[APP][24Nov] - 4.9 - SGS1+2] Voltage Control - control OC/UV for OC kernels

[xan]

I take no responsibility for ANY damage / data loss may occur. Use this at your own risk. Beta quality software!/Alpha quality features!


The news:

4.9 - THIS IS HIGLY TEST RELEASE
+ Profiles support
+ Bus frequency switching for Siyah kernel
+ Widget with profile switcher and app launcher (passive!)
+ Recovery instructions: lets you place CWM flashable boot settings deleter
+ CPU history: now can reset and refresh graphs
+ Root detection improvement (I hope...)





Voltage Control Extreme unlock Key on Android Market!

For now features exclusive to Extreme version are:
+ More than two profiles
+ CPU History page
+ overvolting capability (max +50mV, 1500mV absolute maximum)
+ increased uv range (max -250mV)

Sources available, project on google code:

http://code.google.com/p/voltage-control/


Look for kernels with this label:
Kernel developers who added VC support please show this image in your topic

Uploaded with ImageShack.us





Features:
- minimum/maximum CPU frequency choosing
- selecting IO scheduler
- selecting CPU governor
- changing voltage per frequency
- chosing which frequencies should be used and which shouldnt
- saving settings to be automatically applied at boot (init.d script)
- saving/loading a OC profile
- well designed and highly optimised UI (I hope..)
- robust kernel detection, support of not-so-well-working kernels
- Siyah kernel interfaces (Charging current and GPU OC/UV)
- device info page
- (extreme) CPU usage history page

About donations:

This software is available free of charge.
It cooperates with OC kernel by raspdeep.
It uses some code from: MarketEnabler (Fool your market to make all apps visible!)
If you find this software useful, please consider funding a beer and pizza. There is a "Donate to me" link just over my avatar.

Donator list:

nitr8
kalpik
laststufo
glitterballs
screwyluie
Gembol
Coreym

Thanks!



How to?
Generally idea is simple: make changes to one tab and hit apply. If any changes have been made apply/discard buttons appear on bottom.
The first tab, "General" allows to change Scheduler,Governor/min and max frequencies.
Make changes and click apply
So, you want to pick a maximum/minimum frequency?
Just chose from slider and hit apply.
Governor/scheduler can be choosen by picking from the list, then hitting apply.


You can always discard changes before applying if you want start from loaded settings.

The "Advanced" tab has sliders to control undervolting settings and green/red icons, representing enabled/disabled state.
(green = enabled, red = disabled)
Pick your settings and hit apply, or discard and start over.


Profile support:
If you want to save as boot or as profile, you need to make adjustments and on "General" or "Advanced" tab and then apply them where applicable.
To save as boot -> press menu key, then select "Save as boot settings".
To save as profile -> press menu key, then select "Save profile".
Boot settings are automatically loaded on every device boot.
Profile settings can be loaded by pressing menu -> "Load profile"

Both "boot" and "profile" settings can be deleted from menu.
RECOVERY
If Your device freezes after boot because of too agressive boot settings:
Flash Voltage Scheduler Remover by user Coreym, via CWM. Don't forget to press thanks under one of his posts!



FAQ:
Q: Extreme version?
Yes, I wanted to give some extras for people that support my work.
For now features exclusive to Extreme version are:
+ overvolting capability (max +50mV, 1500mV absolute maximum)
+ increased uv range (max -250mV)

Q: What is it?
Its voltage control app for undervolt and overclocking kernels providing sysfs interface, designed and implemented by raspdeep (thank You!) It is being tested on his kernel releases and I can guarantee (kind of) its functionality on those kernels.
The idea of the app is to keep all simple as possible, not adding any startup services and reusing existing solutions (such as init.d support).


Q: What does it mean to undevolt, and what is overclocking?
Read more in "OC / UV 101" section That is a detailed(sort of) explanation what UV/OC means.
Check this great overclocking/undervolting guide by shaolin95 (thanks!) and discussion topic!

Prerequisites:
-root (superuser + su)
-busybox
-OC kernel supporting either UVLF and UVHF (Version 1.61) or UV_mV_table (1.97 and up)
-init.d scripts support for apply on boot

3.0.1 - OLD version;

 

[Lio78]

Thank's, this app is awesome.

Now i've Super Optimized JPM-JP6 Kernel v.3.7 and this run with -50 Low -25 High scheduler anticipatory (Lagfix NO RFS overkill JFS Bind=false)
and all works great.

 

[joedon3]

Thanks for this app! it's a nice tool. Once feature request for the OP would be an explanation of the different schedulers. I'm using noop after some research.

Edit: I guess it would be an OP request, not a feature request.

 

[crazililazn]

curious, may i ask what is the difference between noop, anticipatory, deadline, and cfq?

 

[loco-]

Just search it on wikipedia.
It seems noop is the best with flash memory.

Sent from my GT-I9000 using XDA App


E: doesnt work for me anymore. Blank screen only.
Just reflashed jpo yesterday and oc kernel 2.1 by rasp.

 

[oswade]

Doesn't seem to work with YA-OK kernel (which supposably implements rasdeeps oc 1.1). Black screen same as above poster.
Might be a kernel problem, so I'll wait for the next version, hopefully it works

 

[raspdeep]

Doesn't seem to work with YA-OK kernel (which supposably implements rasdeeps oc 1.1). Black screen same as above poster.
Might be a kernel problem, so I'll wait for the next version, hopefully it works

YA-OK is not using my UV code hence this app wont work. he hardcoded the UV values if im not wrong

 

[shrooms90]

Thank's, this app is awesome.

Now i've Super Optimized JPM-JP6 Kernel v.3.7 and this run with -50 Low -25 High scheduler anticipatory (Lagfix NO RFS overkill JFS Bind=false)
and all works great.

I use the same kernel and same settings but all i get when i open this app is a black screen and the su popup. Is there something else i have to setup so that app will work?
May it have something to do with setcpu?

 

[ggonzalez7777]

An recommendations for stable UV on 1200MHz OC kernel? Specifically for the 1000-1200MHz range? I have the 100-800MHz range at -50mV.

 

[ashwinds]

An recommendations for stable UV on 1200MHz OC kernel? Specifically for the 1000-1200MHz range? I have the 100-800MHz range at -50mV.

I've been on 0, 25, 50, 75, 100, 100 on 1.2 Ghz - its been stable for "normal" use - but i dont stress it out with video/ 3D etc - so YMMV.

 

[xan]

New version posted, first post updated.

 

[raspdeep]

nice bro!
one suggestion: add checks so it wont show blank screen if the values are not read properly or folders/file not found and display messages

sometimes peeps run a wrong kernel and expect your app to work

 

[MikeyMike01]

Which version is better for SetiroN's 1.2 kernel?

 

[xan]

Will look into it, most of checks are there, but I might have forgotten about some

Which version is better for SetiroN's 1.2 kernel?

As of today: 1.61. Both use old UVLF and UVHF implementation.


0 50 100 75 75 125 seems to be working here

 

[MikeyMike01]

Alright... I wont upgrade then.

Sent from my SAMSUNG-SGH-I897 using XDA App

 

[xan]

Cant get over this "blank screen issue". I've *almost* isolated the issue, it lies in these lines:

DataInputStream osRes = new DataInputStream(process.getInputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(osRes));
res.add(br.readLine() + "");
br.close();

Cat command returns under 64 chars when file is found, when it isnt output is >64 chars.
Thats the reason for block, somewhere in these lines.

 

[bts0uth]

Cant get over this "blank screen issue". I've *almost* isolated the issue, it lies in these lines:


Cat command returns under 64 chars when file is found, when it isnt output is >64 chars.
Thats the reason for block, somewhere in these lines.

Glad you know of this issue, on my captivate the older version works fine but when upgrading to the new one it is stuck on the black screen forever. It says SU permission granted but just stays on the black screen. I tried uninstalling the old first, rebooting, then installing and also just overwriting the old with new. Nothing but black.

Good luck on the fix, this is a very handy app

 

[arffer]

Just search it on wikipedia.
It seems noop is the best with flash memory.

I agree, here are a couple of comments that convinced me:

You want to use noop scheduler on devices where there are no seeking penalty, such as flash drives. That's why USB stick wants noop. Unfortunately, harddisks are very mechanial beasts and their performance is highly controlled by their seeking abilities. All these schedulers above are really trying to figure out how to extract maximum performance off the harddisk without causing bad behaviour in other cases.

noop is often the best choice for memory-backed block devices (e.g. ramdisks) and other non-rotational media (flash) where trying to reschedule I/O is a waste of resources.

http://www.linuxhowtos.org/System/iosched.htm
http://stackoverflow.com/questions/1...-i-o-scheduler

E: doesnt work for me anymore. Blank screen only.
Just reflashed jpo yesterday and oc kernel 2.1 by rasp.

When I installed the new version 1.97beta, it too sat at a black screen for an unusually long time, then after almost a minute, the supperroot permission screen poped up, I granted it root rights, and then voltage control came up fine.

 

[xan]

Hm, read first post.

 

[arffer]

Hm, read first post.

Umm, what post is this comment directed to?
Unclear what topic, and what in the first post we are looking for?