yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] AMDPOWERFIST:
Test results so far:

Testing is done in the same location each day a new kernel is released. Proceedure is as follows:

COPY NEW KERNEL ZIP TO SDCARD > BOOT TO RECOVERY > WIPE CACHE / DAVLIK > REBOOT RECOVERY > INSTALL NEW KERNEL ZIP > REBOOT RECOVERY > WIPE CACHE / DAVLIK > REBOOT

Battery Monitor Widget app info located here:

http://xdaforums.com/showpost.php?p=19416214&postcount=4418

Conditions: 30minutes rest after restart / widget drain record value

K2-18

test3 had a 104mA drain

test5 has a 87mA drain

test6 has a 43mA drain

test7 has a 44mA drain

test8 has a 41mA drain

test9 has a 40mA drain

test11 has a 34mA drain

test12 has a 27mA drain

test13 has a 40mA drain

test16 has a 48mA drain

test17 has a 40mA drain

Quadrant Scoring? :-

Conditions: Fully charged / reboot / record 3rd attempt

*note* - Quadrant scores are NOT a measure of real life speed, they are behind the scenes speed and scores should only be used as a guideline for serious issues rather than how the unit functions. E.g. a score difference of 1000 – 1500+ can show some serious faults or flaws in ROM / Kernel Combinations or hardware faults.

K2-18

test 3 had a 4307 score

test 5 had a 4723 score

test 6 had a 4652 score

test 7 has a 4102 score

test 8 has a 4825 score

test 9 has a 4607 score

test11 has a 4118 score

test12 has a 4483 score

test13 has a 4697 score

test16 has a 4423 score

test17 has a 4219 score

Kernel Wakelocks:

Conditions: 1hour after reboot / fully charged / screen off

K2-18

test 3 - 10 types of Kernel Wakelocks

test 5 - 11 types of Kernel Wakelocks

test 6 - 8 types of Kernel Wakelocks

test 7 - 8 types of Kernel Wakelocks

test 8 – 5 types of Kernel Wakelocks

test 9 – 11 types of Kernel Wakelocks

test 11 – 12 types of Kernel Wakelocks

test 12 – 8 types of Kernel Wakelocks

test 13 – 11 types of Kernel Wakelocks

test 16 – 8 types of Kernel Wakelocks

test 17 – 11 types of Kernel Wakelocks

CPUSpy 1hr % recording (New Recording – started from transition between test 8 to test 9)

Conditions: 1hour after reboot / fully charged / screen off – record values of deep sleep / 200mhz %’ages

Test 8 – Deep sleep 92% / 200mhz 3%

Test 9 - Deep sleep 91% / 200mhz 6%

Test 11 – Deep sleep 91% / 200mhz 7%

Test 12 – Deep sleep 93% / 200mhz 3%

Test 13 - Deep sleep 90% / 200mhz 5%

Test 16 – Deep Sleep 91% / 200mhz 4%

Test 17 – Deep Sleep 91% / 200mhz 4%

These are however only tests done by my individual unit, every unit is different. Tests WILL vary from person to person / phone to phone.
[Galaxy S II Original Android Development] Vahidmoby:
i mean k2-17 test 1 :)

---------- Post added at 03:33 AM ---------- Previous post was at 03:29 AM ----------

tnx for sharing ur result its very very usefull for me :)

could u please add k2-17 test 1 in ur result?
[Galaxy S II Original Android Development] AMDPOWERFIST:
Sorry dude, i just dont have time to run through every kernel. I wish i did. The test i do is under the same conditions, 1 hour straight after a flash. And always done at my work desk. I basically do it for my own use, but i figured i might as well post the results on here to let others know that this is a standard measurement of a few tiny area's, its by no means a thorough test or in great depth, but still a rough indication for others to use if they wish to.

There is some other user who is doing very thorough testing, im sure he will post his results soon, he has also tested Siyah and Void kernels as well, which is very handy. I will stick with just the new kernels and keep posting them on here.

Cheers
[Galaxy S II Original Android Development] Vahidmoby:
@Hardcore

hi tnx for ur great kernel

please share the k2-18 test 12's Source Code :)
[Galaxy S II Original Android Development] gorillaCF:
i've tried kp1 for 1 day and seems like the modem doesnt really like me. haha.

drains alot of batt, bad reception, and slow data download too. maybe its just my phone :/

i'm on singtel tho. not m1.

btw, seems like test16 has a slightly more battery drain overnight. anyone experienced this? 10% drained in 6 hrs :/
[Galaxy S II Original Android Development] interfreak:
Test 12 appears to be the best allrounder so far, odd considering that hardcore admits that he miscalculated the way the cpu hotplug timer works!
[Galaxy S II Original Android Development] aers99:
Can u give link where to download kI1, kI4 & kp1 modem. Which modem is better if I'm from m'sia?:D
[Galaxy S II Original Android Development] CamoGeko:
Click on the modem I'm using in my sig, that will take you to the sticky modem thread.

Communicated from a Galaxy far far away via an XDA premium neurotransmitter while DJ'ing on The Enterprise.
[Galaxy S II Original Android Development] gorillaCF:
i think some buddies mentioned that they're good on KL1. not very sure.

refer to above post by geko on the modem link :D

thanks geko!
[Galaxy S II Original Android Development] shahulvm:
10% battery drain for overnight is slightly above average, depending how long your overnight is ;)

Try checking your battery usage with Better Battery Stats

---------- Post added at 10:34 AM ---------- Previous post was at 10:32 AM ----------

+1 if I have its sources!!!!

Then i would just go and undervolt using feno method to get the best battery life \o/
[Galaxy S II Original Android Development] gorillaCF:
haha i tried. phone is deep sleep all e time with 2g/3g on, as i dont use JD to auto off 3g and i'm lazy to manually off 3g. no wakelocks interfering.

the overnight im talking abt is approx 5-6hours. so its quite a significant amount to me.

doesnt happen when i'm in test12 though. haha. maybe i should try test17 now.
[Galaxy S II Original Android Development] shahulvm:
As the saying goes, never touch an engine that works well!

So go with the one which fits you best. Always share your findings so others can beenfit as well.
[Galaxy S II Original Android Development] shawnaye:
yesterday when i woke up my battery went from 88 when i shut my eyes to 34 when i opened them..

i later found out that this was due to handcent causing my phone to have a wake lock lasting 2 hours due to an unread message.

if anyone is facing extreme drain, they should check that.
[Galaxy S II Original Android Development] radicalgel:
Colour difference!

Firstly I'd like to thank Hardcore for his amazing efforts.

I just had a small doubt about the colour correction that I built in to this kernel. I can't seem to notice the difference between this and stock. Can some point me to a comparison thread or post images showing the actual difference. This would really help me out.
[Galaxy S II Original Android Development] gorillaCF:
haha yeap, sharing watever that i can.

maybe i should go back to test12 haha.

wow handcent is keeping the phone awake for an unread sms? thats bad. i'm using go sms. no prob on wake lock ;)
[Galaxy S II Original Android Development] cristi_8ic:
test 17...

seems better than test 12 (for me)......battery drain over night (7.5h)..only 2%....

I haven't made a full discharge yet, but the firs impression is very good!
[Galaxy S II Original Android Development] It_ler:
Results for SpeedMod / void / Phenomenal / stock kernels

Everything is specific to my phone, my "normal" usage and my home location. Most values are exact results, but some are rounded. I usually have wifi, synch (three email accounts, calendar and news), Google Talk and Skype on.

For all custom kernels, I was running on Frankenstein XWKK5 ROM (Modem: XXKI3).

For stock kernels, I was running on the corresponding stock ROM.

Always using the Samsung's standard / stock 1650mAh battery.

Running void.echo kernel, I used the default settings, and only enabled „Auto CPU UV on boot“.

Here are my current results:

Benchmarks

Battery stats

On Test16, I tried XXKI3 and XXKL1 modem over night under same conditions.

For me (my phone with my settings/apps) XXKI3 modem had better battery savings.

Now I am testing battery life with Test17.

Will post my results as soon as my test are finished.
[Galaxy S II Original Android Development] gorillaCF:
test17 seems as good as test12, am i right to say that?

i'll try test17 with KI3 now.

thanks for the tests lt_ler.

edit: tried test17 for a few hours. doesnt look good to me. suddenly have alot of wakelocks that i've not seen before. well, its back to test12 for me. ahah. hoping for a finalized version of k2-18 soon!
[Galaxy S II Original Android Development] Manitax:
Wow test 17 seems to be very good and smooth for me. With display and wifi on i get 1% drain every 4-6min so i should get over 7h of screen on. Lets wait if i can reach that.

Before i had 2-3h of display on but i also tweaked some other stuff.

Wifi location off and flashed KL1 Radio.

Thanks!!!
[Galaxy S II Original Android Development] benalejandro:
I've had I problem with the latest test kernel; I unplugged the phone after fully charging it, as usual, then I didn't touch it for the next 6-7 hours while at work. When I checked it after this time, I've found the battery started to drain very quickly 1 hour after unplugged.

No app wakelocks, but "vbus_present" kernel wakelock for almost 6 hours even though the phone was disconnected.

XWKK2 + K2-18 T17
[Galaxy S II Original Android Development] Rinoko72:
That wake lock has something to do with the phone being charged.. Not much you can do about that..

You will probably get the same which ever kernel you use.. ;)
[Galaxy S II Original Android Development] cakerone:
This wake up problem is, because you have setup "pop up window-ON" in handcent, haven't? sry. for my english :)
[Galaxy S II Original Android Development] hardcore:
Thats from the 6 hours that you were charging your phone.
[Galaxy S II Original Android Development] Chanz09:
I think thats how long your phone was on charge for. It will reset when you restart the phone. Same i think with powermanagerservice. So its best to restart the phone after full charge this will reset everything to zero
[Galaxy S II Original Android Development] FrenchSparda:
Test-17 seems to be a really good one for me....80% left..1hour display..30min calls.. some UNO (15min)...browsing and tweeter....wifi on almost all the time ;)
[Galaxy S II Original Android Development] benalejandro:
You are right, I didn't have any major app wakelock, only the usual gapps wakelock for just a few minutes and I misunderstood the kernel wakelock.

Anyway, the battery drain is still a mystery, it never happened to me before.

Maybe the phone just refused to go to deep sleep for some reason.

Thank you anyway.
[Galaxy S II Original Android Development] tarpek:
I have found my mistery... Wifi sleep was on NEVER...
[Galaxy S II Original Android Development] taqri85:
Great great kernal. really battery friendly. thanks to the developer.
[Galaxy S II Original Android Development] gorillaCF:
sigh really dont know whats wrong. used to have very minimal batt drain overnight.

now it became 15% over 7 hrs. is it normal? cant post screenshot now. maybe will post at night for some help from the experts here.

phone seems to be awake for a short while at a frequent interval. not sure the cause of it, even though i checked BBS.
[Galaxy S II Original Android Development] SupraN0va:
It's simple, rules says the he has to release the source code of the kernel. Not for betas or test kernel, that means no sources for the competition to him self an advantage. ;)
[Galaxy S II Original Android Development] Vahidmoby:
@hardcore

why u don't use Number "14" in ur Kernels?? isn't ur Lucky Number? :D
[Galaxy S II Original Android Development] darkneill:
14 = sure die
[Galaxy S II Original Android Development] It_ler:
Results for SpeedMod / void / Phenomenal / stock kernels

Everything is specific to my phone, my "normal" usage and my home location. Most values are exact results, but some are rounded. I usually have wifi, synch (three email accounts, calendar and news), Google Talk and Skype on.

For all custom kernels, I was running on Frankenstein XWKK5 ROM (Modem: XXKI3).

For stock kernels, I was running on the corresponding stock ROM.

Always using the Samsung's standard / stock 1650mAh battery.

Running void.echo kernel, I used the default settings, and only enabled „Auto CPU UV on boot“.

Here are my current results:

Benchmarks

Battery stats

Test17 is good but not the best kernel for me (on my phone with my "normal" usage).

For battery savings, Test13 seems to be better - in night and mixed usage, whereas Test12 was top in night use but worse in mixed usage.
[Galaxy S II Original Android Development] ithehappy:
Absolutely normal mate. This how Android is, some process or lately installed Apps might come from anywhere and drain some juice. You need to get used with it like all of us.

BBS is very good, aside BBS I also advice you to use this App, pretty useful one,

https://market.android.com/details?...1bGwsMSwxLDEsImNvbS5lb2x3cmFsLm9zbW9uaXRvciJd
[Galaxy S II Original Android Development] ewokuk:
its NOT normal if youve disabled unwanted wakelocks, lt_ler's tests prove that, not a single test hit 2% per hour overnight and 15 in 7 is more than 2%. most are 1 to 1.5%. i still use test12 and i get around 0.5% drain per hour overnight with gps on, 3g on and wifi off (i have almost no wakelocks).
[Galaxy S II Original Android Development] miketwn:
in chinese culture, number 4 is bad luck
[Galaxy S II Original Android Development] Vahidmoby:
Yeah i know,because, spell of "4" like " Death" in china language,but i dont understand,why 14 ??

Sent From My Mind
[Galaxy S II Original Android Development] Manitax:
My first run on test 17.

What do you think?
[Galaxy S II Original Android Development] Dark Emotion:
I think that this is impossible :o
[Galaxy S II Original Android Development] Vahidmoby:
but i think its possible

i'm on test 17 for 2 days,but last night i fully charge

and very very impressive so far for me

u see my result so far with normal usage on stock battery (wifi on for over than 8 h) : (u can calculate the numbers, then u see That POSSIBLE to gain over 6 h Screen On) :
[Galaxy S II Original Android Development] It_ler:
What ROM are you running on?

And what battery are you using (stock 1650 mAh or 2000 mAh)?

There is some awake time while screen is off. So check wakelocks to optimize your battery life, which is already great with over 6 hours screen on time.
[Galaxy S II Original Android Development] diminishdim:
2 days with wifi is truly amazing , it would help us even more if you gave us a clear idea about the governers and the speeds you use for various profiles
[Galaxy S II Original Android Development] Manitax:
Stock 1650 mAh Battery.

Checkrom V4 with KL1 Modem.

Yeah i also think this is a very good value.. i was really suprised after flashing this great Kernel!

Other improvements i have:

-No Walpaper

-Brightness to Auto

-Juicedefener Ultimate

-Set Cpu:

Sampling Rate 120000

Up Threshold 90

Powersave Bias 130

But i have to say that i didnt play any games.. just surfed in the net (Tapatalk, Dolhphin) and read an E-book (1h) and some SMS ~50
[Galaxy S II Original Android Development] Vahidmoby:
first of all i dont believe any tweak like setcpu and ....

everything is normal

on checkrom revo Hd v 4 with Ki1 modem

only one thing: when i need wifi,gps , ... i turned these on

it's my normal usage,or u can say light usage because i have some exams

i don't have enough time!!

but i believe with heavy usage i can gain very best result with test 17
[Galaxy S II Original Android Development] diminishdim:
from what ive seen on this forum ,it seems kI1 modem drains a lot of battery , have you tried out any other modem?
[Galaxy S II Original Android Development] Marc-Sch:
KL1 is great for me (Switzerland)

Envoyé depuis mon GT-I9100 utilisant Tapatalk
[Galaxy S II Original Android Development] Marc-Sch:
Wifi is always on and I get 2 days battery...

Envoyé depuis mon GT-I9100 utilisant Tapatalk
[Galaxy S II Original Android Development] Vahidmoby:
yeah i test ki3 and it was good for me,i dont have time to test KL1 modem

i'm testing KL1 ASAP
[Galaxy S II Original Android Development] Manitax:
You have to differ KL1 and KI1!!! KL1 is great for me in Germany O2.
[Galaxy S II Original Android Development] hardcore:
K2-18:

- Patches from Linaro to support ARM CPU topology

- Updated ARM topology patches

- Enabled sched_mc for dual-core power management

- Enabled AFTR (ARM off top running) CPU idle mode

- Nicer looking kernel version string

- Updated to CWM5

- VM patches from 2.6.36 kernel

- PREEMPT_VOLUNTARY mode

- CPU hotplug optimizations

- Disabled scheduler stats

- Disabled more debug code: STACKTRACE and LATENCYTOP

- High resolution timer HRTICK enabled in CFS scheduler

- Scheduler tweaks

- Some kernel config option cleanups

- Adjustments to compiler options

- Adjustment to wifi driver wakelock timeout

- max17042: Fix fuel alert wakelocks

- nohz: sched delay going tickless when CPU is loaded

- rcu: remove rcu_needs_cpu_flush() to avoid false quiescent states

- remove the per cpu tick skew

- Touchscreen MOVHYST ("Vitalij fix") set to 10
[Galaxy S II Original Android Development] Vahidmoby:
Finally :D tnxx hardcore
[Galaxy S II Original Android Development] iNeri:
Thanks. Traying now.

Enviado desde mi GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] alien45:
Great! Just downloaded.
[Galaxy S II Original Android Development] zoule HCo:
Thank u Hardcore..

I always with your kernel..

Fast & stable..

nice thing no more alone bracket ")" at the end of kernel version.. haha..

Nice.. :D

Thanks again buddy u make my day..
[Galaxy S II Original Android Development] zekurosu:
thanks hardcore...so far so good..using it with KL1 and CheckROM V4...will update later if im facing any issue
[Galaxy S II Original Android Development] aers99:
Will u recomend me to upgrade my modem from KI3 to KL1? Is this the best?

Coz we're from same country...:D
[Galaxy S II Original Android Development] obionenairobi:
OMG, I only just updated to version 17

What is effective the difference between 17 and 18?

Sent from my GT-I9100
[Galaxy S II Original Android Development] coolfire:
This is gonna be really good, I'm pretty sure.... because behind the scenes, hardcore has been working really hard with the input given during his test versions! :)

Sent from my SGSII
[Galaxy S II Original Android Development] zekurosu:
highly recommended...seems a tad faster compared to KI3
[Galaxy S II Original Android Development] Bl@ck:
Good job hardcore! :)
[Galaxy S II Original Android Development] crash_194:
Thanks hardcore!!!

Sent from my SGS2 GT-I9100 Courtesy of Tricky103, JKay and Hardcore... with a little help from Samsung in the form of a 2000mah battery ;-)
[Galaxy S II Original Android Development] AndroidGX:
Ok just downloaded final 18 release, and actually giving a try, I just hope it will be better than my test12 fetish. If not, I will revert to test12 for a while. :)

I will write something in few days for those who wants to know differences between these 2 kernels in term of battery life (idle/using, and performances). :cool:
[Galaxy S II Original Android Development] mrcreativity:
Thank you hardcore. Was waiting for an update with Cwm 5.
[Galaxy S II Original Android Development] ewokuk:
the obvious question here that wasnt mentioned, is k2-18 just a renamed test 17 (hence anyone that has tested 17 does not need to re-test), or are there changes to it since 17?
[Galaxy S II Original Android Development] pasquy85:
A Christmas gift! :) Thanks!
[Galaxy S II Original Android Development] Manitax:
What is the difference to test17?
[Galaxy S II Original Android Development] ziroxs:
Runs very very smooth scrolling within the home menus, wonderfull to see without any UV or UC. I will start with a minimal install and will see the battery life.
[Galaxy S II Original Android Development] ithehappy:
@Hardcore:

For releasing K2-18 Stable.
[Galaxy S II Original Android Development] gnam:
Just flashed via cwm, it seems to be to much draining
[Galaxy S II Original Android Development] hardcore:
There are changes.
[Galaxy S II Original Android Development] russell.nash:
Hi hc,

I used speedmod on both S1 and S2 for a very long time, but trying DK2.4.3 on S2 I had to find out that I really missed the BLN feature a lot. It speeds up my workflow a lot to immediately recognise sms and gtalk messages and of course missed calls.

This is why I simply cannot go back to speedmod as long as there is no BLN. Please rethink your ideas around BLN. There is no replacement for that feature. Even Samsung and Google came to this conclusion, Galaxy Nexus has a led...
[Galaxy S II Original Android Development] Jonjungle:
let the battery drain completely and re-charge, 1-2 cycles and you'll see the difference besides the usual questions if you wiped Dalvic cache etc.

---------- Post added at 01:08 PM ---------- Previous post was at 01:05 PM ----------

Reason SpeedMod will not include BLM is that it drains the battery, the aim of this Kernel is to give the best balance between battery life and performance. The issue is Samsung not including a LED in the first place on the S2 for design reasons.
[Galaxy S II Original Android Development] alien45:
How about battery life? SGSii is already fast enough. Most of us come here mainly care about battery. I'm using KI4 with Senstyle rom by Dynamic. Is it worth upgrading? I mean battery life, again! :-)
[Galaxy S II Original Android Development] bryant_16:
Can this work with rooted stock rom (2.3.3)?
[Galaxy S II Original Android Development] newHere:):
yes... :)

why not?
[Galaxy S II Original Android Development] bryant_16:
Do I need to clear davik cache after flashing the latest kernel?
[Galaxy S II Original Android Development] newHere:):
it's recommended to do so...
[Galaxy S II Original Android Development] wicked245:
It is not neccesary if you come from speedmode karnel...
[Galaxy S II Original Android Development] bryant_16:
Yup, I'm coming from Speedmod k2-16.
[Galaxy S II Original Android Development] zoule HCo:
recommended but not necessary.. ;)
[Galaxy S II Original Android Development] dartoumi:
This new version is really amazing! Thanx hardcore!

Sent from my GT-I9100
[Galaxy S II Original Android Development] justsimple1:
+ 1
[Galaxy S II Original Android Development] It_ler:
Results for SpeedMod / void / Phenomenal / stock kernels

Everything is specific to my phone, my "normal" usage and my home location. Most values are exact results, but some are rounded. I usually have wifi, synch (three email accounts, calendar and news), Google Talk and Skype on.

For all custom kernels, I was running on Frankenstein XWKK5 ROM (Modem: XXKI3).

For stock kernels, I was running on the corresponding stock ROM.

Always using the Samsung's standard / stock 1650mAh battery.

Running void.echo kernel, I used the default settings, and only enabled „Auto CPU UV on boot“.

Here are my current results:

Benchmarks

Battery stats

Running on Test17 kernel and XWKK5 ROM, XXKI4 modem had significant better battery savings on my phone than XXKI3.

That's why I will stay on XXKI4 modem for a while.

SpeedMod K2-18 is very fast and smooth.

I am very curious about its battery savings.

Will post my results as soon as I have finished all my tests.

Thanks hardcore for another promising kernel !
[Galaxy S II Original Android Development] russell.nash:
Please do not spread such fake answers. You are talking to someone using BLN for weeks now. It is obvious that there is _some_ drain, but it is very small compared to the benefit. It is of no importance for me if I recharge the phone with 50 % or 55 % battery at evening. I will do either way. I let it even blink for minutes and see no noticable drain during the day. So your answer is pure FUD.