From: Rik van Riel <riel@conectiva.com.br>
To: Andrew Morton <akpm@zip.com.au>
Cc: Benjamin LaHaise <bcrl@redhat.com>,
William Lee Irwin III <wli@holomorphy.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: throttling dirtiers
Date: Wed, 31 Jul 2002 19:32:13 -0300 (BRT) [thread overview]
Message-ID: <Pine.LNX.4.44L.0207311931150.23404-100000@imladris.surriel.com> (raw)
In-Reply-To: <3D48639C.E0EF9B71@zip.com.au>
On Wed, 31 Jul 2002, Andrew Morton wrote:
> > The most probable reason for the stalls is the fact that
> > page_launder (like shrink_cache) will try to write out
> > the complete inactive list if it's almost full of dirty
> > pages, so the system will still be stuck in __get_request_wait
> > seconds after the first few megabytes of the paged out
> > inactive pages have been cleaned already.
>
> I doubt if it's that, although it might be.
>
> It happens just during a kernel build, 768M of RAM. And/or
> during big CVS operations. Possibly it's due to ext3 checkpointing.
Indeed, my scenario above is unlikely to be the reason with
these workloads.
However, I have noticed the problem with fillmem, or just
when the system has the sudden urge to swapout a large
process ;)
regards,
Rik
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next prev parent reply other threads:[~2002-07-31 22:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-31 8:26 Andrew Morton
2002-07-31 20:06 ` William Lee Irwin III
2002-07-31 20:23 ` Benjamin LaHaise
2002-07-31 20:26 ` Rik van Riel
2002-07-31 20:59 ` William Lee Irwin III
2002-07-31 21:02 ` Andrew Morton
2002-07-31 21:14 ` Benjamin LaHaise
2002-07-31 21:25 ` Rik van Riel
2002-07-31 21:32 ` Andrew Morton
2002-07-31 21:55 ` Rik van Riel
2002-07-31 22:24 ` Andrew Morton
2002-07-31 22:32 ` Rik van Riel [this message]
2002-07-31 21:28 ` Andrew Morton
2002-07-31 21:35 ` Rik van Riel
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