yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] CamoGeko:
Ok, must be time for release now. I'd say Test 8. :D
[Galaxy S II Original Android Development] AMDPOWERFIST:
From my testing above, and just general use of Test12 - i found it hard to drain the battery down to <10% last night, as i like to drain the battery down then fully top it up for calibration with Battery Monitor Widget Pro....

If i had to suggest any version to anyone, i would definately go with Test12. Its absolutely fantastic.
[Galaxy S II Original Android Development] richyy74:
I can not agree more! :D
[Galaxy S II Original Android Development] LIPA:
+1 I agree
[Galaxy S II Original Android Development] Mechanisms:
Test 12 is also the best for me. Both when idle and when using the phone (screen seems to use a lot less battery).

I am coming from test 11.
[Galaxy S II Original Android Development] dzontra11:
Test 12 is the best for me and with 2.3.6. rocks....
[Galaxy S II Original Android Development] dzontra11:
....and Bench ...
[Galaxy S II Original Android Development] mdbde:
On test 12 the most Screentime ever!
[Galaxy S II Original Android Development] dzontra11:
What you mean?
[Galaxy S II Original Android Development] CamoGeko:
I think he means the most Screen On time. Over a single charge of course. ;)

Communicated from a Galaxy far far away via an XDA premium quality neurotransmitter.
[Galaxy S II Original Android Development] t0m_t0m:
I have one question, why the boot animation doesn't work with this kernel?
[Galaxy S II Original Android Development] AMDPOWERFIST:
Its disabled by Hardcore to reduce extra scripting etc thats not needed which helps ever so slightly with battery life and performance.

Basically stripping out all of the "Crap" that isnt required by the phone, to gain maximum efficiency and performance. This is one of them. Not many people restart their phones that often, so its not really a big requirement. And im sure most people can live without a flashy boot screen, to gain extra speed and battery...
[Galaxy S II Original Android Development] Lovehepburn:
People, if you had to choose between test 8 and test 12 in terms of interface smoothness and speed, which one would you choose? I'm not talking about battery life and quadrant scores, only about real-life experience?
[Galaxy S II Original Android Development] mdbde:
For me: checkrom revo (kj3) it's test 12 in terms of Battery and speed. Just try each kernel a couple of days after full charge. Then you can judge what's best for you. I am a heavy user and I didn't get 6 hours and a half on-screen time with any other kernel. I didn't notice any hicks or stuttering. It's buttery smooth
[Galaxy S II Original Android Development] hansation:
test12 is awesome... are we close to getting a final version? kudos hardcore
[Galaxy S II Original Android Development] KeesStolk:
Indeed, all is looking and working smooth.

Overnight 3% battery drop in 7hours with wifi and gps off, 3g enabled, never seen this before.

What i find a little strange is that CPU spy only report 3hours off deep sleep.

This is the same with BBS, a lot off wakelocks off my weather program (regendetector), but i like it to much and this way, 3% in 7 hours, who cares. :)
[Galaxy S II Original Android Development] alexkno:
For me k17 is still the best kernel forbattery on ki8, i get about 15-20% more screen and overall time as with test 10,12 and8 which were the best k18 versions for battery on my phone.
[Galaxy S II Original Android Development] y17dt:
Really incredible screen-on-time with test12. Thats really amazing! Also buttery smooth interface and everything is absolute speedy.

I´m on Check-Rom-Revolution 3.11 with ICS 1,5-Theme.

THANK YOU
[Galaxy S II Original Android Development] shahulvm:
+1 for test12
[Galaxy S II Original Android Development] milan188:
Agreed also I have tried nearly all the k18 versions. They are better performance wise but it's at a point where it makes no difference

Sent from Galaxy SII XDA Premium
[Galaxy S II Original Android Development] iCatchU:
t12 is the best on my phone!
[Galaxy S II Original Android Development] alien45:
100% brightness, WiFi on, sync on:gmail, facebook, justreader..... Watched ~270minutes of video. Amazing! Never had this kind of battery life before!
[Galaxy S II Original Android Development] coolfire:
Wow, was that on stock 1650mAh battery, may I ask?

Sent from my SGSII
[Galaxy S II Original Android Development] Lovehepburn:
Thanks to everyone for advices! I'm using test12 now and it seems to be the best kernel by now! Thank you, Hardcore!;-)
[Galaxy S II Original Android Development] alien45:
Sorry forgot to mention this. And yeah, it's the stock battery, 1650mah. I was thinking of getting the 2000mah original Samsung one, guess I don't have to anymore! :-)
[Galaxy S II Original Android Development] walie:
what ROM are you using?
[Galaxy S II Original Android Development] AndroidGX:
Here is just another picture to proof that test12 is one of the best (if not the best) test releases :)

2% drain in 7h16 during sleep mode :
[Galaxy S II Original Android Development] It_ler:
Results for SpeedMod 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 the SpeedMod kernels, I was running on Frankenstein XWKJ3 ROM and Samsung's standard 1650mAh battery.

Here are my current results:

Benchmarks

Battery stats

Ok, stock ROMs / kernels are getting better, but not as good as SpeedMod kernels.

Best balance between battery life and performance for me (on my phone with my "normal" usage) is still Test10 and Test12.

Probably I will add one more test to this comparison list: SpeedMod K2-18-test12 on XWKK5.
[Galaxy S II Original Android Development] :
Guys please tell me if I'm wrong..

Since speedmod doesn't support uv I put a init.d script by fenomeno83 et voltages I know for sure that are stable. How to check now if it is really working or not? Which extension should te script have, .sh isn't it?

Sent from my SGS2 - Checkrom Revo 3.1.1 | Speedmod k18 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] thanksgiving60:
who needs a second or larger capacity battery when you have this kinda battery performance?

this kernel proves how OC/UV is so unnecessary on I9100

edit: typo
[Galaxy S II Original Android Development] navodwickra:
Is this test 12?
[Galaxy S II Original Android Development] thanksgiving60:
Cognition S2 1.51 with K2-18-test11
[Galaxy S II Original Android Development] veeruchinnu143:
Guys my kernel version is XWKI8(GB 2.3.5 XWKI4).

Which speed mod version should I install. Shall I go for k2-18-test 12 or is there any specific kernel for my version...??
[Galaxy S II Original Android Development] SaneinOne:
Flash test-12.
[Galaxy S II Original Android Development] FrenchSparda:
Why dont you buy an old nokia 3310 ...try to use your phone pal...you can do many things with (browsing internet..games..videos..taking pictures....and many more)
[Galaxy S II Original Android Development] lrcquest:
Kk5 is doing really good. Only 8% loss in 9 hours on low to medium usage & that also in the first cycle. lets see, what

best can be made out of this.
[Galaxy S II Original Android Development] thez3ro:
Dude do you use your phone at all? I cant get over 25-26 hours at best... Sometimes 10-12 hours and battery is dead... im on simple and clean + speedmod k2-18-t12... with turning wifi,3g,data -off when not using...
[Galaxy S II Original Android Development] Evollution:
So for battery life b12 or b16 is better
[Galaxy S II Original Android Development] bervin:
I don't believe this! Your phone is practically awake all the way! How much display time did you clock?
[Galaxy S II Original Android Development] byobodybag:
2 days on a steady decline like that? Looks like you made paperweight out of your phone.

Like others here, I get around 25-30hrs a cycle before I charge again.
[Galaxy S II Original Android Development] pedrolopes665:
"I use my phone more than you-uu"

lol

What a joke u guys discussing personality...
[Galaxy S II Original Android Development] iggybuenaventura:
Test 12 is amazing. 17% left after 2 days 13h 23m. display time 4h 21m :D

I'm on Checkrom RevHD 3.1.1
[Galaxy S II Original Android Development] alien45:
Actually, my first snapshot has this info at three bottom. Anyway, it's Senstyle by Dynamic. Excellent Rom! If you are a fan of HTC Sense, you should get it:-)
[Galaxy S II Original Android Development] byobodybag:
no you're the joke. :D
[Galaxy S II Original Android Development] awojtas:
Okay I know everyone is getting great results on test12, but for me it has been the worst I've tried in the testx series! :( My phone went flat at 5pm today, after a normal day without anything more than usual calling and email, which on other testx kernels has typically left 30-60% battery remaining.

Yes, I cleared dalvik/cache after flashing. I've never had it go flat so quickly! Nothing new was installed or changed either.

I9100, 2.3.5 XXKI3 stock ROM.

Batterystats says since charged:

- 10h 43m wifi

- 7h 20m awake

- 2h 11m screen oon

- 39m phone on

I've re-cleared dalvik and hoping it will sort itself out after another couple of charges.

To add to that... the best results I've gotten recently are on test11, which seems at odds with the results other people have received...
[Galaxy S II Original Android Development] henriquesb:
Have you checked wakelocks?
[Galaxy S II Original Android Development] It_ler:
IMO it is nothing to scare about.

Just a short essay to my "philosophy" for stats results:

On different phones with different apps, different ROMs, which were use by different users in different locations ... so many influences ... the battery savings of the same kernel will always be different too.

If Test11 is the best kernel for you (your phone and your conditions), be happy and keep running this kernel.

And if you want to compare it with other kernels, try to keep as many conditions as possible exactly the same to receive reasonable results and get a "fair" comparison.

And even then, there are some influences on the phone's battery life that you can not directly control, such as network/internet traffic, weather, other interfering devices, etc.

So, do not only trust in numbers. They should give an objective clue to better / worse results, but at the end, you must feel comfortable with your phone and its software.

P.S.:

You should try XWKK5 ROM. My first results show that the stock kernel already has nearly the same battery savings like the best SpeedMod kernels - for me (on my phone running in my "normal" conditions).

I will post an updated comparison result list as soon as I finished my tests for XWKK5 stock ROM.
[Galaxy S II Original Android Development] CdTDroiD:
Hey mate, Have you tried this kernel with KK5 ROM yet?
[Galaxy S II Original Android Development] jdgs_zorro:
Rom Carbocean V6 + K18-12

Hi,

I'm getting high "Android System" battery drain, there is some program that I can view the proccess running inside "Android System" ??.

BatteryStatus show me a Kernell Wakelock called "vbus_present" that has 61% :(.

I charged the battery all the night trought power adapter and unplug at 07:00 a.m. and now at 10:26 I have 92% of battery without no use. (whatsapp, tango, gmail, facebook an twitter is pushing trough 2G).

Any idea ??

Thank You.
[Galaxy S II Original Android Development] qureyoon:
vbus_present is a wakelock when you have your charger connected.

If you're using Better Battery Stat you can click on the vbus_present and it will redirect you to a wiki page explainung what it is.
[Galaxy S II Original Android Development] jdgs_zorro:
I know it, but the problem is if the phone is unplugged 4 hours ago why this wakelock has 61% ???. :(

I've just reboot the phone and reset cpuspy, in one hour I'll check all the values.

Thanks.
[Galaxy S II Original Android Development] lrcquest:
& counting.
[Galaxy S II Original Android Development] It_ler:
I will finish my tests with stock kernel XWKK5 on stock ROM XWKK5.

After this I plan to flash the latest SpeedMod kernel.

Post my results here to support hardcore ... and maybe some other users.
[Galaxy S II Original Android Development] awojtas:
This is very true, every phone is different. I checked my wakelocks and they were minimal.

A month earlier I'd found TouchDown (Exchange client) was the leading cause of wakelocks (2000/day) so I used AutoStarts to remove the trigger for that which was Connection State Changed. Big improvement in battery life!

Sorry this is off-topic slightly, but can you flash to XWKK5 from XXKI3 without wiping all your data? I've always flashed and wiped data, but I'm just so busy I don't have time to reload everything at the moment to get the benefits of KK5 if it's a "wipe". I understand not to flash .PIT but wasn't sure if it would still wipe because it's going from 2.3.5 -> 2.3.6. Cheers
[Galaxy S II Original Android Development] 4EVA:
How long does it normally take to flash this kernel? Its have alr been 15mins and ongoing but i still stucks at

<ID:0/013> Added!!

<ID:0/013> Odin v.3 engine (ID:13)..

<ID:0/013> File analysis..

<ID:0/013> SetupConnection..

<ID:0/013> Initialzation..

<ID:0/013> Get PIT for mapping..

<ID:0/013> Firmware update start..

<ID:0/013> zImage
[Galaxy S II Original Android Development] lrcquest:
Hardly 10 to 15 seconds on Odin.
[Galaxy S II Original Android Development] globalgpj:
The battery life is amazing with Test 12.

Thank you.
[Galaxy S II Original Android Development] kartalgurhan:
Thanks. What are your kernel settings, i.e., governor? U/C? I/O scheduler?

greetings
[Galaxy S II Original Android Development] billab0n6:
............
[Galaxy S II Original Android Development] tonysac:
+1...

Sent from Galaxy
[Galaxy S II Original Android Development] kartalgurhan:
Since anyone can change the settings of the kernel, using voltagecontroller for example, I wondered if he'd done anything like that (if I sounded stupid in my previous post :) )
[Galaxy S II Original Android Development] nikzDHD:
Speedmod usually works best with no need to change anything, leaving it stock without changing governor or i/o is fine. It's optimized to run perfectly without those type of applications.
[Galaxy S II Original Android Development] tonyhunglow:
Test 12 is the BEST...
[Galaxy S II Original Android Development] billab0n6:
That's the beauty of speedmod... Without the need to change anything while maximising the usage of s2
[Galaxy S II Original Android Development] darkneill:
I having random restart with k18 test12,

When navigation with sygic .after restart its not stable , keep restart for few time.
[Galaxy S II Original Android Development] KeesStolk:
No problems here with K2-18 test 12 and sygic version 11.2.2, works like a charm.

Using Checkrom RevoHD 3.1.1.
[Galaxy S II Original Android Development] pedrolopes665:
Someone with brain!

I completely agree w you
[Galaxy S II Original Android Development] marsexpress:
I've had a major problem with 12. Not entirely sure it is the kernel. Twice now I've come back to my phone and the screen has been on at the lock pattern entry, the mobile network showing disconnected and the touchscreen not accepting any inputs. Pressing the power button makes the screen alternately brighter and darker. I ended up pulling the battery.

This happened yesterday with KJ3 and today with KK5. Anyone else experienced anything like this? I've now flashed k18-8 so I'll see. For the record all the SpeedMod kernels seem to function pretty well on my phone-test 12 got loads and loads of deep sleep and great battery life, but I can't live with an unreliable phone function (not that I am saying it is SpeedMod fault, I know there are too many variables here).

Cheers.
[Galaxy S II Original Android Development] It_ler:
Yes, just flash non-wipe ROM from Intratech's thread.

If you have issues with some FCs, you may wipe cache partition.

Usually, a factory reset will not be needed.

Good luck!
[Galaxy S II Original Android Development] scorpion667:
Not a big issue but ever since K2-16 and higher I notice a slight microstutter every time my finger touches the homescreen to scroll.

Can we modify the touchscreen sensitivity via scripts? I usually run with this set to 0. Some screens handle it better than others, my first s2 was wayy too sensitive with 0 any touch would register as a click but on my current s2 it's perfect at 0.
[Galaxy S II Original Android Development] millomonk:
does 18 test 12 support cifs?
[Galaxy S II Original Android Development] It_ler:
Results for SpeedMod / 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 SpeedMod kernels, I was running on Frankenstein XWKJ3 ROM and Samsung's standard 1650mAh battery.

Here are my current results:

Benchmarks

Battery stats

So, latest stock ROMs / kernels were really good for battery life, but they have worse performance (less speed) than SpeedMod kernels (on XWKJ3 ROM on my phone) - although subjectively, they feel smooth too.

As conditions have changed to much as consequence of flashing the new ROM, I will only add one test for SpeedMod K2-18-test12 on XWKK5 ROM to this comparison list.

Then I will close this one ...
[Galaxy S II Original Android Development] ewokuk:
I had the exact same problem, the thing was ridiculous and single handedly managed to kill the battery life. but i ended up deleting it and getting Enhanced Email instead, this is still the most used wakelock (despite the fact i have set email checking to manual!!!) but it does it a LOT less than touchdown, although the interface etc isnt as good. are there any other apps than AutosStarts (which seems out of date as no update since march) that would let me disable apps starting on certain events? (I know things like Gemini App manager will let me stop 'autostarts' at bootup but it doesnt let me stop things starting specifically on certan events such as Connection State Changed).

still using test 12 here, now at 50hr uptime with 22% battery left still (not a great deal of screen on time but still), if I can disable Enhanced email wakelocks and facebook wakelocks i think i can squeeze a fair bit more out of it.
[Galaxy S II Original Android Development] :
Yes it does. I'm using Samba Filesharing with no problem.
[Galaxy S II Original Android Development] planetf1:
@Marsexpress very similar.once yesterday am inst. 18 test 12.

I ran stock (cfroot)) today.stable, fast but convinced battery not as good, and screen brighter on auto, so now back on speedmod to see how it goes
[Galaxy S II Original Android Development] It_ler:
Just flashed SpeedMod K2-18-test12 kernel on my XWKK5 ROM.

Quadrant Standard score is higher than Test12 on XWKJ3 - and significantly higher than all stock kernels I have tested so far.

But it is not the best score I've had - some SpeedMod kernels on XWKJ3 had a little bit higher score.

NenaMark2 (OpenGL) shows a new highscore now - together with two other SpeedMod kernels on XWKJ3.

But Vellamo (browser) benchmark ...

...on XWKJ3, I always had about 940 - 960 points. Both with stock and SpeedMod kernels.

With stock kernel XWKK2 => a bit more than 1000 points, with stock kernel XWKK5 => a bit more than 1100 points, and with Test12 on XWKK5 => more than 1200 points.

Now I am very curious about the battery saving results.

Will post all numbers as soon as my tests are finished.
[Galaxy S II Original Android Development] djunited:
test 8 remains the smoothest for me on checkrom 3.1.1
[Galaxy S II Original Android Development] interfreak:
Getting very good battery life and smoothness with K2-18(10) and the stock XWKK5 Rom (2.3.6). Think I have found the kernel/Rom sweetspot! :-D

Will post my usage when the battery eventually runs out.
[Galaxy S II Original Android Development] doongoo:
It is a Sygic problem with SGS2. Just read their support site
[Galaxy S II Original Android Development] interfreak:
Well, with still 15% to go with my battery I have achieved the following results with moderate use (game playing, installing ICS animation scripts, browsing etc etc) with k2-18(10) and XWKK5 2.3.6 :
[Galaxy S II Original Android Development] nikzDHD:
That's not good, you should be getting more screen time but I can see you had a drop towards the end, post up the usage screen shot.
[Galaxy S II Original Android Development] interfreak:
I did! lol

You might mean this though:
[Galaxy S II Original Android Development] bervin:
No, he meant the display on time. you posted that in your initial post and it only stated an hour and a half. Using me as an example i would have clocked 2hr30mins when i'm at 50% battery
[Galaxy S II Original Android Development] bryant_16:
I'm still on 2.3.3 with this Speedmod kernel.

Is it ideal?
[Galaxy S II Original Android Development] nikzDHD:
No I meant the actual usage graph, time awake vs screen.
[Galaxy S II Original Android Development] interfreak:
Oh ok. I did have 35mins of talk time as well and as i said i rebooted a couple of times as well.

Im also running the Anker 1900mAh battery which seems to be better than the stock one.

Are you saying my battery usage should be better?
[Galaxy S II Original Android Development] It_ler:
I wouldn't say that.

But considering the "jump" in the battery power graph, you should start another battery life cycle to get a better feeling of the "real" battery saving performance of your ROM - kernel combination.

It is always difficult to compare same ROM / kernels on different phones used by different users in different locations.
[Galaxy S II Original Android Development] Chanz09:
Here is what i got with 18 test 12. Its best overall perfomance i ever had since i got the phone & Still have 12% left. Thanks to Hardcore
[Galaxy S II Original Android Development] Vahidmoby:
with Stock 1650 mA Battery?
[Galaxy S II Original Android Development] Chanz09:
This is with the 2000mah battery, mind you though i never got this sort of performance with other kernels that i have tried. Anyone using stock battery can get 4-5hr screen time with 1hr talk time with more or less same usage.
[Galaxy S II Original Android Development] milan188:
Switched from k17 to 18-test 12 battery life is pretty similar... Cpu spends more time at 1000mhz than 1200mhz... I have got 3 hours 12min screen time and I still have 50% left

Sent from Galaxy SII XDA Premium
[Galaxy S II Original Android Development] henriquesb:
Maybe Hardcore could try some of the stuff from test12 on top of K17 ;)
[Galaxy S II Original Android Development] kel1ng:
I have just upgraded to xwkk5 and flash kernel to speedmod s2 k2-18 t 12. My original boot animation is broken after I flash speedmod. booth animation was still okay after I flash xwkk5. Any of you guys facing this problem? Many, many thanks in advance:D
[Galaxy S II Original Android Development] lrcquest:
Still 30 % to go and already clocked 51 hours.
[Galaxy S II Original Android Development] Vahidmoby:
hmmm it's pretty nice

give us more information About u'r Rom and kernel?
[Galaxy S II Original Android Development] FrenchSparda:
Still those stupid questions......are you sure you're not using a custom one......
[Galaxy S II Original Android Development] lrcquest:
all in the sig!
[Galaxy S II Original Android Development] v1rtu4l:
very surprising that your boot animation does not work anymore after flashing a kernel that does not support boot animations :rolleyes:
[Galaxy S II Original Android Development] snailmale:
Ive been on K2-18 for the past 2-3 days and it's been working really good. But I just had my phone lock up (screen and hardware buttons unresponsive) while typing a message, and it auto-rebooted.

Hopefully it was a one-off case. Im on XXKI4 Stock, with KH3 modem (been on this combination for a few weeks with no problems)