Messages in this thread | | | Date | Wed, 24 Jan 2007 11:53:10 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [RFC] Limit the size of the pagecache |
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On Tue, 23 Jan 2007 16:49:55 -0800 (PST) Christoph Lameter <clameter@sgi.com> wrote:
> If we enter reclaim and the number of page cache pages > is too high then we switch off swapping during reclaim > to avoid touching anonymous pages.
In general, I like this (kind of) feature.
> + /* > + * If the page cache is too big then focus on page cache > + * and ignore anonymous pages > + */ > + if (sc->may_swap && zone_page_state(zone, NR_FILE_PAGES) > + > zone->max_pagecache_pages) > + sc->may_swap = 0; > +
How about adding this (kind of) check ?
if (sc->may_swap && zone_page_state(zone, NR_FILE_PAGES) && !(curreht->flags & PF_MEMALLOC)) sc->may_swap = 0;
-Kame
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