yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] tk142:
The one in the OP is newer than test 5. Hardcore releases tests then a final version (or he has for the last 3 or so releases)
[Galaxy S II Original Android Development] DaLuigi3:
thanks hardcore for that great kernel:)

please make it work with MIUI!!!

greetz
[Galaxy S II Original Android Development] knuckle03:
Thanks hardcore! Awsome kernel. Running on k 19. As you can see 4hrs + screen time on with 24 more juice left.. Thats lots of web browsing, listening to podcast and lots of texting and some calls.
[Galaxy S II Original Android Development] sachinaik:
Is this with stock 1650 mah battery ?
[Galaxy S II Original Android Development] knuckle03:
Oh yeah forgot to tell im using 1650 batt.. 5hrs + now and 12% more. Doing youtube since my last post.
[Galaxy S II Original Android Development] knuckle03:
Here are the screenshots..
[Galaxy S II Original Android Development] sachinaik:
Thats pretty impressive.

Can u tell me which Rom u r using ?

Also are u using any under volting techniques to reduce battery usage ?

Any softs like juicedefender ?
[Galaxy S II Original Android Development] knuckle03:
Im on sensation rom. Nope. Just plain k 19. No oc/uv ( as far as i know hardcore doesnt allow oc/uv on his kernel ) no juice defender or any battery saving apps.. I did a fresh install though ( flash stock samsung firmware ) maybe that did help.
[Galaxy S II Original Android Development] sachinaik:
Thank you.

Just had a look at sensation rom. Looks impressive. Will try it later...
[Galaxy S II Original Android Development] sachinaik:
Hardcore,

Why is the 7MHz overclock in GPU by the way ?

Isnt that going to make speedmod kernel consume more battery.

I saw a 1.9 user post, he was saying that the deep sleep is good but when mobile is in use it consumes more battery than v1.8.

I suspect its because of gpu overclock.

Can anyone suggest me a tool like cpuspy which does read gpu speeds, say gpuspy ?
[Galaxy S II Original Android Development] shumo:
I was wondering the same thing. Why the 7mhz overclock?

Any reason for it or just because it.Is stable and possible?

Do the 7mhz worth the possible battery loss?
[Galaxy S II Original Android Development] chrisjcks:
I was getting a massive drop on battery if i reboot. (only sometimes)

Ie. 75% down to 25% etc

I've never experienced this in past versions.

A format fixed it, as re-flashing, wiping stats, fixing permissions etc didn't fix it.

Since the format, ive had it happen once already - down from around 50% to 22% just from rebooting whilst charger was plugged in.

So far, it's not happened today - but maybe there is a bug?

Anyone else have this happen to them on the latest version?

Thought I'd at least mention it anyway :)
[Galaxy S II Original Android Development] Chanz09:
I have used the script but no difference was getting lag on everything. Even after few charges i flashed the rom again and k-18 final and everything back to normal. It just works best for mix usage and i use the phone alot.
[Galaxy S II Original Android Development] shumo:
hello

you can try this : http://xdaforums.com/showthread.php?t=1312273

worked for some ppl with similar issues
[Galaxy S II Original Android Development] goolby:
Can i update the Superuser app to 3.0.7 or should i live it at the version that it installs whit the kernel(2.3.6.1)? i mean are there side efects if i update to the latest version? I would like to update it to the latest version but i'm not sure, i don't what to screw someting in the function of the kernel. Also the same question goes for the Busybox to... Best regards, thanks and keep up the good work.

PS: english it' s not my native language.
[Galaxy S II Original Android Development] sachinaik:
You can update. There are no side effects.
[Galaxy S II Original Android Development] shingo86:
I have the same problem. My usage pattern is as follow:

- Power on/Reboot the phone with ear phones plugged in. Louder App is started. App icon appear on the top left

- Unplug ear phones. App icon disappear on the top left

- Plug in ear phones again after awhile like maybe 30mins or 1h. Louder App not started. No app icon on top left.

Anyone can help? or experiencing the same problem when using the app with speedmod? I am using k19 with checkrom v4. Thanks in advance.

Edit: Tested again. It happens only after ear phones is unplug and then replug in after a certain time frame. I tested with a 1h time frame, it might be shorter.

It works when ear phones is unplug and then replug in immediately.
[Galaxy S II Original Android Development] sachinaik:
Yes. It is going to reduce battery power by 2.5% if usage involves stock browser (uses gpu alot) and games.

I just have one more doubt! The clock is not struck at 267MHz right ? How can i make sure of it ?

speedmod nvr was abt clock changes, so i just want to confirm it, to be on the safer side.
[Galaxy S II Original Android Development] hardcore:
I noticed that all the other clockspeeds for the GPU except 160MHz are multiples of 33.3MHz, which I assume is derived from some base clock. So I thought I'd make it 167 which will be a multiple of 33.3. Who knows, it might makes things smoother. The 7MHz difference probably has no effect on battery life.
[Galaxy S II Original Android Development] goolby:
Deleted...
[Galaxy S II Original Android Development] KeesStolk:
@Hardcore, K2-19 works like a charm.

Smooth, fast and great battery, lost less then 1/2% a hour at standby.

With my normal use, i can get more then 7 hours screen on time.

Cheers:

Confirmation number: 50233742UF946963H.
[Galaxy S II Original Android Development] goolby:
@Hardcore ...

You can confirm this please?

Best regards, goolby
[Galaxy S II Original Android Development] hardcore:
It works for me.
[Galaxy S II Original Android Development] goolby:
Ok thaks... I'll try it then :)
[Galaxy S II Original Android Development] ALWA7SH6:
what is that mean ??
[Galaxy S II Original Android Development] Soviet_Rebel:
Hi mate, Don't want to be rude, but that's been said a thousandzillion times in this thread. Speedmod Kernel doesn't support (probably never will) BLN. If you you feel the urge to use BLN, switch to another kernel, there are many others which support BLN (eg: Siyah).
[Galaxy S II Original Android Development] ALWA7SH6:
Calm down man :confused:
[Galaxy S II Original Android Development] marcinl:
ALWA7SH6

use NoLed (free from Market)

It's better soft

more options
[Galaxy S II Original Android Development] Soviet_Rebel:
Calm down? I think i've been kind to you.....Bah!

Next time try using the search button, you would have found the answer in a matter of seconds.
[Galaxy S II Original Android Development] CamoGeko:
What is up with all the bln lovers here, guys is it really that difficult to press the power or home button? It will save you some battery juice as well, since its been proven that bln causes constant wakelocks.

Communicated using an SGS2 droid with XDA premium neurotransmitter while DJ'ing on the Enterprise.
[Galaxy S II Original Android Development] ziroxs:
Hi, thx for the Tegrak Option.

Now i changed the CPU arm and internal voltages for my phone because i can use less voltages then for example the Phenomenal 2.2 Extreme :rolleyes:

My first impression is smooth like my actual Siyah 2.6.11 ;) no SoD, fast deep sleep and stable. :o
[Galaxy S II Original Android Development] ithehappy:
Sorry for this stupid and OT query, but what's that font? :confused:
[Galaxy S II Original Android Development] the_gunners:
did you browsing using wifi or 3G?
[Galaxy S II Original Android Development] knuckle03:
A lil bit of 3g not more than an hour, the rest wifi.
[Galaxy S II Original Android Development] ziroxs:
Hi.

I used i all cases fresh rom installations. Speedmod K-19 uses for me too much android OS.

- fresh installation of Batista70 Foxhound Edition + Speedmod K-19 = every hour 10 min android OS usage

- fresh installation of SlimROM by Krinyo 1.1.2 + Speedmod K-19= every hour 10 min android OS usage

- fresh installation of turkbey rom v32 + Speedmod K-19 = every hour 10 min android OS usage

Then i try all these above listened ROMs with Siyah 2.6.8 = 45 sec Android OS per hour in standby mod !

Someone have similar issues like me?

all test without Tegrak app. no other apps installed in additional.

thx
[Galaxy S II Original Android Development] ephraim:
Sorry, accidentaly pressed thanks :D
[Galaxy S II Original Android Development] KeesStolk:
That's somewhat strange.

Using it with Checkrom V5 and it's runs great with great battery life.

No high android os usage here.
[Galaxy S II Original Android Development] ziroxs:
I will and i must try again. :D Speedmod is to good as not to install ;) Because its very smooth, no laggs (noop/ondemand or should i use another combination with ondemand?)

Overnight for example i lost only 5% in 8 hours with wifi and email sync on. It is very good. Only i am wondering about this Android OS usage in my case.
[Galaxy S II Original Android Development] californicated:
I remember to have heard some kernel including siyah would only hide the Android OS bug ;)
[Galaxy S II Original Android Development] KeesStolk:
Curieus how it will be with Checkrom on your S2.

I must see that before flashing a kernel, i use the cleaning script.

http://xdaforums.com/showthread.php?t=1363738&highlight=cleaning+script
[Galaxy S II Original Android Development] ziroxs:
I use this script ever time i flash a new kernel. Thank you for advise. I am flashing right now again and before installing the kernel i deleted nearly all samsung apps from turkbeyrom v32.

And his S98tweak script. :D I will report later or give CheckROM a try (it was my first Custom-ROM on my SGS2)
[Galaxy S II Original Android Development] It_ler:
Results for SpeedMod / Phenomenal / void / N.E.A.K. / Siyah / stock kernels

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

For all custom kernels, I was running on Frankenstein XILA2 ROM (Modem: XXKL1).

For stock kernels, I was running on the corresponding stock ROM.

Always using the Samsung's standard / stock 1650mAh battery.

For void.echo I enabled the UV - nothing else.

For Siyah, as it has many, many configurable settings, I have changed nothing - just default settings.

For N.E.A.K. 1.3.x (Lulzactive) I tested VR schedule, Lulzactive governor, only enabled sched_mc and the rest unchanged defaults.

For N.E.A.K. 1.3.x (Lionheart) I tested VR schedule, Conservative governor, Lionheart tweaks, sched_mc enabled and the rest unchanged defaults.

Just tested SpeedMod K2-19 and added its results.

Here are my current results:

Benchmarks (in Performance governor if available)

Battery stats

SpeedMod K2-19 is another good kernel which is very smooth and stable on my phone.

Only the battery life was not as good as on other versions.

Maybe a have to do another/second battery cycle to verify my results.

As fenomeno83 published his last version of Phenomenal kernel (version 3.0 based on SpeedMod K2-19), I plan to test his one first, and will (maybe) re-do the test for SpeedMod K2-19.
[Galaxy S II Original Android Development] jonny68:
+1 totally agree
[Galaxy S II Original Android Development] californicated:
Today it was the second time with k2-19 test5 I got heavy battery drain until I disabled and enabled Wifi. Anyone else noticed this problem?

I'm not sure if it's the kernels fault.
[Galaxy S II Original Android Development] shingo86:
U might want to try the final version k2-19 first? Or use the kernel cleaning script?
[Galaxy S II Original Android Development] ziroxs:
Hi, regarding my higher Android OS i have some news ;)

I used the kernel cleaning script 1.7 (which i use every time) and installed TurkbeyROM v32 again.

Then i have delete with Android Emulator more than ~ 25-30 apps (Samsung an other Stock Apps).

Applied speedmod K-19 and adjust with the Tegrak Overclock Ultimate the voltages nearly like Phenomenal values.

Reboot...

Android OS usage after 11 hours is very very less in comparsion to my old values which were very high.

1,5 hours web browsing i lost 100 --> 91%, during the night i lost only 1%. Not one wake up during the night. Wifi and email sync were still on and i received over 10 mails tonight. But in the battery overview i can not se not one wake up. A wonderfull deep sleep.

thx Hardcore
[Galaxy S II Original Android Development] CandyAndy:
Actually yeah I am looking at it right now. Battery life has been excellent before but starting from last night where I dropped 30% in 7 hours while sleeping and now I am looking heavy drain while the phone is at the table. No idea wtf is going on. Already cleared RAM and restarted phone. Haven't installed any new apps also..
[Galaxy S II Original Android Development] ziroxs:
Hi,

here are my settings i adjusted with the tegrak app if someone is interested. The frequency of the gpu is very low because i dont play any games.

During the work with 2G i see no wake ups as well. I deleted this apps using the android terminal app. In my case i didnt need this apps.

Edit: please note that this apps below i didnt need and you can see them in the spreadsheet list.

https://spreadsheets.google.com/spreadsheet/pub?hl=en_US&hl=en_US&key=0AnO2-4y6yE1gdDJRekl4QmkyNmIzUmRvX2h3UDVkQXc&output=html
[Galaxy S II Original Android Development] hardcore:
K2-20:

- CPU hotplug and frequency scaling adjustments

- GPU frequency scaling adjustments

- FUSE module included
[Galaxy S II Original Android Development] KeesStolk:
Loving K2-19, going to test K2-20.

Edit:

Flashed (cwm version) without problems, looking good so far.
[Galaxy S II Original Android Development] yltan:
cpu arm voltages: 1200mhz = 1075mv (stock = 1250mv)

1000mhz = 975mv (stock = 1150mv)

800mhz = 975mv (stock = 1050mv)

500mhz = 900mv (stock = 975mv)

200mhz = 850mv (stock = 975mv)

cpu internal voltages: 1200mhz = 1000mv (stock = 1100mv)

1000mhz = 1000mv (stock = 1100mv)

800mhz = 1000mv (stock = 1100mv)

500mhz = 925mv (stock = 1000mv)

200mhz = 925mv (stock = 1000mv)

GPU

Step0 : 800mV/100MHz

Step1 : 800mV/134MHz

deadline/ondemand für scheduler/governor

I tried on Tegrak overclock Ultimate on K18 and K20 on stock 2.3.6. Both hanged when I tried to load the module. What am I missing?
[Galaxy S II Original Android Development] ziroxs:
hmm only loading the overclock modules results in a hang up or after applying the setting? (K18 doesnt support this module as i know, i used it with K2-19, with K2-20 not time to apply)

Perhaps my settings are too much for your phone.
[Galaxy S II Original Android Development] yltan:
I can run the app but it just hanged when i click the load the module.
[Galaxy S II Original Android Development] eseregin:
Great script! Exactly what i dont use as well!

Will try to incorporate in some CWM to burn it with holy fire after installing any ROM 8-)
[Galaxy S II Original Android Development] segelfreak2:
Your idea is correct, but:

It may also be possible that Samsung is not changing the multiplier, but instead the bus clock itself. So, assumed that there is a fixed multiplier of 8, it gives us:

On 33,3 Mhz bus clock:

8 x 33,3 Mhz = 267 Mhz

On 20 Mhz bus clock:

8 x 20 Mhz = 160 Mhz

Doing so, one would benefit from two battery saving effects: (1) reduced bus clock & (2) reduced core clock. So I assume Samsung is doing this this way and therefore I would recommend to leave the GPU clock speed at 160 Mhz instead of sclaing it up to 167 Mhz. I don't think Samsung picked such unusual clock speeds without a reason. And that reason, I believe, is that they are NOT scaling the CPU multiplier, they are scaling the bus clock.

If they would scale the CPU multiplier they would have picked a clock speed which is a multiple of the bus clock speed. In this case: 167 Mhz. But as I have said: I do not believe so.

Best regards,

segelfreak
[Galaxy S II Original Android Development] hardcore:
That is possible, but there is also a 134MHz speed in the drivers. That's why I am assuming 33MHz is the base.
[Galaxy S II Original Android Development] segelfreak2:
Yes, but I think 33,3 Mhz is the base bus frequency for the high-speed settings. On the lowest GPU speed, where u usually want to save as much battery as possible it makes more sense to reduce the bus clock, so you can benefit from both effects.

Both versions are possible... who knows....
[Galaxy S II Original Android Development] monster75:
Using Tegrak I can set 134 or 100MHz. So in this case what am I reducing?
[Galaxy S II Original Android Development] segelfreak2:
To be honest: I do not really know. I think to find out what is really going on it would be the best to have a look into the datasheet of the processor.
[Galaxy S II Original Android Development] monster75:
Just installed the k2-20 and applied this profile by Tegrak Ultimate:

CPU core voltages:

1200MHz = 1175mV (stock = 1250mV)

1000MHz = 1075mV (stock = 1150mV)

800MHz = 975mV (stock = 1050mV)

500MHz = 900mV (stock = 975mV)

200MHz = 875mV (stock = 975mV)

CPU internal voltages:

1200MHz = 1000mV (stock = 1100mV)

1000MHz = 1000mV (stock = 1100mV)

800MHz = 1000mV (stock = 1100mV)

500MHz = 900mV (stock = 1000mV)

200MHz = 900mV (stock = 1000mV)

GPU voltages:

266MHz = 950mV (stock = 1000mV)

133MHz = 850mV (stock = 160MHz/950mV)

Let's see ;)
[Galaxy S II Original Android Development] chrisjcks:
Bit OT, but What's internal voltage?

I've only ever seen core voltage figures before?
[Galaxy S II Original Android Development] liljom:
super job, like always :)

do you plan to include the touch new recovery?

and one more thing, my stats say, that CPU is @1000MHz only few seconds. I uses 200,500,800 and 1200 mostly.
[Galaxy S II Original Android Development] DaLuigi3:
@hardcore

thanks for your great work!!:)

is it possible to make this kernel compatible for AOSP ROMS?

i switched to MIUI ROM and now i can't switch back but i want this Kernel on my SGSII.....

greetz
[Galaxy S II Original Android Development] Mayday_XL:
Where is the difference?

Hubraum statt Wohnraum
[Galaxy S II Original Android Development] ziroxs:
I assume you need two or more voltage supplys for a cpu. You have the process kernel and the periphery like controller or similar modules.
[Galaxy S II Original Android Development] ozzyita:
K-2 20 feels good, will try battery out in next few days ;-)

Inviato dal mio GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] marcinl:
on k20 litle lags in Asphalt 6 Andrenaline (v. from Samsung Apps)

on k19 A6A working great
[Galaxy S II Original Android Development] knuckle03:
I got freezes clicking volume in setting> vulome and in my files while renaming a mp3 file. It froze for like 5-10 secs then force close..this only happen in k-20. Revert back to k-19.
[Galaxy S II Original Android Development] luexi:
It is godly lag for the transition between pages using LWP with go launcher in K20.

K19 is already lag, 20 is even worse.

Revert back to 18 for the best expierence!

Anyone agree?
[Galaxy S II Original Android Development] JmPTaz09:
Hardcore,

Are you willing to release an AT&T (i777) version of your kernel, which looks great? Gokhanmoral does it and Knzo did it, so I'm thinking it can't be too hard. I asked simone and he said he doesn't want to cuz he can't personally test... I understand this, but it shouldn't really affect any behaviour in the kernel just by making it AT&T compatible. Let me know; you will gain a lot of new fans if you do! I'll be glad to test.
[Galaxy S II Original Android Development] hardcore:
Similar to simone, I can't test it myself, so I am also reluctant to release the kernel for it. Although maybe I will have a look to see what it takes, and maybe try it in the future.
[Galaxy S II Original Android Development] chrisjcks:
Is it a placebo effect in my head or is the latest version (k2-20) producing some stuttering on home screen scrolling?
[Galaxy S II Original Android Development] segelfreak2:
After intensive testing of K20 I went back to K19 this morning.

My experience with K20:

- I can confirm the lagging in Asphalt 6 Adrenaline

- I can also confirm the lagging in GO launcher

- I had several freezes (~5 sec) using Root Explorer & Titanium Backup

After flashing back to K19 I could not reproduce this. So I did completely flash my phone with a clean firmware & tested it again. But again: K20 was no good for me. So I will stick with K19 for now. K18 is unfortunately no option for me, because of the missing TEGRAK support.

But maybe I will switch completely to the Siyah Kernel... It does not produce such high benchmark results but it is said to be very smooth in scrolling & using. I will see.... depends on how the Speedmod kernel is developing in the future. Hopefully I can remain with Speedmod K21.

Best regards,

SF
[Galaxy S II Original Android Development] Bommeke:
Haven't got any lag or freezes whatsoever. I'm using GoLauncher. Used the Kernel Cleaning script before flashing to k2-20, maybe people should try that.

*Kernel Cleaning script
[Galaxy S II Original Android Development] panteleimonov:
may be for me this is the best release after k2-16.Awaysome battery life.No freezes,FC,or something like that.Great job,hardcore! Move that way! :P
[Galaxy S II Original Android Development] ziroxs:
I got freezes with K2-19 with root explorer as well. But i thought that was due to my hard tegrak app settings. I raised up for 25mV and then were no issues anymore.

With K2-20 and descreasing the voltages for 100 mV in each step (arm+internal voltages) i got no freezes.
[Galaxy S II Original Android Development] crash_194:
I'm just running the k20 kernel as it comes and I'm finding it very smooth and the transition animations seem absolutely rapid, smooth and stutter free.

I wasn't overly keen on k19 as I'm sure I was noticing alot of micro stutters just in general use.

Battery life has been good for me on nearly all speedmod kernels so can't offer a great deal of feedback there.

Thanks again for the contribution Hardcore!

Sent from my GT-I9100
[Galaxy S II Original Android Development] chrisjcks:
Thanks, I'll give 20 another go :)

... I think it's great that past versions have included voodoo louder & Tegrak support.

Better volume & better battery with undervolt - can't be bad. :)
[Galaxy S II Original Android Development] crash_194:
Yes the support is good however I've never experimented with undervolting and I don't listen to music on my phone using headphones so neither really benefit me! Lol

K20 does seem very good to me so far and I always trust hardcores judgement and approach to the kernel tweaks he makes (mainly because he seems to know what he's on about and I haven't got a clue!) :-D lol I do always google the info he provides though to try and learn a bit about what he's doing.

Sent from my GT-I9100