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From: Neil Brown <neilb@cse.unsw.edu.au>
To: Stephan von Krawczynski <skraw@ithnet.com>
Date: Wed, 16 Oct 2002 13:36:34 +1000
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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
In-Reply-To: message from Stephan von Krawczynski on Tuesday October 15
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On Tuesday October 15, skraw@ithnet.com wrote:
> On Mon, 14 Oct 2002 13:38:32 +1000
> Neil Brown <neilb@cse.unsw.edu.au> wrote:
> 
> Hello Neil,
> hello Trond,
> 
> > This night I will try to reduce rsize/wsize from the current 8192 down to
> > 1024 as suggested by Jeff.
> 
> Ok. The result is: it is again way slower. I was not even capable to transfer 5
> GB within 18 hours, that's when I shot the thing down.
> Anything else I can test?

All I can suggest is a binary search among the patches that comprise
the difference between pre9 and pre10 to see when the problem comes
in.

There are about 40 patches, so about 6 test runs  should find the
culprit.

I tried to extract them from bk and have put the 40 patches at:

  http://www.cse.unsw.edu.au/~neilb/pre10/

There is a p-all.tgz  that contains them all.

NeilBrown
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