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From: James Pearson <james-p@moving-picture.com>
To: linux-kernel@vger.kernel.org
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Subject: Re: 2.6.0 NFS-server low to 0 performance
Date: Mon, 12 Jan 2004 14:40:25 +0000	[thread overview]
Message-ID: <4002B1D9.872714FE@moving-picture.com> (raw)

Trond Myklebust <trond.myklebust@fys.uio.no> writes:
> På lau , 10/01/2004 klokka 11:08, skreiv Andi Kleen:
> > Trond Myklebust <trond.myklebust@fys.uio.no> writes:
> > 
> > > The correct solution to this problem is (b). I.e. we convert mount to
> > > use TCP as the default if it is available. That is consistent with what
> > > all other modern implementations do.
> > 
> > Please do that. Fragmented UDP with 16bit ipid is just russian roulette at 
> > today's network speeds.
> 
> I fully agree.
> 
> Chuck Lever recently sent an update for the NFS 'mount' utility to
> Andries. Among other things, that update changes this default. We're
> still waiting for his comments.

If mount defaults to trying TCP first then UDP if the TCP mount fails,
should there be separate options for [rw]size depending on what type of
mount actually takes place? e.g. 'ursize' and 'uwsize' for UDP and
'trsize' and 'twsize' for TCP ?

James Pearson

             reply	other threads:[~2004-01-12 14:40 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-12 14:40 James Pearson [this message]
2004-01-12 15:22 ` 2.6.0 NFS-server low to 0 performance Trond Myklebust
2004-01-13 11:08   ` Muli Ben-Yehuda
     [not found] <1cpDr-5az-11@gated-at.bofh.it>
     [not found] ` <1csrv-Er-9@gated-at.bofh.it>
2004-01-10 16:08   ` Andi Kleen
2004-01-10 16:19     ` Trond Myklebust
  -- strict thread matches above, loose matches on Subject: below --
2004-01-06  0:46 Guennadi Liakhovetski
2004-01-07 13:36 ` Guennadi Liakhovetski
2004-01-07 22:30   ` bill davidsen
2004-01-08 12:48     ` Guennadi Liakhovetski
2004-01-07 17:49 ` Mike Fedyk
2004-01-07 18:13   ` Guennadi Liakhovetski
2004-01-07 18:19     ` Mike Fedyk
2004-01-07 19:06       ` Guennadi Liakhovetski
2004-01-09 10:08         ` Guennadi Liakhovetski
2004-01-09 18:00           ` Mike Fedyk
2004-01-10  0:38             ` Guennadi Liakhovetski
2004-01-10  1:38               ` Mike Fedyk
2004-01-10 11:10                 ` Guennadi Liakhovetski
2004-01-10 14:30                   ` Trond Myklebust
2004-01-10 20:04                     ` Guennadi Liakhovetski
2004-01-10 21:57                       ` Trond Myklebust
2004-01-10 22:14                         ` Mike Fedyk
2004-01-10 22:47                           ` Trond Myklebust
2004-01-10 22:42                         ` Guennadi Liakhovetski
2004-01-10 22:51                           ` Jesper Juhl
2004-01-11 13:18                           ` Helge Hafting
2004-01-11 13:53                             ` Russell King
2004-01-11 14:24                               ` Guennadi Liakhovetski
2004-01-15 11:38                               ` Pavel Machek
2004-01-12  5:06                     ` Bill Davidsen
2004-01-12 14:27                       ` Trond Myklebust
2004-01-12 15:12                         ` Trond Myklebust
2004-01-16  5:44                           ` Mike Fedyk
2004-01-16  6:05                             ` Trond Myklebust
2004-01-16  6:53                               ` Mike Fedyk
2004-01-10 22:34                   ` Mike Fedyk
2004-01-10 22:52                     ` Guennadi Liakhovetski
2004-01-10 22:57                       ` Mike Fedyk
2004-01-10 23:00                         ` Guennadi Liakhovetski
2004-01-08 21:42     ` Pavel Machek
2004-01-12 23:18       ` Guennadi Liakhovetski
2004-01-12 23:28         ` Jesper Juhl
2004-01-13  0:39         ` Pavel Machek
2004-01-14  3:00           ` Daniel Roesen
2004-01-14 18:16           ` Guennadi Liakhovetski

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