yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] alexkno:
yes, that's what I meant, test6 seems to better for battery test8 and 7 better for performance.

So now it's up to hardcore to balance what is more important and to find probably a balance which satisfies both, those who need speed for games and those who are willing to have more battery with a bit less performance
[Galaxy S II Original Android Development] shahulvm:
Test7 or test6 for battery+perf

I definately agree that test8 is a battery drainer. But is it the case for test7 as well. As in my battery profiling test, I found test 6 and test 7 were almost on par in terms of battery life, but test7 had an edge in terms of performance..
[Galaxy S II Original Android Development] Mustoura:
+1 i found 6 best battery saver
[Galaxy S II Original Android Development] spaxx24:
I dont find any search button for the thread? :S Wierd. Does this work with cm7?
[Galaxy S II Original Android Development] Vahidmoby:
Test it or search it ;)

i dont tell you :D maybe it Does ;)

NO IT DOESN't please SEARCHHHHHHHHH
[Galaxy S II Original Android Development] hardcore:
K2-18-test9:

- Enabled CPU hotplug with optimizations
[Galaxy S II Original Android Development] spaxx24:
PLEASE REEEEEEEEEEEEEEEEEEEEEED, the search button is gone.
[Galaxy S II Original Android Development] Vahidmoby:
@Hardcore

Test 9 : PREEMPT Mode Or PREEMPT_VOLUNTARY Mode ?
[Galaxy S II Original Android Development] shahulvm:
Doesnt work in CM...only stock

---------- Post added at 09:05 PM ---------- Previous post was at 09:02 PM ----------

Hi, for normal usage do you notice any difference between preempt and preempt voluntary in terms of battery or perf?

Appreciate your answer
[Galaxy S II Original Android Development] It_ler:
Just flashed SpeedMod K2-18-test9.

After reboot, all apps and app folder are OK.

So last time (all app were put out of the app folders in my app menu) it was just an accident caused by the sequence of the steps I have done after flashing the kernel.

But I had to reboot twice to see all my widgets on home screen(s).

Now doing my first tests and report my results later.
[Galaxy S II Original Android Development] Vahidmoby:
i change many kernel of speed, PREEMPT and PREEMPT_VOLUNTARY

and i checked with battery monitor app

it seems PREEMPT mode is better for battery with same Condition even Place (in my room :D) for Performance didn't any diff

this is my expriments with kernels maybe i'm wrong!

can anyone Confirm That PREEMPT better than PREEMPT_VOLUNTARY?
[Galaxy S II Original Android Development] BrandoHD:
He's right, where is the search button

Many many thanks hardcore
[Galaxy S II Original Android Development] Vahidmoby:
i see the search Button!! on the top of page :D and it works
[Galaxy S II Original Android Development] v1rtu4l:
it probably had to do with the wiping of dalvik cache and cache partition (which i did when i had that icon problem last time)
[Galaxy S II Original Android Development] shahulvm:
Each thread had a search box and thats lost now :(

---------- Post added at 09:24 PM ---------- Previous post was at 09:22 PM ----------

somehow even I feel better battery life with preempt....may be alittle when compared to preempt_voluntary...

Will await for more reviews on this...

All this just shows that reality is little different from theory
[Galaxy S II Original Android Development] It_ler:
Here my first results concerning performance of SpeedMod K2-18-test9:

Quadrant Standard (3rd run): 4650 points (a little bit less than Test7 and nearly the same as Test8 and Test2)

CF-Bench (3rd run): Good native score (and as consequence good overall score too), but a little less java score than Test7.

NenaMark2: a slightly higher fps result than Test8, so Test9 is my new highscorer.

All other benchmarks show similar results for all SpeedMod K2-18 kernels so far.

Over all I would say that Test9 is nearly as fast as Test7 and Test8.

Now I want to examine its battery savings.

I will report as soon as I have got reasonable results.

---------- Post added at 02:49 PM ---------- Previous post was at 02:44 PM ----------

Yes, I think that it depends on the sequence when I wipe cache partition and Dalvik cache.

Last time I wiped the cache directly after flashing the kernel - on the first/initial boot. And then I had the empty app folders in app menu.

Now I wiped the cache in the second boot after flashing, and all apps are still in the correct app folders in app menu.

That's the way I will flash all the next kernels, as I do not want to re-organize my apps again.
[Galaxy S II Original Android Development] anisbombaywala:
For the time being we can use the Advanced Search icon (the grey one like settings) right on the top of the page.
[Galaxy S II Original Android Development] dragon135:
I got nenamark2 new high score of 49.0fps with k2-18 test 9.
[Galaxy S II Original Android Development] SaneinOne:
I never wipe change before/after flashing kernel. No need IMO.
[Galaxy S II Original Android Development] bkraptor:
Can anyone please answer this question?
[Galaxy S II Original Android Development] Tyrol:
Hmm it could just be me, but I'm getting micro-stutters on the Tapatalk app and just general stutter when I'm scrolling through stuff (homescreens, etc) on the new Test9. Never got that in Test7 or Test8.

Will monitor the battery life.

-----------------------

Tapatalking to the beat on Galaxy S II.
[Galaxy S II Original Android Development] tonysac:
+ 1... as concern scrolling through homescreens...

Sent from Galaxy
[Galaxy S II Original Android Development] ewokuk:
ok theres so many test versions of 17 and 18 now i dont have a clue which to use anymore. i tried k17 test 2 i think, and had no problems but dont know how good this is compared to the others.

I tried k18 test 8 yesterday and batter life was great, except when i run one particular app which now seems to use 1200mhz all the time and drains battery (and i dont THINK it did before but i may be wrong and havent noticed it on anything else, is it even possible for a particular app to run at 100% speed on one kernel and not on another?), its only a trading app from capital spreads so theres no reason it should use 1200mhz at all, i just wiped cache and dalvik to see if thats what might have caused it but that had no effect it still constantly runs at 1200. its doing it on test 9 as well so i guess it has always done it and i never realised before.

screenshot attached of 3% drain over 10 hours overnight using test 8.

going to try test 9 now.
[Galaxy S II Original Android Development] navodwickra:
does anyone have the test 7 CWM file ?
[Galaxy S II Original Android Development] madpete:
Test 9 seems very battery efficient so far
[Galaxy S II Original Android Development] AndroidGX:
18-test9 has a bad battery life on my device (in use + cpu idle), 18-test8 is still the best for me so far.
[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

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

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

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%

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] mdbde:
@amdpowerfist

Thx for sharing again. Til now test 7 and 9 rocks on my device!

I use checkrom 3.11
[Galaxy S II Original Android Development] ewokuk:
useful stats AMD, judging by that id say test 8 is the best one, far less wakelocks and as shown in the battery test, gives better battery life than 9 (and quadrant score in 8 is higher, may not mean much but its still higher which cant be a bad thing).
[Galaxy S II Original Android Development] shahulvm:
To me, till date have a feeling that test6 nd test 7 were the best for perf+batt
[Galaxy S II Original Android Development] aers99:
Test 9 was superb 4 me... Drain only 2% overnight (8hours)..
[Galaxy S II Original Android Development] macuser:
K2-17 test 1 by far the best!
[Galaxy S II Original Android Development] mdbde:
What rom do you use?

Maybe we should name the rom we're using when posting 'test... Gives me the best battery and performance. We all get more information with every comment so.

I edited my previous comment..

Sorry, it is in your signature. Damn it doesn't show when using xda app. My fault
[Galaxy S II Original Android Development] hansation:
test9 is not for me. going back to test7 or gonna try test8..
[Galaxy S II Original Android Development] shahulvm:
Am back to test7 and battery life is pretty good for me..may stick on to it..
[Galaxy S II Original Android Development] borrego:
2-18 test9 battery life is great: Full 100% to 99% in 5.5 hour standby (data off, 3G)

test9 seems to have better wifi stability on weak signal, being able to reconnect after screen off/on. test8 seems to lose connection after screen off for extended period.
[Galaxy S II Original Android Development] iNeri:
Weird.

k2-v18 test9 on antutu bench give me +5400 -5500, with k2-v16 final i got +5900 -6030 points:confused:
[Galaxy S II Original Android Development] shahulvm:
Quadrant Benchmarks to Reality usage

All,

I really dont see a point in posting quadrant benchmark results. Clear your cache and see, the numbers would be lesser...perform the tests repeatedly and tweak some params for the scores to shoot through the roof. I dont think its good form of measurement. Instead, use the phone as to how u would use it on a normal day and report back if you see some performance lag. (indicate the type of lag if any, so that it can reproduced for others to test)

Guess the same goes with battery life. Every phone would get a decent battery life with 3G off, but thats now what we want...Ideally it would be good to have 0.5%/hr or lesser drain when the phone is in idle mode and % drain for 2-4 minutes of heavy usage...

All we want is a good combination of battery life and performance...
[Galaxy S II Original Android Development] eseregin:
Can see the same, test 9 good, really.

By the way, imho kernel better and better every new release...

Thanks hardcore :-)

ps

shahulvm, you right.

To be honest, for me battery even more impotant - speed on double core Cortex A9 cannot be slow :-)
[Galaxy S II Original Android Development] Vahidmoby:
@AMDPOWERFIST

TNXXX A Lot for Sharing , i'm Stick on Test 6

look at my resutl with Test 6 on Idle 30 min after fully charge and then restart:

2mA :D woooow

i'm Totally Agree with You :D
[Galaxy S II Original Android Development] AMDPOWERFIST:
Very nice score.

Mine occasionally goes down to 2mA but for measuring and posting conditions, i always fully charge, then leave my phone with the screen off for 1 hour exactly, then write the measurement up. But thats with my kernel and rom combination and all of the apps i have installed too running in the background.

so far they are all fairly similar results - around the 40 mark (for the more recent test kernel versions) nothing significant enough to suggest that there is a total breakthrough yet.
[Galaxy S II Original Android Development] billab0n6:
I really do not know what is wrong with my battery... With only 6 hrs, i'm left with 57%...

I'm running cog 777 speedmod 18-7, with using a few SMS, whatsapp, some minor browsing of fb and xda... I really dunno what happen to my battery!
[Galaxy S II Original Android Development] yabosid:
Have you changed version of betterbatterystats between 8 and 9? It seems as if the new version detects more or is better at specifying kernel wakelocks?
[Galaxy S II Original Android Development] Tyrol:
Test9 may stutter a little while scrolling, but battery-wise it's pretty fantastic. Idle overnight (6 hours) drained 3%, & I've managed to squeeze almost 4.5 hours of display time over the day (original, not extended battery here) with 5% left. Mostly surfing the Net, Tapatalk, playing with apps & games, etc.

Works great for me, except for the stuttering. With Speedmod, I feel like I won't have to worry about my battery when I go on holiday in a couple of weeks! :D Thanks Hardcore!

-----------------------

Tapatalking to the beat on Galaxy S II.
[Galaxy S II Original Android Development] iggybuenaventura:
why? I'm trying test 7 now 'cause my phone crashed while using opera browser on test 9. This is the first time it happened since i had this phone

EDIT: I'm back to test 8 'cause it just feels snappier than test 7.

I'm on Checkrom 3.1.1
[Galaxy S II Original Android Development] hardcore:
There should be no stuttering. Did you change your cpu governor or other settings using setcpu, scripts or some other tool? That may cause the stuttering.
[Galaxy S II Original Android Development] hardcore:
K2-18-test10:

- Disabled scheduler stats

- Disabled more debug code: KALLSYMS, STACKTRACE and LATENCYTOP
[Galaxy S II Original Android Development] pedestre:
I totally agree. I'd like people to check battery life with 3G on and sync (specially with push mail). It is in this situation when battery drains a lot. I've seen so many tests without a minute of 3G. These tests don't mean anything for me.
[Galaxy S II Original Android Development] billab0n6:
Look at my post from the previous page, test with images, running cog 777, speedmod 18-7... full sync and 3g on
[Galaxy S II Original Android Development] Tyrol:
No sir. I have no idea how to use those tools so I've never installed them on my phone. I'm running CheckROM Revolution v2.0.0, and the only mods I have flashed are to make it look good, lol.

I'll try the new Test10 you just released then, see if there's any difference.

-----------------------

Tapatalking to the beat on Galaxy S II.
[Galaxy S II Original Android Development] nikzDHD:
Test 6:

WiFi on, 3g on, email syncing during day manual sync during night, 2000mah battery:
[Galaxy S II Original Android Development] Vahidmoby:
@AMDPOWERFIST

We Waiting for ur helpfull Compairing & Result between Test 10 and Prev versions ;)
[Galaxy S II Original Android Development] It_ler:
I lost about 12% with SpeedMod K2-18-test9 over night (9 hours).

But I had wifi on (and synch and Talk and Skype).

So it is nearly the same battery drain than with Test8, but on Test5 I had only 5% under same conditions.

Current battery stats in SpeedMod K2-18-test9:

After 14h 40m 50s (a little bit day use and night "sleep" with synch/wifi/Talk/Skype on): 74% left

Awake: 2h 17m 25s

Screen on: 27m 57s

So Test9 seems to be a little bit better concerning battery life to my phone than Test8, but it is not the best battery saving SpeedMod kernel.

As SpeedMod kernels are way better than stock kernels, I keep continue testing new versions ... oh, Test10 is available.

I will flash it and be back with some results.
[Galaxy S II Original Android Development] roymustafa:
Third time Benchmark test, the fourth time was 4823...

[/IMG]
[Galaxy S II Original Android Development] mdbde:
Test 9 is perfection.. Hope test 10 outperform it without the debugging things we not need anymore.
[Galaxy S II Original Android Development] MaGiXeN:
With 18 test 6,7,8 and 9 not possible to flash in cwm as an update flash, every time I do this my phone restarts with no changes, but use i kernel flash with the Odin version in cwm it works.

17 test 1 in deep sleep only -1% in 4 hours and for me the best choice, 18 test 6-9 all use much more battery and they're not very useable.

I switch now back to 17test1 and hope for are better upcoming version then 18, but 18 sucks totally for me.
[Galaxy S II Original Android Development] mdbde:
I'm not sure, should test 10 be more efficient (speed and battery) without the debug code? I think it's a yes, but maybe anybody can explain?
[Galaxy S II Original Android Development] hardcore:
Yes it's pretty simple. Less debug code = more efficient. More efficient = faster and/or use less battery to do the same work.
[Galaxy S II Original Android Development] AndroidGX:
Flashed test10, it seems there is a problem with "Phone.apk" to launch (maybe?), as after 10 reboots, each time I need to wait 3-8mins to get the pin code window.

Never encountered this on other test series.
[Galaxy S II Original Android Development] concertiste:
K2-18 Test7&8 work well without wifi auto break problem but this problem come back in Test9&10:confused:... Also Test10 seem have a lot problem with some programs ex: MySettings. I recommend Test8 then Test9&10.:)
[Galaxy S II Original Android Development] morg01:
try flashing twice in a row . . . some roms need to be flashed twice in order to work so maybe its the same issue?
[Galaxy S II Original Android Development] billab0n6:
I too have everything on but I can't last a day at all... My battery keeps going down 1% in 50mins and it's getting damn frustrating!
[Galaxy S II Original Android Development] It_ler:
Here my first results concerning performance of SpeedMod K2-18-test10:

Quadrant Standard (3rd run):

4825 points (my new highscore)

CF-Bench (3rd run):

Less native and java score (and as consequence less overall score too) - compared to both, other SpeedMod and stock kernels. Very poor results.

NenaMark2:

exact same fps result than Test9, so both Test9 and Test10 are my highscorers now.

All other benchmarks show similar results for all SpeedMod K2-18 kernels so far.

Over all I would say that Test10 is very fast.

Only the results of CF-Bench show a worse performance.

I do not bother as that are only numbers. Real time smoothness is much more important.

Now I want to examine its battery savings.

I will report as soon as I have got reasonable results.

P.S.:

I had again an issue with empty app folders in my app menu.

After the first/initial boot after flashing the kernel, everything was OK.

I checked the app menu and all app folders were filled as usual.

Then I rebooted into recovery and wiped cache and Dalvik cache, then I rebooted the phone, and my app folders were all empty again.

Grrr ...

So, my theory that is depends on the sequence of flashing, booting and wiping the cache is not quite correct.

Next time I will try to use the new kernel without wiping the cache.
[Galaxy S II Original Android Development] mdbde:
There are no changes in kernel 9 to 10 other then the debug code removed? Maybe it's just me, but I think test 9 is smoother on my phone
[Galaxy S II Original Android Development] It_ler:
I can not confirm this issue.

Normal booting and starting of my phone using SpeedMod K2-18-test10.
[Galaxy S II Original Android Development] billab0n6:
look at my battery! I really do not know what is happening? ! Can anyone help me...
[Galaxy S II Original Android Development] shahulvm:
Couple of suggestions to help you.

1. You could disable the location service (facebook is using it heavily)

2. You could disable the chat in facebook app also lower the refresh/notification interval

3. Lower your gmail sync freq

---------- Post added at 06:25 PM ---------- Previous post was at 06:25 PM ----------

Couple of suggestions to help you.

1. You could disable the location service (facebook is using it heavily)

2. You could disable the chat in facebook app also lower the refresh/notification interval

3. Lower your gmail sync freq

You can give more information on the Rom versions etc..
[Galaxy S II Original Android Development] intronauta:
with versions 1,6,9 and 10 I've the "black/green screen of death" problem after unlock. With Test 8 never happened to me.

Maybe "CPU hotplug" is buggy with some terminals?

KI3 (build+modem)

No Setcpu, scripts or similar "tweaks"

In my SGS2, K2-17test1 and K2-18test8 are the most stable builds. Good balance between performance and battery life and no problems so far.
[Galaxy S II Original Android Development] Tyrol:
@Hardcore, just flashed Test10 and there isn't the stuttering I experienced in Test9. Could be because of the kernel or something else; I did wipe the cache and Dalvik after flashing.

-----------------------

Tapatalking to the beat on Galaxy S II.
[Galaxy S II Original Android Development] Vash:
Take a look at your partial wakelocks, facebook is ripping your battery apart.

Either disable facebook notifications completely (recommended) or disable location services and you'll get your battery back :)
[Galaxy S II Original Android Development] mariotme:
On test 10 phone didn't go to due sleep in 5 hours.

Only reboot fixed it
[Galaxy S II Original Android Development] lynx2k50:
Hey HC.

Here are some new Mali drivers [21 November 2011]:

http://www.malideveloper.com/develo...rce-mali-gpus-linux-kernel-device-drivers.php

Maybe they are intersting for your kernel.
[Galaxy S II Original Android Development] shahulvm:
@hc

Any chance of getting preempt with test10 as test11 to compare battery life
[Galaxy S II Original Android Development] formidabilus:
I think you must wipe cache and Dalvik before flashing, not after.
[Galaxy S II Original Android Development] Vahidmoby:
+1

.............
[Galaxy S II Original Android Development] billab0n6:
How do u disable location service in Facebook? It's from settings?
[Galaxy S II Original Android Development] billab0n6:
@shahulvm... I'm on cog 777 with,speedmod 18-7
[Galaxy S II Original Android Development] shahulvm:
1. Untick the below

settings > location and security > Use Wireless Networks

settings > location and security > Use GPS Satellites

2. Facebook > chat > options > offline

3. Facebook > options > settings > refresh interval
[Galaxy S II Original Android Development] billab0n6:
Will try now, thanks lots! Hope this work....
[Galaxy S II Original Android Development] kartalgurhan:
Been using K2-18-test9.

Please, if somebody can make a comment on the attached file that I produced by betterbatterystats.

-I have push email on always.

is this drain normal?

thank you
[Galaxy S II Original Android Development] hardcore:
K2-18-test11:

- PREEMPT mode
[Galaxy S II Original Android Development] myshu:
@hardcore

http://www.malideveloper.com/develo...rce-mali-gpus-linux-kernel-device-drivers.php

check that out. open source mali drivers. updated from what comes on 2.3.5 stock

Current Release

r2p3-01rel0 - [21 November 2011]

Mali-400 GPU Linux Kernel Device Driver r2p3-01rel0

Download the Source Code