Re: [PATCH 09/10] mm: vmscan: Check if kswapd should writepage onceper priority

From: Mel Gorman
Date: Thu Mar 21 2013 - 14:07:44 EST

On Thu, Mar 21, 2013 at 05:58:37PM +0100, Michal Hocko wrote:
> On Sun 17-03-13 13:04:15, Mel Gorman wrote:
> > Currently kswapd checks if it should start writepage as it shrinks
> > each zone without taking into consideration if the zone is balanced or
> > not. This is not wrong as such but it does not make much sense either.
> > This patch checks once per priority if kswapd should be writing pages.
> Except it is not once per priority strictly speaking... It doesn't make
> any difference though.

Whoops, at one point during development it really was once per priority
which was always raised. I reworded it to "once per pgdat scan".


Mel Gorman
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