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Date:      Fri, 27 Aug 2004 13:35:18 -0500
From:      Bob Willcox <bob@immure.com>
To:        current list <freebsd-current@freebsd.org>
Subject:   nfsd slows with age
Message-ID:  <20040827183518.GB183@luke.immure.com>

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Hi All,

I have noticed that on my NFS file server system the nfsd process
gradually starts using more and more CPU time when servicing remote
requests. When first started, it consumes appx. 4% CPU time when I run
a "cvs update" on one of my client systems (the FreeBSD cvs repo is on
the server). After some days/weeks of running I have seen that same "cvs
update" operation cause nfsd to use up to 65% of the CPU time. Stopping
and restarting nfsd seems to fix things back to normal.

This on a dual lightly loaded opteron system with 2 GB of memory and
running an almost 3 month old -current:

# uname -a
FreeBSD rancor.immure.com 5.2-CURRENT FreeBSD 5.2-CURRENT #35: Mon May 31 10:54:57 CDT 2004     bob@amidala.immure.com:/usr/obj/stuff1/src/sys/AMIDALA  amd64

Has anyone else seen this behavior? Any ideas why it's happening? What
can I do to further track down the problem?

Thanks,
Bob

-- 
Bob Willcox             Acquaintance, n.:
bob@immure.com            A person whom we know well enough to borrow from,
Austin, TX                but not well enough to lend to.
                             -- Ambrose Bierce, "The Devil's Dictionary"



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