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Message-ID: <15918.40855.583602.576856@charged.uio.no>
Date: Wed, 22 Jan 2003 14:41:43 +0100
To: Oliver Tennert <tennert@science-computing.de>
Cc: linux-kernel@vger.kernel.org, kaw@science-computing.de
Subject: Re: NFS client problem and IO blocksize
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Reply-To: trond.myklebust@fys.uio.no
From: Trond Myklebust <trond.myklebust@fys.uio.no>
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>>>>> " " == Oliver Tennert <tennert@science-computing.de> writes:

     > As you can see, the actual server-side s_blksize is 4k, whereas
     > the Linux client takes it to be 512 bytes. An strace output
     > confirms that a "cat" of a file actually uses 512 byte IO
     > chunks.

I'm taking the value from the NFSv3 'wtmult' attribute, which is
described thus in RFC1813:

      wtmult
         The suggested multiple for the size of a WRITE
         request.

If the AIX NFS server is returning 512 bytes, then that's what
'statfs' returns.

Cheers,
  Trond
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