From: Andrew Morton <akpm@osdl.org>
To: Benjamin Rutt <rutt.4+news@osu.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: clearing filesystem cache for I/O benchmarks
Date: Mon, 26 Jul 2004 00:25:24 -0700 [thread overview]
Message-ID: <20040726002524.2ade65c3.akpm@osdl.org> (raw)
In-Reply-To: <87vfgeuyf5.fsf@osu.edu>
Benjamin Rutt <rutt.4+news@osu.edu> wrote:
>
> How can I purge all of the kernel's filesystem caches, so I can trust
> that my I/O (read) requests I'm trying to benchmark bypass the kernel
> filesystem cache?
Either delete the benchmark test files or, in 2.6, use
fsync+posix_fadvise(POSIX_FADV_DONTNEED);
next prev parent reply other threads:[~2004-07-26 7:26 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-23 22:54 Benjamin Rutt
2004-07-24 5:21 ` Chris Wedgwood
2004-07-24 5:31 ` Tim Wright
2004-07-26 0:07 ` Benjamin Rutt
2004-07-26 1:40 ` Bernd Eckenfels
2004-07-26 12:47 ` Benjamin Rutt
2004-07-25 8:11 ` Andreas Haumer
2004-07-26 7:25 ` Andrew Morton [this message]
2004-07-26 13:02 ` Benjamin Rutt
2004-07-27 6:40 ` Andrew Morton
2004-07-27 7:16 ` Hans Reiser
2004-07-27 17:31 ` Benjamin Rutt
2004-07-27 18:03 ` Hans Reiser
2004-07-28 12:38 ` Benjamin Rutt
2004-07-28 17:03 ` Hans Reiser
2004-07-28 18:19 ` Benjamin Rutt
2004-07-27 17:25 ` Benjamin Rutt
2004-07-27 20:00 ` Timothy Miller
2004-07-28 12:51 ` Benjamin Rutt
2004-07-29 1:05 ` Nathan Scott
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