From: Andi Kleen <ak@suse.de>
To: piet@bluelane.com
Cc: "David S. Miller" <davem@davemloft.net>,
torvalds@osdl.org, diegocg@gmail.com,
linux-kernel@vger.kernel.org
Subject: Re: Linux 2.6.17-rc2
Date: 21 Apr 2006 04:05:50 +0200 [thread overview]
Message-ID: <p73bquv3cox.fsf@bragg.suse.de> (raw)
In-Reply-To: <1145569031.25127.64.camel@piet2.bluelane.com>
Piet Delaney <piet@bluelane.com> writes:
>
> FreeBSD folks developed a ZERO_COPY_SOCKET facility that uses COW;
> code looked great.
Linux had patches many years ago (in 2.3.x), but it was never merged
because it is inherently unscalable on MP. Classical BSD sockets really
don't work well for zero copy - you need a new interface (like POSIX aio)
that allows the kernel/user to tell each other when use of data is
finished and buffers can be reused.
-Andi
next prev parent reply other threads:[~2006-04-21 2:06 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-19 3:27 Linux 2.6.17-rc2 Linus Torvalds
2006-04-19 7:30 ` [patch, 2.6.17-rc2] dm: fix typo Ingo Molnar
2006-04-19 7:33 ` Ingo Molnar
2006-04-19 18:00 ` Linux 2.6.17-rc2 Diego Calleja
2006-04-19 18:04 ` Hua Zhong
2006-04-19 19:40 ` splice and tee [was Linux 2.6.17-rc2] Jonathan Corbet
2006-04-19 18:44 ` Linux 2.6.17-rc2 Linus Torvalds
2006-04-19 19:20 ` Grzegorz Kulewski
2006-04-19 20:09 ` Linus Torvalds
2006-04-19 21:23 ` Trond Myklebust
2006-04-19 21:49 ` Linus Torvalds
2006-04-19 22:19 ` Peter Naulls
2006-04-20 13:21 ` Diego Calleja
2006-04-20 14:50 ` Jens Axboe
2006-04-20 15:32 ` Linus Torvalds
2006-04-20 19:19 ` Jens Axboe
2006-04-20 18:40 ` Linh Dang
2006-04-20 19:49 ` Jens Axboe
2006-04-20 19:57 ` Linh Dang
2006-04-20 20:02 ` Nick Piggin
2006-04-21 7:53 ` Jens Axboe
2006-04-20 20:08 ` Jens Axboe
2006-04-20 19:26 ` David S. Miller
2006-04-20 19:34 ` Jens Axboe
2006-04-20 19:39 ` David S. Miller
2006-04-20 19:44 ` Jens Axboe
2006-04-20 19:54 ` Nick Piggin
2006-04-20 21:37 ` Piet Delaney
2006-04-20 22:20 ` Linus Torvalds
2006-04-20 23:39 ` Piet Delaney
2006-04-21 0:09 ` Linus Torvalds
2006-04-20 23:26 ` David Lang
2006-04-21 0:49 ` David S. Miller
2006-04-22 4:52 ` Troy Benjegerdes
2006-04-21 0:41 ` David S. Miller
2006-04-21 17:58 ` Linus Torvalds
2006-04-21 18:15 ` Steven Rostedt
2006-04-21 18:42 ` Steven Rostedt
2006-04-21 0:20 ` David S. Miller
2006-04-21 2:05 ` Andi Kleen [this message]
2006-04-21 6:47 ` Piet Delaney
2006-04-20 16:24 ` Ingo Oeser
2006-04-20 19:52 ` splice(), vmsplice() niftiness [was: Re: Linux 2.6.17-rc2] bjd
2006-04-21 10:21 ` Linux 2.6.17-rc2 Alistair John Strachan
2006-04-21 16:40 ` Linus Torvalds
2006-04-21 17:21 ` Stephen Rothwell
2006-04-21 22:02 ` Andi Kleen
2006-04-22 0:53 ` Alistair John Strachan
2006-04-22 1:07 ` Andi Kleen
2006-04-22 13:21 ` Alistair John Strachan
2006-04-21 11:01 ` Linux 2.6.17-rc2 - notifier chain problem? Herbert Poetzl
2006-04-21 21:31 ` Chandra Seetharaman
2006-04-22 0:58 ` Herbert Poetzl
2006-04-24 21:26 ` Chandra Seetharaman
2006-04-24 22:03 ` Andrew Morton
2006-04-24 23:01 ` Chandra Seetharaman
2006-04-24 23:28 ` Andrew Morton
2006-04-25 0:19 ` Chandra Seetharaman
2006-04-26 15:49 ` Alan Stern
2006-04-26 18:18 ` Chandra Seetharaman
2006-04-26 18:43 ` Andrew Morton
2006-04-26 19:29 ` Ashok Raj
2006-04-26 20:21 ` Chandra Seetharaman
2006-04-26 20:26 ` Ashok Raj
2006-04-28 23:12 ` Chandra Seetharaman
2006-04-28 23:23 ` Andrew Morton
2006-04-28 23:33 ` Linus Torvalds
2006-04-28 23:48 ` Chandra Seetharaman
2006-04-28 23:43 ` Chandra Seetharaman
2006-04-29 15:30 ` Alan Stern
2006-04-22 6:40 ` Keith Owens
[not found] <63bym-4wt-3@gated-at.bofh.it>
[not found] ` <64eE4-1gP-15@gated-at.bofh.it>
[not found] ` <64eX5-1RE-13@gated-at.bofh.it>
[not found] ` <64wre-2cg-35@gated-at.bofh.it>
2006-04-24 4:42 ` Linux 2.6.17-rc2 Robert Hancock
2006-04-24 13:08 ` Alistair John Strachan
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