From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Hirokazu Takahashi <taka@valinux.co.jp>
Cc: habanero@us.ibm.com, neilb@cse.unsw.edu.au, davem@redhat.com,
linux-kernel@vger.kernel.org, nfs@lists.sourceforge.net
Subject: Re: [NFS] Re: [PATCH] zerocopy NFS for 2.5.36
Date: 18 Oct 2002 07:38:23 +0200 [thread overview]
Message-ID: <shs8z0w1f3k.fsf@charged.uio.no> (raw)
In-Reply-To: <20021018.012618.74755132.taka@valinux.co.jp>
>>>>> " " == Hirokazu Takahashi <taka@valinux.co.jp> writes:
> Congestion avoidance mechanism of NFS clients might cause this
> situation. I think the congestion window size is not enough
> for high end machines. You can make the window be larger as a
> test.
The congestion avoidance window is supposed to adapt to the bandwidth
that is available. Turn congestion avoidance off if you like, but my
experience is that doing so tends to seriously degrade performance as
the number of timeouts + resends skyrockets.
Cheers,
Trond
next prev parent reply other threads:[~2002-10-18 5:32 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-18 8:14 Hirokazu Takahashi
2002-09-18 23:00 ` David S. Miller
2002-09-18 23:54 ` Alan Cox
2002-09-19 0:16 ` Andrew Morton
2002-09-19 2:13 ` Aaron Lehmann
2002-09-19 3:30 ` Andrew Morton
2002-09-19 10:42 ` Alan Cox
2002-09-19 13:15 ` [NFS] " Hirokazu Takahashi
2002-09-19 20:42 ` Andrew Morton
2002-09-19 21:12 ` David S. Miller
2002-09-21 11:56 ` Pavel Machek
2002-10-14 5:50 ` Neil Brown
2002-10-14 6:15 ` David S. Miller
2002-10-14 10:45 ` kuznet
2002-10-14 10:48 ` David S. Miller
2002-10-14 12:01 ` Hirokazu Takahashi
2002-10-14 14:12 ` Andrew Theurer
2002-10-16 3:44 ` Neil Brown
2002-10-16 4:31 ` David S. Miller
2002-10-16 15:04 ` Andrew Theurer
2002-10-17 2:03 ` [NFS] " Andrew Theurer
2002-10-17 2:31 ` Hirokazu Takahashi
2002-10-17 13:16 ` Andrew Theurer
2002-10-17 13:26 ` Hirokazu Takahashi
2002-10-17 14:10 ` Andrew Theurer
2002-10-17 16:26 ` Hirokazu Takahashi
2002-10-18 5:38 ` Trond Myklebust [this message]
2002-10-18 7:19 ` Hirokazu Takahashi
2002-10-18 15:12 ` Andrew Theurer
2002-10-19 20:34 ` Hirokazu Takahashi
2002-10-22 21:16 ` Andrew Theurer
2002-10-23 9:29 ` Hirokazu Takahashi
2002-10-24 15:32 ` Andrew Theurer
2002-10-16 11:09 ` Hirokazu Takahashi
2002-10-16 17:02 ` kaza
2002-10-17 4:36 ` rddunlap
2002-09-19 2:00 [NFS] " Lever, Charles
[not found] <3D89176B.40FFD09B@digeo.com.suse.lists.linux.kernel>
[not found] ` <20020919.221513.28808421.taka@valinux.co.jp.suse.lists.linux.kernel>
[not found] ` <3D8A36A5.846D806@digeo.com.suse.lists.linux.kernel>
2002-09-20 1:00 ` Andi Kleen
2002-09-20 1:09 ` Andrew Morton
2002-09-20 1:23 ` Andi Kleen
2002-09-20 1:27 ` David S. Miller
2002-09-20 2:06 ` Andi Kleen
2002-09-20 2:01 ` David S. Miller
2002-09-20 2:28 ` Andi Kleen
2002-09-20 2:20 ` David S. Miller
2002-09-20 2:35 ` Andi Kleen
2002-10-16 14:04 Lever, Charles
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