From: Mike Galbraith <mikeg@wen-online.de>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Zlatko Calusic <zlatko.calusic@iskon.hr>,
Marcelo Tosatti <marcelo@conectiva.com.br>,
lkml <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org
Subject: Re: Comment on patch to remove nr_async_pages limit
Date: Sat, 9 Jun 2001 08:07:06 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.33.0106090758530.748-100000@mikeg.weiden.de> (raw)
In-Reply-To: <Pine.LNX.4.21.0106090008110.10415-100000@imladris.rielhome.conectiva>
On Sat, 9 Jun 2001, Rik van Riel wrote:
> On 5 Jun 2001, Zlatko Calusic wrote:
> > Marcelo Tosatti <marcelo@conectiva.com.br> writes:
> >
> > [snip]
> > > Exactly. And when we reach a low watermark of memory, we start writting
> > > out the anonymous memory.
> >
> > Hm, my observations are a little bit different. I find that writeouts
> > happen sooner than the moment we reach low watermark, and many times
> > just in time to interact badly with some read I/O workload that made a
> > virtual shortage of memory in the first place.
>
> I have a patch that tries to address this by not reordering
> the inactive list whenever we scan through it. I'll post it
> right now ...
Excellent. I've done some of that (crude but effective) and have had
nice encouraging results. If the dirty list is long enough, this
most definitely improves behavior under heavy load.
-Mike
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next prev parent reply other threads:[~2001-06-09 6:07 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-05 1:04 Marcelo Tosatti
2001-06-05 7:38 ` Mike Galbraith
2001-06-05 6:18 ` Marcelo Tosatti
2001-06-05 10:32 ` Mike Galbraith
2001-06-05 11:42 ` Ed Tomlinson
2001-06-05 16:08 ` Zlatko Calusic
2001-06-05 19:21 ` Benjamin C.R. LaHaise
2001-06-05 21:00 ` Comment on patch to remove nr_async_pages limitA Mike Galbraith
2001-06-05 22:21 ` Daniel Phillips
2001-06-05 16:05 ` Comment on patch to remove nr_async_pages limit Zlatko Calusic
2001-06-09 3:09 ` Rik van Riel
2001-06-09 6:07 ` Mike Galbraith [this message]
2001-06-05 15:57 ` Zlatko Calusic
2001-06-05 15:56 ` Zlatko Calusic
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