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xen-devel
[Xen-devel] Re: [PATCH 0 of 2] credit2: Reduce excessive cpu migration
Forgot to mention, this patch series (probably) relies on the
poorly-spelled "credit2: Miscelaneous patches" series, and my not apply
cleanly without it.
-George
On 09/12/10 17:55, George Dunlap wrote:
More recent processors have one L2 per core. My plan for the credit2
scheduler invovled having several cores sharing the same runqueue.
I've measured the cost of excessive cross-L2 intra-L3 migrations, and while
they're not excessive, they are measurable. This patch series introduces
some simple heuristics to reduce unnecessary migration.
As in all the Credit2 work, this is a first cut, and I'm sure there are
further improvments.
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