yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] :
Quadrant scores got higher with echo!! :) no instability problems (as for the previous versions) until now.. 100-1200 with included uv, fsync disabled.

We will see battery life and Wifi related things..will report back tomorrow!

Question: what is the purpose of ext4 journalis, and pros and cons of having it disabled?

Cheers, and keep up the good work!! ;)

Sent from my SGS2 - Checkrom Revo 3.1.1 | Speedmod k18 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] Thedonk13:
I wanna flash Echo so here is a screen shot of my use with Charlie....1day 12hours...average use...nothing major...but it's what i want for a daily driver

notice that little R above my signal...ya, i'm out of my coverage area so when i'm not on wifi, i'm roaming 24/7
[Galaxy S II Original Android Development] paulyluca:
Echo is mooth and fast like hell! :).

As fast as the updates and bugfixes are comming.

Thank you for contributing to this forum.

Without XDA and the community of developers, we would be stuck with shipped roms and kernels. And that would be a shame. We would newer experience the real potential of our devices.
[Galaxy S II Original Android Development] :
Had my fist sod. On my previous post just above you can find my settings. Will now kill uv and see. I doubt it does affect battery life...

Sent from my SGS2 - Checkrom Revo 3.1.1 | Speedmod k18 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] paulyluca:
17% Display? Zou did not used the device very much, did you? :)
[Galaxy S II Original Android Development] ram3n:
Delta works very well, no SOD, smooth and battery friendly :)

Best idle so far.

I've UC 100-800 Mhz with UV settings :

100 - 825mv

200 - 850mv

500 - 875mv

800 - 975mv

Will give a try to echo, with the same UV settings of course ;)
[Galaxy S II Original Android Development] kartalgurhan:
- Added AOSP support (CM, MIUI, Oxygen) > experimental

- No more GPU clock/vdd support (unstable)

- Frequency range now 200 - 1200 Mhz (some can't handle 100 Mhz)

- Some wifi patches to see if it consumes less power

Arghhhhhhh I was very happy without those... :rolleyes::o
[Galaxy S II Original Android Development] Thedonk13:
i used it for 1hr 15min...45 minutes of that was using the GPS/Navigation to get to the pie shop...

i didn't stress test, just wanted to see how it would handle my daily use...i'm not a heavy user, never said i was....

this is a typical use by me...few phone calls, texts, FB browsing/uploading pics...when i read books or comics, it's usually while i'm on the john or traveling..
[Galaxy S II Original Android Development] knzo:
Same as fsync. Pro: perfomance. Con: data integrity.
[Galaxy S II Original Android Development] Toss3:
Amazing work! My SGS2 flies now! Do you have a donate-button somewhere? ;)
[Galaxy S II Original Android Development] jangomango:
What's better? Lulzactive or Lion heart?
[Galaxy S II Original Android Development] spirt:
download modules option doesn't work for me in void settings. i've got the next message for every module

wget: bad address 'dl.dropbox.com'

ps: i'm on echo now
[Galaxy S II Original Android Development] Mighty_X:
I would like Support of custom Boot Animations please.

Greets, will Test foxtrot..
[Galaxy S II Original Android Development] Toss3:
Worked fine here.
[Galaxy S II Original Android Development] ephraim:
one random reboot with echo here
[Galaxy S II Original Android Development] naturist:
wow wow wow..Amazing work again knzo (nick changed :p). Glad to see your support for Galaxy S2. I love your void forever, devoid series earlier on my optimus one. Love the simplicity, tweaks and great effort done by you. Thanks for the effort.
[Galaxy S II Original Android Development] jonny68:
Just flashed the "echo" and everything went smoothly, kernel looks promising on paper, however i hope it's not like Siyah, very good kernel which ive been using up to just before i flashed this but every day you had beta releases and it all gets a bit too much, would fry your brain on that thread the same people on all day every day discussing scripts,performances, benchmarks,etc,etc:eek: all im looking is for a kernel that is battery friendly first and foremost i cant be dealing with daily beta releases,hopefully this is just that ;)

---------- Post added at 10:43 PM ---------- Previous post was at 10:40 PM ----------

I've set SetCPU to Min 200- Max 1000 - Lionheart so will see how this goes, ill charge the phone to 100% and leave on overnight with WiFi on and report back on battery life tomorrow.
[Galaxy S II Original Android Development] SupraN0va:
''what a shame'' ?? Show some respect to the DEV. Stay polite, if you want OC to 1654 mhz , then ask if it will be available in next version. But not this way.:-*
[Galaxy S II Original Android Development] jonny68:
Forgot to ask i notice the boot animation is the normal Samsung one i had the Galaxy Nexus one i assume it's ok for me to flash this with this kernel?
[Galaxy S II Original Android Development] knzo:
Read it carefully. It stays GPU, not CPU. And the 1200 is regarding the default max frequency. The CPU can still go to 1.6 Ghz.
[Galaxy S II Original Android Development] SupraN0va:
Would you?:-D
[Galaxy S II Original Android Development] colatehjorth:
Just tested this with Miui and I can't change the themes.
[Galaxy S II Original Android Development] lilbrat:
to be honest I don't know.. you would do better to siyah kernel thread as I don't know very much about them..but I have not done anything to the phone like oc'ing or anything like that..
[Galaxy S II Original Android Development] glenncain:
now i know i'm a heavy user. lol.

screen on data sync for fb and twitter every half hour at least, read xda, read tech news app, 20 to 50 sms per day? damn
[Galaxy S II Original Android Development] micmaccc:
yes knzo, could you please attached it in xda, much easier for us to download via xda apps ;-)

Sent from nokia 3210
[Galaxy S II Original Android Development] :
Just had a strange behavior mate: left the phone with 28% battery, wifi on, 100-1200 no undervolt, no f sync, went out and 6 h later it's turned off with 0% battery.

Note that with syiah weeks ago i used to' have 100mhz and much more uv than now, and it never gave me random reboots, instability or dead battery problems.

I hope that foxtrot wil be more stable and less battery hungry when awake ;)

Cheers mate! ;)
[Galaxy S II Original Android Development] theooo:
Dude, if u think this kernel doesn't fit ur need then u can skip it and use other kernel. Sgs ii had lots of kernel devs. But if u willing this kernel to support features u hope i think u can ask politely to the devs..

Doing a kernel thing isn't as easy as flipping our hands, so there's nothing to shame. :)
[Galaxy S II Original Android Development] shahulvm:
vod.delta was just perfect

void.delta was just perfect for me...as i was using speedmod kernel and missed the undervolting functionality.

Cameover to this kernel and was quite happy with the efficiency of void.delta kernel. Got good battery life after changing the gov to lulz, undervolting and dimming the min brightness..

do we still have UV features in void.echo?
[Galaxy S II Original Android Development] i04055:
knzo, is it normal to get my phone is not in deep sleep state when charging?

It seem to stay at 200MHz over night instead of deep sleep...

I had my phone charged over night and here is the cpu spy...
[Galaxy S II Original Android Development] shahulvm:
Phone does not go to deep sleep while charging.. thats normal
[Galaxy S II Original Android Development] Thedonk13:
as far as i know, this is common....had it on speedmod and noticed it on void as well
[Galaxy S II Original Android Development] mystifiyer:
In fact, I am glad people like you are not joining in. Hope those who can't read instructions or search fall under this category too.
[Galaxy S II Original Android Development] mariosraptor:
@knzo. Hi i was using delta and it was working pretty good and then saw echo was out and flashed that. That messed up my phone. After 5-10 seconds after boot phone freezes and i had to continuously press on/off button to turn off the device.

So went inyo CWM wiped cache and dalvik and reflashed delta.

With delta same results. Had to flash to charlie to make phone usable again.

Just for the record md5sum was correct on all kernels.
[Galaxy S II Original Android Development] omniwolf:
you can use the void interface to enable UV/OC, read the first post and look at the attached screenshots.

however i may have misread, the void interface allows you to enable "safe" UV levels, i don't think you get to tweak it yourself.

from my experience UV is seriously overrated. if you can get the phone into consistent deep sleep you'll get great battery life.
[Galaxy S II Original Android Development] Fauert:
Hi , Yesterday at 10 PM 100% batteri , now 4.30 AM 96 % !!!!!

Deep Sleep 85 % . I NEVER have seen souch batteri life. WOAW :D

On Checkrom RevoHD 3.1.1 and ECHO . Snappy , NO SOD , fast as hell !!

Thank`s . Where is DONATION BUTTON ?? :D
[Galaxy S II Original Android Development] shahulvm:
Thanks Mate

Oops....installing void.echo has removed all my scripts from init.d :(

Time to test my backups and search for the tweaks I had put in
[Galaxy S II Original Android Development] spirt:
strange behavior of the echo this night. the screen was on more then one hour while i was sleeping.

wanamlite 6.0 xwkj3, modem xxki4, empty init.d, def vol/freq settings
[Galaxy S II Original Android Development] s2d4:
This what your phone said:

"I SEE DEAD PEOPLE"
[Galaxy S II Original Android Development] eseregin:
You are a great translator from Phone language to Human been 8-)
[Galaxy S II Original Android Development] Dr.Love:
You should read the first post of this thread more carefully !

But best of all you should backup previous ROM before flash any thing.
[Galaxy S II Original Android Development] shahulvm:
Agreed, i missed it :( restored from backup
[Galaxy S II Original Android Development] s2d4:
o snap, you should've read :P

Keep it up dude, you'll get there I hope..
[Galaxy S II Original Android Development] Bushido76:
Echo Test

Hey knzo,

enclosed are my impressions of the first hours with echo:

- benchmark problem is solved - like supposed the GPU-code was the problem (on SGS I most developers decided against GPU OC/UV)

- auto UV-Setting is working fine (did some stress testing without any issues)

- overclocking to 1400 MHz is working fine too

- overclocking to 1600 MHz brought some freezes - maybe I could solve it by more UV or OV but I'm not interested in toasting my CPU. :D --> btw. 1600 MHz will produce a heavy battery drain in comparison to 1400 Mhz...

Small Issue:

- I cannot download the modules via wifi (mobile network disabled) --> wget dropbox-error

Conclusion:

- I would keep the UV/OC-code in the kernel, because this part seems to work fine.

Idea:

- What about including the governors as modules. You could realase the kernel just with lionheart enabled and the user could decide whether to load additional modules/governors.

Bushido
[Galaxy S II Original Android Development] gastruder:
how to save battery

wat is the best method to get more juice when phone is in use,

with this echo kernel :confused:

as i read till now only oc/uv can doo something on that.

afcorse standard saveings are already done, mostly on screen.

---------- Post added at 09:16 AM ---------- Previous post was at 09:09 AM ----------

some errors occure on modules download with my wifi.

as i can see they are on dropbox and i have my dropbox already installed.

maybee this is reason :(
[Galaxy S II Original Android Development] -ph-:
I've found 1 issue:

When the phone is in deep sleep, if somebody makes you a call or the alarm wakes up, the ring starts with hiccups and the phone drags himself.
[Galaxy S II Original Android Development] bunnybash:
When I run the quadrant benchmark tool, then click on System Information, under the CPU info it says that I only have 1 core, all the other information about the CPU is correct except for this, is there any way that my phone would only be functioning with 1 core?
[Galaxy S II Original Android Development] SupraN0va:
This is just the current stat, showing that info need not both cores ;-)
[Galaxy S II Original Android Development] LaMaaH:
Works with MIUI by Langtang, and running smooooooooth.. :D

http://xdaforums.com/showthread.php?t=1307266 this version of MIUI incase anyone was in doubt.
[Galaxy S II Original Android Development] grisha1:
RomKitchen ki8, no tweaks in init.d

SGS2 via Tapatalk
[Galaxy S II Original Android Development] knzo:
Tomorrow I'll release .beta, I just want to test it better overnight.

This version will include some fixes, patches and a few tweaks. Among them the fix for the deep sleep! Lionheart has also been tuned a bit and it's now more gruesome.

And of course, more crap has been removed. The kernel itself has now a ridiculously low size of 2.2 MB.

Performance also seems to have got boosted again, I got this in

1.4 Ghz

with rawr on. If I had 1.6 Ghz OC support it would be a new record I guess. ;)
[Galaxy S II Original Android Development] theooo:
Hello knzo, it's awesome that there are new 'real' developer here, especially kernel dev :D

From what i read on OP this kernel look promising and will test it as soon i can reach my pc at home .

I hope this will be the best kernel out there.

And since this phone sold more than 30 millions in the whole world in just couple of months, i hope u can ignore 'noobs' (asking without searching first, asking thousand times answered question, asking eta even u wrote no eta, etc.) Before u got pissed off :)
[Galaxy S II Original Android Development] Thedonk13:
i could care less about quad scores, they really dont matter much too me...BUT, i love small and love fast! sadly, the inability to wake my phone caused me to go back to speedmod...looking forward to the beta!!
[Galaxy S II Original Android Development] sunwee:
can't wait to try the new version. hopefully the sleep bug is truly fixed.

speedmod is great but no support for BLN. and siyah, also another great kernel, is starting to become unwieldy as the developer tries to cater for everyone.
[Galaxy S II Original Android Development] snailmale:
Looks very promising, will be looking forward to beta!
[Galaxy S II Original Android Development] eseregin:
Thank you for your work!

Much appreciate your explanation why you do things, for example SpeedMod kernel thread has no explanation of why adding or removing something... Imho people here want to know "How does it works" 8-) Who dont want, use official firmware and dont visit this forum at all 8-)
[Galaxy S II Original Android Development] mariosraptor:
The battery life is awsome and i have not even madr a full charge cycle. The wake issue is same knzo's. A few presses and phane wakes up. Nothing tragic. I am on Simple&Clean 2 atm.
[Galaxy S II Original Android Development] _Garry_:
I like your concept of the kernel and i'm looking forward to the beta kernel.

like it was said, siyah kernel is a good kernel but gets overloaded. nothing against different rom supports, but adding to much stuff is just to much.

i only hope this kernel can -maybe will?!?- work with insanity cmXX which is based on latest cm7 build.

Sent with an insane SGS2 crosing time and space.
[Galaxy S II Original Android Development] SupraN0va:
This is furious. 2,2 mb on next release O.o. This is impressive.
[Galaxy S II Original Android Development] Remoteconcern:
Agreed, this kernel seems the perfect counterpart for insanity/AOSP ROMs - exactly the same ethos behind the creation of it.

Are you sure you can't be tempted to make it AOSP compatible? :D
[Galaxy S II Original Android Development] :
Any battery life report yet, while waiting for beta? :)

I have the best battery life and smoothness with speedmod right now. My little experience with android is not enough to fully understand the difference with this kernel here, and why it should be better having the objective of taking a balanced approach towards battery life and performance. Could someone experienced please shed some light on this matter? :)

Sent from my SGS2 - Checkrom Revo 3.1.1 | Speedmod k18 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] mariosraptor:
Any one with wake up issues,if using setcpu do NOT use a screen off profile.
[Galaxy S II Original Android Development] Ipy219:
dude..you made wonders for my ex-phone optimus black..i know you'll be great on sgs 2 too..good luck!
[Galaxy S II Original Android Development] _Garry_:
Solong I understand, the Dev is aiming for a small kernel without the loos of performance and batterylife. His motto seems to be: simple and small but powerfull.

The difference to speedkernel is the size and the way both kernels work.

Hardcores kernel is based on a basic kernel and is tuning it.

This kernel seems to be the same but with "deep hardcore" tunings to make it more faster and keep the smoothness, even the batterylife. i guess when this kernel goes in beta it can break speedkernel in matter of battery life- ofc without using kinds of setcpu.

take alook at siyah kernel. first it was fast and small,but now its getting fat, which will result in problems. just read the thread and you will understand whati mean.

Sent with an insane SGS2 crosing time and space.
[Galaxy S II Original Android Development] knzo:
No, I can be tempted. But not yet.

Anyway, beta is out. Even though it's called beta because that's how I will name the versions (next is charlie, then delta) I don't feel it's such experimental anymore - deep sleep issues have been fixed and this release seems much more mature than alpha did in stability.

Enjoy and keep the feedback coming.

P.S. Always read the changelog when a version is out and check FAQ for new entries or new * colors in the description. I write and try to explain everything I do because this is not a service or a good you are using, it's knowledge I'm trying to share and this always leads to a better experience.
[Galaxy S II Original Android Development] Talvathir:
First attemp on void.beta, still getting the SOD. Tried 2 more restarts, same outcome everytime.

Hyperdroid latest version.

Not using voltage control, set cpu, no-frills etc.

Have cleared cache and dalvik between each run.
[Galaxy S II Original Android Development] jellyb:
will be following this project, thanks for your work!
[Galaxy S II Original Android Development] justsimple1:
Still same...cant wake up my device...
[Galaxy S II Original Android Development] Remoteconcern:
I look forward to it, sir!
[Galaxy S II Original Android Development] :
lion heart has indeed better performance, but which is more battery friendly, this or lulzactive? :)

Sent from my SGS2 - Checkrom Revo 3.1.1 | Speedmod k18 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] Arkanius:
A Portuguese developer. Wonderful!

Anyway, from which Samsung source drop is this kernel based? The 2.3.5 sources?
[Galaxy S II Original Android Development] atulalvenkar:
knzo loved your void ROMS for Optimus One. Tried void.delta on my SGSII. It has awesome standby battery life, but pretty poor screen on life. 1% every 2 minutes without doing anything just screen on.

Going to flash echo and report back.
[Galaxy S II Original Android Development] -ph-:
Problem solved: changed the governor to Lionheart (it was with lulzactive)
[Galaxy S II Original Android Development] GuestK00150:
really great!

Would love to see the "device settings" working in cm7. Are you going to implement that feature?

THANKS
[Galaxy S II Original Android Development] thenoble06:
Really happy with void.echo.

I disabled fast dormancy, tweaked the auto brightness settings, use Green Power to control WiFi and Mobile data and used the slight UV setting from the void interface and I'm really happy with the performance and battery life. I need to test it more - but so far so very good!
[Galaxy S II Original Android Development] :
Echo working good on galnetmiui ics.
[Galaxy S II Original Android Development] sid9922:
Just have some noob concerns.. What is the modules suppose to do? Thanks
[Galaxy S II Original Android Development] knzo:
If you don't know what the modules mean, then you don't need them.

These modules are very specific.
[Galaxy S II Original Android Development] Chenglu:
void echo:

insmod /lib/modules/j4fs.ko

insmod: can't insert '/lib/modules/j4fs.ko': invalid module format
[Galaxy S II Original Android Development] :
Any hint about foxtrot change log...? ;))

Sent from my SGS2 - Checkrom Revo 3.1.1 | Speedmod k18 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] lufc:
FFS Come on Guy's why??

Please Please lets keep this Clean and on Topic

Sorry if your post got caught up in the mass culling:)
[Galaxy S II Original Android Development] alinawyx:
i was using void.echo, when i flash to Siyah v2.2.. everything was fine, until when i flash back to void.delta, and my CWM says my kernel is incompatible with CWM 3.0.. and now i can't flash .zip with CWM, i've to do into recovery mode to flash.. what can i do now?
[Galaxy S II Original Android Development] AndreiLux:
You need to revert to CWM App 2.x, since void doesn't have the kernel compatibility for 3.0 which was flashed over 2.X when you used Siyah.
[Galaxy S II Original Android Development] alinawyx:
how do i that?
[Galaxy S II Original Android Development] AndreiLux:
Install the old APK; http://groups.google.com/group/indi...e232f1af4d7?show_docid=4c764e232f1af4d7&pli=1

Google another source if you can't use that link (google login).
[Galaxy S II Original Android Development] knzo:
Foxtrot will take a bit. Don't expect an updates' rythm as before.

Especially this weekend I won't have any time since I have a huge anamnesis to write.
[Galaxy S II Original Android Development] Arkanius:
Not sure if you saw my previous post knzo, but is the kernel based on the 2.3.5 Samsung sources (update3)?

It's just because (I could be wrong) but the sound quality seemed different compared to other kernels. (Including stock)

I must do some A/B testing
[Galaxy S II Original Android Development] alinawyx:
it's working now, thanks ;)

Edited: Once I reboot my phone, it goes back to CWM 3.0 again..
[Galaxy S II Original Android Development] Thedonk13:
Hey KNZO, a REAL void related question...

i had great battery life on CHarlie, flashed Echo, and the drain is pretty aggressive....

what settings in your Void setting's UI do you recommend for best battery life?
[Galaxy S II Original Android Development] AndreiLux:
Ah. You need to remove the old (3.0) apk from /app/ with a file explorer and put the new one in there. I'm not sure if just installing by running it will keep it there.
[Galaxy S II Original Android Development] knzo:
Yes.

Hm, any of them shouldn't have an impact on the battery.

The most stable configuration is "as is". Changing stuff on void settings will only affect performance.
[Galaxy S II Original Android Development] LaMaaH:
Running smooth with Galnet MIUI 1.11.25 :)

Infact, extremely smooth! :D
[Galaxy S II Original Android Development] alinawyx:
is there a file explorer which i don't have to pay for it, that can achieve this result?
[Galaxy S II Original Android Development] beaver2233:
Astro should be able to do it?
[Galaxy S II Original Android Development] alinawyx:
i already tried astro, it says /system/app: Read-only file system

i tried using android terminal emulator, it gives the same result..
[Galaxy S II Original Android Development] :
Search in google: root explorer 2.17.2 apk and download it
[Galaxy S II Original Android Development] jlevy73:
Root explorer is a paid app available in the market.
[Galaxy S II Original Android Development] sunwee:
both estrong file explorer and file expert has "root" functions and are free, but both claim the function as still experimental. but in my experience, for the occasional file copy/delete, they worked ok.

root explorer is still the most reliable and stable if you intend to do a lot of stuff on the system partition. but you gotta pay for it.