From: "Ken Hirsch" <kenhirsch@myself.com>
To: "Anton Altaparmakov" <aia21@cam.ac.uk>
Cc: <linux-kernel@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>
Subject: Re: fadvise syscall?
Date: Sun, 17 Mar 2002 13:35:35 -0500 [thread overview]
Message-ID: <00a301c1cde2$fa76fed0$0100a8c0@DELLXP1> (raw)
In-Reply-To: <3C945635.4050101@mandrakesoft.com> <5.1.0.14.2.20020317170621.00abd980@pop.cus.cam.ac.uk>
Anton Altaparmakov writes
> Posix or not I still don't see why one would want that. You know what you
> are going to be using a file for at open time and you are not going to be
> changing your mind later. If you can show me a single _real_world_ example
> where one would genuinely want to change from one access pattern to
another
> without closing/reopening a particular file I would agree that fadvise is
a
> good idea but otherwise I think open(2) is the superior approach.
>
Sure, a database manager can change the access pattern on every query. If
there's an index and not too many records are expected to match, it will use
a random pattern, otherwise it will use sequential access.
next prev parent reply other threads:[~2002-03-17 18:39 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-17 8:39 fadvise syscall? Jeff Garzik
2002-03-17 8:56 ` Andrew Morton
2002-03-17 9:10 ` Jeff Garzik
2002-03-17 20:18 ` Richard Gooch
2002-03-17 13:41 ` Anton Altaparmakov
2002-03-17 14:31 ` Simon Richter
2002-03-17 14:56 ` Jan Hudec
2002-03-17 15:00 ` Anton Altaparmakov
2002-03-17 19:20 ` Joel Becker
2002-03-17 23:59 ` Anton Altaparmakov
2002-03-18 7:28 ` Jeff Garzik
2002-03-18 7:55 ` Andrew Morton
2002-03-18 8:07 ` Jeff Garzik
2002-03-18 8:17 ` Andrew Morton
2002-03-18 16:41 ` Richard Gooch
2002-03-18 19:00 ` Andrew Morton
2002-03-18 19:15 ` Richard Gooch
2002-03-22 16:05 ` Pavel Machek
2002-03-24 6:38 ` Stevie O
2002-03-24 11:24 ` Pavel Machek
2002-03-24 12:52 ` Anton Altaparmakov
2002-03-25 11:12 ` Pavel Machek
2002-03-18 8:05 ` Joel Becker
2002-03-18 8:10 ` Jeff Garzik
2002-03-18 8:20 ` Joel Becker
2002-03-18 8:14 ` Andrew Morton
2002-03-18 14:39 ` Martin K. Petersen
2002-03-18 19:15 ` Andrew Morton
2002-03-18 19:42 ` Martin K. Petersen
2002-03-19 20:08 ` Eric W. Biederman
2002-03-19 23:38 ` Martin K. Petersen
2002-03-17 15:13 ` Ken Hirsch
2002-03-17 17:14 ` Anton Altaparmakov
2002-03-17 18:31 ` Mark Mielke
2002-03-17 18:35 ` Ken Hirsch [this message]
2002-03-17 19:06 ` Anton Altaparmakov
2002-03-17 20:19 ` Ken Hirsch
2002-03-18 0:12 ` Anton Altaparmakov
[not found] ` <a73ujs$5mc$1@cesium.transmeta.com>
2002-03-18 8:58 ` Jan Hudec
2002-03-18 10:08 ` Jeff Garzik
2002-03-18 17:29 ` Mark Mielke
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