Re: [Lse-tech] [PATCH] cpusets - big numa cpu and memory placement

From: Peter Williams
Date: Wed Oct 06 2004 - 19:00:36 EST


Matthew Dobson wrote:
On Tue, 2004-10-05 at 19:08, Paul Jackson wrote:

I don't know that these partitions would necessarily need their own
scheduler, allocator and resource manager, or if we would just make the
current scheduler, allocator and resource manager aware of these
boundaries. In either case, that is an implementation detail not to be
agonized over now.

It's not so much whether they NEED their own scheduler, etc. as whether it should be possible for them to have their own scheduler, etc. With a configurable scheduler (such as ZAPHOD) this could just be a matter of having separate configuration variables for each cpuset (e.g. if a cpuset has been created to contain as bunch of servers there's no need to try and provide good interactive response for its tasks (as none of them will be interactive) so the interactive response mechanism can be turned off in that cpuset leading to better server response and throughput).

Peter
--
Peter Williams pwil3058@xxxxxxxxxxxxxx

"Learning, n. The kind of ignorance distinguishing the studious."
-- Ambrose Bierce
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