Hello,
I requesting a overclock and undervolt kernel for our device.
With undervolt (i mean) we can decerase overheating, and incerase battery life.
With it we can undervolt and overclock, that mean with lower voltage higher cpu clock, but i mean phone is good performace, undervolt can help a lot. I triyed undervolt cpu with setCpu but there is not any option, that i mean it need undervolt kernel.. Or something else?
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Yesterday I thought I would test my battery life if I left my clock speed at 806 MHz, It lasted over 24 hours with no real speed decrease... I am requesting that a developer makes a kernel that is underclocked to 806 MHz and undervolted as much as possible so we can see how much battery life we can pull out of this thing.
take intersectRavens 800mv (or 925) kernel and underclock via setcpu?
lower than 800mv won't be possible, even 800mv is too low for me, it uses more battery cause data connections is very unstable. 925 gives better battery life for me.
IR kernel supports conservative governor too.. works great for me.
yeah just use set cpu to underclock the device. all these kernels already have the lowest voltages for each cpu frequency. but once again, the lower the voltage, the lower your signal strength, and if you signal strength gets too low, your phone will boost voltage to the radio to try to increase it and it will end up using more power. this is why many prefer the 925mv kernels as opposed to the 800mv ones.
this is my understanding, please correct me if i am wrong.
nellyspageli said:
yeah just use set cpu to underclock the device. all these kernels already have the lowest voltages for each cpu frequency. but once again, the lower the voltage, the lower your signal strength, and if you signal strength gets too low, your phone will boost voltage to the radio to try to increase it and it will end up using more power. this is why many prefer the 925mv kernels as opposed to the 800mv ones.
this is my understanding, please correct me if i am wrong.
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I wasn't sure, that's why I said lowest possible. So I think I'll just do that, but from what you said I'm now wondering if we can OV the radio's voltage from the kernel to fix the 3g/speed problems...
will it work on froyo? i have CM6alpha1
link to the kernal to use and setCPU settings please (including profiles) much appreciated!
I was just wondering what people get for battery life with miui 1.7.8 and OTB .13 kernel.
Also, what does overclock actually mean? Does it mean that setting the min and max to 1400Mhz in Voltage Control or remain the min to 100 and max to 1400Mhz?
I'm currently on noop, ondemand and min=100Mhz, max=1400Mhz with nothing UV'ed.
Please help me to get better battery life!!!!!!!!
Your CPU by default can do, unmodified, a certain number of commands per second. These commands are measured in Hertz, thus a 1GHz processor does about 1 billionish commands per second. Overclocking means you allow your processor to do more commands in the same time frame. The downside to this, however, is that more electricity is flowing through the CPU, thus draining the battery more. Having a lower clock speed will save some battery life.
That being said, I have kept my CPU clocked at maximum of 1GHz, with the I/O Scheduler set to deadline and the CPU Governor set to smartass, and I'm getting about a day out of my battery, maybe a little less. I have no idea if that's the "optimal" battery saver setting, but it works for me.
I do have a question, though... What do those two settings mean, anyway?
1n73rn37_j3d1 said:
Your CPU by default can do, unmodified, a certain number of commands per second. These commands are measured in Hertz, thus a 1GHz processor does about 1 billionish commands per second. Overclocking means you allow your processor to do more commands in the same time frame. The downside to this, however, is that more electricity is flowing through the CPU, thus draining the battery more. Having a lower clock speed will save some battery life.
That being said, I have kept my CPU clocked at maximum of 1GHz, with the I/O Scheduler set to deadline and the CPU Governor set to smartass, and I'm getting about a day out of my battery, maybe a little less. I have no idea if that's the "optimal" battery saver setting, but it works for me.
I do have a question, though... What do those two settings mean, anyway?
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What do you mean by two settings?
Like, what are I/O Schedulers and CPU Governors? That last question was me hijacking the thread.
Just to let you know ahead of time, I know how to overclock & undervolt
My question:
Should I notice better battery life with 1400MHz @ 1275mV or 1200MHz @ 1275mV?
Even more basic - "With my voltages the same, but clocks higher, will I notice less battery life?"
My thoughts:
Not using more mV than a stock 1200MHz, so I shouldn't notice anymore drain
Should be finishing tasks faster - Saving Battery Life
So I shouldn't be noticing any more drain then stock, but it is faster.I do notice a difference in speed between 1200 & 1400MHz, otherwise I would just use 1200MHz @ my current stable of 1200mV.
Overclocking/Undervolting
You might want to grab SetCPU or Pimp My CPU from the market and memorize some different CPU profiles that would allow you to test and see the results of what you want to do.
can you suggest me the best and good settings for setcpu i want to extend my battery life thank you .
RP19OMG68 said:
can you suggest me the best and good settings for setcpu i want to extend my battery life thank you .
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well..... there are three factors regarding CPU which could prolong batt life..
undervolt
underclock
governor
The kernel also plays a huge role in batt consumption!
First set governor to interactiveX or smartassV2. whatever works better for you.
Set your minimum frequency to 250MHz. It actually consumes LESS batt then 130MHz or 180MHz.
You can slow the CPU down up to 650MHz and have a smooth phone. Depends on settings and optimisations...
And I wouldn't advise using any screen off profiles....
For undervolting, try system tuner on the market.
iONEx said:
well..... there are three factors regarding CPU which could prolong batt life..
undervolt
underclock
governor
The kernel also plays a huge role in batt consumption!
First set governor to interactiveX or smartassV2. whatever works better for you.
Set your minimum frequency to 250MHz. It actually consumes LESS batt then 130MHz or 180MHz.
You can slow the CPU down up to 650MHz and have a smooth phone. Depends on settings and optimisations...
And I wouldn't advise using any screen off profiles....
For undervolting, try system tuner on the market.
Click to expand...
Click to collapse
Man thanks it helps a lot
What is (in your experience) the best kernel for battery life?
I like FireIce kernel, but you have to manually underclock CPU & GPU (2.1GHz and 750 MHz) to achieve cooler temps and longer battery life.