Is there a guide somewhere that explains how this works?? ide like to start experamenting wiith voltage control.. i always used set cpu.. but im clueless on VC
Orb has a mini guide which voltages equal what speeds. Other then that google it.
Sent from my SCH-I500 using XDA Premium App
i have googled it.. and ive searched the forums.. nothing makes sense
Voltage Control gives you the choice to lower the voltage of any set frequency by increments of 25. Not only does this save battery, but it also decreases heat. However, it is important to note that there are some voltages that your phone may freeze at. In testing voltages, hit 'Apply' in the menu, and when you think its stable enough (if your phone doesn't freeze and such after a long while) hit 'Apply after boot' or something like that in the menu.
Sent from my Fascinate with CM7 Gingerbread
Related
its a paid app so therefore i will not post any links. but there is some info about using it on the galaxy s devices and how we should avoid some settings and use others to dodge the bugs...
copy/pasted
Description:
SetCPU is a tool for changing the CPU settings (capable of overclock and underclock) on a rooted Motorola Droid, Nexus One, G1, G2, Samsung Galaxy S, or one of many other devices to improve performance or save battery.
SetCPU also allows you to set up profiles to change the CPU speed under certain conditions, such as when the phone is asleep or charging, when the battery level drops below a certain point, or when the phone's temperature is too high. See the screenshots for examples of how you might set up profiles.
SetCPU's wide feature set make it useful to beginners and enthusiasts alike. Accelerate your processor to unleash your phone's multitasking potential, or dial your CPU's speed down to save battery.
Have an HTC Sense device with a stock ROM or kernel? If you are having trouble getting your settings to "stick," press Menu > Disable Perflock. You still have to be rooted.
Galaxy S devices: ondemand scaling is recommended. There are issues with Galaxy S kernels that may result in crashes if conservative scaling governor is used, or if the sleep profile "max" value is set too low. Please do not set the sleep profile too low, and avoid using conservative scaling.
Requirements:
all Android versions
Recent changes:
2.1.0
- Significant UI and user experience revamp, including a new background for the widget, and new notification icons
- Added a quick priority swap button to the profile lists
- Significantly improved the reliability of autodetect on certain kernels
- Numerous bug fixes and crash fixes
Click to expand...
Click to collapse
I understand it's a paid app in the market. But if you're an XDA member you just go here:
http://forum.xda-developers.com/showthread.php?t=505419
It's not a secret...
Funny, the previous version of SetCPU specifically told Galaxy S users to use conservative scaling and that ondemand would cause crashes.
Now they're saying the reverse.
Edit: Well, I switched it to ondemand as the app dev suggested and the phone turned itself off a few minutes later...
Are we suppose to flash it thru cwr?
Edit: nm I got it.
Sent from my SGH-T959 using XDA App
Argh, ever since I installed this (even after uninstalling it) my phone keeps freezing randomly while asleep!
synaesthetic said:
Argh, ever since I installed this (even after uninstalling it) my phone keeps freezing randomly while asleep!
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Do you have a profile for screen turn off? If you do disable it because the phone itself lowers the cpu while at sleep.
Sent from my SGH-T959 using XDA App
I have no profiles set. I tried doing the sleep profile but it caused some annoying lag when the phone was waking from sleep.
On demand profile settings do not work, my phone has crashed 2 times. SetCpu just doesn't work I guess.
Using Nero V 3 and set CPU isn't doing anything...max setting is set to 1000.
How did you guys get it to work and what are your settings?
Sent from my Galaxy S via XDA App
Those of us using SetCPU are using overclocking kernels. Some folks might be using DOW, but I am using JAC XMOD because I'm still on Eclair as all the 2.2 ROMs annoy me currently.
(At least until I get my Bionix Blackout for Nero v3 theme finished!)
I have see a couple of people talk about their screen off / on call script, wherin clocks are limited to a different (lower) max freq when in a screen off / voice call state.
I did some searching and really couldnt come up with anything, if anyone can point me in the right direction that would be awesome.
Thanks!
Nd4
no one ?
Use System Tuner from market
SetCPU is an application that uses "Profiles" (Not the CM ones) so that each profile can be set to a different CPU governor and frequency. This way you can set a screen off or a high temperature profile to use a lower frequency. Fortunately, SmartassV2 has a very good frequency management so you really don't need SetCPU if you are using it.
i swear i have seen something like an init.d script that does what im asking... id much rather not have another app running in the background.
Ianis G. Vasilev said:
Fortunately, SmartassV2 has a very good frequency management so you really don't need SetCPU if you are using it.
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1% battery drain in 4 hours... minimal screen off frequency... higher frequency only if requested by kernel. I bet your script does only the minimal screen off frequency.
You can do that in tasker app. Its paid app but you can grab a beta trial from their site.
ok... lets try and rephrase this question.
i DO NOT WANT AN APP THAT HAS TO ALWAYS RUN.
i want a scrip that will detect when the phone is in voice call state and limit the phone to a frequency of my choice.
Hi guys i have a tiny problem i need clarifying please.
Before anyone says anything i already asked this question and no one seemed to be able to answer it to me. So here it goes.
My question is can we combine the two. What i mean is use Voltage Control to set cpu Voltages and use No Frills to adjust Cpu clock speeds. Voltage Control on my latest rom that i am on Hyperdroid latest version does not save my overclocking and reverts back to stock frequencies 1200Mhz-200Mhz even after i save it on boot. I leave it to reboot for a few minutes till the phone settles and go to check it and governor and i/o schedulers are saved and my voltages also but the only thing that reverts back is the cpu clock frequencies. When using No -Frills though it saves my overclocking.
So my question can i use one app to overclock and the other to undervolt and use them both at the same time?
I know stupid question and i am pretty sure that i know the answer already but if i can get a few opinions regarding the matter i would appreciate it..Also why on the latest firmware it reverts back to stock frequencies even when we save it on Voltage Control is it a bug or something and does anyone if it will get fixed as i really like that app since it does everything i need it to.
Thanks again
you can use both, but I don't see why, VC has also CPU sliders so you can set both parameters from one app
maranello69 said:
you can use both, but I don't see why, VC has also CPU sliders so you can set both parameters from one app
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Yes i know that. But see the whole point of asking this question is that Voltage Control reverts my frequencies back to stock..So say i try to set my cpu clock frequencies to 1600max-200min and then save it and set on boot once i reboot my phone it reverts it back to stock frequencies...Hence why i am currently using only No frills at the moment till this issue is fixed...And hence why i was wondering if i can undervolt with one app and overclock with the other
I am starting to believe that the ICS kernel scales properly although some people may claim it only scales from min to max.
I noticed on the stock GB kernel, the exact same thing happens when trying to use CPU controlling apps such as setcpu. However, for BOTH GB and ICS without using CPU controlling app, I can see the in between frequencies being used. When I try adjusting the slider THEN it starts the freaking out in terms of min/max. (Rom toolbox)
I even notice the battery life worsen tremendously when trying to use setcpu, antutu, etc on STOCK frequencies. Perhaps it has to do with people trying to use CPU apps on a kernel with the perflock enabled?
With the absence of a CPU controlling app on ICS , my battery can last the SAME (not worse, for sure) as it on GB.
Perhaps this can help those who complain about bad battery life on ICS
Sent from my ADR6425LVW using XDA
You don't need to wonder anymore! Its a function built into HTC kernels called "perflock" and its function is to continually reset the values for the min and max frequencies in order to prevent other applications such as setCPU from taking control over the CPU frequencies.
I've been using SEbastianFM's ICS OC kernel with setCPU. You are correct, that it does scale properly even though the min/max frequencies hop around. If you take notice of the current frequency, its usually appropriate for the current load level.
Furthermore, if use setCPU profiles to control the CPU speed, I've noticed it prevents the kernel from periodically reverting back to its default speed and governor settings. setCPU occasionally crashes (FC's) about once a day on me, but since I have the widget on my homescreen I notice it starts right back up again within a second or two and starts controlling the CPU speed again.
Hi all
Here are a few tips i would like to share wid u all. These tips will help u extract the maximum juice out of your xperias
Starting wid the simplest one
TIP NO 1 - ENABLE EXTENDED STANDBY MODE IN POWER SETTINGS
If u are on stock ics rom , go to settings, power management and check extended standby mode.
yes do it, this doesn't affects battery drain but enhance the standby time .
This helps to switch off wifi and data traffic when the phone screen is switched off for sometime.
Basic but most useful.
When this is enabled , u dun need apps like Juice defender or DS battery saver
TIP NO. 2 - DO NOT USE ANY APP KILLERS OR TASK MANAGERS
Most of us use task manager to kill apps running the background regularly.
But we may notice that most of the apps killed by task managers get restarted by themselves.
Thus all these app killers continue to drain battery and do the same thing all around,
These app killers will also make your phone laggy to some extent because of poor ram management
TIP NO. 3 - UNDERCLOCK
If u use your xperia only for basic purposes such as messaging and calls then there is no problem in underclocking.
800Mhz would be fine wid minimum or no performance glitches.
This not only relives strain on cpu but saves battery.
I myself have underclocked this and belive me 800mhz does not affects the performace of most of the games(if u play)
TIP NO. 4 - USE GOVERNORS
There is no defination for governors but u can say these are the engines that control the cpu frequency time to time
There are several governors present most commonly used being ondemandx , conservative and powersave.
1: OnDemand Governor:
This governor has a hair trigger for boosting clockspeed to the maximum speed set by the user. If the CPU load placed by the user abates, the OnDemand governor will slowly step back down through the kernel's frequency steppings until it settles at the lowest possible frequency, or the user executes another task to demand a ramp.
2: Performance Governor:
This locks the phone's CPU at maximum frequency. While this may sound like an ugly idea, there is growing evidence to suggest that running a phone at its maximum frequency at all times will allow a faster race-to-idle.
3: Powersave Governor:
The opposite of the Performance governor, the Powersave governor locks the CPU frequency at the lowest frequency set by the user.
4: Conservative:
A slower Ondemand which scales up slowly to save battery. The conservative governor is based on the ondemand governor. It functions like the Ondemand governor by dynamically adjusting frequencies based on processor utilization. However, the conservative governor increases and decreases CPU speed more gradually.
go to this page to know more about governors
http://androidforums.com/xperia-mini-all-things-root/513426-android-cpu-governors-explained.html
For setting up governors (if installed) and underclocking use a free app like Antutu Cpu Master (https://play.google.com/store/apps/details?id=com.antutu.CpuMasterFree&hl=en )
here are the governors for Xperia U only
http://forum.xda-developers.com/showthread.php?t=1934749&highlight=governor ( thanks to AnDyX )
TIP NO. 5 - DON'T INSTALL APPS UNNECESSARILY
This does not needs an explanation. Just remember that when apps run in background , they consume battery. More the number of unnecessary apps running, the more faster is the battery drain.
Keep only those apps which u use frequently and if u are a rooted user, delete all bloatwares, FREEZE GMAPS AND TIMESCAPE IF U DUN USE IT.
TIP NO. 6 - CHOOSE NETWORK MODE AS PER YOUR NEED
Whether you are using WCDMA or GSM network or WCDMA/GSM , choose it as per your need.
If u are on the internet only for surfing then use GSM mode and switch to WCDMA only if u need to download.
This as per my usage has the greatest impact on battery life.
to select network mode , go to settings>more>mobile networks>network mode
While surfing only (xda ) i use opera mini app wid GSM mode enabled and its very fast .
TIP NO. 7 -SHUTDOWN ONE OF THE CORES USING AN APP "XCORE"
An app by xda member blievenhack can switch one of the 2 cores off thus saving battery
Thanks to blievanhack for app and jonathan for letting me know
Here is the post link for xperia xcore
http://forum.xda-developers.com/showthread.php?t=2057314
P.S. - charging your battery only when it is about to get exhausted belongs to old school now. Charge whenever u can charge
NONE OF THESE TIPS REQUIRES SOMETHING SPECIAL OR TECHNICAL TRY THEM AND U WILL DEFINATELY FEEL THE DIFFERENCE
I hope you like my guide, its not copy pasted , its not stolen from someone, its purely my experience.
If u find any discrepancy plz let me know.
Feel free to share your tips here and discuss your experience
Set refresh-time of app (e.g weather and news apps) to an reasonable value.
It does not make sence to update a weather widget every 5 minutes
You could also use xcore xperia. Most of the time you don't need that second core.
Sent from my xperia p using xda app-developers app
Offtopic
Jonathan_M said:
You could also use xcore xperia. Most of the time you don't need that second core.
Sent from my xperia p using xda app-developers app
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And you don't lose your connection? Hotplug-Govenor does the same and wenn you enable it u get network drop on SXP
Jonathan_M said:
You could also use xcore xperia. Most of the time you don't need that second core.
Sent from my xperia p using xda app-developers app
Click to expand...
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Will add it to op
Thanks
_nafets_ said:
Offtopic
And you don't lose your connection? Hotplug-Govenor does the same and wenn you enable it u get network drop on SXP
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I haven't noticed any drawback aside from a slight lag in cpu hungry apps. Network continues to work just fine on my p.
a good guide for all..........
Settings>Devs Options>BG process limit>2 or 3
This will use less ram and hopefully increase battery
:beer:
thanks for the guide. .
Extended Standby is good but breaks apps like Cerberus or any other internet based tracking system.
Re: {tips} [save battery] {all xperias}
I think our nxt series already has d hotplugging logic so wats d point in using xcore..
I dont intend to demotivate d developer bt I didnt experience any noticable change in battery wid xcore..
And imo if we jst use a suitable governor we can save significant amount of battery..
Plz correct me if Im wrong anywhere Im still a newbie here..
Sent from my ST25i using xda app
Hi guys! Used to have my phone had problems with the transition into deep sleep mode. I often tune but it often does not work, or bring a temporary result. I will advise you to use the program Deep Sleep Battery Saver Pro. When I started using this program , I felt the result. Phone began to sleep well. Saving battery was palpable.
Well, should be interesting to tell us what improvement you made with those settings.