From: Stephan von Krawczynski <skraw@ithnet.com>
To: Neil Brown <neilb@cse.unsw.edu.au>
Cc: trond.myklebust@fys.uio.no, linux-kernel@vger.kernel.org
Subject: Re: nfs-server slowdown in 2.4.20-pre10 with client 2.2.19
Date: Mon, 14 Oct 2002 04:54:10 +0200 [thread overview]
Message-ID: <20021014045410.4721c209.skraw@ithnet.com> (raw)
In-Reply-To: <15785.64463.490494.526616@notabene.cse.unsw.edu.au>
On Mon, 14 Oct 2002 09:03:43 +1000
Neil Brown <neilb@cse.unsw.edu.au> wrote:
> On Sunday October 13, skraw@ithnet.com wrote:
> > Hello Trond,
> > hello all,
> >
> > just to drop a note: I am experiencing a rather dramatic slowdown of the
> > nfs-server in kernel 2.4.20-pre10 in conjunction with nfs-clients kernel
> > 2.2.19. To be more specific, the server is a SMP machine and runs always the
> > latest 2.4.x kernels. Upto 2.4.20-pre9 everything was quite ok, but pre10
> > brought an incredible loss. The setup did not change, only the kernel on the
> > server side. Merely all nfs action is writing to the server, reading from it is
> > next to zero in this setup.
>
> Very odd... There were no changes between pre9 and pre10 that
> directly relate to the nfs server, and none that immediately jump out
> at me that could cause a slowdown in NFS writes.
>
> What architecture? PPC saw a lot of updates.
i386, namely dual PIII 1GHz with 1 GB RAM
Are you sure it has nothing to do with the latest patch and SMP:
Trond Myklebust <trond.myklebust@fys.uio.no>:
o Workaround NFS hangs introduced in 2.4.20-pre
> What filesystem? jfs saw one change
reiserfs 3.6
> What storage device? IDE or SCSI?
IDE, PDC20268
> Can you try going back to -pre9 and confirm that performance comes
> back?
I will have a second try on the issue this night and be back with info tommorrow.
Thanks,
Stephan
> NeilBrown
next prev parent reply other threads:[~2002-10-14 2:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-13 15:21 nfs-server slowdown in 2.4.20-pre10 with client 2.2.19 Stephan von Krawczynski
2002-10-13 23:03 ` Neil Brown
2002-10-14 2:54 ` Stephan von Krawczynski [this message]
2002-10-14 3:38 ` Neil Brown
2002-10-14 14:36 ` Stephan von Krawczynski
2002-10-14 23:31 ` Jeff Lightfoot
2002-10-15 17:45 ` Stephan von Krawczynski
2002-10-15 22:35 ` Henning P. Schmiedehausen
2002-10-16 3:36 ` Neil Brown
2002-10-14 13:43 ` Trond Myklebust
2002-10-14 4:35 ` Jeff Lightfoot
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