MD4).
2. Do not flash any modems older than the one you're currently on. Your modem version can be found in Settings -->About Phone --> and the last three letter/number combination under "Baseband Version". Hint: The baseband version also tells you which bootloader/ROM you're on.
Doing either of these, will trip Samsung's KNOX security feature, tripping the kill-fuse, and suddenly, you'll have yourself a nice hard brick.
I know that probably sounds intimidating, but I assure you if you avoid those two things, you can flash any D2LTE ROM you please. (D2LTE ROMs will work with the Sprint S3.)
idk man the batter life of my S3 lasts 2 days where my Infuse 4g would last less then one with a new battery.....so by far the best battery life I've had in a while
Higgs_Boson said:
It doesn't matter which Android version you decide to go with. Just avoid two things:
1. Do not flash an older bootloader than the one you are currently on (e.g. If you are currently on ND8, do not flash any older bootloaders like MK5 or MD4).
2. Do not flash any modems older than the one you're currently on. Your modem version can be found in Settings -->About Phone --> and the last three letter/number combination under "Baseband Version". Hint: The baseband version also tells you which bootloader/ROM you're on.
Doing either of these, will trip Samsung's KNOX security feature, tripping the kill-fuse, and suddenly, you'll have yourself a nice hard brick.
I know that probably sounds intimidating, but I assure you if you avoid those two things, you can flash any D2LTE ROM you please. (D2LTE ROMs will work with the Sprint S3.)
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Wew! Thanks for that info, you may have saved me from a terrible mistake lol.
One of the ROMs I was looking at was using the MD4 bootloader, so that would have been a no-no xD
Thanks a lot for all your help, I learned a few things from it, epspecially about the bootloaders and modems having to match, I had no idea about that. Now that I know that, it opens up a few more possibilities for ROMs I can use!
vagabond007 said:
Wew! Thanks for that info, you may have saved me from a terrible mistake lol.
One of the ROMs I was looking at was using the MD4 bootloader, so that would have been a no-no xD
Thanks a lot for all your help, I learned a few things from it, epspecially about the bootloaders and modems having to match, I had no idea about that. Now that I know that, it opens up a few more possibilities for ROMs I can use!
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Fun fact: The bootloaders and modems didn't always have to match.
Samsung wanted to be able to market their devices to business entities, and in order to do that, they developed the KNOX security feature.
Once it's on your phone, it's not coming off. It matters to corporate security policy people, because they want devices that aren't going to be compromised if someone tampers with them.
And, as you can see, the wrong kind of tampering makes the phone completely unusable and unrecoverable.
Higgs_Boson said:
Fun fact: The bootloaders and modems didn't always have to match.
Samsung wanted to be able to market their devices to business entities, and in order to do that, they developed the KNOX security feature.
Once it's on your phone, it's not coming off. It matters to corporate security policy people, because they want devices that aren't going to be compromised if someone tampers with them.
And, as you can see, the wrong kind of tampering makes the phone completely unusable and unrecoverable.
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Right now I'm sort of leaning towards LiquidSmooth, Quantam4, or Tribute ROM, still sort of looking around though.
If you don't mind me asking @Higgs_Boson, which ROM are you using?
Also, to the other poster, my mothers GS3 is the same way, hers will last upwards of a day and a half, then again she doesn;t use hers for much, while I'm on mine like a computer lol.
vagabond007 said:
Right now I'm sort of leaning towards LiquidSmooth, Quantam4, or Tribute ROM, still sort of looking around though.
If you don't mind me asking @Higgs_Boson, which ROM are you using?
Also, to the other poster, my mothers GS3 is the same way, hers will last upwards of a day and a half, then again she doesn;t use hers for much, while I'm on mine like a computer lol.
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Right now, I'm on CM11.
I usually switch between two that are my favorites:
CyanogenMod or Paranoid Android.
If you want an all-in-one, there is always PAC-ROM, which includes Paranoid Android, AOKP, and CM all under the same roof. (But then, we get back to that thing about light ROMs.)
issmal out
Higgs_Boson said:
Right now, I'm on CM11.
I usually switch between two that are my favorites:
CyanogenMod or Paranoid Android.
If you want an all-in-one, there is always PAC-ROM, which includes Paranoid Android, AOKP, and CM all under the same roof. (But then, we get back to that thing about light ROMs.)
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I completely overlooked CM
Is CM11 compatible with the DKP Kernel you were telling me about?
yep
Yes it is. I'm that combo at the moment
im currently running wicked X 8.0
6th_Hokage said:
im currently running wicked X 8.0
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I'm in the process of d/ing that right now. U like it?
jbnorton0524 said:
I'm in the process of d/ing that right now. U like it?
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personally yes after i replace the system UI with the Stock ND8/NDC one and same with the TW Framework and TWframework-res.apk and use the Stockish theme for it.....i like the stock look what can i say but im using xposed at the same time for little things here and there but if you don't want to replace somethings and want it to work 100% use the PCB theme that it comes with.......but either way its pretty smooth and fast and the battery lasts for 2 days with some gaming and listening to music with viper4android installed and making calls and texting the one thing that i would say drains my battery is watching videos but you'll be satisfied
Wow you arent joking. This is one of the best ive seen lately. Nice.
jbnorton0524 said:
I'm in the process of d/ing that right now. U like it?
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Wicked X, Tribute and Conquest Singularity are all 3 very good ROMs with pretty fair battery life. As stated, Kernal Settings do make a world of difference! I'm on Singularity with latest KT747 Kernal and love it :]
Cm 11 or paranoid
Has anyone noticed this? I have been using stock rom since the start but after 7.0 update the battery drain by Android System is high. I tried different ROM's that are based on Stock ROM, there also the story is same. I dont know about AOSP based ROM's as i havent tried them due to camera quality. Is there any solution to this? Like if it is related to kernel ?
TIA
Your answer lies in this post:
https://forum.xda-developers.com/showthread.php?t=3034811&page=5
sarus_b said:
Your answer lies in this post:
https://forum.xda-developers.com/showthread.php?t=3034811&page=5
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I read what you linked, I don't even think it's related to my post.
anshmiester78900 said:
Has anyone noticed this? I have been using stock rom since the start but after 7.0 update the battery drain by Android System is high. I tried different ROM's that are based on Stock ROM, there also the story is same. I dont know about AOSP based ROM's as i havent tried them due to camera quality. Is there any solution to this? Like if it is related to kernel ?
TIA
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Depends on how you use your phone day in and day out. If you are using the phone as it was intended to be used (like a phone), then you would expect there to be a system drain component; if there wasn't, you've basically got your phone on airplane mode with every feature and settings turned off. I don't think the system drain is a stock rom issue, it's basically a part of every Android OS. No it is not a kernel issue (unless the kernel is poorly written, usually not the case with stock or any of the other kernels out there for the OP3).
And what do you mean by battery drain is high? You mean it's listed as one of the top 3 on the battery info screen? That screen is basically meaningless and is relative to all other apps/processes running on your phone. If you work 8 hours a day and you don't touch your phone once, I will guarantee you that Android System will be 1 or 2 on that list (next to Google Services). If you watch movies saved on your phone for 6 hours straight, I can guarantee you that Screen will be at the top of that list. That battery info screen is there to give you a rough idea of what's using up the juice.
The phone still has the battery to last you a full work day on a single charge (unless you're a heavy gamer) with email sync, texting, phone calls, music, minimal social media (many of these apps are battery hogs). If you run low early, Dash Charge is quite amazing.
anshmiester78900 said:
I read what you linked, I don't even think it's related to my post.
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My bad. I was under assumption you would find and understand something. You are to naive to understand it. No offense intended
sarus_b said:
My bad. I was under assumption you would find and understand something. You are to naive to understand it. No offense intended
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He's having Android System battery drain how exactly is that link related? You clearly didn't understand what you read for you to assume that's the answer. Stop trying to act smart
Sent from my ONEPLUS A3000 using Tapatalk
sarus_b said:
My bad. I was under assumption you would find and understand something. You are to naive to understand it. No offense intended
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if you think something related to his problem is in the post then just explain it to him and dont act like an arrogant smartass.
anshmiester78900 said:
Has anyone noticed this? I have been using stock rom since the start but after 7.0 update the battery drain by Android System is high. I tried different ROM's that are based on Stock ROM, there also the story is same. I dont know about AOSP based ROM's as i havent tried them due to camera quality. Is there any solution to this? Like if it is related to kernel ?
TIA
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Click to collapse
I fully concur with your observation since I had also experienced the same issue when I switched from stock OOS MM to stock OOS N. I don't know what causes it. It was bad and I was forced to go back to MM till I found Vertex OS. It is Nougat and battery life is amazing. It is also stock ROM based.
Some may complain that Vertex has no gimmicks but I am satisfied with what it has to offer. Try it.
tnsmani said:
I fully concur with your observation since I had also experienced the same issue when I switched from stock OOS MM to stock OOS N. I don't know what causes it. It was bad and I was forced to go back to MM till I found Vertex OS. It is Nougat and battery life is amazing. It is also stock ROM based.
Some may complain that Vertex has no gimmicks but I am satisfied with what it has to offer. Try it.
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I have noticed the same thing since the second nougat beta released around December 15th. It is there even on debloating, trying custom kernels, disabling apps, etc. Then I changed to lineageOS, and surprisingly even on it Android System was on top. Till now I haven't come across any solution.
I had the same issue. It was due to OTG/usb host interrupts for me. Try better battery stats to find out what is causing it.
I was wondering which one is better overall? I prefer balanced performance and battery, but slight more preference to battery,without lag in everyday use.
SaYuJ said:
I was wondering which one is better overall? I prefer balanced performance and battery, but slight more preference to battery,without lag in everyday use.
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Dont you dare post "vs." over here.
People are gonna be like "OoH hOw DaRe YoU cOmPaRe ThE hArDwOrK tHaT tHe DeVeLoPeRs PuT iN"
And some MOD is probably gonna ban you.
Btw accoring to your requirements, insigniuX is better.
LeekGeek said:
Dont you dare post "vs." over here.
People are gonna be like "OoH hOw DaRe YoU cOmPaRe ThE hArDwOrK tHaT tHe DeVeLoPeRs PuT iN"
And some MOD is probably gonna ban you.
Btw accoring to your requirements, insigniuX is better.
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Ohh ?
Btw thanks
Can you tell the diffrence betwen flashing a rom or kernel..... and if i did flash a new kernel what gonna change on phone ?
tiziano-petrov said:
Can you tell the diffrence betwen flashing a rom or kernel..... and if i did flash a new kernel what gonna change on phone ?
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If we install a different rom the entire look of your phone may change, and we have to wipe data to install a different custom rom, but kernel doesn't change anything in the ui, its changes occur under the hood, kernel may enable us to overclock or underclock our cpu it may make our phone more snappy and increase battery performance, and some other feature like sound control and charging speed etc(controlled by a kernel manager such as kernel Adiutor) Also we don't have to wipe data to install kernel, but the improvements are not always a promise