Re: [PATCH] - Improve drain pages performance on large systems

[Andi Kleen]

Jack Steiner <steiner@xxxxxxx> 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@xxxxxxxxxxxxxxx -- Speaking for myself only
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