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.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" From: @(#)nfsstat.1 8.1 (Berkeley) 6/6/93 33.\" $FreeBSD$ 34.\" 35.Dd October 18, 2007 36.Dt NFSSTAT 1 37.Os 38.Sh NAME 39.Nm nfsstat 40.Nd display 41.Tn NFS 42statistics 43.Sh SYNOPSIS 44.Nm 45.Op Fl cszW 46.Op Fl M Ar core 47.Op Fl N Ar system 48.Op Fl w Ar wait 49.Sh DESCRIPTION 50The 51.Nm 52command displays statistics kept about 53.Tn NFS 54client and server activity. 55.Pp 56The options are as follows: 57.Bl -tag -width indent 58.It Fl c 59Only display client side statistics. 60.It Fl M 61Extract values associated with the name list from the specified core 62instead of the default 63.Pa /dev/kmem . 64.It Fl N 65Extract the name list from the specified system instead of the default 66.Pa /boot/kernel/kernel . 67.It Fl s 68Only display server side statistics. 69.It Fl W 70Use wide format with interval short summary. 71This option is especially 72useful when combined with 73.Fl c 74or 75.Fl s 76and a time delay. 77.It Fl w 78Display a shorter summary of 79.Tn NFS 80activity for both the client and server at 81.Ar wait 82second intervals. 83.It Fl z 84Reset statistics after displaying them. 85.El 86.Sh FILES 87.Bl -tag -width ".Pa /boot/kernel/kernel" -compact 88.It Pa /boot/kernel/kernel 89default kernel namelist 90.It Pa /dev/kmem 91default memory file 92.El 93.Sh SEE ALSO 94.Xr fstat 1 , 95.Xr netstat 1 , 96.Xr ps 1 , 97.Xr systat 1 , 98.Xr sysctl 3 , 99.Xr iostat 8 , 100.Xr pstat 8 , 101.Xr vmstat 8 102.Sh HISTORY 103The 104.Nm 105command appeared in 106.Bx 4.4 . 107