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From: kuznet@ms2.inr.ac.ru
To: andrea@suse.de (Andrea Arcangeli)
Cc: linux-kernel@vger.kernel.org
Subject: Re: [Fwd: [Fwd: Is sendfile all that sexy? (fwd)]]
Date: Fri, 19 Jan 2001 20:52:53 +0300 (MSK)	[thread overview]
Message-ID: <200101191752.UAA24169@ms2.inr.ac.ru> (raw)
In-Reply-To: <20010118220428.G28276@athlon.random> from "Andrea Arcangeli" at Jan 18, 1 10:04:28 pm

Hello!

> I thought setsockopt is meant to set an option in the socket,

It is not.

setsockopt() is simply a bit more clever extension to ioctl(),
which is adapted (in bsd style though) to understand layering
and has an explicit length to data.

It is prefered for all the operations on sockets,
and it is "must", if argument is not plain integer or operation
is specific to some protocol layer.


> controls the I/O (aka ioctl ;). Anyways either ioctl or setsockopt is fine in
> pratice

After BKL is moved down.



> NAGLE algorithm is only one, CORK algorithm is another different algorithm.

It is one algorithm. They differ only by amount of incomplete segments
allowed to be in flight. I.e. (in order of increased latency):

"nodelay" - Infinity
unnamed   - > 1
"nagle"   - 1
"cork"    - 0


Alexey
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  parent reply	other threads:[~2001-01-19 17:53 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 ` 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
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 [this message]
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
2001-01-24  0:19 Cacophonix

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