From: Jakob Oestergaard <jakob@unthought.net>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: OT: why no file copy() libc/syscall ??
Date: Tue, 11 Nov 2003 21:57:12 +0100 [thread overview]
Message-ID: <20031111205711.GE25828@unthought.net> (raw)
In-Reply-To: <20031110142222.GA21220@nevyn.them.org>
On Mon, Nov 10, 2003 at 09:22:22AM -0500, Daniel Jacobowitz wrote:
> On Mon, Nov 10, 2003 at 07:29:15AM -0600, Jesse Pollard wrote:
> > Now back to the copy.. You don't have to use a read/write loop- mmap
> > is faster. And this is the other reason for not doing it in Kernel mode.
>
> Actually, last I checked, read/write was actually faster. Linus
> explained why a month or two ago.
It would also not break on large files...
--
................................................................
: jakob@unthought.net : And I see the elder races, :
:.........................: putrid forms of man :
: Jakob Østergaard : See him rise and claim the earth, :
: OZ9ABN : his downfall is at hand. :
:.........................:............{Konkhra}...............:
next prev parent reply other threads:[~2003-11-11 20:57 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <QiyV.1k3.15@gated-at.bofh.it>
2003-11-10 12:08 ` OT: why no file copy() libc/syscall ?? Ihar 'Philips' Filipau
2003-11-10 13:29 ` Jesse Pollard
2003-11-10 14:22 ` Daniel Jacobowitz
2003-11-11 20:57 ` Jakob Oestergaard [this message]
2003-11-10 15:19 ` David Woodhouse
2003-11-10 16:15 ` Jesse Pollard
2003-11-11 12:00 ` davide.rossetti
2003-11-11 12:08 ` Andreas Schwab
2003-11-11 12:23 ` davide.rossetti
[not found] <1068512710.722.161.camel@cube.suse.lists.linux.kernel>
[not found] ` <20031111133859.GA11115@bitwizard.nl.suse.lists.linux.kernel>
[not found] ` <20031111085323.M8854@devserv.devel.redhat.com.suse.lists.linux.kernel>
[not found] ` <bp0p5m$lke$1@cesium.transmeta.com.suse.lists.linux.kernel>
[not found] ` <20031113233915.GO1649@x30.random.suse.lists.linux.kernel>
[not found] ` <3FB4238A.40605@zytor.com.suse.lists.linux.kernel>
[not found] ` <20031114011009.GP1649@x30.random.suse.lists.linux.kernel>
[not found] ` <3FB42CC4.9030009@zytor.com.suse.lists.linux.kernel>
2003-11-14 15:26 ` Andi Kleen
2003-11-18 15:49 ` Jamie Lokier
2003-11-18 16:05 ` Andi Kleen
2003-11-18 16:25 ` Trond Myklebust
2003-11-19 13:30 ` Jesse Pollard
2003-11-18 16:58 ` H. Peter Anvin
2003-11-19 2:12 ` Linus Torvalds
2003-11-19 4:04 ` Chris Adams
[not found] <Qvw7.5Qf.9@gated-at.bofh.it>
[not found] ` <QxRl.17Y.9@gated-at.bofh.it>
[not found] ` <Qy0W.1sk.9@gated-at.bofh.it>
[not found] ` <QyaB.1GK.17@gated-at.bofh.it>
[not found] ` <QzSZ.4x1.1@gated-at.bofh.it>
[not found] ` <QCHh.X6.3@gated-at.bofh.it>
2003-11-11 9:51 ` Ihar 'Philips' Filipau
2003-11-11 10:41 ` jw schultz
[not found] ` <QH4e.eV.3@gated-at.bofh.it>
2003-11-11 14:11 ` Ihar 'Philips' Filipau
2003-11-11 15:02 ` Rogier Wolff
2003-11-11 15:31 ` Ihar 'Philips' Filipau
2003-11-11 20:22 ` Jan Harkes
2003-11-11 20:31 ` Valdis.Kletnieks
[not found] <QDtX.2dq.15@gated-at.bofh.it>
[not found] ` <QDtX.2dq.17@gated-at.bofh.it>
[not found] ` <QDtX.2dq.19@gated-at.bofh.it>
[not found] ` <QDtX.2dq.21@gated-at.bofh.it>
[not found] ` <QDtX.2dq.23@gated-at.bofh.it>
[not found] ` <QDtY.2dq.25@gated-at.bofh.it>
[not found] ` <QDtX.2dq.13@gated-at.bofh.it>
[not found] ` <QEg2.3zi.9@gated-at.bofh.it>
2003-11-11 12:43 ` Ihar 'Philips' Filipau
2003-11-11 1:05 Albert Cahalan
2003-11-11 3:50 ` Andreas Dilger
2003-11-11 4:03 ` Daniel Gryniewicz
2003-11-11 4:14 ` Valdis.Kletnieks
2003-11-11 6:00 ` Andreas Dilger
2003-11-11 8:58 ` Florian Weimer
2003-11-11 10:27 ` jw schultz
2003-11-11 20:08 ` Jan Harkes
2003-11-12 15:36 ` Jesse Pollard
2003-11-20 17:21 ` Florian Weimer
2003-11-20 19:08 ` Jesse Pollard
2003-11-20 19:12 ` Florian Weimer
2003-11-20 19:44 ` Justin Cormack
2003-11-20 20:44 ` Timothy Miller
2003-11-20 21:07 ` Andreas Dilger
2003-11-20 21:30 ` Timothy Miller
2003-11-20 21:49 ` Maciej Zenczykowski
2003-11-20 21:52 ` Timothy Miller
2003-11-20 21:58 ` Hua Zhong
2003-11-22 14:50 ` Pavel Machek
2003-11-22 19:50 ` Jamie Lokier
2003-11-22 23:07 ` Andreas Schwab
2003-11-21 16:24 ` Jesse Pollard
2003-11-20 21:48 ` Maciej Zenczykowski
2003-11-21 16:34 ` Jesse Pollard
2003-11-20 22:31 ` Xavier Bestel
2003-11-20 22:44 ` Andreas Dilger
2003-11-27 2:40 ` Robert White
2003-11-27 7:29 ` Nick Piggin
2003-11-27 9:15 ` David Lang
2003-11-27 8:56 ` Nick Piggin
2003-11-27 9:50 ` David Lang
2003-11-27 10:02 ` Jörn Engel
2003-11-27 10:58 ` David Lang
2003-12-01 16:20 ` Jesse Pollard
2003-11-11 8:52 ` Gábor Lénárt
2003-11-11 13:38 ` Rogier Wolff
2003-11-11 13:53 ` Jakub Jelinek
2003-11-11 13:58 ` David Woodhouse
2003-11-13 20:22 ` H. Peter Anvin
2003-11-13 23:39 ` Andrea Arcangeli
2003-11-14 0:04 ` jw schultz
2003-11-14 0:36 ` H. Peter Anvin
2003-11-14 1:10 ` Andrea Arcangeli
2003-11-14 1:15 ` H. Peter Anvin
2003-11-11 14:11 ` Albert Cahalan
2003-11-12 15:19 ` Jesse Pollard
2003-11-14 3:42 ` Albert Cahalan
-- strict thread matches above, loose matches on Subject: below --
2003-11-10 12:09 Bradley Chapman
2003-11-10 18:47 ` Tomas Konir
2003-11-10 22:44 ` Derek Foreman
2003-11-10 11:33 Davide Rossetti
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