From: Mike Fedyk <mfedyk@matchmail.com>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Bill Davidsen <davidsen@tmr.com>, linux-kernel@vger.kernel.org
Subject: Re: 2.6.0 NFS-server low to 0 performance
Date: Thu, 15 Jan 2004 21:44:49 -0800 [thread overview]
Message-ID: <20040116054449.GH1748@srv-lnx2600.matchmail.com> (raw)
In-Reply-To: <1073920323.1639.28.camel@nidelv.trondhjem.org>
On Mon, Jan 12, 2004 at 10:12:03AM -0500, Trond Myklebust wrote:
>
> > The 8k limit that you find in RFC1094 was an ad-hoc "limit" based purely
> > on testing using pre-1989 hardware. AFAIK most if not all of the
> > commercial vendors (Solaris, AIX, Windows/Hummingbird, EMC and Netapp)
> > are all currently setting the defaults to 32k block sizes for both TCP
> > and UDP.
> > Most of them want to bump that to a couple of Mbyte in the very near
> > future.
>
> Note: the future Mbyte sizes can, of course, only be supported on TCP
> since UDP has an inherent limit at 64k. The de-facto limit on UDP is
> therefore likely to remain at 32k (although I think at least one vendor
> has already tried pushing it to 48k).
Does the RPC max size limit change with memory or filesystem?
I have one system (K7 2200, 1.5GB, ext3) where it uses 32K RPCs, and another
(P2 300, 168MB, reiserfs3) and it uses 8k RPCs, even if I request larger max
sizes, and they're both running 2.6.1-bk2.
Strange...
next prev parent reply other threads:[~2004-01-16 5:45 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
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 [this message]
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
2004-01-13 1:55 ` Slow NFS performance over wireless! Roman Gaufman
2004-01-13 2:15 ` Trond Myklebust
2004-01-13 20:25 ` Joshua M. Thompson
2004-01-13 20:45 ` Trond Myklebust
2004-01-15 1:12 ` Miquel van Smoorenburg
[not found] ` <20040115013312.GO1594@srv-lnx2600.matchmail.com>
2004-01-15 2:04 ` Miquel van Smoorenburg
2004-01-15 2:35 ` Trond Myklebust
2004-01-15 19:00 ` Slowwwwwwwwwwww NFS read performance Trond Myklebust
2004-01-15 19:53 ` Ram Pai
2004-01-15 20:16 ` Trond Myklebust
2004-01-15 20:54 ` Trond Myklebust
2004-01-18 6:04 ` Greg Fitzgerald
2004-01-18 17:55 ` Mike Fedyk
2004-01-16 0:52 ` Slow NFS performance [was: over wireless!] Miquel van Smoorenburg
[not found] <1cpDr-5az-11@gated-at.bofh.it>
[not found] ` <1csrv-Er-9@gated-at.bofh.it>
2004-01-10 16:08 ` 2.6.0 NFS-server low to 0 performance Andi Kleen
2004-01-10 16:19 ` Trond Myklebust
2004-01-12 14:40 James Pearson
2004-01-12 15:22 ` Trond Myklebust
2004-01-13 11:08 ` Muli Ben-Yehuda
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