CPU Speed OnDemand

[Guest Abnormal1]

Hi,

I have noticed that people use the oc kernels to underclock there cpu speed when the phone is locked etc to save battery life, however I have also read that the default kernel all ready does this and will down clock the cpu to 245Mhz.

So my question is does the standard kernel all ready alter the clock speed and if so why does anyone use setCPU to underclock if this is the case.

Thanks

Abnormal1

[Guest craigcrawford1988]

Hi,

I have noticed that people use the oc kernels to underclock there cpu speed when the phone is locked etc to save battery life, however I have also read that the default kernel all ready does this and will down clock the cpu to 245Mhz.

So my question is does the standard kernel all ready alter the clock speed and if so why does anyone use setCPU to underclock if this is the case.

Thanks

Abnormal1

Yup, the standard kernel automatically throttles back. Just like your PC.

However, using SetCPU allows you to lower those values further, thus saving more power.

Edited July 12, 2010 by craigcrawford1988

[Guest Abnormal1]

Yup, the standard kernel automatically throttles back. Just like your PC.

However, using SetCPU allows you to lower those values further, thus saving more power.

I thought this was the case. Thanks for this.

[Guest senab]

Hi,

I have noticed that people use the oc kernels to underclock there cpu speed when the phone is locked etc to save battery life, however I have also read that the default kernel all ready does this and will down clock the cpu to 245Mhz.

So my question is does the standard kernel all ready alter the clock speed and if so why does anyone use setCPU to underclock if this is the case.

I'm guessing you mean undervolt rather than underclock, as yes the standard kernel (and custom one's) use cpufreqd to automatically throttle the CPU. What the custom kernels do that the standard ones don't is overclock the CPU (i.e. pushing the CPU harder than HTC want you to) and undervolt the CPU (provide less voltage to the CPU to save power).

Edited July 14, 2010 by senab

[Guest Abnormal1]

Nope, meant underclock. I had seen several comments on various forums about people asking for oc kernels so that they can downclock the cpu using SetCPU when in standby to save on battery life. This is why I was a little confused and asked this question.

[Guest Aleksander L. Toppe]

The latest SetCPU has support for underclocking regular HTC kernels by disabling HTCs Perflock.

Pull up the menu in SetCPU and select disable to test it.

I have used this for about a week without any issues :angry:

[Guest Abnormal1]

The latest SetCPU has support for underclocking regular HTC kernels by disabling HTCs Perflock.

Pull up the menu in SetCPU and select disable to test it.

I have used this for about a week without any issues :angry:

What does this do that the default kernel does not?

[Guest trstn]

I don't suppose anyone has a recommended settings file for setCPU and Desire?