-s, --server
Print only server-side statistics. The default is to print
both server and client statistics.
-c, --client
Print only client-side statistics.
-n, --nfs
Print only NFS statistics. The default is to print both
NFS and RPC information.
-2 Print only NFS v2 statistics. The default is to only print
information about the versions of NFS that have non-zero
counts.
-3 Print only NFS v3 statistics. The default is to only print
information about the versions of NFS that have non-zero
counts.
-4 Print only NFS v4 statistics. The default is to only print
information about the versions of NFS that have non-zero
counts.
-m, --mounts
Print information about each of the mounted NFS file
systems.
If this option is used, all other options are ignored.
-r, --rpc
Print only RPC statistics.
-o facility
Display statistics for the specified facility, which must
be one of:
nfs NFS protocol information, split up by RPC call.
rpc General RPC information.
net Network layer statistics, such as the number of
received packets, number of TCP connections, etc.
fh Usage information on the server's file handle
cache, including the total number of lookups, and
the number of hits and misses.
rc Usage information on the server's request reply
cache, including the total number of lookups, and
the number of hits and misses.
io Usage information on the server's io statistics;
bytes read and written.
ra Usage information on the server's read ahead cache,
including the ra cache size, the depth of ra cache
hits, and ra cache misses.
all Display all of the above facilities.
-v, --verbose
This is equivalent to -o all.
-l, --list
Print information in list form.
-S, --since file
Instead of printing current statistics, nfsstat imports
statistics from file and displays the difference between
those and the current statistics. Valid input files may
be in the form of /proc/net/rpc/nfs (raw client stats),
/proc/net/rpc/nfsd (raw server stats), or saved output
from nfsstat itself (client and/or server stats). Any
statistics missing from a saved nfsstat output file are
treated as zeroes.
-Z[interval], --sleep=[interval]
Instead of printing current statistics and immediately
exiting, nfsstat takes a snapshot of the current
statistics and pauses until it receives SIGINT (typically
from Ctrl-C), at which point it takes another snapshot and
displays the difference between the two. If interval is
specified, nfsstat will print the number of NFS calls made
since the previous report. Stats will be printed
repeatedly every interval seconds.
