yashsingh1/xdaforums huggingface dataset:
[Galaxy S II General] :
Undervolting :

It's a good experiment but the processor may be pushed into an usafe operating area where some people may find theirs can't cope. If it was safe the manufacturers would be doing it as standard. Don't do it if you need it to be 100% reliable. As an experiment it's very interesting and may give some worthwhile gains.

It's not going to be laggy but if you can stand a reduction in performance then slowing the clock speed is a safer way to save battery, rather than reduced voltage.

Overclock and overvolt terms are very common on computer PC. However, this will increase power usage and generate more heat. Not so good to try it on smartphone. So the other ways ~ underclock and undervolt should be better on smartphone like Samsung Galaxy S II, right? Yes, to improve battery life. Underclock may not be so efficient in performance / walt ratio. But undervolt surely will improve battery life while maintain the overall performance speed.

For example, by underclock from 1.2 GHz to 1 GHz, speed performance drops 16.67% but voltage usage drops 6% only from 1250 mV to 1175 mV. Therefore, it is better to just undervolt only and keep the highest speed stage. Let’s say by reducing voltage from 1250 mV to 1150 mV at 1.2 GHz speed stage, you will get 8% voltage usage reduction while maintaining 1.2 GHz speed.

How to undervolt Samsung Galaxy S2?

1.Install custom kernel that support undervolt.

2.Install SetCPU.

3.At Voltages tab, select the desire value for each speed stages.

4.Note – try to reduce 25 mV each time.

5.Click Apply then.

6.Run Stress test ~ Stress CPU to test stability (located at Info tab).

7.That’s all.

Note – Only check ‘Set on Boot’ when you are confident that the undervolted values won’t hang and stable all the time.

Each phone has its own CPU chipset. Other people’s SetCPU voltages settings may not work for you. Therefore, you need to try lot of the settings until you get the lowest voltages and stable for daily use.
[Galaxy S II General] pelpa87:
thanks, very usefull!!!

in fluxi kernel i already have de option to UV...and from what i've been reading, someones use steps for this. how do i configure those steps..because in the UV menu i have all steps, but as i've seen, some people use only some steps...
[Galaxy S II General] bajee11:
One of the rare people I've seen that could explain something like UV in an understandable manner to others. Keep up the good work mate. ;)
[Galaxy S II General] aceofclubs:
Hi bajee. Thanks for all the great info. And everyone for this great thread.

I've been using your setting on hydrogenics_1205 and fluxi_rc5 and my device is coping very well.

Going to give sched_mc level 2 and hotplug dual CPU mode a try and see if there is any extra pros or cons.

Q: have you any results for this? Any tips?

Thanks

----------------------

GTI9100

HydrogenICS 12.05

fluxi xx.01_rc5
[Galaxy S II General] hellsgod:
Undervolt saves maybe 4-5% on each battery cycle. So not very much. Do it if you want, but UV is overrated.

hells

Vom Taschenrechner gesendet
[Galaxy S II General] Tarun.krthkr:
I m on hydrog3n ics latest build and fluxi rc4...mediaserver is eating a lot of battery..I m losing 2% of battery per hour wen phone is idle...any help?
[Galaxy S II General] grzesdroid:
@ bajee11

What do you think is better for the battery SCHED_MC 0, 1, 2?

fluxi rc5
[Galaxy S II General] Theodhoro:
Hi!

First of all thank you for this thread, it is very helpful!

I have heard great things about hydrog3nics and fluxi kernel so I decided to test it.

So my combo is hydrog3nics 13.05 and fluxi rc5.

My kernel configuration is the same as bajee11's, in the second post, with fluxi rc4.

The only difference is that I added +50mV at all levels of the CPU.

Here are screens of my results:

So as you can see, there is a problem.

It is surprising that "Plateforme android" is at 62%!

I note that my use was very light!

Do you have advices to help me improve this?

Thank you for your help!
[Galaxy S II General] Hawlery:
That's normal in ICS i think. If you don't use the phone a lot, android OS shows a high usage. The total percentage must add to 100% somehow.

But if you're still not convinced whether it's normal or not, look for wakelocks with betterbatterystats app.
[Galaxy S II General] Fille84:
I also think that its pretty common with high os when you just flashed something.

Use it a bit more then charge it again and the high os might be gone.
[Galaxy S II General] bluefa1con:
dsp manager doesnt work with fluxi

someone from germany should tell fluxi to get the patch from codeworkx's kernel
[Galaxy S II General] blackknjght:
If i install and use UV, can it effect to SETCPU and xxTweaker ?

Can i combine them to get better result ?

---------- Post added at 03:58 PM ---------- Previous post was at 03:56 PM ----------

Me too, Can RC5 solve some problem as RC4 ? Do yuo know other way to solve this problem ? BTW, My battery lose a lot for android system.

---------- Post added at 04:17 PM ---------- Previous post was at 03:58 PM ----------

as first page, i think disable is best , doesn't right?
[Galaxy S II General] Theodhoro:
Thank you for your answers!

I installed betterbatterystats but I don't know how to interpret the results. There are five options: Other, Partial Wakelocks, Kernel Wakelocks, Alarms and Process.

Kernel wakelocks is empty. But there are a lot in Partial Wakelocks, the most important is webdemon wakelock for 10 minutes. The others are under 2 minutes so I think they are not relevant, or I'm wrong?

In Process there are a lot but all under 1 minute so it's probably not a problem.
[Galaxy S II General] Gent.XDA:
Still no abyss results? :)

I'm trying to compare abys and fluxi atm and your input is greatly appreciated
[Galaxy S II General] bajee11:
I disable sched_mc if hotplug is on. I find it's better this way, since sched_mc level 2 only works when second core is activated and hotplugs function is to turn on second core only after a certain threshold. So you could see the reasons why I do that.

Look at my answer above^

UV is not an app. It stands for UnderVolting.

MediaServer usually scans at boot and then should stop after. Try looking for any corrupted file or get rid of files in your internal/external memory that's being scanned for nothing. For examples, try transferring out your pictures/music/videos that you do not use anymore. You should also try to backup your internal/external memory, do a full wipe of both, reinstall the rom and then put back only what you need. By doing so, you will have a fresh start.
[Galaxy S II General] bajee11:
Sorry, been really busy with xxTweaker translation and the new lockscreen I've been working on. Ill put up the screenshots for now if that helps. :)
[Galaxy S II General] JohnBonchie:
Bajee, have a rest for a while. I just 3 days , it seems you've done quite alot dude:) abyss test result can wait:)

SGS II - Hydr0G3N ICS ~ Tapatalked
[Galaxy S II General] Dima1400:
@bajee11

Hello can i use the settings from the Fluxi RC4 for der RC5 ?

Will you also make a new test with the new settings RC5 and post who will give it improved?
[Galaxy S II General] lombyzgz:
Funny!! xD

Enviado desde mi GT-I9100 usando Tapatalk
[Galaxy S II General] nehalem176:
Fluxi ICS XX.01-RC5.1 waiting translated xxtweaker 0.3.5

bajee,

translated xxtweaker 0.3.5 pls...
[Galaxy S II General] FredC94:
Hello,

got the same issue, did you find an answer about webdemon wakelock ?

Funny that google have registered this keywords, only once

http://www.google.com/search?q=webdemon wakelock
[Galaxy S II General] bajee11:
Yes you can use those settings. And yes, I'll do a test when I can, really busy nowadays.

You should get rid of the wakelocks and alarms I put in red. These are avoidable. And the blue one, try looking for it. I don't have knowledge about this kernel wakelock.
[Galaxy S II General] FredC94:
Sorry if this has already been asked, but I can not find the directory where the dump file is of BBS. :confused:
[Galaxy S II General] bajee11:
Press soft key Menu>More>Dump to File. Your file should be in your /sdcard.
[Galaxy S II General] FredC94:
I did not think to look at the root! :o

Thank you bajee
[Galaxy S II General] omarqasim:
Thanks for highlighting the stuff which needs to be fixed. I ll look into it and see how my results improve in the next few days.
[Galaxy S II General] bajee11:
Sorry for the delay guys. Was really busy with xxTweaker these past few days.. As demanded, Abyssplug used this time.

HyDrOG3N 12.05 + Abyss 2.0 Results Up!
[Galaxy S II General] disellusional:
would you still recommend fluxi over abyss? I did not see a bajee rating lol
[Galaxy S II General] gamal001:
Thank you for your report
[Galaxy S II General] demondor:
Hi, I'm using the new fluxi kernel with hydrogenics 12.05 but for some reason the voltage settings seem to be causing my phone to get 'stuck' after a reboot. Any advice on that?
[Galaxy S II General] misterspex:
Same procedure as with every release. People are made ​​hot and then nothing.

Where is v2.0.6?
[Galaxy S II General] c0x91:
https://picasaweb.google.com/103371178242013673805/Android

Hey, I would like to share my results with you. What do you think about it? Obviously it's the first cycle
[Galaxy S II General] nehalem176:
thanks bajee for the translated xxtweaker..really sorry just messed up your PM yesterday.. lesson; patient is virtue ;)
[Galaxy S II General] bajee11:
Good results mate.. Keep it up

Don't worry.. It's all good
[Galaxy S II General] bajee11:
As you guys probably heard, there's no more HyDrOG3NICS. I won't comment on the surrounding circumstances of why the rom will cease to exist because it is not my place to do so. I assure you guys I will keep testing but I'm currently looking for a good alternative rom. I will post as soon as I find the right one for me. :)
[Galaxy S II General] pablo216:
I came to your thread to thank you for all the great support you gave users on hydrog3nics. Your help was essential for many users and you've gained quite a reputation (well deserved).

I'll be looking forward for your ROM decision as I'm sure it will be the right one.

Have a nice day.
[Galaxy S II General] vivmar:
as always, thanks for your work....+

w8 to see your choice....

EDIT:Btw,look at this...it seem good and also is b37
[Galaxy S II General] wonsky21:
SlimICS maybe?
[Galaxy S II General] ram3n:
This is indeed a f*** good idea mate.

A worthy original ROM.

+100 :rolleyes:

Sent via my S2 monster
[Galaxy S II General] shadowblade330:
that one looks interesting, you might want to try RR too. I too am in search for a new ROM as well.
[Galaxy S II General] wonsky21:
Slim and Hydrogen both are (were) my favourites. Now when Hydrogen is gone, only Slim left :D
[Galaxy S II General] vivmar:
not bad....but no AOKP :p

---------- Post added at 07:23 PM ---------- Previous post was at 07:22 PM ----------

i'll try in the next hours for sure...
[Galaxy S II General] c0x91:
Why dont stay on Hydro anyway? I mean, this rom is perfect, at least for me, and I 'm asking to myself why choose to leave this. Sure, the development won't continue but I tried a lot of ROM (sammy and not based) and I think I can say it's hard to do better. This is my thought.
[Galaxy S II General] vivmar:
there's no fun on staying with a old outdated rom...even if is good

just my opinion...
[Galaxy S II General] wonsky21:
And? What's your point?

...or Dragon ICS :D
[Galaxy S II General] vivmar:
i'd like the AOKP's customization....
[Galaxy S II General] wonsky21:
Slim ICS has implemented most usable customizations from AOKP :D
[Galaxy S II General] bajee11:
I'm going to stick with AOKP guys.. Most probably between Resurrection Remix or Hydra. We'l see.. I'm going to flash both today and see what's better for me
[Galaxy S II General] carlz0206:
Try also dragons AKOP b37 or maybe paranoidandroid:)
[Galaxy S II General] hadzrious:
Looking forward for this. I was thinking of giving them a try too :cool:
[Galaxy S II General] wollax:
Hi Bajee, I just wanted to thankyou for all your support within hydro.... you have done a really good work with your tests and all the rest !!!!

hope to "meet" you again somewhere here ......

AOKP for me too .... and I was looking for paranoidandroid cm9 .... some of you can tell us something about it ??? all the others doesn't make me feel comfortable but as some of the other guys already wrote a ROM with no development is something I wouldn't use at all !!!

bye
[Galaxy S II General] spotlight79:
I'm also going to choose between those two. I used Neo's ROMs before AOKP, so I will try Hydra first... Looking forward to see what you're going to choose in the end! ;)
[Galaxy S II General] mrcreativity:
So long and thanks for all the fish.

Sent from my GT-I9100
[Galaxy S II General] bajee11:
It suddenly feels like highschool all over again, and each of us going our seperate ways.. :p
[Galaxy S II General] fedort:
Wow in this thread I just read for the first time that Hydroge3n is stopping? Noooooooooooo :(:(
[Galaxy S II General] wollax:
.... I really would like to be at high school time :eek::eek::eek::eek:

you are right, on the other thread in the last month it has been really nice to share a lot of things !!!!!
[Galaxy S II General] c0x91:
In your opinion, the hydrogen project (that is the one with more pages in his thread) will definitely stop? I cant believe this!

Hope someone releases the source code (cuz isnt 'open source', am I right? :P)
[Galaxy S II General] sohebq:
really shocked to hear about hydro. despite the bugs, i really love that rom and everything was fine. I also want to stay to AOKP roms, but will have to start testing work all over again, really very annoying. I might now sell my sgs2, :(

Sent from s2
[Galaxy S II General] c0x91:
:eek:
[Galaxy S II General] lynx2k50:
Oh come on. this guy wasn't that impressive. Will not miss him. The last time he spoke about some donations he said that he was happy to see a donation because he thought his Rom is getting disliked... What's that?

All his work has nothing to do with developing. Also AOKP doesn't let him started there because there was not enough "own code" in it.

Good bye hydro. You was a perfect zipper.
[Galaxy S II General] awaisuk:
Hey can you suggest what apps you freeze to save even more battery?

Thanks
[Galaxy S II General] sohebq:
whatever was the reason, but hydro was the only rom i kept for so long .the community was really good, many good people including bajee who kept that thread alive. I will miss that

Sent from s2
[Galaxy S II General] lynx2k50:
Yep in this way you are right.
[Galaxy S II General] ram3n:
YOU MAD :D
[Galaxy S II General] beston94:
You've used that picture more than 10 times :D Get some new material lad!!
[Galaxy S II General] ram3n:
:D :D
[Galaxy S II General] grzesdroid:
@bejee11

lockscreen is AOKP/CM9? or just for hydrog3n 12.05?

Wysyłane z mojego GT-I9100 za pomocą Tapatalk 2
[Galaxy S II General] bajee11:
I used HyDrOG3NICS framework.jar and framework-res.apk Technically it should work for most AOKP, but you will lose vibration on unlock, since that's a feature of HyDrOG3NICS and other features your rom implemented.
[Galaxy S II General] shadowblade330:
Tested on Resurrection Remix and it works :D

Vibration does disappear
[Galaxy S II General] bajee11:
I'll make one with vibration when i have time.
[Galaxy S II General] JohnBonchie:
Woke up early in the morning to see if there's any update... Im really sad and disappointed that there will be no more HydrogenICS, damn!! Disappointed... this waa the best rom for me.

Anyways, i would always be following bajee's thread, he is the one who gave me the settings for the best battery life i had on my phone!!

Bajee, when you finally have settled down to a new rom, i know i will be copying you:)

SGS II - Hydr0G3N ICS ~ Tapatalked
[Galaxy S II General] Areg8_6:
on #hydrogenics irc i saw that

Netchip is working @ new AOKP ROM =D

http://irc.netsplit.de/channels/details.php?room=#hydrogenics&net=freenode
[Galaxy S II General] shadowblade330:
cool good news.
[Galaxy S II General] :
Noooooooooooo what happened? Some people just get too greedy hey?

Back to the drawing boards of finding another good ROM.. :S

EDIT: Honestly I'd go with RR with the amount of support on that thread is amazing!
[Galaxy S II General] hadzrious:
Also works on hydra-h2o :thumbup:
[Galaxy S II General] andrei_me:
remix or hydra. are looking good. remix appeares to have themes and hydra does not. well, post anyway, i'm curious on what people will land. no going back to samy roms.
[Galaxy S II General] Tyrol:
Indeed, both look really good. Personally leaning more towards RR myself, the thread has awesome support from GaboWinter (if I get the user name wrong, do correct me). Neo does great support on Hydra as well, but I feel like there's more stuff going on in RR (themes, etc).

Well, no rush to flash a new ROM yet for me. Busier preparing for my trip to Tokyo, Japan. :D

-----------------------

サンソングガラクシS II からタパトクで書いた。
[Galaxy S II General] spotlight79:
Hey! Yesterday I switched to hydra so just to let you know that it has themes. Actually, 3 are pre-installed.
[Galaxy S II General] Howlbeck:
Well it was good as long as it lasted, not going to say anything else, not mine to do so.

I used Slim ICS for a week, thats a truly great ROM but unfortunately not AOKP - very well supported though. I came back to Hydrogenics because I couldnt get SpiritFM to work and that's a no go for me. I guess I will run with CM9 nightlies for a while whilst deciding if I'm going to use HydraH20 or Paranoidandroid (or maybe something else ?) :) Who knows.
[Galaxy S II General] andrei_me:
really good then. form the pics and descrption i missed it. well how is it.? i'm no rush to move sincer i've gotton the best battery life ever with hydro and fluxi.. :D but some impressions would be nice. thanks
[Galaxy S II General] halkoliiteri:
I would recommend RR for next rom for your tests and daily use. Been using it two weeks and it's maybe the best rom I've ever used :)
[Galaxy S II General] andrei_me:
battery life? and do you need to flash gapps as well?
[Galaxy S II General] halkoliiteri:
Battery way better in my case than hydro. I flashed gapps but not sure if it's necessary.
[Galaxy S II General] spotlight79:
I´m really happy with it!

I found no disadvantages compared to hydrogenics, but there are some things that are actually better - gradient is fixed for example. It´s smooth, fast, responsive and stable so far... And I know from the past that Neo always gives great support. Regarding battery life, it´s a bit early to say sth about that, but using Siyah, it seems to be the same as with hydrogenics. It comes with aroma installer, so you can choose the mods you want to install right away. Inverted Gapps are included, but you can choose in Aroma installer if you want the white ones. And btw... not 100% sure, but I think Hydra was the first AOKP that was updated to b37.

So I guess, you should give it a try. I think I found my new home :)
[Galaxy S II General] andrei_me:
sound really good. and i'm thinking that fluxi is a go on this rom. because i still got 34% after 3days and 5h, with normal use. 2h screen time,2h calls, and no games. and this is amazing for me. but i'll get bored soon and i'll flash this most certainly.
[Galaxy S II General] Cilus:
I will stick to HydroG3n :) my battery life is stunning and don't lake performance... only one tweak i wanted on this...when you are called the bottom to be transparent to show the full caller picture ...:( can someone help with this..?
[Galaxy S II General] aceofclubs:
Hydrogenics 1205

Fluxi rc5

Edit: 2000mah battery

//sorry can't post screenshots at the minute.

1 day 6 hrs 22 min

Screen on 4 hrs 56 min

Using your UV settings but set hotplug to dual core mode and sched_mc level to 2

Not sure if placebo but seems more responsive this way.

----------------------

GTI9100

HydrogenICS 12.05

fluxi xx.01_rc5
[Galaxy S II General] theFaizzz:
+1

will also copy Bajee as the rom I use practically set up by bajee :D
[Galaxy S II General] andrei_me:
you mean kernel set up..
[Galaxy S II General] JohnBonchie:
kernel setup + the rom bajee uses :D
[Galaxy S II General] andrei_me:
yeah. hydrogen rom .

anyway, next rom on my list is hydra, looks good, and has aroma installer. only thing i hate is the full wipe and reinstall of the apps.
[Galaxy S II General] c0x91:
What about genuine aokp? I'm using it for 1 day and looks good
[Galaxy S II General] spotlight79:
cool to see you in the hydra thread! ;)

i think you´ll survive the full wipe LOL! that´s what titanium backup is for :D
[Galaxy S II General] bajee11:
Seems like it's a battle between hydra and RR... Hard choice.. :rolleyes:
[Galaxy S II General] theFaizzz:
meant setup by combination of Kernel settings and Rom Bajee uses.
[Galaxy S II General] andrei_me:
yeah. i asked about the different sizes of the rom. no one seems to know. so i chose the 227mb one from the swedem mirror if i'm not mistaken.

i don't u se titanium :)) it messed up once.

and i try not keep stuff on my phone that i could not afford to lose :D

---------- Post added at 02:49 PM ---------- Previous post was at 02:48 PM ----------

well i chose:)) hydra.. not gonna compleatly personalize it. just a test then RR to see what is what.
[Galaxy S II General] vivmar:
i'm waiting RR v2.0 b37 for a better decision....
[Galaxy S II General] Theodhoro:
I was also disappointed with the fall of hydrogenincs and I'm waiting bajee to make his choice for his good advices :)

But I have a question, what is the big difference between CM9 (AOSP) and an AOKP? It seems that CM9 has a very big communauty and very active developers, why don't you go on this one?

And what do you think about omega?
[Galaxy S II General] grzesdroid:
Rr 1.9.1 is very, very good

Wysyłane z mojego GT-I9100 za pomocą Tapatalk 2
[Galaxy S II General] cardozclive:
Why is this rom dead? I had so much expectations with it. I found it to be the best rom and now it no more exist.
[Galaxy S II General] netban:
HyDrOG3NICS is dead, but maybe something else will come along ;)
[Galaxy S II General] andrei_me:
well. i'm not in any possition to comment on what paradox did. but hydro is gone at least for the moment, maybe netchip will make something else. but there are a lot o f good roms, based on AOKP. i chose hydra, pretty good. i loved the aroma instaler.
[Galaxy S II General] yabadabadooo:
What about ParanoidAndroid?

sent from my Galaxy S II
[Galaxy S II General] magarto:
I love Paranoidroid. The only problem is that in tablet mode Swiftkey X does not work

Enviado desde mi GT-I9100 usando Tapatalk 2
[Galaxy S II General] tghandour:
RR is an excellent ROM and Hydra has a good potential to replace Hydrog3n however it really misses Neo support for it. He just appears to announce a new release, answers few questions and disappears till the next release.. :(

For example till few weeks later System Tweaks were not functional although I asked Neo to fix it 3 times through several updates bit in vain :rolleyes:

Hydra thread also misses the excellent support role you Bajee played with full dedication and patience in Hydrog3n thread.. hydra really misses someone like u who for sure will enrich such a poorly supported thread..

Anyway waiting ur decision mate as I m also hesitating between both :)
[Galaxy S II General] rzat:
I've been using Bezke ROM for a while. With fluxxi - dream combo. unfortunately Bezke is based on akop 35 so decided to jump on 37.

Dragon froze twice, once during instal and than during initial setup-that's with full wipe, format system etc. restored Bezke, installed hydra and so far so good, smooth experience. Restored my apps with tb no issues. default kernel seems to be working well so I'll check battery before jumping back to fluxxi. Just my 2 cents
[Galaxy S II General] shadowblade330:
RR is good and stable, but RR has some apps which I don't use. Hydra is also really good it has the hydrogen feel to it and he installer is nice for keeping a lite install. Both work well FLUXI which is good but I am kinda leaning towards hydra but I will have to test them out longer
[Galaxy S II General] Theodhoro:
I've chosen hydra. More clean, more "professional" then RR in my opinion.