Date: Tue, 11 Nov 1997 10:07:14 -0800 From: David Greenman <dg@root.com> To: "matthew c. mead" <mmead@goof.com> Cc: hackers@FreeBSD.ORG Subject: Re: nfs read problems Message-ID: <199711111807.KAA26767@implode.root.com> In-Reply-To: Your message of "Tue, 11 Nov 1997 11:42:09 EST." <19971111114209.47857@goof.com>
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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
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