From owner-freebsd-questions  Fri Feb  8 10:47:42 2002
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Date: Fri, 08 Feb 2002 12:47:34 -0600
To: freebsd-questions@freebsd.org
From: Jesse Ahrens <jahrens@centtech.com>
Subject: NFS master process using 99% cpu
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I've got an 4.5 nfs server with 20 nfs processes started and for the last 9 
days the box has been at a load of 1 with the nfsd:master process taking 
99% of the cpu. The box has 1GB of ram running generic kernel with the 
following sysctl.conf settings. I'm just curious if anyone else has run 
into this and how they got around it?

vfs.nfs.gatherdelay=0
vfs.nfs.async=1
vfs.vmiodirenable=1
kern.ipc.maxsockbuf=2097152
kern.ipc.somaxconn=8192
kern.ipc.maxsockets=16424
kern.maxfiles=65536
kern.maxfilesperproc=32768
net.inet.tcp.rfc1323=1
net.inet.tcp.delayed_ack=0
net.inet.tcp.sendspace=65535
net.inet.tcp.recvspace=65535
net.inet.udp.recvspace=65535
net.inet.udp.maxdgram=57344
net.local.stream.recvspace=65535
net.local.stream.sendspace=65535

rc.conf nfs flags:
nfs_reserved_port_only="YES"
nfs_server_enable="YES"
nfs_server_flags="-h 10.177.178.51 -h 10.177.176.40 -u -t -n 20"

Jesse Ahrens
Unix Systems Engineer
Centaur Technology
(512) 418-5794


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