From owner-freebsd-hackers  Tue Nov 11 10:05:37 1997
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To: "matthew c. mead" <mmead@goof.com>
cc: hackers@FreeBSD.ORG
Subject: Re: nfs read problems 
In-reply-to: Your message of "Tue, 11 Nov 1997 11:42:09 EST."
             <19971111114209.47857@goof.com> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Tue, 11 Nov 1997 10:07:14 -0800
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>	I'm having some severe problems with mounting an nfs
>filesystem and using it to store applications.  From what I can
>tell, it works fine via TCP NFS, but unbelievably slow.  When I
>don't specify TCP, and let it use UDP, it just breaks completely.
>For instance, when I'm running an application stored on the
>nfs server, I see this on the wire repeatedly, and the
>application never executes:
>
>
>galen.narnia.math.vt.edu -> calvin.narnia.math.vt.edu NFS C READ3 FH=DC3D at 0 for 8192
>calvin.narnia.math.vt.edu -> galen.narnia.math.vt.edu NFS R READ3 OK (8192 bytes)
>calvin.narnia.math.vt.edu -> galen.narnia.math.vt.edu UDP continuation ID=60083
>calvin.narnia.math.vt.edu -> galen.narnia.math.vt.edu UDP continuation ID=60083
>calvin.narnia.math.vt.edu -> galen.narnia.math.vt.edu UDP continuation ID=60083
>calvin.narnia.math.vt.edu -> galen.narnia.math.vt.edu UDP continuation ID=60083
>calvin.narnia.math.vt.edu -> galen.narnia.math.vt.edu UDP continuation ID=60083
>
>	Each time this set of packets is seen, the filehandle is
>the same, yet it's reading 8192 bytes once every 10-15 seconds.
>This is a 100Mbit wire, so it should be loading almost instantly.
>Is there a possibility this is an ethernet card problem?

   What ethernet card are you using?

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project