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28 .\" From: @(#)nfsstat.1 8.1 (Berkeley) 6/6/93
46 command displays statistics kept about
48 client and server activity.
49 For the NFSv4 server, the statistics are for operations within the Compound
50 RPCs and not the count of RPCs.
51 If you wish to compare RPC counts between NFSv3 and NFSv4, you must use
52 statistics in the client(s).
54 The options are as follows:
55 .Bl -tag -width "-w wait"
57 Only display client side statistics.
59 Display statistics for the NFS server that are similar to those
62 This includes kilobytes per transfer, transfers per second, and megabytes per
63 second for read, write, and all operations.
64 It also includes the current queue depth, the busy percentage, and latency
68 flag is added, commits per second, commit latency, read latency, and write
69 latency are also added to the display.
70 The busy percentage shown can exceed 100 at times.
71 This is because of the way busy percentages are calculated.
72 The busy time is calculated by adding the elapsed time between the
73 last time an operation started or finished,
75 If there is only one operation outstanding, the "busy time" time
76 will get updated with the total time of that operation.
77 That means that the difference in the busy time between the two
78 measurement intervals (often 1 second)
79 will increase by more than the measurement interval.
81 Report the extra statistics collected by the NFS client and
86 except that the statistics include NFSv4.1 and NFSv4.2 and the numbers aren't
87 clipped at one billion.
94 Deprecated and ignored.
96 Report the mount options for all NFS client mounts.
97 This option overrides all others and
99 will exit after completing the report.
101 Deprecated and ignored.
103 Only display server side statistics.
105 Use wide format with interval short summary.
106 This option is especially
107 useful when combined with
114 Display a shorter summary of
116 activity for both the client and server at
120 Reset statistics after displaying them.
126 in a selection of different human and machine readable formats.
129 for details on command line arguments.