[PATCH][2.6.7-rc3] Single Priority Array CPU Scheduler
From: Peter Williams
Date: Thu Jun 10 2004 - 00:37:04 EST
Peter Williams wrote:
> The single priority array scheduler (SPA) is a patch that simplifies
> the O(1) scheduler while maintaining its good scalability and
> interactive response characteristics. The patch comes as four sub
> patches to simplify perusal of the changes:
An updated version of this scheduler is now available for 2.6.7-rc3 at:
<http://users.bigpond.net.au/Peter-Williams/patch-2_6_7_rc3-SPA-v0.1>
<http://users.bigpond.net.au/Peter-Williams/patch-2_6_7_rc3-SPA_IAB-v0.1>
<http://users.bigpond.net.au/Peter-Williams/patch-2_6_7_rc3-SPA_TPB-v0.1>
<http://users.bigpond.net.au/Peter-Williams/patch-2_6_7_rc3-SPA_TSTATS-v0.1>
These patches should be applied in the order that they are listed.
Also, as promised, the first of these patches has been unified with the
staircase scheduler and a patch that implements the staircase scheduler
on top of the first of the above patches is available at:
<http://users.bigpond.net.au/Peter-Williams/patch-2_6_7_rc3-SPA_STAIRCASE-v0.1>
This scheduler is functionally equivalent to Con Kolivas's v6.4
scheduler except that a promotion feature (that will trigger very
infrequently probably never :-)) has been added. This was added
because, although it is extremely unlikely, starvation is possible with
the staircase scheduler and this feature removes that possibility.
Peter
--
Peter Williams pwil3058@xxxxxxxxxxxxxx
"Learning, n. The kind of ignorance distinguishing the studious."
-- Ambrose Bierce
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