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SubjectRe: [PATCH] - Improve drain pages performance on large systems
Date
Jack Steiner <steiner@sgi.com> writes:

> Heavy swapping within a cpuset causes frequent calls to drain_all_pages().

I suspect drain_all_pages should be really made more zone aware in the
first place and only drain what is actually needed (e.g.
work off a zonelist). I was fighting with this for hwpoison too.

That said your patch looks reasonable.

-Andi

--
ak@linux.intel.com -- Speaking for myself only


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