yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] jameslfc5:
is SiyahKernel v1.7.8beta3 any different to the SiyahKernel v1.7.8 that I downloaded earlier today? :)
[Galaxy S II Original Android Development] gokhanmoral:
yes. that 1.7.8 you downloaded earlier today can be considered as beta0

I think the last 3 lines in the changelog is new and also it has some stability improvements.

oh,and more responsive ondemand governor.
[Galaxy S II Original Android Development] minidou-77:
Yeah it works great

But please don't ask it there anymore since this kernel works on every GB build (2.3.x)
[Galaxy S II Original Android Development] sahibunlimited:
Mine is ids_arm: 16 hpm_class: 27

What's ur?

And how good are mine?
[Galaxy S II Original Android Development] veyka:
If you crash at 1.6ghz then it just means your cpu cant take it, the phone is fast enough for almost everything at 1.2ghz, or even 1ghz so you are not going to suffer from not being able to overclock.

Mine is ids_arm: 19 hpm_class:18

I can do 1.6ghz without crashing but dont want to.
[Galaxy S II Original Android Development] d8389:
Now I can confirm, that USB host does not work with 2.6.6i and work with 2.6.6, but cause SOD when disconnecting mouse.
[Galaxy S II Original Android Development] marvi0:
Ok already searched, but cannot find any links, to the so called thunderbolt thread or link, within this thread?.
[Galaxy S II Original Android Development] PedroMRP:
see pikachu01 signature.
[Galaxy S II Original Android Development] XDA mark:
Search the previos pages for a guy called "pichacu01" and look in his sig.

Or go to the other developemnt forum of the SGS2 forum

Lol I wrote his name wrong. And I used to play so much pokemon.
[Galaxy S II Original Android Development] nickname_marco:
it happens the same here.

i noticed that running -manually- a script which simply modifies the frequency table and lowers voltage steps inevitably messes ondemand's behavior: it's stuck most of the time at 800~1200mhz even when not required, and this is constantly reproducible.
[Galaxy S II Original Android Development] stevehkim:
does it happen without scripts?
[Galaxy S II Original Android Development] PedroMRP:
My device must be immune to some bugs that are posted in here... I can't reproduce them...

ondemand scales up and down properly,

no wifi problem,

normal battery draining,

usb mass storage connects to my laptop running OSX Lion.
[Galaxy S II Original Android Development] CamoGeko:
Same here, nothing that has been mentioned so far applies to me.

Maybe it's an issue with some specific ROMs.....

Communicated from a Galaxy far far away via an XDA premium neurotransmitter while DJ'ing on The Enterprise.
[Galaxy S II Original Android Development] el_tute:
with thunderbolt 2.3.8, I can not pass from 1.2 in conservative, no matter if I set to run on boot or not (rebooting the phone of course).

I've remove thunderbolt scripts and everything runs ok now, I will try thunderbolt 2.3.7
[Galaxy S II Original Android Development] nickname_marco:
no, it doesn't without scripts..

i am running siyah 2.6.6i and thunderbolt! 2.3.8 (S98bolt_siyah script modified as i wrote)

you can clearly notice the cpu being stuck at, say, 800-1200mhz on extremely light load (5~10%);

checked it a few times using quick system info pro.
[Galaxy S II Original Android Development] :
same here Broski...Kernel works perfect for me..Had issue with usb storage but after wiping cache and then dalvik and then reflashing ther kernel worked fine..Regarding wifi, the bars in statusbar drop down but still i have connection..So what i do i just press it on the drop down menu to switch off then press it toturn it back on again and it works fine from there on
[Galaxy S II Original Android Development] legionxx:
yea mine was just staying on 200mhz most of the time and not getting any deep sleep. you can try wipe cache, d.cache, fix permission, flash kernel cleaning script and reflash 2.6.6i, see if that works for u? i did achieve deep sleep after that. however, i cant get my phone to detect usb host. but that's okay, i'll just wait for newer updates/fixes. as for now i'm so enjoying the battery life of this kernel compared to yesterday's :p i got a screen on one time with ondemand though(slight issue), now i'm trying out sio with conservative, deep sleep function seems normal too.
[Galaxy S II Original Android Development] PedroMRP:
Why people keep posting here Thunderbolt! related problems...

Any problem that is related to Thunderbolt please use this thread.

Please leave this thread SiyahKernel related only!
[Galaxy S II Original Android Development] sahibunlimited:
I wanted it just to show my friends:D:cool:

So no way?

Thanks anyway!
[Galaxy S II Original Android Development] antt00:
Me too. No SOD so far, no usb problem, no cpu scaling problem. Wifi i have not fully tested cos seldom use it. No sleep issue.

But ondemand gave me a weird behavior earlier, my device start to slow down and lag, used ram only 4++Mb. Not many app running. Reboot solve it and the problem haven't resurface again. Will monitor and see.
[Galaxy S II Original Android Development] gokhanmoral:
same here... (for v2.6.6i, not 2.6.6)

but my vote doesn't count :)

anyway. I made some more changes in governors. and I decided to modify conservative governor, not just the parameters but the behaviour. I will name it "darthvader" :)

ondemand is mostly the old ondemand. if you want it to be more snappy then you should use setcpu or scripts to tweak the settings.

I will also release a kernel for korean version of sgs2.
[Galaxy S II Original Android Development] PedroMRP:
If the ondemand will be mostly the old ondemand will you add ondemandx?
[Galaxy S II Original Android Development] nickname_marco:
i am not sure whether you are referring to me or not; anyway, i wrote i am running thunderbolt! scripts just for reference, in fact i am not even using S98bolt_siyah the way pikachu wrote it.
[Galaxy S II Original Android Development] AJ.Rockwell:
Hey folks, it's feedback time!

2.6.6i - using for a second day, trying ondemand governor with newest thunderbolt 2.6.7, -50mV UV on each step so far rock stable (so far, I see that the ondemand SOD was fixed with thunderbolt 2.6.7 - good job there!!) No wifi drops, my pc can recognize internal and external storage just fine :) Happy as ever with this kernel.

Keep it up guys! Great job!
[Galaxy S II Original Android Development] ramsheart:
No SOD, No USB problem, No Wifi problem, and no cpu scaling problem.. default stock init.d script from hyperdroidv5.2.21 rom (currently using this rom)

but yes, i experienced that weird behavior 3 time today, sio-ondemand 200-1000mhz with and without UV.

maybe there's something not right with the merged ondemand governor ?

now im testing with sio-conservative to see if that weird behavior show up again..
[Galaxy S II Original Android Development] CamoGeko:
Hmmm... a modded conservative sounds good. That actually used to be my preferred governor, until 2.6.6 when I found out that ondemandx has become more efficient.

Now there is just one ondemand in 2.6.6i it still feels efficient and as far as I can tell without the expense of performance. Since it actually feels as smooth as conservative did for me in mycfg v2.

Communicated from a Galaxy far far away via an XDA premium neurotransmitter while DJ'ing on The Enterprise.
[Galaxy S II Original Android Development] pikachu01:
Ondemand is supposed to act that way. Scale up to the maximum then scale down to the correct frequency after exceeding up_threshold.

Mine scales without problem. I checked it in CPUSpy. Try 2.3.9.

---------- Post added at 11:28 PM ---------- Previous post was at 11:26 PM ----------

Oh, and my wifi problem was fixed with a reset to the router I was using. It's not failing to connect anymore.
[Galaxy S II Original Android Development] droidphile:
"darthvader" sounds good. Better than "someone's heart" :D :D

If this is the Thank You time, i wanna thank 4 people mainly for making my GS2 experience freaking awesome.

Gokhan for your mighty & sweet kernel. The smoothness & performance i enjoy in the device is manly because of your hard work.

Luca for his amazing & most-bug-free custom rom, gingermod:95% aosp, 5% good-samsungyness.

Supercurio for his voodoo screen-tuning app and voodoo louder app. Audio and display is a pleasure now.

Kaush for the original clockworkmod recovery. We all owe our flashing-disorder to him.
[Galaxy S II Original Android Development] gokhanmoral:
it will still have screen off profile. I changed sampling rate to 20000 in 2.6.6i and set rate multiplier to 4.

so, it scales up faster and stays at high frequencies more.

but I will revert that change and make the sampling rate 100000 and rate multiplier 1 again.

or maybe 50000 with rate multipler of 2 will be better?

I haven't decided yet :) but 20000 is very low.
[Galaxy S II Original Android Development] PedroMRP:
I always use the samping rate 100000, sampling down factor 1, up_threshold 95 and down differential 5 and works really great for my usage no lag, good battery, very smooth
[Galaxy S II Original Android Development] XDA mark:
Since people are sharing their experience with 2.6.6i, here is mine:

Lulzactive scalling normly again, better then it used to be. It used to stay at the low frecuency's to much, then in the previos version it staying to high. Now it's very nice for me. Have had a great battery life today. 3G on all the time (which before getting the 2000mAh battery and using Siyah used to drain my battery in 6 hours). Now I just got home, I got 50% and the phone has been unplugged for 9 hours. Screen time almost 2 hours.

No bugs or problems. Only my wifi seemed kind of slow yesterday, but now it seems to be good again.

Imo there is a perfect balance between performance and battery life now, at least for me.It's actually the best performance and battery life I have had till now :l

Conf:

200-1200 MHz, Lulzactive, no scripts, no UV anymore.
[Galaxy S II Original Android Development] nickname_marco:
yes, i know it, but it should scale down in the conditions i tested it.

i tested it several times in specific conditions, both before and after having applied the modified S98bolt_siyah; the conclusion is that it clearly doesn't reach any of the lower frequencies. in fact, if i don't apply the script, it keeps hanging in the lowest frequency...
[Galaxy S II Original Android Development] incubus_fr:
My sampling rate is 120000 and multiplier 1 and I'm very happy with this.

Your 50000 / 2 may be a good compromise for most people actually...
[Galaxy S II Original Android Development] Mutalisk:
Except 2 issues (solved) I never had any issues over the last 30 versions or so.

I actually love this kernel, thanks a lot!

Darthvader sounds interesting, but as I like my conservative (very high down_threshold, very low up, damn smooth when needed, when not stays low, deep sleep like a baby, performance and battery great) I have two questions: what changes will you implement in the governor's behaviour and will we still be an able to choose normal conservative?

Thanks a lot :)
[Galaxy S II Original Android Development] :
Mind sharing this config mate? :)

Sent from my SGS2 - Hyperdroid v5.2 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] geviron:
Hello,

I've been using 2.6.6 with some scripts & Lulz governor

Is this a good battery life? I don't know what to think.

Cheers.
[Galaxy S II Original Android Development] gGabi:
you're stupid.

the battery is fine, you're not...
[Galaxy S II Original Android Development] geviron:
I really don't understand your reply & your reaction. I think you misunderstood what I wrote.

Anyway I'm kindly asking you to not answer any of my questions if you're to reply like you did.
[Galaxy S II Original Android Development] runedrune:
Uh. Was that even necessary? I don't see him asking anything wrong.
[Galaxy S II Original Android Development] Hertz33:
It's seems fine however your phone is awake alot whithout screen on.

And its been asleep for 20 out of the 22 hours.

get the BetterBatteryStats to see what keeping your phone awake.
[Galaxy S II Original Android Development] runedrune:
49% drain with mostly 20 hours of idleness definitely isn't normal. Search for betterbatterystats and check wake locks to see what's keeping your phone awake.

Edit: Tralalala. Beaten to it.
[Galaxy S II Original Android Development] muzens:
2.6.6i is running beautifully with Thunderbolt v2.3.9, no overclock and lulzactive.

Many thanks.
[Galaxy S II Original Android Development] geviron:
Cheers,

I know what's keeping it awake, com.android.server$AlarmManager but I wasn't able to do anything about it.
[Galaxy S II Original Android Development] Hertz33:
There is a solution for AlarmManager Wake lock here in XDA.

Use search and ye shall find ;)
[Galaxy S II Original Android Development] Fille84:
Stupid answer.
[Galaxy S II Original Android Development] geviron:
Another Thanks for you sir.

The dump file from AlarmManager showed facebook app was causing those wake locks. So I turned off the hourly updates. Hope it will work.
[Galaxy S II Original Android Development] msgfromside3:
Probably not. I have made it "never" all the time but I still see many facebook. I just have the notification on (thought "never" would make the notification ineffective), so we will see. Also be sure to kill fb service as well.
[Galaxy S II Original Android Development] menkromsen:
Seems you are running Cyanogenmod or MIUI?

-If I remember correctly both those roms have a problem with showing activity all the time - Even when it actually isn't!

And it's Alarmmanager who reports false I think.

I was running different MIUI rom's for quite a long time, and they all had this problem! The batterydrain was not that bad, but I am now running CheckRom (samsung-rom) and i have to say that I like it better overall....
[Galaxy S II Original Android Development] Markus31415:
Does nobody with the Kernel 2.6.6i has the problem, that the device boots if you plug in the charger. So you can't charge the device if its turned off. It automatically boots?!
[Galaxy S II Original Android Development] AJ.Rockwell:
This forum needs a bash button :-/
[Galaxy S II Original Android Development] omegajester:
Same here. Also, my phone thinks it's charging when connected to the PC, hence it never recognizes it -_-
[Galaxy S II Original Android Development] Hertz33:
Yep 2.6.6i defenatly problematic for me. No MTP connection via USB + random freezes for no apperant reason. 2.6.6 the MTP works fine but still the freezing problem. Had to revert to 2.6.2 wich is the most stable for me with the current ROM. Non of the versions however been a problem for me battery wise. Allways deep sleep and no drain issues.
[Galaxy S II Original Android Development] hawkerpaul:
Gokhan has fixed the mtp connection issues and will be included in the release of 2.6.7
[Galaxy S II Original Android Development] Hertz33:
Good to know.
[Galaxy S II Original Android Development] Gutana:
Not sure if this was related to siyah kernel, but i recently flashed the 2.6.6i, and suffered from extreme battery drain, though i also had the latest build of CM9 as well. But my phone was fully charged this morning, by the end of 1st period (approx 1 hour 30 min from unplug) I was down to 22% battery. Anyway flashed back to an older rom, but still rocking Siyah 2.6.6i, so i guess tomorrow I'll see if it was siyah or cm9.

Anyone else getting some beastly battery leakage?
[Galaxy S II Original Android Development] PedroMRP:
SiyahKernel is not compatible with CM9 or ICS ROM...
[Galaxy S II Original Android Development] AndreiLux:
I've had twice now the problem that 2.6.6i & ondemand being stuck at high load and max frequency (but not locked) and being prevented of deep sleeping, I didn't figure out any wakelocks for it. Happens regardless of Wifi/xG or data.
[Galaxy S II Original Android Development] Gutana:
Yeah.. I feel kind of dumb, I just read that, haha. Nevermind guys, false alarm, continue on with your day ;)
[Galaxy S II Original Android Development] XDA mark:
I do have afeeling something is going on with my wifi. The signal seems weaker then before in my room, re sulting in viber calls going from perfect to bad. Also when Im on wifi, whatsapp seems very very slow. Dont know how that is possible, but that's what Im seeing. 3G is all fine.

So don't know if the next update could change back the wifi changes made in 6i, but it really seems something is not going right with the wifi. At least in my situation.
[Galaxy S II Original Android Development] Vaedryn:
Under CM7

Kernel 2.6.6i

Sio Lulzactive / Tegrak Lulzactive App

No UV

Cpu 100/1000

85

1

1

200

10000

40000

All works fine, no deep sleep problem,no wifi problem, no lags , battery very good.Absolutely no problems.

Cyanogen Mod 9 Tapatalk
[Galaxy S II Original Android Development] mariosraptor:
what the hell Gokhan, what have you done to my phone?

It feels faster than ever with the same undervolting and lulzctive!!!:D

thanks!!!

---------- Post added at 12:19 AM ---------- Previous post was at 12:14 AM ----------

mate here is something (actually nothing, but something) thank you.

9L421792XK588714C
[Galaxy S II Original Android Development] :
please mate would you mind sharing your settings that made your battery life so good? :)

Sent from my SGS2 - Hyperdroid v5.2 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] AMDPOWERFIST:
hehe, funny you should ask that. If you check my signature, i have written a 12 page (word doc) guide on the exact settings i use for achieving my battery results. I can get anywhere between 48 and 56 hours out of a single charge, this is with low to medium use (50-80 sms's, 2-5 phone calls = approx 30-40 mins of talk time, facebook browsing with periodic syncing every hour, K9 email checking every hour, 2-3 hours of screen-on time)

Let me know how it goes, cheers
[Galaxy S II Original Android Development] :
Sorry mate, I'm using almost only tapatalk to browse xda and signatures are hidden as you know :) will read it thoroughly when at my desk, thanks a lot! Hope to learn many things from your guide! :)

Sent from my SGS2 - Hyperdroid v5.2 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] AMDPOWERFIST:
Here is the link, so you can open it manually in a web browser if required:

http://xdaforums.com/showthread.php?t=1351663

I hope you find some of it useful,

Cheers
[Galaxy S II Original Android Development] olifee:
Hi gokhanmoral,

I also tried 2.6.6i and was just now hit by the sudden problem of very high lagginess which is only solved by a reboot.

I could not see really high load in 'top' apart from system_server and checked /proc/kmsg.

I got loads of the following messages ('loads' means, sometimes every 0.1 s):

<3>[19477.405559] BUG: scheduling while atomic: swapper/0/0x00020009
<4>[19477.405786] Modules linked in: dhd fuse mc1n2_voodoo ld9040_voodoo j4fs(P) Si4709_driver bthid vibrator
<4>[19477.407049] [<c0555fd0>] (unwind_backtrace+0x0/0x104) from [<c0a1b8d8>] (dump_stack+0x10/0x24)
<4>[19477.407190] [<c0a1b8d8>] (dump_stack+0x10/0x24) from [<c0a1c1f0>] (schedule+0x384/0x5cc)
<4>[19477.407428] [<c0a1c1f0>] (schedule+0x384/0x5cc) from [<c0551600>] (cpu_idle+0xa0/0xec)
<4>[19477.407663] [<c0551600>] (cpu_idle+0xa0/0xec) from [<c0008ca8>] (start_kernel+0x3b8/0x3c8)
<4>[19477.407838] [<c0008ca8>] (start_kernel+0x3b8/0x3c8) from [<40008080>] (0x40008080)

As you can see:

Mem: 854732 836032 18700 0 38316
-/+ buffers: 797716 57016
Swap: 0 0 0

my memory was pretty full, but there should still be enough room to keep running.

My memory was eaten mostly by com.google.process.gapps, Google Goggles and system_server, so the system could have killed e.g. Google Goggles by itself easily.

I hope this might help you track down the reason ;).
[Galaxy S II Original Android Development] thawizard:
i am having serious issues while using GPS. i think it started with 2.6.4 and up. Every time GPS is in use (blinking) and/or locked in, apps that use GPS (maps, nav, location based games, etc.) seem to freeze or lock up for few seconds up to few minutes from time to time then it goes on as usual shortly before it will get freezed again..

any idea why this is happening?
[Galaxy S II Original Android Development] JmPTaz09:
Just a quick note that battery life on 2.6.6i was phenomenal today even with it being the first day on a new rom (cognition). Using ondemand/sio at 200-1400 with moderate uv at all levels. No problems with wifi or anything else, very fast and smooth and got lot's of deep sleep while I was at work.
[Galaxy S II Original Android Development] sennan:
Yep, I'm also having the same problems. Gmail gets painfully laggy and video playback was jerky. Solved by rebooting.

Think I'll go back to version 2.5 until issues can be resolved.
[Galaxy S II Original Android Development] ksantoshh:
Use ls command to list the files or type adb help to list out all commands.

Hope this Helps !

---------- Post added at 10:40 AM ---------- Previous post was at 10:31 AM ----------

Siyah is a very good kernal which allows for lot of tweaking, how you utilize this for your optimum use is upto you :):)
[Galaxy S II Original Android Development] stevehkim:
i dunno why but i think the people that are having issues are on cm7 based roms. ive confirmed that several users that are having issues are on either cm7 or miui. dont understand why or how. just leaving some feedback for this version gokhan. also ive confirmed that thunderbolt, newest version doesnt play nice with ondemand scheduler. hope this helps somewhat GK as you are the mastermind here. thx for everything GK!

tweaked - by me

kernel - siyah the og

rom- me you eeee.
[Galaxy S II Original Android Development] pikachu01:
Try the newest ThunderBolt!. I've reverted the sampling_down_factor back to 1, which should resolve the getting stuck at 500MHz issue due to a low sampling rate.
[Galaxy S II Original Android Development] cmd512:
Mine was getting stuck at 500MHz sometimes as well, and my sampling down factor has been at 1 for several days now. I believe it's because my lulzactive screen_off_min_step is 5-500MHz, and for some reason, it's not throttling up after screen on. However, most of the time if you leave it alone, it'll idle down to your lowest freq (200 MHz for me) and start functioning normally.

I believe it has something to do with the new slowed throttle down code for lulzactive. Sometimes, you see the phone stick to max freq (mine would be 1400mhz) even though the phone is idle. Sometimes, it throttles down normally. But, when it gets caught in that weird 500mhz state coming out of screen off, it's basically sticking to a max frequency of 500mhz. So, I think that's why all functions return to normal after letting it throttle down to min freq.

It's weird, definitely timing related issue.
[Galaxy S II Original Android Development] euphoria47:
Woke up to "no service" this morning after flashing 2.6.6i. I had to do a soft reset to get it working again. Not sure if this is rom related or just coincidence
[Galaxy S II Original Android Development] KcDaRookie:
Flashed 2.6.6i yesterday and this morning the phone was powered off and wouldn't turn on again.

After charging it for a while and turning it on (it was drained empty as ****, I had to charge it for about 10 minutes before it even tried to power on, and then still was at 0% o.o) I took a glance at the batteryusage:

Click for larger view

I'll give it another try today, if it happens again i'll revert to an older version.
[Galaxy S II Original Android Development] Uss_Defiant:
Any update on how the 3.0 kernel version is going? Just got cm9, and already missing this kennel :(
[Galaxy S II Original Android Development] plop974:
It's not going anywhere unless kernel sources are released if I'm not mistaken.

You have to be patient.

CM9 development is partially stalled for the same reason. They need kernel sources to fix some bugs so they are working on other things for the time being.

You can check codeworkx blog : http://codeworkx.de/wordpress/
[Galaxy S II Original Android Development] gokhanmoral:
v2.6.7 is up.

I made some last minute changes to fix that lagging problem and I hope It won't break something else.

we'll see :)