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RE: [coyotos-dev] Scheduler design Valerio Bellizzomi Sun Aug 13 16:59:43 2006

On 23/03/2006, at 20.00, Jonathan S. Shapiro wrote:

>On Wed, 2006-03-22 at 11:17 +0100, Valerio Bellizzomi wrote:
>> Ok, so there should be a means to dedicate (at runtime) one CPU to a
>> non-preempted process. That is, one process on one CPU gets an infinite
>> time slice.

>Why should such an option exist?

Primarily for scientific programs where you want to use every single cycle,
and for urgent long-running system diagnostics, the advantage could be
spending less time in context switches.
It could be also a very long time slice, not infinite. Depending on the
situation it may be acceptable to be preempted once in a while.


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