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From: Paul Rubin <no.email@nospam.invalid>
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Subject: Re: Why does the location of PAD move around?
Date: Fri, 07 Apr 2017 20:37:18 -0700
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"HAA" <someone@microsoft.com> writes:
> A round-robin with no active tasks, or a Linux/Windows with no event
> to drive them, means burning CPU.  You're only option in that case is
> to wind down power consumption.

On Linux you'd typically have a select or epoll loop, plus a queue of
scheduled future timeouts that you'd use to create timeouts for select
or epoll.