From: Rik van Riel <riel@conectiva.com.br>
To: Andrew Morton <akpm@zip.com.au>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: inactive_dirty list
Date: Fri, 6 Sep 2002 19:22:28 -0300 (BRT) [thread overview]
Message-ID: <Pine.LNX.4.44L.0209061921060.1857-100000@imladris.surriel.com> (raw)
In-Reply-To: <Pine.LNX.4.44L.0209061902120.1857-100000@imladris.surriel.com>
On Fri, 6 Sep 2002, Rik van Riel wrote:
> On Fri, 6 Sep 2002, Andrew Morton wrote:
>
> > hum. I'm trying to find a model where the VM can just ignore
> > dirty|writeback pagecache. We know how many pages are out
> > there, sure. But we don't scan them. Possible?
>
> Owww duh, I see it now.
>
> So basically pages should _only_ go into the inactive_dirty list
> when they are under writeout.
As an aside, we might want to limit the amount of in-flight
data to a sane limit and just go to sleep for a bit if the
VM has far too much data in flight already.
If we need 2 MB of extra free memory, it doesn't make sense
to monopolise the whole IO subsystem by writing out 100 MB
at once ;)
regards,
Rik
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next prev parent reply other threads:[~2002-09-06 22:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-06 20:42 Andrew Morton
2002-09-06 21:03 ` Rik van Riel
2002-09-06 21:40 ` Andrew Morton
2002-09-06 21:49 ` Rik van Riel
2002-09-06 21:58 ` Andrew Morton
2002-09-06 22:04 ` Rik van Riel
2002-09-06 22:19 ` Andrew Morton
2002-09-06 22:23 ` Rik van Riel
2002-09-06 22:48 ` Andrew Morton
2002-09-06 23:03 ` Rik van Riel
2002-09-06 23:34 ` Andrew Morton
2002-09-07 0:00 ` Rik van Riel
2002-09-07 0:29 ` Andrew Morton
2002-09-08 21:21 ` Daniel Phillips
2002-09-06 22:22 ` Rik van Riel [this message]
2002-09-07 2:14 ` Andrew Morton
2002-09-07 2:10 ` Rik van Riel
2002-09-07 5:28 ` Andrew Morton
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