On 02/28/2012 02:25 PM, Vladimir Mosgalin wrote:
On 2012.02.28 at 11:32:17 -0500, Wayne Betts wrote next:
We have a couple of Scientific Linux 6.1 NFS servers. I looked at
/proc/net/rpc/nfsd and was surprised to see on both of them that
the thread histogram is all zero:
# cat /proc/net/rpc/nfsd | grep th
th 8 0 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
It is the same for me on nfs4 server on SL6.2
What statistics are you trying to get? What's wrong with standard way of
querying nfs server, "nfsstat -s" command?
It's much better than looking in proc, because the file you see there is
specific only to current linux kernel-mode nfs implementation, while
nfsstat -s *is* the correct and portable way across various systems.
The "th" statistics are unique to monitoring if you have the proper # of nfsd
threads running; 'nfsstat -s' can't show that.
I looked at this issue several months ago and I recall, but cannot find
reference today, that the kernel developers decided the code to collect
statistics was broken and they've disabled it.
That kinda stinks, since the code was *basically* functional and gave a clue.
