From: "David S. Miller" <davem@redhat.com>
To: riel@conectiva.com.br
Cc: dmaas@dcine.com, linux-kernel@vger.kernel.org
Subject: Re: Swap
Date: Tue, 20 Nov 2001 14:11:29 -0800 (PST) [thread overview]
Message-ID: <20011120.141129.57454002.davem@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.33L.0111202004220.4079-100000@imladris.surriel.com>
In-Reply-To: <037701c1720a$159ee9a0$1a01a8c0@allyourbase> <Pine.LNX.4.33L.0111202004220.4079-100000@imladris.surriel.com>
From: Rik van Riel <riel@conectiva.com.br>
Date: Tue, 20 Nov 2001 20:05:05 -0200 (BRST)
Consider this a VM bug, mmap() really should be more efficient.
read() is always going to be faster until mmap() can
use large page mappings for the user. This is why
mmap() is slower.
Even if the whole thing is cached in memory, read() will
always be faster.
next prev parent reply other threads:[~2001-11-20 22:11 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.kmf405v.j74f21@ifi.uio.no>
[not found] ` <fa.ns5ugpv.q02sbg@ifi.uio.no>
2001-11-20 21:26 ` Swap Dan Maas
2001-11-20 22:05 ` Swap Rik van Riel
2001-11-20 22:11 ` David S. Miller [this message]
2001-11-20 22:19 ` Swap Rik van Riel
2001-11-20 22:34 ` Swap Dan Maas
2001-11-20 23:05 ` Swap Andrew Morton
[not found] ` <fa.jc73ejv.1s6e80t@ifi.uio.no>
2001-11-21 1:45 ` Swap Håvard Kvålen
2001-11-21 4:23 ` Swap Andreas Dilger
2001-11-20 22:23 ` Swap Andrew Morton
2001-11-20 23:01 ` Swap David S. Miller
2001-11-20 23:35 ` Swap Rik van Riel
2001-11-20 23:40 ` Swap David S. Miller
2001-11-21 0:19 ` Swap Rik van Riel
2001-11-21 0:21 ` Swap David S. Miller
[not found] <fa.kb6ct7v.pgku0d@ifi.uio.no>
[not found] ` <fa.k8qdvcv.184ak2l@ifi.uio.no>
2001-11-20 22:46 ` Swap Dan Maas
2001-11-20 23:17 ` Swap Trond Myklebust
[not found] <fa.inl6g6v.1mmbp4@ifi.uio.no>
[not found] ` <fa.heevhav.sjs8an@ifi.uio.no>
2001-11-18 22:15 ` Swap Dan Maas
2001-11-18 22:43 ` Swap François Cami
2001-11-19 9:18 ` Swap James A Sutherland
2001-11-19 10:51 ` Swap Remco Post
2001-11-19 13:33 ` Swap James A Sutherland
2001-11-19 13:46 ` Swap Remco Post
2001-11-19 16:58 ` Swap Rik van Riel
[not found] ` <Pine.LNX.4.33L.0111191458150.1491-100000@duckman.distro.conecti va>
2001-11-19 21:13 ` Swap Alex Bligh - linux-kernel
2001-11-19 21:17 ` Swap Rik van Riel
[not found] ` <Pine.LNX.4.33L.0111191917000.1491-100000@duckman.distro.conecti va>
2001-11-19 21:52 ` Swap Alex Bligh - linux-kernel
2001-11-19 16:36 ` Swap Jesse Pollard
2001-11-20 14:51 ` Swap J.A. Magallon
2001-11-20 16:01 ` Swap Wolfgang Rohdewald
2001-11-20 16:06 ` Swap Remco Post
2001-11-20 16:12 ` Swap Nick LeRoy
2001-11-20 16:20 ` Swap Richard B. Johnson
2001-11-20 17:14 ` Swap Christopher Friesen
2001-11-20 17:40 ` Swap Richard B. Johnson
2001-11-20 18:14 ` Swap Nick LeRoy
2001-11-21 10:17 ` Swap Helge Hafting
2001-11-21 11:17 ` Swap Alan Cox
2001-11-20 23:20 ` Swap Luigi Genoni
2001-11-21 16:44 ` Swap Remco Post
2001-11-20 17:58 ` Swap Wolfgang Rohdewald
2001-11-20 21:05 ` Swap Steffen Persvold
2001-11-20 21:18 ` Swap Mike Fedyk
2001-11-20 21:33 ` Swap Nick LeRoy
2001-11-20 21:44 ` Swap Mike Fedyk
2001-11-20 22:00 ` Swap Nick LeRoy
2001-11-21 16:53 ` Swap Remco Post
2001-11-20 21:43 ` Swap Richard B. Johnson
2001-11-20 21:19 ` Swap Nick LeRoy
2001-11-21 16:48 ` Swap Remco Post
2001-11-20 20:58 ` Swap Mike Fedyk
2001-11-19 10:03 ` Swap Tim Connors
2001-11-19 10:16 ` Swap Dan Maas
2001-11-18 21:12 Swap war
2001-11-18 21:25 ` Swap James A Sutherland
2001-11-18 21:28 ` Swap war
2001-11-18 21:42 ` Swap François Cami
2001-11-18 21:45 ` Swap war
2001-11-18 23:03 ` Swap Erik Gustavsson
2001-11-19 18:12 ` Swap Eric W. Biederman
2001-11-19 18:43 ` Swap Rik van Riel
2001-11-20 2:49 ` Swap Eric W. Biederman
2001-11-20 3:33 ` Swap Ryan Cumming
2001-11-20 11:43 ` Swap Rik van Riel
2001-11-20 11:41 ` Swap Rik van Riel
2001-11-19 19:12 ` Swap James A Sutherland
2001-11-20 2:47 ` Swap Eric W. Biederman
2001-11-20 9:16 ` Swap James A Sutherland
2001-11-18 22:05 ` Swap J.A. Magallon
2001-11-18 22:21 ` Swap François Cami
2001-11-18 22:36 ` Swap Charles Marslett
2001-11-18 22:54 ` Swap J.A. Magallon
2001-11-18 23:36 ` Swap Bernd Eckenfels
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