Messages in this thread | | | Date | Fri, 20 Jul 2012 11:34:00 -0700 | From | Tejun Heo <> | Subject | Re: [PATCHSET] workqueue: reimplement CPU hotplug to keep idle workers |
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Hello,
On Fri, Jul 20, 2012 at 08:22:30PM +0200, Peter Zijlstra wrote: > I really think people who use hotplug at high frequencies are on drugs > and doing it wrong.
I don't know. It does make some sense. It's not like we have any other mechanism to keep some processors completely quiesient, which could make a noticeable difference from powersaving POV compared to mostly idle. Rafael, can you please chime in and explain how / where / how freqeuntly / etc CPU hotplug is used for powersaving?
Thanks.
-- tejun
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