yashsingh1/xdaforums huggingface dataset:
[Galaxy S II General] Vihru:
one questions.. have you removed any apps in that Neatrom lite 4.2v? or frozen any apps?

just install neatrom and then got those results?
[Galaxy S II General] It_ler:
Yes, I have disabled some additional apps.

Will post a screenshot of those apps after my current battery test.

No additional apps uninstalled or removed.

Just disbaled via Application management in ROM settings.

Nearly the same small list of apps that I had disabled on XXLSJ NeatROM Lite v4.0.

EDIT:

Here are two screenshots of my manually disabled apps:
[Galaxy S II General] It_ler:
XWLS8 NeatROM Lite v4.2:

Excellent battery life in mixed usage too.

NeatROM XWLS8: Battery loss of 1,23% per hour, Wifi: 14,6%, Awake: 11,5%, Screen: 10,2% => loss*(1-screen): 1,10%

Again, it's slightly better than for XWLS8 NeatROM Lite v4.1.

Maybe because it was on the second battery cycle of XWLS8 based NeatROM Lite.

Now I will do some benchmarks and the prepare for the wifi short test.

Here are some screenshots:
[Galaxy S II General] -iNCEPTiON-:
Re: [26 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Thanks this actually fixed the problem. :)
[Galaxy S II General] It_ler:
Update XWLS8 NeatROM Lite v4.2:

Added benchmark results to first post.

Similar results than for stock XWLS8 ROM. So nothing spectacular IMO.

It just feels very smooth :good:

Thinking about skipping benchmark tests for future kernel tests ... :confused:

Now I'm preparing for the wifi short test.

Will be done today ... or latest tomorrow.
[Galaxy S II General] citytrader:
Iter, how is the battery of JB compared with ICS and wifi on?...
[Galaxy S II General] It_ler:
wifi short test

XWLS8 NeatROM Lite v4.2:

Just a short "wifi on and running" battery test for this ROM.

To get more "traffic" I also started Skype app - so Skype was running all the time too.

Battery loss: 8% (100% to 92%) => 3,90%/h

Time on battery: 2 h 3 m

Wifi On: 2 h 3 m Ratio: 100.0%

Wifi Running: 2 h 3 m Ratio: 100.0%

Deep Sleep: 1 h 16 m 37 s Ratio: 62.0%

Awake: 46 m 30 s Ratio: 37.8%

Screen On: 23 m 25 s Ratio: 18.9%

Nearly the same battery life as for SiyahKernel v6.0b4 and DorimanX v7.38, but still worse than for Jeboo v1.1c.

Over all, wifi is still a big battery drainer on the exising JB ROMs for our phone.

Will skip the wifi and Skype on and running all the time mixed battery usage test, as it will have still worse battery life compared to GB and ICS ROM/kernel combinations.

Here are some screenshots:
[Galaxy S II General] iamflamez:
thats really bad drainage for skype. Why do you think that is? Skype not optimised for JB, or JB not optimised for skype?
[Galaxy S II General] citytrader:
Well, there is no need at the moment to install JellyBug, currently is a downgrade.
[Galaxy S II General] Emre9110:
First post says at night use NeatROM XWLS8 (Neatrom v4.2) : Battery loss of 0,44% per hour, Awake: 1,1%. (wifi, synch, Talk and Skype on).

Here Your second screenshot says wifi off during night. BBS says wifi on 20h 21m but wifi runing 2h 55m.

I think there is a mistake here. :confused:
[Galaxy S II General] It_ler:
Update: wifi short test

Update XWLS8 NeatROM Lite v4.2:

Just a short "wifi on and running" battery test for this ROM.

To get more "traffic" I also started Skype app - so Skype was running all the time too.

But this time I have updated to the new Skype app from Play store.

Battery loss: 7% (99% to 92%) => 3,11

Time on battery: 2 h 15 m

Wifi On: 2 h 15 m Ratio: 100.0%

Wifi Running: 2 h 15 m Ratio: 100.0%

Deep Sleep: 1 h 31 m 36 s Ratio: 65.7%

Awake: 43 m 46 s Ratio: 32.3%

Screen On: 22 m 24 s Ratio: 16.5%

Better than previous wifi short test, but same wakelocks and alarms for Skype app.

Here are some screenshots:
[Galaxy S II General] It_ler:
I really don't know.

But I recognized the massive wakelocks and alarms for Skype app since it was taken over by Mircosoft ... and on Windows Mobile, I heard, Skype app is running battery friendlier.

Maybe there is a connection :cool:
[Galaxy S II General] It_ler:
Oh, that's your conclusion. Ok.

My conclusion is a little bit different:

I like the new TouchWiz UI, and some of the new features (popup play in stock video player, widgets tab in apps menu, new toggles in settings menu, etc.).

And I found a system/configuration, so that this new JB ROM runs very smooth and with excelent battery life on my phone.

So I am very happy now and won't go back to GB or ICS.

And keep in mind that you have some bugs in GB and ICS ROMs (at least when running on stock kernels), such as USSD and Exynos exploits.
[Galaxy S II General] It_ler:
Oh ... you are right.

Thanks for the information.

I have just corrected the wrong title in night use battery test result list.

After changing the battery test settings for JB ROMs, I adapted the text in the first post:

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

But I missed the title in the battery test result list for night use.

Wifi is on but only running when screen on (set in wifi policy). And Skype is not running in my normal battery tests any more (because of the massive wakelocks and alarms of the latest Skype app versions).
[Galaxy S II General] citytrader:
Re: [27 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

It could be personal preference, in my case I don't use the touch wiz and ICS runs very smooth on my telephone.

Battery is more important to me and in this part, Jellybug is not better, even worse considering WiFi that I use most of the day, in my case it will be a downgrade.
[Galaxy S II General] bobdoblo:
Re: [27 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

It_ler its slightly confusing because in your tests you are naming them jeboo, Dorimanx, Siyah and NeatROM.

Did you not do all the tests with NeatROM?

So it should be NeatROM with Philz, NeatROM with jeboo, NeatROM with Dorimanx and NeatROM with Siyah.

Or did you do the other kernels on stock ROM and if so why is there no Philz, or is Philz what you are calling stock?

Call me stupid and ignore if i'm wrong:o:D

*NeatROM*
[Galaxy S II General] Deni_NS:
Well maybe not... I flashed yesterday 4.2 and haven't flashed siyah so its on philiz kernel and i had maybe 1-2% lost over night with wifi always on + sync was BW on 1 hour, gmail push, pocket app push... Maybe he should do a full wipe and try it again.

Edit: Forgot to say that i uninstalled Gmaps :D
[Galaxy S II General] -iNCEPTiON-:
Re: [27 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Here is my test with my usage ( usually heavy ) seems perfect for me ..this is with stock philz kernel .. will test SiyahKernel later this week ;)
[Galaxy S II General] It_ler:
Re: [27 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Yes, the test were on NeatROM.

And when I only state NeatROM, it was NeatROM with PilZ-cwm6 kernel.

Maybe I will adapt the labels.

EDIT:

Changed XXLSJ to XXLSJ NeaTROM Lite v4.0 in test result lists.

Hope that gives more clarity now.

As PhilZ-cwm6 kernel is only rooted stock (with modified CWM recovery), I have not added PhilZ-cwm6 kernel ... want to keep the lists as "neat" as possible ;)
[Galaxy S II General] bobdoblo:
Re: [27 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Cheers buddy;)

*NeatROM*
[Galaxy S II General] Vihru:
here is my test with neatrom lite 4.2 with overnight. no wifi and no 3g mobile internet. but NO aeroplane mode.

test take 8 h 28 m 45 s when i was sleeping.

i have frozen many apps.

Level lost [%]: 2 Bat.: 2% (100% to 98%) [0,2%/h]

Voltage lost [mV]: -87 (3984-4071)

No Data Connection (): 8 h 28 m 45 s (30525 s) Ratio: 100,0%

No or Unknown Signal (): 8 h 28 m 45 s (30525 s) Ratio: 100,0%

Deep Sleep (): 8 h 24 m 16 s (30256 s) Ratio: 99,0%

Awake (): 4 m 29 s (269 s) Ratio: 0,9%

Screen On (): 3 m (180 s) Ratio: 0,6%

and here is betterbatterystats dump file for full watching
[Galaxy S II General] It_ler:
Re: [27 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Very good battery life with excellent deepsleep :thumbup:
[Galaxy S II General] Emre9110:
New version of Jebo v1.2, PhilZ Touch v4.00-b30, Dorimanx 7.45 waiting for testing :)
[Galaxy S II General] owen-nt:
Big thanks to you, very helpful.
[Galaxy S II General] It_ler:
Yes, I see ... and downloading all the new kernel versions :D

Much to test ... will take some time, as my battery tests need time.

And I will finish my current tests first.
[Galaxy S II General] It_ler:
Jeboo v1.2:

I flashed Jeboo kernel v1.2 on my XWLS8 NeatROM Lite v4.2.

It's very stable and smooth on my phone.

Everything works fine so far (wifi, bluetooth, GPS, gallery, video player, camera, video recording, etc.).

Moderate/good battery life in night use.

Jeboo v1.2 (XWLS8 NeatROM Lite v4.2): Battery loss of 0,57% per hour, Awake: 2,1%

It's nearly the same battery life than for PhilZ-cwm6 v4.00b22 on its first battery cycle.

Will finish the mixed usage battery test before testing new kernel version.

EDIT:

Added some screenshots:
[Galaxy S II General] perepelica:
Hi ,I'm using NeatRom too. What are you doing before you flash new kernel?

my battery was better on Dorimanx, now I'm trying Philz kernel.
[Galaxy S II General] madsponge26:
Re: [29 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Download GS2kernelwipe by red blur. Check red blur sig.
[Galaxy S II General] It_ler:
Depends on the kernel I was before.

From stock/PhilZ-cwm6 or Jeboo: Nothing. I just flash the new kernel non-wipe over the other.

From Dorimanx or Siyah: I boot into CWM recovery to reset Ex/STweaks settings and remove all files from init.d. Then I flash the new kernel.

As I do not use any manual tweaks/scripts, I think that will do.
[Galaxy S II General] Emre9110:
jeboo realesed v1.2a :)
[Galaxy S II General] madsponge26:
Re: [29 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Fix for bootloop issue:)
[Galaxy S II General] It_ler:
Jeboo v1.2:

Worse battery life in mixed usage.

Jeboo v1.2 (XWLS8 NeatROM Lite v4.2): Battery loss of 1,57% per hour, Wifi: 14,5%, Awake: 12,6%, Screen: 10,0% => loss*(1-screen): 1,41%

It's unfortunately the worst battery life I ever had with Jeboo kernel on my phone.

Will check again with latest kernel version.

Here are some screenshots:
[Galaxy S II General] It_ler:
Yes, already flashed ... but I had no bootloop issue with previous kernel version either.
[Galaxy S II General] marcusmt:
I.m using Neat Rom lite LS8, FB sync , whats app , google sync ang gmail 3g all time

I already used GM kernel , Dori kernel , Jeboo and Philz kernel

my battery drain between 1,1% - 2% /h in night use

day use, light use only read emails respond and facebook my batteru drians is 4% , 6% /h

1h30m Screen Time

:crying::crying::crying::crying::crying::crying:
[Galaxy S II General] It_ler:
Only advice I can give: Install and use BBS app (Link to BBS app thread in first post).

It shows all wakelocks and alarms, which prevent your phone from going into deep sleep.

Record and idle dump (at least 4 hours of doing nothing/screen off all the time), and post the BBS dump file in BBS thread.

There are some "experts" helping to optimize your battery life.

Good luck !
[Galaxy S II General] Many40:
In my opinion, either you are using FB app + syncing or experiencing good battery life - not both together. FB is known as one of the biggest battery drainers. Maybe browser based FB is a solution.

Nevetheless the best step to undertake is what It_ler already advised.
[Galaxy S II General] -iNCEPTiON-:
Re: [29 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

I doubt that dude .. I use FB alot 24x7 .. I still get 1d 4hours of battery life easily with some heavy calls and texting and screen on time around 2-3hours .. new FB app is optimised for battery I guess :)
[Galaxy S II General] Many40:
OK if you say that I have to rely on your opinion mate because I haven't used FB recently. But what do you think about syncing? Has it been optimized for battery as well? ;)
[Galaxy S II General] bobdoblo:
Re: [29 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

You have some of the biggest drainers you could have installed.

Gmail, FB, Whatsapp and all syncing and using 3g and most likely all wanting your location too!

Thats like a list of what not to do if you want good battery life!

Delete Gmail & use stock email app on manual sync.

Delete FB, twitter, google+ etc and just bookmark them & check status on browser.

Use wi-fi whenever possible.

Turn off location checkboxes unless you need/want them for an app but then once it has your location turn off or manually input location where possible.

Use Gemini/autostarts to stop Maps and maybe others (but be careful, leave system apps) starting on boot.

Just them steps will help massively but then as It_ler & Many40 said install BBS for any other drainers but remember why you bought a S2 in the first place as its easy to get carried away and have and expensive call an text only phone;)

Click *NeatROM*

---------- Post added at 07:31 PM ---------- Previous post was at 07:26 PM ----------

Suppose it depends how active he is on it, if hes getting messages every minute of the day and replying, watching videos people have posted etc.

Click *NeatROM*
[Galaxy S II General] -iNCEPTiON-:
Re: [29 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Sure u can rely on my opinion and give it a try urself too .. yeah abt syncing .. I have that manual for all except FB :) u get push notifications and messages too .. but I m on EDGE .. no 3G in Pakistan yet lol
[Galaxy S II General] It_ler:
Jeboo v1.2a:

I flashed Jeboo kernel v1.2a on my XWLS8 NeatROM Lite v4.2.

It's stable and smooth on my phone.

Everything works fine so far (wifi, bluetooth, GPS, gallery, video player, camera, video recording, etc.).

Nearly the same battery life as for Jeboo v1.2 in night use.

Jeboo v1.2a (XWLS8 NeatROM Lite v4.2): Battery loss of 0,58% per hour, Awake: 1,9%

Seems that there was nothing changed that influences the battery life.
[Galaxy S II General] iamflamez:
Re: [30 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Forget jeboo, everybody(me) is waiting for your siyah test :p lol
[Galaxy S II General] bobdoblo:
Re: [30 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Siyah has been done and there is no new version.

Doubtful it will be much different in LS8;)

Click *NeatROM* Go on, click it!
[Galaxy S II General] AllSeeyinEye:
I'm currently trying out Ficeto's 0.2 TWRP LS8 kernel. Will report back later today or tomorrow.
[Galaxy S II General] Deni_NS:
As I said before official FB app is master of wakelocks... For 15 hours I got 700+ wakelock and i used it for maybe 20 minutes... Optimized? Yeah right...

If u want push notification for facebook, go into settings of facebook and find notifications options and find when somebody comment on your (post, photo etc.) that you get instant notification. I use gmail for that purpose, because push notification in gmail is better than push notifications in FB app. No many and heavy wakelocks..
[Galaxy S II General] It_ler:
Have you got a link to kernel thread?

Can't find it on first quick search attempt :(

Thanks in advance.
[Galaxy S II General] AllSeeyinEye:
It's not on XDA. Ficeto is a member of AllianceROM team, and they have their own forum. It is available however via ROM customizer app in Play Store, via OTA, kernels.

I attached it to my post.

I've asked for the changelog, because the dev hasn't updated a / his topic yet.
[Galaxy S II General] It_ler:
Thanks (button will be pushed after finishing my current battery test).

I prefer kernels with a kernel thread here on xda.

The changelog is also very important IMO ... I want to have at least an idea of what I am flashing onto my phone.

You are welcome to post your experiences with this kernel here :good:
[Galaxy S II General] AllSeeyinEye:
I know you always welcome test results (if in an orderly overview), and no need to thanks. Just glad to contribute.

As far as changelog is concerned, I share your opinion. But this dev hardly ever writes something in a (public) forum. As far as I could find out, changelog is as follows:

- based on stock LS8

- added init.d support

- added TWRP recovery

- added bootanimation support

- added SU

- added adb

Ah well. I'll just test it whilst waiting for Hardcore's Speedmod and Phenomeno's Phenomenal kernels :)
[Galaxy S II General] It_ler:
Thanks again :good:

And I am also waiting like you :D
[Galaxy S II General] It_ler:
Jeboo v1.2a:

Nearly the same batetry life in mixed usage too.

Jeboo v1.2a (XWLS8 NeatROM Lite v4.2): Battery loss of 1,59% per hour, Wifi: 14,8%, Awake: 12,5%, Screen: 10,2% => loss*(1-screen): 1,43%

So no significant change for battery life between v1.2 and v1.2a.

EDIT:

Added some screenshots:
[Galaxy S II General] It_ler:
SiyahKernel v6.0b4:

I just flashed SiyahKernel v6.0b4 on my XWLS8 NeatROM Lite v4.2.

It is stable and smooth on my phone, but ...

... some small things seem not to work fine.

Live Thumbnail video player works, but the thumbnails of all "old" videos are black, and of newly recorded video only show static first picture (non-live).

And GPS doesn't work any more ... correction: after third reboot, GPS works fine again.

Now I will try to re-install live thumbnail video player from Aroma mods again. Maybe that can "repair" the live thumbnails?!

Rest works fine so far ... similar as on XXLSJ NeatROM Lite v4.0.

EDIT:

Re-instaaltion of 4.2 Gallery + Live Thumbnail Video Player could not fix the live thumbnail issue.

It's a minor bug IMO, as the player works ... only the thumbnais are black or static.
[Galaxy S II General] Deni_NS:
Well it_ler you must know that i said (in neatrom thread) that i'm pleased with philiz on Neat 4.2... Well yes I can say again that i'm pleased but... Deep sleep is good then comes this "but" when using phone, battery is draining soo fast... On LSJ + siyah i got 4:30h on my daily usage, now with same usage i got about 3h... Now i flashed dori 7.45... BUT another problem... Smothness is gone, vanished... Everything is default... I'll give a chance to dori, but i must see the battery first... I'll catch up u later and update after 2-3 cycles of charging.

Cheers mate.
[Galaxy S II General] bobdoblo:
Re: [30 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

You got a zip version?:)

Click *NeatROM* Go on, click it!
[Galaxy S II General] It_ler:
You can flash the tar file with Mobile Odin app if you don't want to use PC version of Odin.

Link to Mobile Odin app thread is in my first post.

Lite version is free on xda ... some Thanks for Chainfire are also free, if you only need it for one flash ;)

P.S.:

Nice signature pic :good:
[Galaxy S II General] -iNCEPTiON-:
Re: [30 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Get mobile odin pro dude... its awesum app by chainfire :)
[Galaxy S II General] AllSeeyinEye:
Re: [30 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Mobile odin isn't the only app for flashing tar files, you can also use free Rom Customizer app from the Play Store

Sent from my GT-I9100
[Galaxy S II General] It_ler:
Good to know, but Mobile Odin app works fine for me ... so no need to use another app IMO.
[Galaxy S II General] -iNCEPTiON-:
Re: [30 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

I would prefer mobile odin pro as its more reliable !!
[Galaxy S II General] AllSeeyinEye:
Re: [30 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Just checking in to report my experience whilst on Ficeto's kernel for a day. It was a hectic day due to a sad event in the family. This caused me to not use the phone as usual.

I got to some 2 hours of screen time and 2 hours of voice calls. Battery was at 17 percent when I woke up this morning.

Noticed an overnight drop of some 10 to 15 percent. This is extremely bad!

On a closer inspection it turned out that I had a night filled with wakelocks. They were all kernel related (which was to be expected since I didn't change anything in settings or apps and normally there are almost no wakelocks)

Besides the bad battery, that actually started promising whilst really using the phone, I noticed some payed apps were suddenly gone. This unexpected behavior was known in the previous version of the kernel, buy was supposedly fixed. Not.

Flashed back to Siyah v6.0b4. Didn't went through the extra work of making and uploading screenshots.

Someone mentioned Mobile Odin was better than ROM customizer for flashing tar files. Besides the fact that this isn't necessarily true, I would like to add that ROM customizer also flashes zip files :cool:

Sent from my GT-I9100
[Galaxy S II General] It_ler:
SiyahKernel v6.0b4:

Good battery life in night use.

Siyah v6.0b4 (XWLS8 NeatROM Lite v4.2): Battery loss of 0,54% per hour, Awake: 2,4%

It's nearly the same battery life as on XXLSJ NeatROM Lite v4.0 on the first battery cycle.

I had expected a better result, as stock XWLS8 has significantly better battery life than XXLSJ on my phone.

Let's finish mixed usage battery test now.
[Galaxy S II General] bobdoblo:
Re: [31 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Strange how thumbnails are working for me again and not for you, we had this scenario on LSJ.

I shot a video with the camera and that works in live thumbnail too!:confused:

Click *NeatROM* Go on, click it!
[Galaxy S II General] perepelica:
It_ler

please make a test of Dori 7.45
[Galaxy S II General] iamflamez:
Re: [31 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

Yes I expected a better result too, maybe the battery improvements are in the kernel rather than the Rom then.

Your experiments are very helpful. :)
[Galaxy S II General] It_ler:
SiyahKernel v6.0b4:

Worse battery life in mixed usage.

Siyah v6.0b4 (XWLS8 NeatROM Lite v4.2): Battery loss of 1,53% per hour, Wifi: 15,6%, Awake: 12,8%, Screen: 10,0% => loss*(1-screen): 1,38%

It's worse than for stock XWLS8 with PhilZ-cwm6 kernel ... on my phone.

So I will first verfiy my results with latest PhilZ-touch kernel again, before testing the next custom kernel ... maybe latest Dorimanx?!

Here are some screenshots:
[Galaxy S II General] bobdoblo:
Re: [31 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

I changed to Siyah too, so far in my opinion i would say its the best kernel for LS8 taking into account battery, performance, stability and bugs. And screen has better clarity and crispness for some reason, do you see that It_ler?

My first cycle on it http://xdaforums.com/showthread.php?p=37412388

Click *NeatROM* Go on, click it!
[Galaxy S II General] It_ler:
Re: [31 Jan 2013] [KERNEL TESTS] [SAMMY ROMS] Kernel battery tests and benchmark resu

TBH I have not recognized any difference in sharpness on Siyah.

But I don't wear my glasses all the time :cool:

I was a little bit disappointed with the battery life for Siyah on XWLS8 :(

But everything else is great on this kernel :thumbup:
[Galaxy S II General] Parrillo:
It_ler, Did you use the Siyah with Stock Setting, right?

Perhaps it can be a big difference between your point of view and bobdoblo's. Because he uses with Pegasusq + SIO combination.

This can make a big difference, isn't it ?
[Galaxy S II General] It_ler:
Yes, I am always running on kernel's default settings.

Probably the io scheduler and CPU governor cause the different battery life.