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