1.\" Copyright (c) 1989, 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 4. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" From: @(#)nfsstat.1 8.1 (Berkeley) 6/6/93 29.\" $FreeBSD$ 30.\" 31.Dd May 1, 2013 32.Dt NFSSTAT 1 33.Os 34.Sh NAME 35.Nm nfsstat 36.Nd display 37.Tn NFS 38statistics 39.Sh SYNOPSIS 40.Nm 41.Op Fl cemoszW 42.Op Fl M Ar core 43.Op Fl N Ar system 44.Op Fl w Ar wait 45.Sh DESCRIPTION 46The 47.Nm 48command displays statistics kept about 49.Tn NFS 50client and server activity. 51For the NFSv4 server, the statistics are for operations within the Compound 52RPCs and not the count of RPCs. 53If you wish to compare RPC counts between NFSv3 and NFSv4, you must use 54statistics in the client(s). 55.Pp 56The options are as follows: 57.Bl -tag -width indent 58.It Fl c 59Only display client side statistics. 60.It Fl e 61Report the extra statistics collected by the new NFS client and 62server for NFSv4. 63This option is incompatible with 64.Fl o . 65.It Fl M 66Extract values associated with the name list from the specified core 67instead of the default 68.Pa /dev/kmem . 69.It Fl m 70Report the mount options for all new NFS client mounts. 71This option overrides all others and 72.Nm 73will exit after completing the report. 74This option is only supported by the new NFS client. 75.It Fl N 76Extract the name list from the specified system instead of the default 77.Pa /boot/kernel/kernel . 78.It Fl o 79Report statistics for the old NFS client and/or server. 80Without this 81option statistics for the new NFS client and/or server will be reported. 82.It Fl s 83Only display server side statistics. 84.It Fl W 85Use wide format with interval short summary. 86This option is especially 87useful when combined with 88.Fl c 89or 90.Fl s 91and a time delay. 92.It Fl w 93Display a shorter summary of 94.Tn NFS 95activity for both the client and server at 96.Ar wait 97second intervals. 98.It Fl z 99Reset statistics after displaying them. 100.El 101.Sh FILES 102.Bl -tag -width ".Pa /boot/kernel/kernel" -compact 103.It Pa /boot/kernel/kernel 104default kernel namelist 105.It Pa /dev/kmem 106default memory file 107.El 108.Sh SEE ALSO 109.Xr fstat 1 , 110.Xr netstat 1 , 111.Xr ps 1 , 112.Xr systat 1 , 113.Xr sysctl 3 , 114.Xr iostat 8 , 115.Xr nfsdumpstate 8 , 116.Xr pstat 8 , 117.Xr vmstat 8 118.Sh HISTORY 119The 120.Nm 121command appeared in 122.Bx 4.4 . 123