From: Felix von Leitner <felix-kernel@fefe.de>
To: linux-kernel@vger.kernel.org
Subject: 2.6.1 sendfile regression
Date: Sat, 10 Jan 2004 01:01:28 +0100 [thread overview]
Message-ID: <20040110000128.GA301@codeblau.de> (raw)
I'm getting a huge sendfile regression in 2.6.1; when serving a large
file on an IPv4 TCP socket via sendfile64, the transfer starts at about
4 MB (2.6.0: >7 MB) and the hard disk like stays on 100% (which normally
only happens if the file is badly fragmented, fragmentation of this file
is 0%). Then, suddenly, the network performance drops dramatically,
getting worse and worse. strace shows that the process is hanging
inside sendfile64 (which should not happen since the socket is
non-blocking). The process then stays inside sendfile for up to a
minute or so and can't be interrupted or killed in that time.
Please fix!
Felix
next reply other threads:[~2004-01-10 0:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-10 0:01 Felix von Leitner [this message]
2004-01-10 0:21 ` 2.6.1 sendfile regression Andrew Morton
2004-01-10 0:52 ` Ram Pai
2004-01-10 1:42 ` Andrew Morton
2004-01-10 5:23 ` Lennert Buytenhek
2004-01-12 2:58 ` Linus Torvalds
2004-01-12 11:31 ` Lennert Buytenhek
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