From: Andrea Arcangeli <andrea@suse.de>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Ingo Molnar <mingo@elte.hu>, Rick Jones <raj@cup.hp.com>,
Linux Kernel List <linux-kernel@vger.kernel.org>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
"David S. Miller" <davem@redhat.com>
Subject: Re: [Fwd: [Fwd: Is sendfile all that sexy? (fwd)]]
Date: Thu, 18 Jan 2001 22:14:11 +0100 [thread overview]
Message-ID: <20010118221411.H28276@athlon.random> (raw)
In-Reply-To: <Pine.LNX.4.30.0101182041240.1009-100000@elte.hu> <Pine.LNX.4.10.10101181146190.18387-100000@penguin.transmeta.com>
In-Reply-To: <Pine.LNX.4.10.10101181146190.18387-100000@penguin.transmeta.com>; from torvalds@transmeta.com on Thu, Jan 18, 2001 at 11:52:33AM -0800
On Thu, Jan 18, 2001 at 11:52:33AM -0800, Linus Torvalds wrote:
> On Thu, 18 Jan 2001, Ingo Molnar wrote:
> >
> > i believe a network-conscious application should use MSG_MORE - that has
> > no system-call overhead.
>
> I think Andrea was thinking more of the case of the anonymous IO
> generator, and having the "controller" program thgat keeps the socket
> always in CORK mode, but uses SIOCPUSH when it doesn't know what teh
> future access patterns will be.
Yes. Your one is an example where TCP_CORK is necessary to make sure not to
send small packets and where instead MSG_MORE can't help.
> Basically, it could use SIOCPUSH whenever its request queue is empty,
> instead of uncorking (and re-corking when the next request comes in).
Exactly.
Andrea
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next prev parent reply other threads:[~2001-01-18 21:19 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3A65E825.FFEB194@cup.hp.com>
2001-01-17 19:27 ` [Fwd: [Fwd: Is sendfile all that sexy? (fwd)]] Linus Torvalds
2001-01-17 20:03 ` Rick Jones
2001-01-17 20:38 ` dean gaudet
2001-01-17 20:57 ` Rick Jones
2001-01-18 13:06 ` Ingo Molnar
2001-01-18 14:57 ` Andi Kleen
2001-01-18 18:24 ` Rick Jones
2001-01-19 2:46 ` dean gaudet
2001-01-19 3:03 ` dean gaudet
2001-01-19 19:07 ` Rick Jones
2001-01-19 20:03 ` kuznet
2001-01-19 21:20 ` Rick Jones
2001-01-20 18:03 ` kuznet
2001-01-22 18:44 ` Rick Jones
2001-01-20 14:56 ` Kai Henningsen
2001-01-23 7:20 ` dean gaudet
2001-01-20 23:09 ` Lincoln Dale
2001-01-20 23:27 ` James Sutherland
2001-01-21 0:02 ` Chris Wedgwood
2001-01-18 12:56 ` Ingo Molnar
2001-01-25 17:58 ` Jamie Lokier
2001-01-17 21:22 ` Linus Torvalds
2001-01-17 22:17 ` Rick Jones
2001-01-17 22:53 ` Linus Torvalds
2001-01-17 22:44 ` Jonathan Walther
2001-01-18 13:18 ` Ingo Molnar
2001-01-18 16:49 ` Linus Torvalds
2001-01-18 17:32 ` Ingo Molnar
2001-01-18 17:49 ` Zach Brown
2001-01-19 3:16 ` dean gaudet
2001-01-19 3:56 ` David Ford
2001-01-18 18:29 ` Rick Jones
2001-01-18 18:50 ` Linus Torvalds
2001-01-18 19:38 ` Andrea Arcangeli
2001-01-18 19:43 ` Ingo Molnar
2001-01-18 19:52 ` Linus Torvalds
2001-01-18 20:11 ` kuznet
2001-01-18 20:33 ` Ingo Molnar
2001-01-18 21:14 ` Andrea Arcangeli [this message]
2001-01-18 20:24 ` Andrea Arcangeli
2001-01-18 20:37 ` kuznet
2001-01-18 21:04 ` Andrea Arcangeli
2001-01-19 0:27 ` Olivier Galibert
2001-01-19 0:59 ` Rick Jones
2001-01-19 17:52 ` kuznet
2001-01-19 20:54 ` Andrea Arcangeli
2001-01-18 20:44 ` Ingo Molnar
2001-01-18 21:54 ` Andrea Arcangeli
2001-01-18 21:57 ` Ingo Molnar
2001-01-18 22:16 ` Andrea Arcangeli
2001-01-18 22:18 ` Ingo Molnar
2001-01-19 15:25 ` Andrea Arcangeli
2001-01-19 18:18 ` kuznet
2001-01-19 21:13 ` Andrea Arcangeli
2001-01-20 17:28 ` kuznet
2001-01-20 18:14 ` Abramo Bagnara
2001-01-20 18:23 ` Andrea Arcangeli
2001-01-20 19:05 ` kuznet
2001-01-20 19:30 ` Andrea Arcangeli
2001-01-20 19:39 ` Linus Torvalds
2001-01-20 20:22 ` kuznet
2001-01-20 21:20 ` Andrea Arcangeli
2001-01-20 20:56 ` Andrea Arcangeli
2001-01-21 18:37 ` kuznet
2001-01-20 19:39 ` kuznet
2001-01-20 21:05 ` Andrea Arcangeli
2001-01-20 21:31 ` Guus Sliepen
2001-01-18 22:20 ` Ingo Molnar
2001-01-18 19:45 ` Linus Torvalds
2001-01-18 19:59 ` kuznet
2001-01-18 20:44 ` Andrea Arcangeli
2001-01-19 3:25 ` dean gaudet
2001-01-19 3:35 ` dean gaudet
2001-01-18 9:34 ` Andi Kleen
2001-01-18 18:20 ` Rick Jones
2001-01-18 19:45 ` Andi Kleen
2001-01-18 20:30 ` kuznet
2001-01-18 20:50 ` Ingo Molnar
2001-01-18 22:49 ` Rick Jones
2001-01-18 13:29 ` Ingo Molnar
2001-01-18 16:51 ` Linus Torvalds
2001-01-18 17:04 ` Ingo Molnar
2001-01-17 21:51 Dan Kegel
-- strict thread matches above, loose matches on Subject: below --
2001-01-24 0:19 Cacophonix
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