Date: Sat, 13 Aug 2016 20:21:32 +0000 (UTC) From: Rick Macklem <rmacklem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r304059 - head/usr.bin/nfsstat Message-ID: <201608132021.u7DKLWXq040782@repo.freebsd.org>
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Author: rmacklem Date: Sat Aug 13 20:21:32 2016 New Revision: 304059 URL: https://svnweb.freebsd.org/changeset/base/304059 Log: 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 Modified: head/usr.bin/nfsstat/nfsstat.1 Modified: head/usr.bin/nfsstat/nfsstat.1 ============================================================================== --- head/usr.bin/nfsstat/nfsstat.1 Sat Aug 13 20:14:44 2016 (r304058) +++ head/usr.bin/nfsstat/nfsstat.1 Sat Aug 13 20:21:32 2016 (r304059) @@ -28,7 +28,7 @@ .\" From: @(#)nfsstat.1 8.1 (Berkeley) 6/6/93 .\" $FreeBSD$ .\" -.Dd April 23, 2015 +.Dd August 13, 2016 .Dt NFSSTAT 1 .Os .Sh NAME @@ -38,7 +38,7 @@ statistics .Sh SYNOPSIS .Nm -.Op Fl cemszW +.Op Fl cdemszW .Op Fl M Ar core .Op Fl N Ar system .Op Fl w Ar wait @@ -57,6 +57,28 @@ The options are as follows: .Bl -tag -width indent .It Fl c Only display client side statistics. +.It Fl d +Display statistics for the new NFS server that are similar to those +displayed by +.Xr iostat 8 . +This includes kilobytes per transfer, transfers per second, and megabytes per +second for read, write, and all operations. +It also includes the current queue depth, the busy percentage, and latency +for all operations. +If the +.Fl W +flag is added, commits per second, commit latency, read latency, and write +latency are also added to the display. +The busy percentage shown can exceed 100 at times. +This is because of the way busy percentages are calculated. +The busy time is calculated by adding the elapsed time between the +last time an operation started or finished, +and the current time. +If there is only one operation outstanding, the "busy time" time +will get updated with the total time of that operation. +That means that the difference in the busy time between the two +measurement intervals (often 1 second) +will increase by more than the measurement interval. .It Fl e Report the extra statistics collected by the NFS client and server for NFSv4. @@ -79,7 +101,8 @@ Only display server side statistics. Use wide format with interval short summary. This option is especially useful when combined with -.Fl c +.Fl c , +.Fl d , or .Fl s and a time delay.
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