Well my NFS reliability at work has gone way up, to the point where we are
now having time to look at the finer things in life, like performance
tuning. Performance on reads has been quite good, but when the cgi scripts
that the users are running on these machines have large writes to do (like
re-indexing a database) the writes go really slow. So slow in fact that
they sometimes time out, the CGI engine dies, and the job is never
completed, causing it to be restarted by the user.
So, the big question is whether there is anything we can tune to speed up
the writes. The freebsd machines are NFS clients to the sun servers doing
most of the web processing. Overall performance on the reads seems to be
best with nfs v3 over udp, which is what I'm using now. All of the web
server directories are soft mounted directly, with no amd currently in use.
thanks,
Doug
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