From: Andrea Arcangeli <andrea@suse.de>
To: Matt Liotta <mliotta@teamtoolz.com>
Cc: "'Andi Kleen'" <ak@suse.de>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
Petru Paler <ppetru@ppetru.net>,
Jure Pecar <pegasus@telemach.net>,
linux-kernel@vger.kernel.org, thttpd@bomb.acme.com
Subject: Re: linux 2.2.19pre and thttpd (VM-global problem?)
Date: Fri, 29 Dec 2000 20:43:33 +0100 [thread overview]
Message-ID: <20001229204333.E16261@athlon.random> (raw)
In-Reply-To: <85F1402515F13F498EE9FBBC5E07594220ABD2@TTGCS.teamtoolz.net>
In-Reply-To: <85F1402515F13F498EE9FBBC5E07594220ABD2@TTGCS.teamtoolz.net>; from mliotta@teamtoolz.com on Fri, Dec 29, 2000 at 11:29:12AM -0800
On Fri, Dec 29, 2000 at 11:29:12AM -0800, Matt Liotta wrote:
> as such doesn't scale well with Linux 2.2 on a dual CPU machine. Our
> benchmarks show that we can handle more load on a single CPU machine then a
> dual CPU one with Linux 2.2. However, it is encouraging to see that the
If for whatever reason you can't use 2.4.x on it right now, in 2.2.19pre3aa4
there's an hack to do tcp_sendmsg checksum and all the copy_user (copies
between pagecache and userspace) with the big kernel lock released (so that it
can scale better in SMP). That's ugly but people on this list asked for this
feature and since it was very fast to implement it I added it. But don't expect
anything like 2.4.x SMP scalability!
Andrea
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next prev parent reply other threads:[~2000-12-29 20:14 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-12-29 19:29 linux 2.2.19pre and thttpd (VM-global problem?) Matt Liotta
2000-12-29 19:43 ` Andrea Arcangeli [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-01-01 21:56 Jure Pecar
2001-01-01 1:04 Jure Pecar
2000-12-29 16:38 Daniel R. Kegel
2000-12-29 21:23 ` Aaron Sethman
2000-12-29 1:32 Jure Pecar
2000-12-29 2:29 ` Andrea Arcangeli
2000-12-29 2:47 ` Andrea Arcangeli
2000-12-29 7:38 ` Petru Paler
2000-12-29 15:53 ` Andrea Arcangeli
2000-12-29 18:04 ` Petru Paler
2000-12-29 18:13 ` Jakob Østergaard
2000-12-29 18:21 ` Petru Paler
2000-12-29 18:56 ` Alan Cox
2000-12-29 19:11 ` Andrea Arcangeli
2000-12-29 18:50 ` Alan Cox
2000-12-29 19:06 ` Andrea Arcangeli
2000-12-29 19:14 ` Andi Kleen
2000-12-29 22:40 ` Jakob Østergaard
2000-12-30 4:21 ` dean gaudet
2000-12-30 17:43 ` Andrea Arcangeli
2000-12-29 8:40 ` Jure Pecar
2000-12-29 11:37 ` Alan Cox
2000-12-29 15:36 ` Andrea Arcangeli
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