>> Does anybody know what is the minimum expected time for sleep period
>> with the cpuidle ?
By sleep period do you mean sleep time for complete device or only for cpu's? If you want to check for device as a whole, you can see the print in the kernel log. If you want to check programmatically, suspend_devices_and_enter() is the function.

On Fri, Oct 10, 2014 at 4:01 AM, <Valdis.Kletnieks@vt.edu> wrote:

On Thu, 09 Oct 2014 21:28:23 +0300, Ran Shalit said:

> Does anybody know what is the minimum expected time for sleep period
> with the cpuidle ?

Both processor dependent and sleep level dependent. There's a certain
amount of latency induced by the hardware waking up.

Look at /sys/devices/system/cpu/cpu*/cpuidle/state*/latency

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