suspend on 'idle'
Richard A. Smith
richard at laptop.org
Thu Aug 7 12:52:44 EDT 2008
Mikus Grinbergs wrote:
> would like 'idle' to mean "processor is idle" -- not just "keyboard
> is idle" (of course my keyboard is idle -- I'm waiting for the
> still-ongoing downloads to finish before I type the next command).
Good idle detection is hard. What you are really wanting is "system
idle" which requires a holistic approach rather than just a few subsystems.
For example any device that is doing a large ammount of bus mastered DMA
transactions will have a fairly low CPU usage but the system is
certainly not idle. There are many workloads where our current
We hope to use the cpuidle subsystem + hints from apps to manage this
but theres still a lot of work do me done here.
Richard Smith <richard at laptop.org>
One Laptop Per Child
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