yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] KcDaRookie:
Use CPU Spy, it will give provide info for how long your phone was in which state.

Deep sleep ist a totally other state than the minimum frequency.
[Galaxy S II Original Android Development] shahulvm:
Install cpuspy from market..install and let it execute for soemtime...later check on the app and it will indicate a history of cpu states
[Galaxy S II Original Android Development] Life Engineer:
Guys what is the default governor?!

To disable the effect of setcpu, is clearing data than uninstalling and rebooting enough to do so, or it does change the governor in the kernel itself?!
[Galaxy S II Original Android Development] doongoo:
OK, will do so with your great kernel! I let the setCPU possibility for other kernels!

Donated your excellent work!
[Galaxy S II Original Android Development] kremori:
Just for info, i tried k16 with 3 different phones with newest stock KJ3 firmware and it lags while scrolling between homescreens, not judging this kernel, but whats the benefit of having the high quadrant score when the home screen is not smooth.

Gone back with CFstock KJ3 rooted kernel and the quadrant is lower but there is definitively no lag.

Correct me if i'm wrong please
[Galaxy S II Original Android Development] roymustafa:
Hi guys.

I have international version of Galaxy S II and non-brand. Now i want to flash I9100BVKJ4 Orange Brand ROM and Speedmod kernel over it. Will it work for my non-brand GSII?

Thanks a lot...
[Galaxy S II Original Android Development] dica:
the def. is ondemand just uninsatll setcpu and rebbot if un need to be sure of which gov u r using u can install romtoolbox
[Galaxy S II Original Android Development] ithehappy:
Uff...finally I'll uninstall SetCPU. What a relief...

Thnx.
[Galaxy S II Original Android Development] It_ler:
Should work, but make a backup before flashing.

Just in case ...

Good luck!
[Galaxy S II Original Android Development] guillots:
what rom you have? and modem?....

DATA On?

which apps with sync you got????

i have stock rom, with last speedmod, Modem KI3...and 4 or 5 apps with sync...and my battery lives at most 24 Hs.....

anybody can help me?? jeje
[Galaxy S II Original Android Development] Jonjungle:
My Rom is Cognition S2 v1.6, Modem KI4, Wifi and sync always on and 3hours screen time [to the contrary of what some posters thought.] That's why I said a moderate user. I read emails, [4 accounts], check a few sites, update software and the usual things. No, I don't play much games.
[Galaxy S II Original Android Development] roymustafa:
Thanks a lot man. God Bless You!
[Galaxy S II Original Android Development] mbroeders:
Looking at that picture I would say that the phone spent most of the time in stand-by. 24hrs is not that bad. You should state how much screen on time you've had. You should get between 4 and 5 (if you listen to music often, maybe between 3 and 4) hours of screen-on time. Of course, there are so many factors into play when comparing battery life across devices. My main message is, 24hrs should suffice for anyone! Just use your phone and charge it overnight... :)

Ps. Using K17 test 1 now. K16 was amazing! Let's hope K17 performs at least the same, or even better. Thanks anyway!!
[Galaxy S II Original Android Development] ewokuk:
tried 17 for the last 24 hours and i do get the impression that i have a bit more battery life than i did before, although hard to tell and i havent done any scientific tests on it, certainly doesnt seem huge and i may be completely wrong, but it doesnt seem worse than 16 either way.

i dont know exactly what the disabled setting in 17 does so i cant judge for myself whether i would rather have it on or off.
[Galaxy S II Original Android Development] iNeri:
I have 7hrs.of screen on with wifi all day and 2g on 1hrs.

Total usage about 16 hours

:-)

Enviado desde mi GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] chowlala:
Hey guys,

Was just wondering, will this work with CM7?

Sorry, I just got my S2 after using my Nexus One for two years. So it's quite a fair bit of learning curve still.

I flashed it via CWM and had a huge scare, phone wouldn't turn on fully, either it was bootlooping or it'd stop halfway or something. Finally somehow managed to get it into recovery and immediately went for my recovery.

I'm on CM7 nightly build 111.

GT-I9100 (basedband XXE4)
[Galaxy S II Original Android Development] SaneinOne:
Nope.
[Galaxy S II Original Android Development] akbarhash:
No.

Sent from my GT-I9100
[Galaxy S II Original Android Development] milan188:
Which ROM are you using... 7hr is impressive.

Sent from Galaxy SII XDA Premium
[Galaxy S II Original Android Development] iNeri:
Batista rom ver.2.5 mate ;-)

Enviado desde mi GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] milan188:
Will definitely try that soon. Are you using a stock battery the 1650mAh one?

Sent from Galaxy SII XDA Premium
[Galaxy S II Original Android Development] iNeri:
Yes stock one. 1650 mah here ;-)

I forgot to say that the cicle start at 93 % ;-) may be at night i upload the entire graphic when this cicle goes to 1%

Enviado desde mi GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] Peeyar:
Can you posy your screenshots on your battery usage so that wel know if there are no in between charging and proof of what you are saying.
[Galaxy S II Original Android Development] qureyoon:
View attachment 779914View attachment 779915View attachment 779916

Normal usage. 3g on wifi on, heavy browsing, manga reading(screen always on), some games. So far so good for me B-)

A bit of charging there is when I plug to my laptop to copy some files.
[Galaxy S II Original Android Development] CamoGeko:
14 hours deep sleep lol, looks like you barely used your phone. :P

Transmitted from a Galaxy far far away via XDA lightspeed telepathy.
[Galaxy S II Original Android Development] iNeri:
Of course mate, here you go :-)

10 minutes of phone calls. Half hour of 2g data on B-)

Enviado desde mi GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] rajaspidey:
u need to wipe cache partition, dalvik cache & battery stars after flashing every rom & kernel!!
[Galaxy S II Original Android Development] rajaspidey:
Guys temme wch version is good in terms of battery?? am now in v16
[Galaxy S II Original Android Development] lrcquest:
u can try k2-16, note its performance (at least 2-3 full charge-recharge cycles). Its good. Am just on the k2-17 test now. Just running the 1st cycle. Seems to be doing good. Some stats are given in the above posts. Will post the stats soon.
[Galaxy S II Original Android Development] tkalli:
Any speedmod is good on battery.​
[Galaxy S II Original Android Development] pedestre:
I think that is the main goal of this kernel.

Enviado desde mi GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] s2d4:
Thank you captain obvious! :D
[Galaxy S II Original Android Development] ragab mahmoud:
shall we see SpeedMod kernal with Tegrak 2nd Core

https://market.android.com/details?id=com.tegrak.secondcore&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS50ZWdyYWsuc2Vjb25kY29yZSJd

can you hardcore please work in that
[Galaxy S II Original Android Development] marvinhemstock:
@hardcore

as always hitting the mark, great kernel again, keep up the good work :)
[Galaxy S II Original Android Development] dogan2010:
i always used Speedmod Kernel on my

I9000 and i can tell you it was the best kernel there..best performance & battery life. now i have a SGS 2 my question is does speedmod Kernel supports BLN?
[Galaxy S II Original Android Development] shawnaye:
sorry it doesn't as hardcore believes that bln drains battery :)
[Galaxy S II Original Android Development] Mustoura:
Results from 17

That is with wifi 3g Bluetooth and background sync on.
[Galaxy S II Original Android Development] coolfire:
Stock 1650mAh or extended 2000mAh battery?

Sent from my SGSII
[Galaxy S II Original Android Development] ozzyblack:
Can you tell me wich nice rom our use
[Galaxy S II Original Android Development] Namensindschallundrauch:
Wow, K2-17 test1 is the best kernel I've ever used in terms of battery time. Didn't notice any problems. ROM Kitchen KI8, Modem: KI3.

On first cycle I got nearly 3 full days of battery life with 3:30 hours screen time.

View attachment 780221 View attachment 780222View attachment 780223

2nd cycle was a harcore use case: 1 day 3 hours battery time, 6:40 with screen on, wifi was on nearly all the time. Played 40 minutes Angry birds, that's where the graph descends most (in the middle of the graph), that alone sucked about 18% out of the battery. Rest of the time was mosly web browsing. Had to move around and wait a lot on that day: when printing a copy shop and after that waiting in front of the examination office in university to finally hand in my master thesis. YEEEEHAAAAA!!! Thank you hardcore, if battery life wouldn't be so great with Speedmod, I could have been required to read in a ... ahm... BOOK?!? or whatever... :eek:

View attachment 780226 View attachment 780227 View attachment 780228 View attachment 780225
[Galaxy S II Original Android Development] Mustoura:
Sorry, stock 1650mAh (Litening Rom 6.1)
[Galaxy S II Original Android Development] MrPhilo:
I know the kernel is for stability, but i'd love to see undervolt (probably many asked already). I mean its upto the user if they wanted to undervolt :)! Im sure we can get more juice out with undervolt + speedmod ;)
[Galaxy S II Original Android Development] bervin:
One of the best stats ever man! could you share more on your rom and if your using stock 1650mah battery?
[Galaxy S II Original Android Development] ragab mahmoud:
+10000000000000000
[Galaxy S II Original Android Development] Namensindschallundrauch:
Stock battery, just the normal KI8 KitchenROM (7.1.1) without all the Samsung bloatware, didn't do anything special. I don't use many apps that need to sync: Only Gmail, Calander, Contacts and the weather app (geniewidget, every 6 hours), no facebook sync, no google+ sync, since I get email notifications anyway.

battery life is so good that I just canceled my order for the extended battery, because I don't know how to get this "hardcore phone" :D empty on a single day, if one doesn't try to squeeze every bit of battery out of it. For the 2nd cycle I used the phone to do/read some things I would normally do/read on my desktop.
[Galaxy S II Original Android Development] Deviser:
@Namensindschallundrauch

What's your screen brightness level?
[Galaxy S II Original Android Development] Molitro:
The moment you give the user the ability to change things, you have a thread full of complaints saying the kernel doesn't work well simply because the user messed up.

Configurable UV is not a good idea for what hardcore intends.
[Galaxy S II Original Android Development] billab0n6:
Honestly what's with all these undervolting or overclocking crap, if hardcore do not use them than just respect it and just use his kerner without whining about UV or OC, if those that wants UV and OC, go create a kernal yourself or go to other kernal and stop whining here... Its already been said NO UV or OC in speedmod, so just live with it or get the hell outta this thread, just that simple...
[Galaxy S II Original Android Development] aqualeris:
There's is always ragemod, a speedmod-based UV/OC kernel. If not you could opt for other the kernels that are designed to UV/OC like Siyah, Ninphetamine. The features of speedmod is its rock solid stability and good battery life WITHOUT UV so it's likely to stay.
[Galaxy S II Original Android Development] tkalli:
Please read the first paragraph in the 1st post by hardcore and STOP posting

about undervolting, overclocking and other mods to the kernel.

It is a waste of time and against hardcore's visions of what HIS ROM should be.​

======================================================

[KERNEL] SpeedMod SGS2 [K2-16 Update3 CWM4 CIFS ROOT]

Hi guys,

This is the SpeedMod kernel for the Samsung Galaxy S2 GT-I9100.

SpeedMod's core features are:

- Super stable: No undervolting, overclocking or potentially unstable modifications

- Fast and smooth: Compiler and code optimizations

- Excellent battery life: Remove necessary logging and debugging
[Galaxy S II Original Android Development] milan188:
Is everybody's Android OS usage this high after some hours? This is my first charge cycle. I came from siyah and never had Android OS more than 5%. The battery life is good but it could be even more awesome if android os usage is lower

Sent from Galaxy SII XDA Premium
[Galaxy S II Original Android Development] hardcore:
K2-18-test1:

- Patched to support ARM CPU topology for sched_mc support

- Switched from CPU hotplug to sched_mc for dual-core power management

- Enabled AFTR (ARM off top running) CPU idle mode

- Nicer looking kernel version string

This version is a major change from previous versions for power management strategy. The strategy to switch from CPU hotplugging (disabling one core, high overheads) to multi-core aware process scheduler (try to make processes run on a single core to enable more idling) is the current direction taken by the Linaro team, so I am trying it out.

I'm interested to know if it gives better or worse battery life.
[Galaxy S II Original Android Development] mynameisjon:
ignore Android OS. it's a reporting bug.
[Galaxy S II Original Android Development] BrandoHD:
Many thanks

I was just about to reply to all those people in the thread that can't read to well and keep asking for UV/OC all the time, but I can't any more, I will be to busy flashing and testing K2-18

Thanks HC
[Galaxy S II Original Android Development] shawnaye:
so does version 18 act like how tegrak's second core works?
[Galaxy S II Original Android Development] milan188:
Thanks im sorry if this was asked before.

Sent from Galaxy SII XDA Premium
[Galaxy S II Original Android Development] coolfire:
Awesome, hardcore!

Downloading test 18 now. :D
[Galaxy S II Original Android Development] ragab mahmoud:
+same here
[Galaxy S II Original Android Development] hardcore:
No, not at all. It's much more than that.
[Galaxy S II Original Android Development] shawnaye:
so it's better? ;)
[Galaxy S II Original Android Development] ragab mahmoud:
so how can i Choose between using 1 core or using 2 cores in the kernal
[Galaxy S II Original Android Development] hardcore:
You can't. You don't. There's no point to manually choosing 1 or 2 cores in the kernel.

Now both cores are always online but the process scheduler is smart enough to optimize load among them to save power.

If you want to know the fundamental reasons behind the move, have a read here:

https://wiki.linaro.org/WorkingGroups/PowerManagement/Specs/sched_mc
[Galaxy S II Original Android Development] eXnikaru:
So that`s mean the battery life is greater in 18?

Do the mod affect the performance/snappy?
[Galaxy S II Original Android Development] pedrolopes665:
Just flash k18. Lets see how it feels.

Thank you!!

Hardcore, u should put this link in the first page, beside k18. It will avoid a lot of dumb questions (or not! lol)
[Galaxy S II Original Android Development] ragab mahmoud:
Now i see thank you for Explanation
[Galaxy S II Original Android Development] mariosraptor:
Just flashed the latest k18test1 and also removed setcpu to leave everything on the default scheduler, no profiles no nothing.

Thanks Hardcore for your time and efforts, really appreciated!!!
[Galaxy S II Original Android Development] ithehappy:
That will be one hell of a job if you could get that thing work properly.

Should I say a thanks again? Nah ... :p

BTW- What happened to K2-17 testing? You testing both 17 and 18? or shall we take 17 as a Final release?
[Galaxy S II Original Android Development] Brotuck:
Very intresting stuff to read, very curious how the kernel performs. :)
[Galaxy S II Original Android Development] AndroidGX:
What is this exactly :confused:
[Galaxy S II Original Android Development] mariosraptor:
This is blazing fast. I feel it like overclocked. Amazing.
[Galaxy S II Original Android Development] It_ler:
+1

SpeedMod kernel is already very good, but one thing could make it even better: CWM5.

As I had CF-Root kernel v5.0 with CWM5, I also made some system backups on my external sd card.

Now, running SpeedMod K2-17 test1 kernel with CWM4, I do not see my backups on my external sd card.

I know that I can copy them on the internal sd card, but as I have more free space on external card, I would prefer to have CWM5 back on my favorite kernel.

If there is a way to include CWM5 into one of the next SpeedMod kernel, there will be many happy hardcore's SpeedMod kernel fans :)

I found several posts in different threads asking for CWM5, re-installing CWM5 recovery mode to custom kernels, and explicitly referring SpeedMod kernel.

So, I just say PLEASE for all of us wanting hardcore to integrate CWM5 into SpeedMod kernel :o
[Galaxy S II Original Android Development] n00n00:
nice work hardcore. this is one hell of a kernel. :D
[Galaxy S II Original Android Development] apeiron6:
Great work Hardcore. Kernel K2-18 runs smoother than earlier versions.
[Galaxy S II Original Android Development] Mekrel:
You know what I love about Speedmod? Just how you're doing your own thing and researching the savings to be made, rather than throwing everything and the kitchen sink into it like other kernel developers.

Will flash K2 18 test after I've had my warm drink. I'll also be donating. Seriously, my Galaxy S2 is just fast enough at stock and the only gains to be made really are battery saving ones in my opinion. This is exactly what this kernel does.
[Galaxy S II Original Android Development] richyy74:
For me it feels snappier. Too soon to say anything about battery but looks promising.

Sent from my GT-I9100
[Galaxy S II Original Android Development] frw999:
post deleted
[Galaxy S II Original Android Development] frw99:
Hi SpeedMod,

a beer for your great work :D

6N046399CC893134G
[Galaxy S II Original Android Development] Mekrel:
Likewise, donation from me too. There's more where that came from if you add CWM5 ;)

0RB32897398076619
[Galaxy S II Original Android Development] akbarhash:
This kernel looks to be spending more time at 800 MHz than k2 16. Anyways will see if I can report something useful.

Sent from my GT-I9100
[Galaxy S II Original Android Development] isotoper:
Amazing kernel, thank you .

Is this kernel using stock voltage ?

Thanks.
[Galaxy S II Original Android Development] stylez:
To quote first post:
[Galaxy S II Original Android Development] buerger5:
Great!

Wow!

Tried various kernels, experimented long time with this oc/uc and ov/uv stuff and got fcs, random reboots and all the other known problems once in a while. I'm so tired of that.

Always went back to your kernel when had enough from that problems. I'm not in the mood of that anymore. So i'm sticking with your kernel. Stable, good battery life. And: Don't know what you've implemented recently, but this k2-18 seems to be so turbo...amazing!

Thanks for your great job and for sharing!
[Galaxy S II Original Android Development] mariotme:
And??
[Galaxy S II Original Android Development] nikzDHD:
Seems to be in relation to poster above who said most time spent on 800mhz, similar with mine as well.

500mhz usage is mainly music.
[Galaxy S II Original Android Development] SaneinOne:
Correct. I love Speedmod! The end.
[Galaxy S II Original Android Development] planetf1:
Interesting change. I was just chatting to someone today about the quest for underclocking & delaying activation of additional cores -- since it actually means it takes longer to get through the work (so no sleep).

Trying -18 now, even if it is just the beginning of this particular experiment
[Galaxy S II Original Android Development] akbarhash:
I can't really say if you guys are agreeing with me or not.

See it is missing out on 1000 MHz and preferring either 800 or 1200.

I said more not most.

Anyways I will give some better stats tomorrow.

The main reason for no deep sleep is because it was on charging and then I have been using it continuously.

Sent from my GT-I9100
[Galaxy S II Original Android Development] sydknee:
Wow. Didn't think my phone could get any quicker. Mighty fine work with this v18 hardcore. Many thanks!
[Galaxy S II Original Android Development] juno360:
This is the bedtime kernel. stable and very fast. You have a great approach, no need to add all extra features such as undervolting etc
[Galaxy S II Original Android Development] Namensindschallundrauch:
just auto brightness, but 2 hours were in relatively dark room
[Galaxy S II Original Android Development] ludester:
Hey Hardcore any info regarding when you will be putting CWM 5 ?
[Galaxy S II Original Android Development] coolfire:
It'll come when it comes. :)

Btw, test 18 feels good...

Sent from my SGSII
[Galaxy S II Original Android Development] bryant_16:
Does this kernel work with my 2.3.3? I just root my s2 with cf kernel, but want to try this kernel out.

Am I able to use setcpu with this kernel as I'm unable to when using cf kernel?

Thanks in advance.
[Galaxy S II Original Android Development] shawnaye:
you can just flash any kernel as you like regardless of your android version.

and there is no need for set cpu in this kernel as you can see from all the posts above, speedmod, is already good enough without setcpu!
[Galaxy S II Original Android Development] CamoGeko:
No, you can't use SetCPU with this kernel. If you want to overclock and/or undervolt then use another kernel (Ninphetamine or Siyah for example).

Also I would strongly advise you to update to 2.3.5. As it includes quite a few improvements.

Transmitted from a Galaxy far far away via XDA lightspeed telepathy.
[Galaxy S II Original Android Development] bryant_16:
But my country here doesn't have 2.3.5 yet so I don't know if it will cause any instability if I flash to 2.3.5.
[Galaxy S II Original Android Development] CamoGeko:
You can still update your firmware via ODIN. You won't have any instability.

Stock rom thread:

http://xdaforums.com/showthread.php?t=1075278

Transmitted from a Galaxy far far away via XDA lightspeed telepathy.
[Galaxy S II Original Android Development] Zaben:
~ 1 hour test with K2-18-test1. I haven't seen any problems yet.
[Galaxy S II Original Android Development] akbarhash:
Here is a two hour report. Charging overnight. Got up at 7:30 something.

Few photos Wifi, 3G on.

5% with 20 mins screen on, then again I am using extended battery 2000 mah.
[Galaxy S II Original Android Development] rajaspidey:
can u send me link for better battery stats app?!! :-)
[Galaxy S II Original Android Development] rajaspidey:
yea plz explain about stuffs for normal pll not like developers :-P
[Galaxy S II Original Android Development] akbarhash:
Here you go man.

Link.

Also could you edit your post and remove the photo links from it.

I already felt guilty posting so many screenshots now by quoting them you just doubled it.

Edit: In Settings>About there is a section where it says which kernel you are using.

He just changed what it says.

No big deal. It does not affect the working of the kernel.
[Galaxy S II Original Android Development] shawnaye:
hey there, there's absolutely no problem when you flash to any other android version, it's just updating it, the reason Singapore still doesnt have it, is because Samsung Singapore is god damn slow (:

so just go ahead and flash away.
[Galaxy S II Original Android Development] henriquesb:
Loving Speedmod more and more. I'm currently using VillainRom 3.0, do you guys know other stable, TouchWiz, battery-friendly and uncomplicated ROM to match with SpeedMod?
[Galaxy S II Original Android Development] bryant_16:
Need to wipe the phone?
[Galaxy S II Original Android Development] Rafael1000:
I like the Batista70 FOXHOUND EDITION 2.5 rom, works great with speedmod ;)

http://xdaforums.com/showthread.php?t=1162715
[Galaxy S II Original Android Development] Ariozo:
Flashed 18 last night and seems to run very fine so far, will have to give it a few days and then compare battery...

Edit: One problem i have get 2 times so far is that screen go full pink.. And you have to switch screen on/off to get it back to normal.

Sent from my GT-I9100