From: Olaf Kirch <okir@suse.de>
Subject: Re: knfsd brought to its knees, by a simple rsync or cp operation
Date: Tue, 1 Mar 2005 10:55:48 +0100
Message-ID: <20050301095548.GJ14402@suse.de>
References: <20050226082854.2a496ec3@be.back.l8r.net> <20050228100633.GA4822@suse.de> <20050228102307.3788a184@be.back.l8r.net> <20050228154455.GS4822@suse.de> <20050228112018.34fdeb2b@be.back.l8r.net>
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Cc: nfs@lists.sourceforge.net
To: Brad Barnett <lists@L8R.net>
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On Mon, Feb 28, 2005 at 11:20:18AM -0500, Brad Barnett wrote:
> I start a long and extensive cp -a process on the nfs server.  Local 'ls'
> responses are instant.  Write and read operations are instant (it's a raid
> 10) on the local box, as well.  However, my single remote client's "ls"
> operation changes to a jerky, slow operation.. with upwards of 5 second
> pauses in reads.

Are you using NFS over UDP? If you ping the server from the client, do
the round trip time and packet loss rate change when you start the
heavy IO jobs on the server?

Olaf
-- 
Olaf Kirch   |  --- o --- Nous sommes du soleil we love when we play
okir@suse.de |    / | \   sol.dhoop.naytheet.ah kin.ir.samse.qurax


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