Update the man page to descibe the "-d" option added by r304058.
This is a content change. Submitted by: will (earlier version) Reviewed by: ken, wblock MFC after: 1 month Relnotes: yes Differential Revision: https://reviews.freebsd.org/D1626
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=304059
@ -28,7 +28,7 @@
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.\" From: @(#)nfsstat.1 8.1 (Berkeley) 6/6/93
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.\" $FreeBSD$
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.\"
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.Dd April 23, 2015
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.Dd August 13, 2016
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.Dt NFSSTAT 1
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.Os
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.Sh NAME
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@ -38,7 +38,7 @@
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statistics
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.Sh SYNOPSIS
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.Nm
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.Op Fl cemszW
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.Op Fl cdemszW
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.Op Fl M Ar core
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.Op Fl N Ar system
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.Op Fl w Ar wait
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@ -57,6 +57,28 @@ The options are as follows:
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.Bl -tag -width indent
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.It Fl c
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Only display client side statistics.
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.It Fl d
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Display statistics for the new NFS server that are similar to those
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displayed by
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.Xr iostat 8 .
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This includes kilobytes per transfer, transfers per second, and megabytes per
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second for read, write, and all operations.
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It also includes the current queue depth, the busy percentage, and latency
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for all operations.
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If the
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.Fl W
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flag is added, commits per second, commit latency, read latency, and write
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latency are also added to the display.
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The busy percentage shown can exceed 100 at times.
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This is because of the way busy percentages are calculated.
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The busy time is calculated by adding the elapsed time between the
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last time an operation started or finished,
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and the current time.
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If there is only one operation outstanding, the "busy time" time
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will get updated with the total time of that operation.
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That means that the difference in the busy time between the two
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measurement intervals (often 1 second)
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will increase by more than the measurement interval.
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.It Fl e
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Report the extra statistics collected by the NFS client and
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server for NFSv4.
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@ -79,7 +101,8 @@ Only display server side statistics.
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Use wide format with interval short summary.
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This option is especially
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useful when combined with
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.Fl c
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.Fl c ,
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.Fl d ,
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or
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.Fl s
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and a time delay.
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