From: Andrew Morton <akpm@linux-foundation.org>
To: Rik van Riel <riel@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: userspace pagecache management tool
Date: Sat, 3 Mar 2007 14:52:21 -0800 [thread overview]
Message-ID: <20070303145221.2a42cc0f.akpm@linux-foundation.org> (raw)
In-Reply-To: <45E9F5DA.2070708@redhat.com>
On Sat, 03 Mar 2007 17:25:30 -0500 Rik van Riel <riel@redhat.com> wrote:
> backup program
A suitable policy for a backup program would probably be to invalidate any
output file(s) and to invalidate those pages of the input files which were
not in cache when the backup program first opened those files. That way
the backup program will have no effect on the cache state, except for the
race situation where someone read an uncached file while the backup program
was reading from it too.
This can be added in an hour or two with no kernel changes (use mincore).
next prev parent reply other threads:[~2007-03-03 22:52 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-03 20:29 userspace pagecache management tool Andrew Morton
2007-03-03 20:40 ` Rik van Riel
2007-03-03 21:12 ` Andrew Morton
2007-03-03 21:30 ` Rik van Riel
2007-03-03 21:41 ` bert hubert
2007-03-03 22:14 ` Andrew Morton
2007-03-03 22:19 ` Rik van Riel
2007-03-03 22:26 ` Andrew Morton
2007-03-03 22:28 ` Rik van Riel
2007-03-03 22:38 ` Andrew Morton
2007-03-03 22:56 ` Erik Andersen
2007-03-03 23:01 ` bert hubert
2007-03-03 23:45 ` Andrew Morton
2007-03-06 12:10 ` Pádraig Brady
2007-03-06 21:40 ` Andrew Morton
2007-03-06 21:44 ` Rik van Riel
2007-03-07 11:39 ` Pádraig Brady
2007-03-07 18:50 ` Andrew Morton
2007-03-08 7:59 ` Vaidyanathan Srinivasan
2007-03-08 8:12 ` Andrew Morton
2007-03-03 22:07 ` Andrew Morton
2007-03-03 22:25 ` Rik van Riel
2007-03-03 22:37 ` Andrew Morton
2007-03-03 22:52 ` Andrew Morton [this message]
2007-03-04 0:01 ` Rik van Riel
2007-03-04 1:02 ` Andrew Morton
2007-03-04 1:23 ` Rik van Riel
2007-03-04 1:49 ` Andrew Morton
2007-03-04 1:56 ` Rik van Riel
2007-03-04 12:07 ` Andrew Morton
2007-03-04 14:35 ` Peter Zijlstra
2007-03-04 16:01 ` Rik van Riel
2007-03-03 22:58 ` Ray Lee
2007-03-03 23:34 ` Andrew Morton
2007-03-04 1:02 ` Ray Lee
2007-03-04 1:21 ` Andrew Morton
2007-03-04 0:14 ` Eric St-Laurent
2007-03-04 1:10 ` Andrew Morton
2007-03-04 1:39 ` Rik van Riel
2007-03-04 1:16 ` Lee Revell
2007-03-04 1:39 ` Andrew Morton
2007-03-04 2:35 ` Lee Revell
2007-03-04 4:35 ` Andrew Morton
2007-03-05 11:02 ` Pádraig Brady
2007-03-05 11:12 ` Andrew Morton
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