yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] Fille84:
For me test 6 is awesome, and that is when it comes to battery. I dont really care about smoothness, but its smooth enough for me.
[Galaxy S II Original Android Development] interfreak:
Doesn't run smoothly on CheckROM. Buttery smooth on Wanamlite!
[Galaxy S II Original Android Development] gasmias:
speedmod test 7 =
[Galaxy S II Original Android Development] planetf1:
3 hrs in. just 7 mins screen. still on 99% battery.nice start. Numbers more valid after longer but looking good
[Galaxy S II Original Android Development] Vahidmoby:
...............
[Galaxy S II Original Android Development] herly:
Flash test7 and back to test2.

On DXKI1 test2 no lag.
[Galaxy S II Original Android Development] Vahidmoby:
hahahaa

ur right

with test 7

my phone is running tooo fast,i can't catch it :D:D

i Called Test7 : TRANSFORMATION of GALAXY S II inTo CHUCK :D
[Galaxy S II Original Android Development] eXnikaru:
Why I have the feeling that you keep promoting for wanamlite rom since quite a lot pages ago..and keep comment on Checkrom is not smooth..

Every rom have it`s Pros n Cons ..Users should try it yourself..
[Galaxy S II Original Android Development] gasmias:
On checkrom 3.1.1 test 7 runs very very smoothly..
[Galaxy S II Original Android Development] john291:
Yes here to!

Great kernel.

Lets see what the battery does.
[Galaxy S II Original Android Development] anisbombaywala:
@interfreak.. you already got some spankings in the CheckROM thread for doing this. And now you are doing it here. What's up mate?
[Galaxy S II Original Android Development] AndroidGX:
18-test7 seems not battery friendly, did 5 mins web browsing (text only with 3 loaded pics), refreshing go launcher facebook and twitter widget 2 times, nothing else extraordinary, and already lost 8%.

At idle, lost 1% in 1h47. A bad score again.

Thinking to flash back 18-test3 which is still the best (about battery life) for my device.
[Galaxy S II Original Android Development] rajaspidey:
works perfect for me!! stock XWKF3!!
[Galaxy S II Original Android Development] R3BOOT:
That's because you're doing it wrong ... sheesh. /rollseyes
[Galaxy S II Original Android Development] FrenchSparda:
Just flashed test7... so smooth on KR KI8....see you monday for battery life ;)
[Galaxy S II Original Android Development] shahulvm:
no disrespect to any rom developers around there...as each one puts their hardwork..

indeed, i had tried the following roms before settling to go with wanamlite rom..on the below roms, i had some issue or the other...issues were related to battery life, performance lag, app crashes, sod..spent nearly 3 weeks....tested more than 8 roms...lost count of it... following are the ones i remember...tried 4 kernels and 10 modems...

clean&simple, checkrom, omega,dlevrom2, mikimod, criskelo, hyperdroid, cognition...

to me wanamlite is one of THE BEST roms to go with..finally settled down with wanamrom, speedmod kernel, xxki4 baseband, ics theme by bigbanghd

---------- Post added at 09:40 PM ---------- Previous post was at 09:34 PM ----------

there is nothing to promote here...we are not the devlopers of that or anyway related....it was the best and hence sharing the info...

i guess its a good idea to share good things and thats what this forum is for...yes, you are free to ignore the fact and try it for yourself...since ppl like us tried using our precious time, we report it so all can benefit from it.
[Galaxy S II Original Android Development] bryant_16:
Hi there, if I flash a 2.3.5 firmware, do I need to wipe the phone?
[Galaxy S II Original Android Development] shahulvm:
Wipe is required..
[Galaxy S II Original Android Development] bryant_16:
How do I backup all my data and apps?
[Galaxy S II Original Android Development] Seifer1975:
Wow! You must have a very delicate phone. Don't forget to wrap it up in cotton wool.
[Galaxy S II Original Android Development] shahulvm:
LOL...

Not delicate...most suffered one...if it had a mouth...it would have yelled at me for tinkering with it every now and then....
[Galaxy S II Original Android Development] dmt:
I'm having strange behaviour with 18 test 3. It started with battery drain compared to 16-2

The first days nothing seems wrong.

Then sometimes it refuses to wake. Screen stays black.

Sometimes it won't start dialing.

To many issues for me with this one. For now I think I switch back to 16-2

I'm using original samsung rom KI2 build. Only changed kernel...
[Galaxy S II Original Android Development] shahulvm:
you are going to wipe cache and dalvik cache alone...you dont need to do factory reset. even if ur doing factory reset then you can use titanium app to backup app+data..

use cwm to do complete backup before you make any changes..
[Galaxy S II Original Android Development] stylez:
Rather than going back try Test 7, test 3 wouldn't be one of the choices of kernel for everyday use.

Still playing with test 7 not had long enough to comment on speed/battery as bedding in....
[Galaxy S II Original Android Development] bryant_16:
You mean cwm will settle all the backup and restore? Then titanium app is for what
[Galaxy S II Original Android Development] It_ler:
Nearly same experience after half day of "normal" usage on my phone.

I will complete a full battery cycle before considering to flash another kernel.

Less battery life for such a fast kernel ... I think that's the price to pay ... unfortunately.

P.S.:

There are already many kernel wakelocks. Maybe that causes the battery drain on my phone. I will examine this for another while.
[Galaxy S II Original Android Development] shahulvm:
cwm backup is a complete backup..that is (modem+kernel+rom+app+data)..

titanium backup - (app or app+data)

cwm restore is used when u have messedup with flashing and want to revert to last working condition..

titanium restore is done after flashing modem/kernel/rom successfully and then to restore your apps and data..

hope this clarifies :)
[Galaxy S II Original Android Development] It_ler:
With CWM recovery mode you can make a system backup (and recovery).

So that is for the system (Firmware system + data) - so it is a complete backup.

With Titanium Backup you can backup (and restore) all your apps (+ app data) - nothing else.

So, it might be wise to use both to backup the system and apps (+ data).

If you want to be on the "safe" side, you should also copy the efs folder of your internal sd card to the external sd card or to your PC.

I never had to use this backup, but some other users already had to after bricking their phone completely.
[Galaxy S II Original Android Development] shahulvm:
+1 absolutely agree that test6 is again snappy and battery friendly..infact better than test3
[Galaxy S II Original Android Development] djunited:
there is something wrong with test2. it just doesn't lag at all :D i always end up getting back to it. all the others will start lagging at some point. not test 2 though
[Galaxy S II Original Android Development] hansation:
currently at test-5. to tell you guys, i cant choose between 3 and 5... both have great battery. the only diff is test 5 is on screen battery eff. and test 3 has superb idle savings
[Galaxy S II Original Android Development] Vahidmoby:
in idle test 3 better than test5 ?

what exactly diff? (how many percentage in hours (in idle) ?) is it significant?
[Galaxy S II Original Android Development] mstolpner:
Hardcore, would you consider increasing charging current? I am not sure with what version it started but the charging in my car does not seem to keep up with the phone consumption while Google navigation or Torque is running anymore.
[Galaxy S II Original Android Development] morg01:
This was tried previously, and then reverted because it caused instabilities in some people's usb ports?

Sent via courier pigeon
[Galaxy S II Original Android Development] akbarhash:
Hi. Can someone who flashed the k18 test 7 check if banding is still there. I dont want to spark something but to me it seems heavily reduced.

Sent from my GT-I9100
[Galaxy S II Original Android Development] mstolpner:
Do you know if I can do it without recompiling the kernel, maybe just by modifying some conf file?
[Galaxy S II Original Android Development] BrandoHD:
Test 7 was draining a lot for me, especially in idle, back to test 6 and all us well again.

Sent from Samsung Galaxy S II
[Galaxy S II Original Android Development] ludester:
Battery life test 7 is superb.
[Galaxy S II Original Android Development] Vahidmoby:
it's too Soon to Judge

let it Discharging to 1%
[Galaxy S II Original Android Development] alexkno:
Just gone to test 7, test 6 was great, had 30 hours battery with 2hours display and 20 hours 3g with gmail and talk sync on all time and still 30% left.
[Galaxy S II Original Android Development] diekgait:
First of all, great kernel! I love it. But the there is one problem that is not related to your kernel but mayby you can fix it. Is there a way to add newer wifi drivers to the kernel that fix the wifi roaming problem the Galaxy SII has?
[Galaxy S II Original Android Development] ludester:
Yes but by now im down to 85ish% with same useage pattern
[Galaxy S II Original Android Development] akbarhash:
hi hardcore,

small question, did you make any changes to the display side(drivers) with the k18 test 7?
[Galaxy S II Original Android Development] MrFishiz:
So what is the best test battery wise for SGS II?

5 6 7?
[Galaxy S II Original Android Development] nicolasf:
I have the same question. It seems to me like sharpness is reduced. Not really sure though.
[Galaxy S II Original Android Development] akbarhash:
Can you check if bands have reduced.

Sent from my GT-I9100
[Galaxy S II Original Android Development] john291:
Hello hardcore i tried now k18 test 7 but after a while my screen turns green.

When i lock it and unlock its good again.

I had this with k18 version 3 also,

And i thought version 2 too but that i am not shure.

Do you know what causes the problem?
[Galaxy S II Original Android Development] henriquesb:
Besides thanking you for such great kernel, I want to express my admiration for being able to progress with such diverse feedback! :S Geez...
[Galaxy S II Original Android Development] Thedonk13:
im curious, test 5 was running pretty well on my phone, since then, test6 and test7 both have significant amounts of kernel wakelocks? any particular reason why? im assuming these shouldn't be there, and both times i wiped cache/delvik and restarted...still kernel wakelocks
[Galaxy S II Original Android Development] Seifer1975:
+1. I felt there was something different with the display, though i cannot put my finger on what.
[Galaxy S II Original Android Development] interfreak:
Back to test 6 for me, display did look..different..
[Galaxy S II Original Android Development] Tyrol:
Overnight idle is a lot better on Test 7 than 3 or 5 (for me, anyways). Over a period of 6.5 hours:

Test3: -5%

Test5: -9%

Test7: -3%

Looks promising, will monitor on-screen drain now.

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

Tapatalking to the beat on Galaxy S II.
[Galaxy S II Original Android Development] BrandoHD:
How do you determine kernel wake locks as opposed to and app?
[Galaxy S II Original Android Development] shahulvm:
use better battery stats to determine the process
[Galaxy S II Original Android Development] Radikaal:
k2-18test7 with deadline as scheduler is really smooth when browsing and scrolling in menus and scrolling in homescreens. I think its much smoother then the default CFQ. Only thing its not smoothest at (compared to siyah) is scrolling in the recommended section in market (with alot of graphics) there it shows a bit of lag. I do not notice any change in screen sharpness or how the screen looks like some people seem to do, however been on siyah alot lately could be why. Would be nice to have beta6 still up for download to compare but its not in opening post.

Also hope you will put in sio as io scheduler one day since its the smoothest and best i think.

Can't comment on battery, but nice job otherwise.
[Galaxy S II Original Android Development] snailmale:
I'm still on K2-17 test 1. Have enjoyed good battery for the past week or so, and managed to squeeze out 51 hours of battery in 1 cycle. Unfortunately, now I seem to be experiencing fairly severe kernel wakelocks, particularly from svnet. Battery life remains reasonable, but not great, but CPU spy tells me my phone is only getting about 50-60% sleep even when I don't touch it. I've wiped cache and dalvik and will see if things improve.

I'm on XXKI4 stock.
[Galaxy S II Original Android Development] shahulvm:
same goes with me...performance was good in test7 but at the expense of battery life,second core shouldnt be kicking in often :(, moving back to test6...test6 was good..but suddenly overnight i lost 20% over a period of 8 hours (not sure why)...let me give it another try...second core shouldnt be kicking in often :(

now going with test6..
[Galaxy S II Original Android Development] Brotuck:
Test 7 is really working well for me. Batterylife is very good now. Smoothness all over. Thank you hardcore !
[Galaxy S II Original Android Development] morphjk:
Yeah same for me. Very happy with this version
[Galaxy S II Original Android Development] shahulvm:
Hows the battery life of test7

Hi all,

I know and also read about the performance aspect of test7 .

how do you all find the battery life of test7...any comments pls
[Galaxy S II Original Android Development] Tyrol:
Test7 works amazingly well for me. First time I've been able to achieve close to 5 hours of display time out of 16+ hours total. Performance isn't compromised either.

Thanks, Hardcore!

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

Tapatalking to the beat on Galaxy S II.
[Galaxy S II Original Android Development] morphjk:
Battery life has been very good for me. Very happy
[Galaxy S II Original Android Development] eseregin:
The same here, cannot complain at all, smooth and batary friendly for me
[Galaxy S II Original Android Development] Lovehepburn:
Agree, test 7 is quite smooth and battery friendly for me too. Test 2 was even smoother though.;)
[Galaxy S II Original Android Development] john291:
Nobody has this problem?

I dont have this the stock kernel.
[Galaxy S II Original Android Development] apeiron6:
Nope. Beta 7 works great :-)
[Galaxy S II Original Android Development] LauCass:
I got the same problem once with k18-t7.
[Galaxy S II Original Android Development] john291:
Do you still use the kernel?

It scares me a little.
[Galaxy S II Original Android Development] shahulvm:
Benchmarking Battery Life

Since battery life has been one of the focus point or the focus point of roms, kernel etc..I thought to share with you all an app that we can use to bench mark battery life scores..

Antutu Tester

-- Battery Test: Let the phone run for several hours, through the consumption of battery power to calculate your score.

Note: The battery test takes a long time, you may need to wait 5 hours to complete the test
[Galaxy S II Original Android Development] hansation:
low ringtone alert using 17. other than that all is good
[Galaxy S II Original Android Development] LauCass:
Yes, I'm still using k18-t7. It only happened one time the first day and no more problem these two last days.
[Galaxy S II Original Android Development] roufneck:
K18-test5 had huge scrolling lag for me

K18-test6 had minor lag

K18-test7 is lag free, very fast and smooth
[Galaxy S II Original Android Development] sgx100:
Hi,

I flashed the k18 3 and 5 and was very dissapointed to see the battery drain.

Just a query - Is the k18t7 any better in battery department.

Im flashing the latest kernel again and hope to see some improvements.

Will post the screen shots...of the battery drain.

Thanks
[Galaxy S II Original Android Development] lrcquest:
What is the best method to install a busybox? I wanted to install the new robot font! Is it safe to go with the apps in the market like "busybox" or "busybox installer". Also, which version of busybox?
[Galaxy S II Original Android Development] shahulvm:
you can go with either v1.19 or v1.18
[Galaxy S II Original Android Development] newHere:):
can you please tell me how do i re-enable the logcat?

i am probably too noob to understand what to do with this instructions...

thanks in advance :)
[Galaxy S II Original Android Development] Brotuck:
If you do not understand the intructions then you do not need Logcat at all.
[Galaxy S II Original Android Development] newHere:):
i do need it... :rolleyes:

i started to develop small apps and i obviously need the logcat to understand what happens in my app.

i don't want to use the android simulator because its too slow and i need to use the bluetooth of my device...
[Galaxy S II Original Android Development] rajaspidey:
only devs need logcat :-) we don need it!! enabling log cat ll add lil bit load to cpu!!

anyways I don need it!!

& for your question u need to enable it via adb!! how to tutorials for adb is available in this forum so search!!
[Galaxy S II Original Android Development] sydknee:
Very happy with test 7.

first tried speed mod on about version 12 and was very impressed. Tried each of the newer ones and by the time got to 17 found battery awful. Then on the 18s found lag as well as bad battery.

had turned my back and reverted to siyah.

But for me test7 is the best ever. Super fast, huge amounts of deep sleep,.and so far amazing battery.

Wow!

hardcore
[Galaxy S II Original Android Development] koreancanuck:
I have not paid much particular attention to the lag of the device using these test kernels because frankly, I don't think I've seen any.

Regarding battery life, used my phone yesterday for a good 12 hours. Was inside 95% of the day so the screen was probably on low brightness (on auto). Had wifi on 95% of the time, played a lot of games (fruit ninja, wind up knight, sprinkle). In total the display time usage was about 3h30m with 20% battery left.

I noticed similar usage in test 6. I'll try to report battery life on further kernels under similar conditions.
[Galaxy S II Original Android Development] eseregin:
If he told he need, better belive people, dont think for them...

Answer Easy

add line ANDROIDLOGGER to file /system/etc/tweaks.conf

i suggest you use RootExplorer to modify system files.

You need root of couse
[Galaxy S II Original Android Development] newHere:):
thanks for your answer :)

i can't find the file "tweaks.conf" on this directory...

of course i have a root and i'm using Root Explorer...
[Galaxy S II Original Android Development] shahulvm:
vbus_present taking alot of cpu

Hi Hardcore,

I saw unusual battery drain in test7, while checking i see vbus_present to be top cpu consumer..I dont have any idea what this process is related to. Can you pls help
[Galaxy S II Original Android Development] Seifer1975:
This is the wakelock when phone is charging. Perfectly normal unless you are saying this is high even when you have not charged the phone.
[Galaxy S II Original Android Development] rajaspidey:
yea while charging your phone won't sleep!!
[Galaxy S II Original Android Development] shahulvm:
I charged the phone till it 100%..then i used battery calibration app and removed batterystats.bin file. 30 mins without the charger and I see 4% battery drain with vbus_present having maximum wakeclocks :(

Update :- Resolved after a reboot
[Galaxy S II Original Android Development] rajaspidey:
or you can use adb!! it ll be easy!! connect your device to PC enable debugging!! power up adb & enter all those lines of code!!

edit: it ll be easier if u already used adb & know how to use it :-)
[Galaxy S II Original Android Development] rajaspidey:
K17 test 1 is perfect! with great battery backup too ! but k18 is faster!!

wish hardcore can make it official release!!
[Galaxy S II Original Android Development] newHere:):
this is the problem... i don't :p

i guess i will learn how to do it...
[Galaxy S II Original Android Development] It_ler:
+1

I have also recognized several kernel wakelocks in SpeedMod K2-18-test7 that I had not with other SpeedMod kernels.

That seems to be the reason why the battery life for me is not as efficient as for others.

But it is still much better than running on a stock kernel.

I will continue testing Test7 in a second charging cycle.

First charging cycle has the following results for me (on my phone with my "normal" usage: synch on, three email accounts, calendar, news, wifi on, Google Talk and Skype active, etc.):

After two days (battery time = 1d 4h 35m 31s): 34%

Wifi on: 20h 52m 09s

Awake: 6h 28m 26s

Screen on: 46m 39s

Deep sleep: 22h 08m 56s (77%)
[Galaxy S II Original Android Development] fidorulz:
Running test 7 and phone took about 10sec to wake from sleep once today when I pressed the home button

Was fine after

Battery also isnt as good as maybe test 6 for me
[Galaxy S II Original Android Development] lrcquest:
An unusual thing happened... The I lost the xda app from my app drawer. But app is still there in the system as I can place n access the app from home screen.

Edit. Got back the app upon reboot.
[Galaxy S II Original Android Development] ImSherlocked:
K2-18-test6 first cycle results:
[Galaxy S II Original Android Development] john291:
And now my screen turned red instead of green.

I think i must leave version k2- 18 version.

A pitty i liked the kernel.
[Galaxy S II Original Android Development] mwatson:
I tried flashing this and now get a yellow triangle saying "Firmware upgrade encountered"

Is there anything I can do?

I've tired flashing a stock kernal, a stockl rom and no luck?!

Looks bricked to me!
[Galaxy S II Original Android Development] lrcquest:
Better move over to the last stable kernel.
[Galaxy S II Original Android Development] mdbde:
18-test 7 with checkromrevo 3.11 and ki1 radio is impressive! I'm a poweruser. Much browsing with opera mobile, full sync with 2 google accounts and a lot of what's app. Screentime 6 hours and battery is at 20%. Yeah! Test 7 is the smoothest and best battery speedmod kernel I ever tried.
[Galaxy S II Original Android Development] shawn_pro:
Hey Hardcore i am really a fan of your Kernel since i9000.

I enjoy each and every version and really appreciate your hardwork.

Thanks once again.
[Galaxy S II Original Android Development] SaneinOne:
Using K2-18-test7. Touch interface frozen. Power button only dimming screen, not shutting screen off. Power button held to reboot and issue resolved. Using Frankenstein KJ3 FYI.
[Galaxy S II Original Android Development] StevenBX:
I'm experiencing the same. I've had this twice in an hour. Experienced difficulty getting Odin to recognise the phone in recovery mode too, and had to do a battery pull. Also, at one point the phone thought it was charging when it wasn't plugged in at all...
[Galaxy S II Original Android Development] alexkno:
Test 7 takes more battery for me compared to test 6. Same usage now 3h display and wifi and sync on for 9h and only 20% left. Bbs shows no particular wakelock but there is 1.5h more awake time than display. Something seems to drain.
[Galaxy S II Original Android Development] eseregin:
May be not kernel, but Rom problem?

Realy, never had it...

Wakelocks - pretty sure not kernel, but Rom specific, program specific, settings specific, even phone specific... For example see coupe post before - 2 days working, dont think could be better....
[Galaxy S II Original Android Development] SaneinOne:
Pretty sure it's not ROM related, have been running KJ3 since it leaked. Could just be a random issue, it's only happened the one time.
[Galaxy S II Original Android Development] apeiron6:
I'm running kj3 rom and have no problems as you described. Running smooth with great batteri life.
[Galaxy S II Original Android Development] Igor 3:
..........................

sorry, wrong topic
[Galaxy S II Original Android Development] SaneinOne:
Don't get me wrong, kernel is running really smoothly! Could have just been a random issue.
[Galaxy S II Original Android Development] pacc:
I was getting better value (performance/battery) ratio with test6.

When using the phone, test7 drains battery very quickly.

Until now only two good options test6 or test2.