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On a Samsung Vibrant (U.S.A.) with stock v2.2 what are the best settings, profiles, ect. for saving battery? Also please label the specifics like max/min, scaling, and your advanced settings. Thank you...
EDIT: I understand you can't overclock without a customized kernal, but if I recall correctly you can underclock without it. Am I correct?
If you underclock your phone, it might get better battery life, but it perfomance will go down too and will start lagging, i don't recommend it at all.
The vibrant doesn't like profiles with less than 800 Max, it tends to freeze on wake-up. The amount of savings from an 800 MHz screen off profile is almost immeasurable as well. Also, the default conservative governor is the only one that is reliable. Therefore unless you're overclocking to start with, setcpu doesn't do anything for battery life on our phones. Best to just use a UV kernel such as BALI.
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Hey man, what you want is undervolt. Underclock will slow you down, and not make a huge difference. However I undervolt by 75mv through the spectrum and have seen great results.
can't hurt to underclock to 800 though, some kernels are ok at 400 but very laggy.
Vibrant - project v, bali 1.8.6UV
JettyLife said:
Hey man, what you want is undervolt. Underclock will slow you down, and not make a huge difference. However I undervolt by 75mv through the spectrum and have seen great results.
can't hurt to underclock to 800 though, some kernels are ok at 400 but very laggy.
Vibrant - project v, bali 1.8.6UV
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Yes.
Don't underclock. It will make your phone hell.
UNDERVOLT.
thats good.
Ok, I'm posting here because after doing a search, this is the very latest SetCPU thread. Recently, we finally got a worthwhile Gingerbread JVP and several ROM's (Simply Honey 3.8 & Asgard 3.1 JUST AMAZING ROM's) have finally given us some 2.3's we can keep on our phones, well in my opinion anyway.
So, I'm using cmenard's latest Bullet GB Kernel v6.1 and have decided to finally put to use the profiles section on SetCPU. Below is what I'm thinking and would enjoy a friendly conversation of what/if any benefits can be had on Gingerbread and customs Kernels using SetCPU Profiles. I read somewhere that Android is getting much better in regards to battery/performance efficiency, but I noticed a slight fall in battery life on 2.3.4 over 2.2.1 by a few hours.
My Profiles at this time.
Main SetCPU screen
200 min - 1200 max - Conservative? Smartass? Interactive? Any particular Governor worth using other than stock Conservative? - Set on Boot = YES
I'm not quite sure how the priority works on the main screen, I mean let's say I'm at 21% battery life and its time for my battery profile to kick in, but I'm still using the phone for various reasons, wifi calling or benchmarking etc. Will the phone stay at 200-1200 or will it actually use my battery profiles?
Screen Off (Set at 10 minute timeout)
100 - 800 - Conservative - Priority 100
Battery <11%
100 - 400 - Conservative - Priority 75 (Really thinking I should delete this)
Battery <21%
100 - 800 - Conservative - Priority 50
Charging
100 - 800 - Conservative - Priority 25 (Trying to keep the phone cool)
I have read that the Vibrant does not like profiles of 400 or lower when the screen is off, and this must be true as I tried 100-400, 200-400, but they all gave me wake of death until I set the max to 800 (there was no in between a.k.a 500, 600 or 700), so now 100-800 seems to work great for Screen Off. I hate this since when the screen is off the phone does not need to be doing anything other then checking gmail via wifi and notifying me using BLN blinking. Also, I tried to set a profile for Battery temp, but for what ever reason it will NOT give me the save button, so I assume GB now controls that on its own, or cmenard has removed that option from his kernel (or setcpu is borked, lol).
Any tips or concerns with my settings above? Anyone here a guru with SetCPU profiles and can see I'm a noob with profiles? lol
Thanks
SkOrPn
WHICH is the best OC governer for P500 out of these all and WHY...
- interactiveX
- interactive
- smartass
- SavazedZen
- ondemand
rjtchn15 said:
WHICH is the best OC governer for P500 out of these all and WHY...
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http://forum.xda-developers.com/showthread.php?t=1133098 just a few posts below, plus tons of others. Additionally, the question does not make much sense without specifying your usage case (performance vs. battery or whatever)
Hi I have some questions involving SetCPU on my Motorola Atrix. For one, I'd like to know the ideal profile settings people have to maximize their battery life. Also, does the Atrix have scaling governors at all? The scaling sections are blacked out for me. Perhaps if I got a custom kernel which supports them? Any help would be much appreciated.
"Ideal" can be for some and can't for other, so is very difficult but in my case just have one profile an is less 5% of the battery and is 216-456. Governors will be blacked out at least for Edgan and Faux123 is normal, Faux123 is OC by default and Edgan need to use setcpu to kick in
lexx210 said:
Hi I have some questions involving SetCPU on my Motorola Atrix. For one, I'd like to know the ideal profile settings people have to maximize their battery life. Also, does the Atrix have scaling governors at all? The scaling sections are blacked out for me. Perhaps if I got a custom kernel which supports them? Any help would be much appreciated.
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Sent from my MB860 using XDA App
Well I meant the best profiles to save battery like when the screen is off set the cpu max and min to the lowest values. I basically just wanna know what people have found are the best settings for them. And I'm really not sure what you're talking about in the second part of your reply. Are those custom kernels? Also, does that mean there's no way to get scaling on the Atrix? Thanks.
lexx210 said:
Well I meant the best profiles to save battery like when the screen is off set the cpu max and min to the lowest values. I basically just wanna know what people have found are the best settings for them. And I'm really not sure what you're talking about in the second part of your reply. Are those custom kernels? Also, does that mean there's no way to get scaling on the Atrix? Thanks.
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I have 312 and 216 for screen off. I had tried 216 216 like some people do, but couldn't deal with the wake lag. Still have some with 312 but not as much. TBH not sure how much it helps battery but i think it helps.
Thanks, I set that profile. Any other ones people can suggest to help with battery life?
lexx210 said:
Thanks, I set that profile. Any other ones people can suggest to help with battery life?
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I am using Faux123 kernel with CM7 on my Atrix 4G and after a quick look, i've seen that almost 75% of my cpu time was already spent at the lowest possible speed 216 MHz. So only downclocking the maximum 1000 MHz might help with the battery life, i guess, but will the effect on performance be acceptable for dialy use? I bought this phone for a dual core 1 Ghz processor, why should i use it like it is 600 Mhz? In the end it all depends on what and how much are you willing to give up.
Hello guys
I'd like some help on installing the Undervolt for WB's 4.0.3 ROM
I'm on 4.0.3 stock kernel. All I have to do is flash the Undervolt addon and Ill be good or do I need other apps like CPU Master after flashing it?
I know theres a lot about it in the topic but its all untied and confusing
If someone could take some time to explain to me how it works I'll be really thankful.
dnt have wb rom but in general I believe ud update with the file provided n I believe u would need either set cpu or cpu master to be able to adjust the minimum value to the lowest 1 possible
Sent via xda using cyanogenZmod running Enigma v2.3 on Xperia x10
So whats the difference between having just cpu master and setting it to the minimun and doing the same with the UV?
Sent from my X10i using XDA App
Hi,
for undervolting you do not need an additional app.
Ralf
Kat-CeDe said:
Hi,
for undervolting you do not need an additional app.
Ralf
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I want to understand the difference between just setting the CPU speed with an app like CPU master and setting it with undervolt flashed
Could someone please explain?
i flashed the stock kernel first but there was no option to 128mhz also i believe uv works without app...you can also flash the custom kernel and choose the least frQ as i did. i also have enlightment but don't know is that from overclocking to 1113mhz or from the minimum 128mhz or from the undervolt itself??
romasalah said:
i flashed the stock kernel first but there was no option to 128mhz also i believe uv works without app...you can also flash the custom kernel and choose the least frQ as i did. i also have enlightment but don't know is that from overclocking to 1113mhz or from the minimum 128mhz or from the undervolt itself??
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I think overclock/underclock is different from undervolt, no?
Hi,
underclock = reduce frequency = gain life
overclock = increase frequency = loose life = gain speed
undervoltage = reduce voltage for certain frequencies = gain life
With good settings for undervoltage and underclocking you can gain a lot of extra batterie life.
Ralf
Kat-CeDe said:
Hi,
underclock = reduce frequency = gain life
overclock = increase frequency = loose life = gain speed
undervoltage = reduce voltage for certain frequencies = gain life
With good settings for undervoltage and underclocking you can gain a lot of extra batterie life.
Ralf
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nicely said.. I totally got the end of the wrong boat there! lol
Sent via xda using cyanogenZmod running Enigma v2.3 on Xperia x10
Under and overclocking changes the speed at which the cpu works.
Less speed means it doesnt work as hard so saves battery.
More speed means it works harder so needs more power so reduces battery life.
At the different speeds the cpu works at it uses different voltages from the battery, less speed needs less voltage, as the speed increases it pulls more volts from the battery.
The voltages it uses are controlled by the kernel.
The undervolt module changes the default voltages each speed uses so in effect a higher cpu speed can work at a lower voltage so it improves performance at no cost to the battery life.
However, if the new voltages are too low the cpu doesnt have enough power to run so you WLOD.
The UV module (and custom kernels) have been tested on loads of devices and generally are stable, however, reading the threads suggest that some phones are still vulnerable to the occasional WLOD using these modules...
Just try and see what is stable for you...
Just remember
Always backup in case you f*** up!!!
but what causes the enlightment??!!! over or under clock?
romasalah said:
but what causes the enlightment??!!! over or under clock?
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Sir, i think you missunderstood the point of the topic.
The enlightenment which im talking about is learning the beyond the basics of undervolting you device and not a function of the addon
10assaye said:
Under and overclocking changes the speed at which the cpu works.
Less speed means it doesnt work as hard so saves battery.
More speed means it works harder so needs more power so reduces battery life.
At the different speeds the cpu works at it uses different voltages from the battery, less speed needs less voltage, as the speed increases it pulls more volts from the battery.
The voltages it uses are controlled by the kernel.
The undervolt module changes the default voltages each speed uses so in effect a higher cpu speed can work at a lower voltage so it improves performance at no cost to the battery life.
However, if the new voltages are too low the cpu doesnt have enough power to run so you WLOD.
The UV module (and custom kernels) have been tested on loads of devices and generally are stable, however, reading the threads suggest that some phones are still vulnerable to the occasional WLOD using these modules...
Just try and see what is stable for you...
Just remember
Always backup in case you f*** up!!!
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Click to collapse
Thanks, that was very helpful!
Just to complement, which cpu speeds (low/high) are the recommended to undervolt the X10 on WB's rom?
GuilhermeXOT said:
Thanks, that was very helpful!
Just to complement, which cpu speeds (low/high) are the recommended to undervolt the X10 on WB's rom?
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It seems to change from phone to phone because the chips inside are not all exactly the same.
They are tested to conform with stock speeds and voltages but can become unstable when changing these.
Some phones (Luckily mine included) can handle 128 - 1113 Mhz with ony a few (Very rare, about 2 a week) WLOD's while other people say their phones WLOD constantly with any change.
The best way is to apply the mod you want and check.
I seem to remember that the UV and the UC/OC modules are not compatble on WB's ROM, you have to choose what you want.
However, I am running freekernel 4.05 which allows me to use UV and then configure which speeds to run via SetCPU.apk.
If you install a kernel there is no need to apply the UV or OC/UC modules..
Read DooMLoRD's custom kernel thread, he has a lot of good info and useful tips on how to test which is best for your phone.
exactly, wolfbreak also mentioned in his thread about the incompatibility of overclock and undervolt with some devices.
unfortunately i'm at the short list of devices that can't handle both, for users like me he gave the option for stock kernel with optional undervolt, which i'm using now with no problems.
Thx for all the info guys! Now ill try the undervolt
I have one more question: everytime that i flash a update on the ROM i need to reflash Undervolt?
I have been trying for a while to efficiently maximize my battery life with gingerbread roms.
While getting some nice results with roms like the latest cm7 or neutrino i still can't for the life of me figure out why it wont let me underclock my cpu with any program whatsoever (cpu master, setcpu. Cpu tuner. etc etc....)
It seems that while im inside the apps they wont let it go over the set frequency but any time they are running in the background the cpu still spends like 30% of its time at max frequency, even if i limit it to something less, and its driving me crazy.
Even when running the powersave governor which is supposed to keep frequencies low this still doesnt work no matter what rom or kernel or whatever im doing.
Any ideas?
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