From: "Stephen C. Tweedie" <sct@redhat.com>
To: "Eric W. Biederman" <ebiederm+eric@ccr.net>
Cc: Rik van Riel <H.H.vanRiel@phys.uu.nl>,
Linux MM <linux-mm@kvack.org>,
Linux Kernel <linux-kernel@vger.rutgers.edu>,
Linus Torvalds <torvalds@transmeta.com>
Subject: Re: [PATCH] VM improvements for 2.1.131
Date: Mon, 7 Dec 1998 17:08:46 GMT [thread overview]
Message-ID: <199812071708.RAA06140@dax.scot.redhat.com> (raw)
In-Reply-To: <m1hfva9g1y.fsf@flinx.ccr.net>
Hi,
On 05 Dec 1998 20:10:01 -0600, ebiederm+eric@ccr.net (Eric W. Biederman)
said:
>>>>>> "RR" == Rik van Riel <H.H.vanRiel@phys.uu.nl> writes:
> RR /* Don't allow too many pending pages in flight.. */
> RR- if (atomic_read(&nr_async_pages) > SWAP_CLUSTER_MAX)
> RR+ if (atomic_read(&nr_async_pages) > pager_daemon.swap_cluster)
> RR wait = 1;
> How will this possibly work if we are using a swapfile
> and we always swap synchronously?
It doesn't make any difference: these lines just put an upper limit on
the amount of asynchronous swapping we can have at any point in time.
If all of our swapping is already synchronous, then the upper limit has
no effect.
--Stephen
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next prev parent reply other threads:[~1998-12-07 17:09 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-12-06 0:34 Rik van Riel
1998-12-06 2:10 ` Eric W. Biederman
1998-12-06 1:59 ` Rik van Riel
1998-12-07 17:08 ` Stephen C. Tweedie [this message]
1998-12-07 10:47 ` Neil Conway
1998-12-07 13:04 ` Rik van Riel
1998-12-07 18:01 ` Stephen C. Tweedie
1998-12-07 22:04 ` Stephen C. Tweedie
1998-12-07 22:51 ` Rik van Riel
1998-12-09 17:43 ` Andrea Arcangeli
1998-12-09 21:05 ` Rik van Riel
1998-12-09 23:15 ` Andrea Arcangeli
1998-12-10 1:10 ` Rik van Riel
1998-12-10 13:52 ` Stephen C. Tweedie
1998-12-10 13:50 ` Stephen C. Tweedie
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