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[Q] What is the best Kernel for Nexus S?

What is the best kernel for NS in terms of:
performance? (but drains battery faster)
Battery saving?

poging22 said:
What is the best kernel for NS in terms of:
performance? (but drains battery faster)
Battery saving?
Click to expand...
Click to collapse
There is no best kernel. All the threads asking receive the same answer, that is that it all comes down to personal preference. Try them all and see what you like best.

063_XOBX said:
There is no best kernel. All the threads asking receive the same answer, that is that it all comes down to personal preference. Try them all and see what you like best.
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Click to collapse
yow dude! so based on your experience, which kernel do you prefer?
I tried Trinity, drains my battery faster than usual.

I've been using Matr1x, but some people have had issues. That's why I really can't recommend anything other than that you try a few and see what works best for you.

No issues with Matr1x dude...
Op, what rom u on?
Sent from my Nexus S using XDA App

mathkid95 said:
No issues with Matr1x dude...
Op, what rom u on?
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
I didn't say there were anything wrong with the kernel (I wouldn't use it myself if that were my belief) , I simply stated the fact that some people have run into some issues (S.O.D., etc.).

what's SOD?

qtwrk said:
what's SOD?
Click to expand...
Click to collapse
Sleep of Death, phone goes into sleep mode and freezes. Raising the Voltages helps.

I have tried every kernel out there & have had trouble in some form with all of them, except for the Glados Kernel. Rock solid stable, & a nice balance of performance / battery life. Using NStools allows you to get the most out of the kernel. I use it with live OC set at 105, & the lazy governer. This is what works well for me, it may differ for your phone.
Sent from my Nexus S 4G using xda premium

Yes kernels run differently on different phones
Sent from my Nexus S using XDA App

poging22 said:
What is the best kernel for NS in terms of:
performance? (but drains battery faster)
Battery saving?
Click to expand...
Click to collapse
Thats a adventure you have to take alone
in all seriousness you gotta try out Trinity =]

Check out the kernels in this thread:
http://forum.xda-developers.com/showthread.php?t=1283031
The nice thing about it is the availability of the 1320MHz frequency (if needed), yet you can run an undervolted setting most of the time and enjoy great battery life.
Most other kernels seem to be either fast or good on battery, here you get both in one package. Give it a test drive!

irizwan said:
Thats a adventure you have to take alone
in all seriousness you gotta try out Trinity =]
Click to expand...
Click to collapse
I'm using Trinity now with 1.54 OC. It's snappy but drains battery fast.

A millionth time I've seen such a thread, and a millionth time I say the same - "Its your own personal choice..."
Not angry or such but just trying to make a joke...
I'm pretty much happy with the Matr1x Kernel, Netarchy dies on me, GLaDos is pretty good too, Trinity dies on me too...

by the way, MIUI has its own kernel? When you flash MIUI, what kernel do you get in default?
how about CM7?

What's the difference between Cfs and Bfs?
Sent from my Nexus S using XDA App

Yeah can someone answer? What's the difference?

read this..
http://www.cs.unm.edu/~eschulte/data/bfs-v-cfs_groves-knockel-schulte.pdf

poging22 said:
by the way, MIUI has its own kernel? When you flash MIUI, what kernel do you get in default?
how about CM7?
Click to expand...
Click to collapse
depends on what version of MIUI you flash

poging22 said:
I'm using Trinity now with 1.54 OC. It's snappy but drains battery fast.
Click to expand...
Click to collapse
Whys it all the way up :O i mean OC'd just install TUV and use LiveOC 110 =/
It'll just OC it to about 1110 Mhz + 10% clock increase of the GPU

[Q] Have you managed to OC to 1460MHZ and keep stability?

I'm using AOSP+ ICS ROM with the latest Matr1x kernel. Whenever I try to OC to 1460 the phone freezes and I have to pull the battery, so I'm forced to run at a maximum of 1300MHz.
Also, on a related matter, is it good practice to use SetCPU with various profiles (battery<, temp>, screenoff, charging) for various frequencies? Or should I just use AOSP+ tweaks to chose a min and max frequency and let it be?
Thanks for taking the time to answer these.

Raise all voltages by +30 across the board
Sent from my Nexus S using XDA App

My Phone freezes when i try to OC to 1460

Read the above comment or read my FAQ...god..
Lol
Sent from my Nexus S using XDA App

http://www.youtube.com/watch?v=DPclc3eKgiQ&feature=youtube_gdata_player
Sent from my Nexus S using XDA App

zgomot said:
Also, on a related matter, is it good practice to use SetCPU with various profiles (battery<, temp>, screenoff, charging) for various frequencies? Or should I just use AOSP+ tweaks to chose a min and max frequency and let it be?
Click to expand...
Click to collapse
If you are using deep idle you shouldn't underclock since it causes a race-to-idle condition. In other words your battery will drain faster. If you don't use deep idle, feel free to underclock when the screen is off or whatever you want.

sakisds said:
If you are using deep idle you shouldn't underclock since it causes a race-to-idle condition. In other words your battery will drain faster. If you don't use deep idle, feel free to underclock when the screen is off or whatever you want.
Click to expand...
Click to collapse
To the point and verry helpful, thanks a bunch
mathkid95 said:
Raise all voltages by +30 across the board
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Can I do this via AOSP+ tweaks and still use SetCpu to OC and UC? Are they conflicting apps? (Deep idle OFF)
Sent from my Nexus S using XDA App

I would recommend just using setcpu
Sent from my Nexus S using XDA App

mathkid95 said:
Raise all voltages by +30 across the board
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Just an update, Using CNA 1.4.0 and Matr1x v17, I am stable oc'ed to 1460.
this is what I am running
1)800/1460
2)gov =Ondemand
3)Scheduler =Noop
4)all voltages to +30 (used the cna rom's voltage tweaker)
I tried ShadowGun: the Leftover.. and It was flying. Of course, make sure that have enough battery or that you have a charger ready. But finally it works, try this and let me know

I can run it for 10-20 min of usage then get a freeze. I never raised the voltages before though. It seems like its working for other people. And the actual developer of Matrix Kernel is telling you to ....
Nexus S (GSM i9020a)
AOKP (Build 25)
Eugene's Kernel (Speedy 7)
OC 800/100 (Lionheart)
Live OC (105)

It still amazes me how so many people that ask about overclocking have no frigging idea at all how cpus/gpus in general are binned etc.

I have a question. Why do you guys overclock that much? It might be snappy but battery life is just bad and it just doesn't worth it in my opinion.
Sent from my Nexus S from Tapatalk

albundy2010 said:
It still amazes me how so many people that ask about overclocking have no frigging idea at all how cpus/gpus in general are binned etc.
Click to expand...
Click to collapse
Care to shed some light for us people that have no frigging idea at all how cpus/gpus in general are binned etc? If not, well... why did you even bother posting?
ljordan2 said:
I have a question. Why do you guys overclock that much? It might be snappy but battery life is just bad and it just doesn't worth it in my opinion.
Sent from my Nexus S from Tapatalk
Click to expand...
Click to collapse
Personally, I do it because I can. Seriously... I'm a geek, I love gadgets and tech and I like to tinker.
On the subject at hand, I'm still unable to OC to 1460 (ARM voltages +30, INT voltages +25) but at 1300 it runs fine, no issues whatsoever.

i can run 1460 stable all day. bigxie/matrix. just did +30 to all the voltages above 1000. deadline and lulzactive..

If you are a geek you would know about something as simple as binning chips. Do what a tech geek would do...look it up. Same thing the op should have done with his ?. Hell mathkid has a answer to his ? In the op of his kernel thread. Which is the kernel he is running

albundy2010 said:
If you are a geek you would know about something as simple as binning chips. Do what a tech geek would do...look it up. Same thing the op should have done with his ?. Hell mathkid has a answer to his ? In the op of his kernel thread. Which is the kernel he is running
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Click to collapse
You're kinda bitter for someone married to a busty redhead

jesusice said:
You're kinda bitter for someone married to a busty redhead
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Click to collapse
Haha, I thought so too.
Sent from my Nexus S

SetCPU

Anyone here use SetCPU with their device? Notice a big difference?
Care to share your configurations as well?

What kernel are you using?? if you use faux123's kernel than he has fuax clock specially made for his kernel.
nutsngum said:
Anyone here use SetCPU with their device? Notice a big difference?
Care to share your configurations as well?
Click to expand...
Click to collapse

appdroid said:
What kernel are you using?? if you use faux123's kernel than he has fuax clock specially made for his kernel.
Click to expand...
Click to collapse
Romracer

Unless u wanna uc you don't need that CPU app. I used system tuner.
nutsngum said:
Romracer
Click to expand...
Click to collapse
Sent from my SAMSUNG-SGH-I727 using xda premium

nutsngum said:
Romracer
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Click to collapse
if using the Original Romracer kernel....there is no over clocking or undervolting. so the only thing you can really change is the scaling.
so if you want speed, set it to preformance which will force both cpus on line AT ALL TIMES. but will drain the batter faster other than that. there is not much you can do with a stock kernel. which is what romracers kernel is.

nutsngum said:
Anyone here use SetCPU with their device? Notice a big difference?
Care to share your configurations as well?
Click to expand...
Click to collapse
Hi,
I'm on TPC V3 with Da_G 0.43 Kernel.
I've one profile in SetCpu which is "screen off: max 192 min 192 with smartassv2 governor". I'm a light user and my record is fifty hours with a battery life.
I can't say if SetCPU has a lot to do with this but the smartassv2 governor helped a lot for sure.

I am rooted with the stock ROM and find that setcpu makes my phone lag more with Faux Kernel. When I delete the app, everything runs much more smoothly.
Sent from my SAMSUNG-SGH-I727 using Tapatalk

acles003 said:
I am rooted with the stock ROM and find that setcpu makes my phone lag more with Faux Kernel. When I delete the app, everything runs much more smoothly.
Sent from my SAMSUNG-SGH-I727 using Tapatalk
Click to expand...
Click to collapse
Try using FauxClock with his kernel, it's an app designed for his kernel specifically, and works great.
I'm at 1.2GHz (battery life) with a 87.5mV underclock on all steps, runs like a bauss.
I will admit, Da_G's kernel is miles ahead when it comes to performance, but it SoD's way too much on my phone, unfortunately.

Voltage control on ICS?

Is there an app that will work to control voltage on ICS yet?
Sent from my Nexus S 4G using XDA

Nstools
Link - http://forum.xda-developers.com/showthread.php?t=1333696
Sent from my Nexus S using Tapatalk 2 Beta-2

ROM Toolbox Pro also allows you too modify these settings.

Or setcpu
Sent from my Nexus S using xda premium

Do these require specific kernels to work?
Sent from my SPH-D710 using XDA

Yes , not all kernels allow change voltages
Sent from my Nexus S using xda premium

Voltage adjustment is not really necessary, unless you are increasing voltages for overclocking.
NStools is a Nexus user favorite, powerful, and free.

Braneless said:
Voltage adjustment is not really necessary, unless you are increasing voltages for overclocking.
NStools is a Nexus user favorite, powerful, and free.
Click to expand...
Click to collapse
Voltage adjustment is necessary when UVing so you can save battery duh??? lol
Even when overclocking.

XxLostSoulxX said:
Voltage adjustment is necessary when UVing so you can save battery duh??? lol
Even when overclocking.
Click to expand...
Click to collapse
Uhh, no. I suggest you read up on the findings/observations documented by multiple kernel developers and bedalus's kernel testing posted here. UV has no effect on power consumption.

Read first post http://forum.xda-developers.com/showthread.php?t=1448900
Sent from my Nexus S using xda premium

Braneless said:
Uhh, no. I suggest you read up on the findings/observations documented by multiple kernel developers and bedalus's kernel testing posted here. UV has no effect on power consumption.
Click to expand...
Click to collapse
Well I tested it on my friends nexus s 4g and my epic 4g and with a lot of UVing. Lemme further explain.
Okay when you UV it just uses less amount of voltage on that frequency so in essence you save battery because not as much voltage is being used. Now however if you UV by a lot like -100mV and higher the phone will lagg a bit. If you overvolt your pushing more voltage to the phone which is more power being used.
I just tested my phone freqs. Used were 100,200,400,600,800,1000 And all were UVed by -100mV and playing games and using lower freqs it will lagg. When I didn't UV at all it never lagged.
Not to mention BTW I was @ 88% before and it only took me 2 mins to post this and now I'm at 86% with no UV at all. And last post before this I took me same time with UVed I went from 95% to 95% lol.
Sent from my SPH-D700 using xda premium

XxLostSoulxX said:
Voltage adjustment is necessary when UVing so you can save battery duh??? lol
Even when overclocking.
Click to expand...
Click to collapse
Not according to my testing.
kernels ; battery ; ROM ; gov/sched
Now with summaries in the first posts. Convenient for XDA app users!

bedalus said:
Not according to my testing.
kernels ; battery ; ROM ; gov/sched
Now with summaries in the first posts. Convenient for XDA app users!
Click to expand...
Click to collapse
Well I can say every phone is a tad bit diff. But for whatever reason no matter who's phone when I UV if the phone handles it it. It saves me battery I want you to test this and see.
Run whatever scheduler and say performance run 100 MHz by -200mV like and 200 Mhz by -150mV and so forth. Play GtA 3 and watch when UVed it laggs and when Not it laggs stillbut not as bad. I mean hell even 1.5GHz no UV I still lagg haha
Sent from my SPH-D700 using xda premium

Thanks guys! Ill check on this some more when I get home.
Sent from my SPH-D710 using XDA

Post your stable PBJ settings

As the title states, put up your dukes!
Running manually debloated stock odex'ed
0502 PBJ EXT4
Scheduler BFQ
Governer Performance
100Mhz-No UV
400Mhz-No UV
1000Mhz-No UV
1,400Mhz-No UV
There is still an annoying lag here and there but for the most part it rips!

Eclipse v1.4, FP1 radios, sio scheduler, smartassV2 governor, 0130 PBJ
Code:
1400MHz -> -50mV (don't typically use this one)
1300MHz -> -50mV
1200MHz -> -50mV
1000MHz -> -75mV
800MHz -> -100mV
400MHz -> -100mV
200MHz -> -125mV
100MHz -> -150mV
[edit: Forgot to add my governor. OP, you use performance all the time? How does that not destroy your battery?]

Tweaked v2
PBJ May EXT4
0-800mhz -100mv smartassv2 sio
Anything else?
Sent from my SCH-I510 using xda premium

Tweaked 2
Pbj 0502
Smartasv2
1200 - 50
1000 -75
800 -100
400 -125
200 -150
100 -200
Sent from my handheld Linux computer using electromagnetic radiation.

Cilraaz said:
[edit: Forgot to add my governor. OP, you use performance all the time? How does that not destroy your battery?]
Click to expand...
Click to collapse
I have to give it a week or so to see how battery consumption is.
You guys' phones are so heavily undervolted.
No performance problems with that? Music playback difficulties?

bwheelies said:
I have to give it a week or so to see how battery consumption is.
You guys' phones are so heavily undervolted.
No performance problems with that? Music playback difficulties?
Click to expand...
Click to collapse
No problems for me. And performance governor means the phone stays at max frequency all the time. You should never use it for real usage just for testing.

bwheelies said:
I have to give it a week or so to see how battery consumption is.
You guys' phones are so heavily undervolted.
No performance problems with that? Music playback difficulties?
Click to expand...
Click to collapse
Undervolting has zero to do with performance. The danger with undervolting is instability. If you undervolt too much, you'll crash because your CPU can't draw enough power to do an operation.
A certain CPU is able to do a certain amount of work in a given clock cycle, and that amount of work does not change in the slightest with voltage.
EDIT: Also, as JihadSquad said, performance keeps your CPU at 100% maximum clock speed at all times. It doesn't let it slow down. It is brutal on a battery for no real world gain.

Anyone notice when using smart ass governor it won't overclock to 1400 , it can over chick anything else but not 1400 for some reason so I have it at 1440
Sent from my SCH-I510 using XDA

And I'm using set cpu
Sent from my SCH-I510 using XDA

Ahh 1.5ghz is so smooth!, I'm running that from now on, it improves touch sensitivity
Sent from my SCH-I510 using XDA

juanzr1 said:
Ahh 1.5ghz is so smooth!, I'm running that from now on, it improves touch sensitivity
Sent from my SCH-I510 using XDA
Click to expand...
Click to collapse
Lucky lucky piece of silicon right there. Mine can only get to 1400 and at 1440 it starts freezing sometimes, 1500 unusable.

JihadSquad said:
Lucky lucky piece of silicon right there. Mine can only get to 1400 and at 1440 it starts freezing sometimes, 1500 unusable.
Click to expand...
Click to collapse
I can only get 1300 on mine. 1400 randomly reboots on me after a while.

JihadSquad said:
Lucky lucky piece of silicon right there.
Click to expand...
Click to collapse
Or unlucky. At SetCPU's default for 1500MHz, it's running +325mV (+27.7%) from stock. So it's either really good silicon or a contender for a replacement in a few months.

Eclipse 2.0
CWM version 5.0.2.7
Baseband i510.06.FP1
Kernel 2.3.35.4-EP4-g311a209
Build SCH-I510.FP1
Lag is brutal sometimes. Speaker crackles and pops. Phone calls only last a couple minutes before the person on the other end can't hear me.
I am looking for a better solution. Any pointers would help greatly.

Oldtymehockey said:
Eclipse 2.0
CWM version 5.0.2.7
Baseband i510.06.FP1
Kernel 2.3.35.4-EP4-g311a209
Build SCH-I510.FP1
Lag is brutal sometimes. Speaker crackles and pops. Phone calls only last a couple minutes before the person on the other end can't hear me.
I am looking for a better solution. Any pointers would help greatly.
Click to expand...
Click to collapse
For one thing, you're running an EP4 kernel with a FP1 rom and radio. Install a FP1 kernel, either stock (http://forum.xda-developers.com/showthread.php?t=1582470) or PBJ (http://rootzwiki.com/topic/137-05-04-12peanutbutta-jelly-time/) and go from there.

shrike1978 said:
For one thing, you're running an EP4 kernel with a FP1 rom and radio. Install a FP1 kernel, either stock (http://forum.xda-developers.com/showthread.php?t=1582470) or PBJ (http://rootzwiki.com/topic/137-05-04-12peanutbutta-jelly-time/) and go from there.
Click to expand...
Click to collapse
I think I need to deal with the file system first. I have that discussion going in another thread.
Perhaps Odin back to stock and reapplying changes in order is in order.

JihadSquad said:
Lucky lucky piece of silicon right there. Mine can only get to 1400 and at 1440 it starts freezing sometimes, 1500 unusable.
Click to expand...
Click to collapse
Well 1500 crashed on me and 1440 was a little better but it also crashed
Sent from my SCH-I510 using XDA

What's the highest anyone has overclocked?
IM running
Pbj 0130 kernel ( also I can't get the new kernel to install 0504, it boot loops when I try) any ideas?
Stock ROM
SmartassV2
Overclocked to 1.4mhz
Underclocked at 200mhz
Sent from my GT-P6210 using xda premium

wolverine38812 said:
What's the highest anyone has overclocked?
IM running
Pbj 0130 kernel ( also I can't get the new kernel to install 0504, it boot loops when I try) any ideas?
Stock ROM
SmartassV2
Overclocked to 1.4mhz
Underclocked at 200mhz
Sent from my GT-P6210 using xda premium
Click to expand...
Click to collapse
Did you wipe cache and dalvik. I like doing it before and after flashing kernel and rom.... don't forget to mount system, if that does not do it mount everything.... post the steps you have used before so we can better help you.
Sent from my SCH-I510 using XDA

wolverine38812 said:
What's the highest anyone has overclocked?
IM running
Pbj 0130 kernel ( also I can't get the new kernel to install 0504, it boot loops when I try) any ideas?
Stock ROM
SmartassV2
Overclocked to 1.4mhz
Underclocked at 200mhz
Sent from my GT-P6210 using xda premium
Click to expand...
Click to collapse
Try to fix permissions before leaving CWM. That has worked for some people trying to go back to stock.