From: Ryan Cumming <bodnar42@phalynx.dhs.org>
To: Rik van Riel <riel@conectiva.com.br>
Cc: linux-kernel@vger.kernel.org, torvalds@transmeta.com
Subject: Re: Scheduler ( was: Just a second ) ...
Date: Wed, 19 Dec 2001 20:04:10 -0800 [thread overview]
Message-ID: <E16GuRG-0002Oz-00@phalynx> (raw)
In-Reply-To: <Pine.LNX.4.33L.0112200149330.15741-100000@imladris.surriel.com>
In-Reply-To: <Pine.LNX.4.33L.0112200149330.15741-100000@imladris.surriel.com>
On December 19, 2001 19:50, Rik van Riel wrote:
> On Tue, 18 Dec 2001, Linus Torvalds wrote:
> > The thing is, I'm personally very suspicious of the "features for that
> > exclusive 0.1%" mentality.
>
> Then why do we have sendfile(), or that idiotic sys_readahead() ?
Damn straights
sendfile(2) had an oppertunity to be a real extention of the Unix philosophy.
If it was called something like "copy" (to match "read" and "write"), and
worked on all fds (even if it didn't do zerocopy, it should still just work),
it'd fit in a lot more nicely than even BSD sockets. Alas, as it is, it's
more of a wart than an extention.
Now, sys_readahead() is pretty much the stupidest thing I've ever heard. If
we had a copy(2) syscall, we could do the same thing by: copy(sourcefile,
/dev/null, count). I don't think sys_readahead() even qualifies as a wart.
-Ryan
next prev parent reply other threads:[~2001-12-20 4:04 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.33.0112181508001.3410-100000@penguin.transmeta.com>
2001-12-20 3:50 ` Scheduler ( was: Just a second ) Rik van Riel
2001-12-20 4:04 ` Ryan Cumming [this message]
2001-12-20 5:39 ` David S. Miller
2001-12-20 5:58 ` Linus Torvalds
2001-12-20 6:01 ` David S. Miller
2001-12-20 22:40 ` Troels Walsted Hansen
2001-12-20 23:55 ` Chris Ricker
2001-12-20 23:59 ` CaT
2001-12-21 0:06 ` Davide Libenzi
2001-12-20 11:29 ` Rik van Riel
2001-12-20 11:34 ` David S. Miller
2001-12-20 5:52 ` Linus Torvalds
2001-12-20 6:33 ` Scheduler, Can we save some juice Timothy Covell
2001-12-20 6:50 ` Ryan Cumming
2001-12-20 6:52 ` Robert Love
2001-12-20 17:39 ` Timothy Covell
[not found] <20011218020456.A11541@redhat.com>
2001-12-18 16:50 ` Scheduler ( was: Just a second ) Linus Torvalds
2001-12-18 16:56 ` Rik van Riel
2001-12-18 17:18 ` Linus Torvalds
2001-12-18 19:04 ` Alan Cox
2001-12-18 21:02 ` Larry McVoy
2001-12-18 21:14 ` David S. Miller
2001-12-18 21:17 ` Larry McVoy
2001-12-18 21:19 ` Rik van Riel
2001-12-18 21:30 ` David S. Miller
2001-12-18 21:18 ` Rik van Riel
2001-12-19 16:50 ` Daniel Phillips
2001-12-18 19:11 ` Mike Galbraith
2001-12-18 19:15 ` Rik van Riel
2001-12-18 17:55 ` Davide Libenzi
2001-12-18 19:43 ` Alexander Viro
2001-12-18 5:59 V Ganesh
-- strict thread matches above, loose matches on Subject: below --
2001-12-18 5:11 Thierry Forveille
2001-12-17 21:41 ` John Heil
2001-12-18 14:31 ` Alan Cox
[not found] <20011217200946.D753@holomorphy.com>
2001-12-18 4:27 ` Linus Torvalds
2001-12-18 4:55 ` William Lee Irwin III
2001-12-18 6:09 ` Linus Torvalds
2001-12-18 6:34 ` Jeff Garzik
2001-12-18 12:23 ` Rik van Riel
2001-12-18 14:29 ` Alan Cox
2001-12-18 17:07 ` Linus Torvalds
2001-12-18 15:51 ` Martin Josefsson
2001-12-18 17:08 ` Linus Torvalds
2001-12-18 16:16 ` Roger Larsson
2001-12-18 17:16 ` Herman Oosthuysen
2001-12-18 17:16 ` Linus Torvalds
2001-12-18 17:21 ` David Mansfield
2001-12-18 17:27 ` Linus Torvalds
2001-12-18 17:54 ` Andreas Dilger
2001-12-18 18:27 ` Doug Ledford
2001-12-18 18:52 ` Andreas Dilger
2001-12-18 19:03 ` Doug Ledford
2001-12-19 9:19 ` Peter Wächtler
2001-12-19 11:05 ` Helge Hafting
2001-12-21 20:23 ` Rob Landley
2001-12-18 18:35 ` Linus Torvalds
2001-12-18 18:58 ` Alan Cox
2001-12-18 19:31 ` Gerd Knorr
2001-12-18 18:25 ` William Lee Irwin III
2001-12-18 14:21 ` Adam Schrotenboer
2001-12-18 18:13 ` Davide Libenzi
2001-12-16 0:13 Just a second Linus Torvalds
2001-12-17 22:48 ` Scheduler ( was: Just a second ) Davide Libenzi
2001-12-17 22:53 ` Linus Torvalds
2001-12-17 23:15 ` Davide Libenzi
2001-12-17 23:18 ` Linus Torvalds
2001-12-17 23:39 ` Davide Libenzi
2001-12-17 23:52 ` Benjamin LaHaise
2001-12-18 1:11 ` Linus Torvalds
2001-12-18 1:46 ` H. Peter Anvin
2001-12-18 5:54 ` Benjamin LaHaise
2001-12-18 6:10 ` Linus Torvalds
2001-12-18 1:54 ` Rik van Riel
2001-12-18 2:35 ` Linus Torvalds
2001-12-18 2:51 ` David Lang
2001-12-18 3:08 ` Davide Libenzi
2001-12-18 3:19 ` Davide Libenzi
2001-12-18 14:09 ` Alan Cox
2001-12-18 9:12 ` John Heil
2001-12-18 15:34 ` degger
2001-12-18 18:35 ` Mike Kravetz
2001-12-18 18:48 ` Davide Libenzi
2001-12-18 16:50 ` Mike Kravetz
2001-12-18 17:22 ` Linus Torvalds
2001-12-18 17:50 ` Davide Libenzi
2001-12-18 17:00 ` Linus Torvalds
2001-12-18 19:17 ` Alan Cox
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