X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fnfsstat%2Fnfsstat.man;h=52215a9293a5ff90915517a715e381230be9aa91;hp=72c8051c6f535481b1a51adcb6182e9a0bbc4f82;hb=e4719f90f77de2ea2c083cbc304b5cc7a7b516bd;hpb=8b7ad01b14df1e7529b9ba8a1ea17df0d6004ef9 diff --git a/utils/nfsstat/nfsstat.man b/utils/nfsstat/nfsstat.man index 72c8051..52215a9 100644 --- a/utils/nfsstat/nfsstat.man +++ b/utils/nfsstat/nfsstat.man @@ -1,39 +1,49 @@ .\" .\" nfsstat(8) .\" -.\" Copyright (C) 1996 Olaf Kirch -.TH nfsstat 8 "8 May 1996" +.\" Copyright (C) 1996-2005 Olaf Kirch +.TH nfsstat 8 "7 Aug 2007" .SH NAME -nfsstat \- print NFS statistics +nfsstat \- list NFS statistics .SH SYNOPSIS -.BI "/usr/sbin/nfsstat [-anrcsz] [-o " "facility" "] ... +.B nfsstat +[\fIOPTION\fR]... .SH DESCRIPTION The .B nfsstat -command retrieves and pretty-prints NFS kernel statistics. Currently, only -server-side statistics are supported, because the NFS client does not yet -collect any data. +displays statistics kept about NFS client and server activity. .SH OPTIONS .TP -.B -s +.B \-s, \-\-server Print only server-side statistics. The default is to print both server and client statistics. .TP -.B -c +.B \-c, \-\-client Print only client-side statistics. .TP -.B -n +.B \-n, \-\-nfs Print only NFS statistics. The default is to print both NFS and RPC information. .TP -.B -r -Print only RPC statistics. +.B \-2 +Print only NFS v2 statistics. The default is to only print information +about the versions of \fBNFS\fR that have non-zero counts. +.TP +.B \-3 +Print only NFS v3 statistics. +.TP +.B \-4 +Print only NFS v4 statistics. .TP -.B -z -Zero the kernel statistics counters. -This option is not currently supported. +.B \-m, \-\-mounts +Print information about each of the mounted \fBNFS\fR file systems. + +If this option is used, all other options are ignored. .TP -.BI -o " facility +.B \-r, \-\-rpc +Print only RPC statistics. +.TP +.BI \-o " facility Display statistics for the specified facility, which must be one of: .RS .TP @@ -54,8 +64,70 @@ total number of lookups, and the number of hits and misses. .B rc Usage information on the server's request reply cache, including the total number of lookups, and the number of hits and misses. +.TP +.B all +Display all of the above facilities. .RE +.TP +.B \-v, \-\-verbose +This is equivalent to \fB\-o all\fR. +.TP +.B \-l, \-\-list +Print information in list form. +.TP +.BI "\-S, \-\-since " file +Instead of printing current statistics, +.B nfsstat +imports statistics from +.I file +and displays the difference between those and the current statistics. +Valid input +.IR file "s may be in the form of " +.B /proc/net/rpc/nfs +(raw client stats), +.B /proc/net/rpc/nfsd +(raw server stats), or saved output from +.B nfsstat +itself (client and/or server stats). Any statistics missing from a saved +.B nfsstat +output +.I file +are treated as zeroes. +.TP +.B \-Z[interval], \-\-sleep=[interval] +Instead of printing current statistics and immediately exiting, +.B nfsstat +takes a snapshot of the current statistics and pauses until it receives +.B SIGINT +(typically from +.BR Ctrl-C ), +at which point it takes another snapshot and displays the difference +between the two. +If \fIinterval\fR is specified, +.B nfsstat +will print the number of \fBNFS\fR calls made since the previous report. +Stats will be printed repeatedly every \fIinterval\fR seconds. +.\" --------------------- EXAMPLES ------------------------------- .SH EXAMPLES +.TP +.B nfsstat \-o all \-234 +Show all information about all versions of \fBNFS\fR. +.TP +.B nfsstat \-\-verbose \-234 +Same as above. +.TP +.B nfsstat \-o all +Show all information about active versions of \fBNFS\fR. +.TP +.B nfsstat \-\-nfs \-\-server \-3 +Show statistics for \fBNFS\fR version 3 server. +.TP +.B nfsstat \-m +Show information about mounted \fBNFS\fR filesystems. +.\" --------------------- DISPLAY -------------------------------- +.SH DISPLAY +The \fBFlags\fR output from the \fB\-m\fR option is the same as the +flags give to the \fBmount\fR command. .\" --------------------- FILES ---------------------------------- .SH FILES .TP @@ -66,9 +138,26 @@ interface to kernel NFS server statistics. .B /proc/net/rpc/nfs .BR procfs -based interface to kernel NFS client statistics. +.TP +.B /proc/mounts +.BR procfs -based +interface to the mounted filesystems. .\" -------------------- SEE ALSO -------------------------------- .SH SEE ALSO .BR rpc.nfsd (8). +.BR nfs (5). +.\" ---------------------- BUGS ---------------------------------- +.SH BUGS +The default output has been changed. To get the old default output you must run \fBnfsstat \-\-auto \-2\fR. +.P +The function of the \fB\-v\fR and \fB\-a\fR options have changed. The \fB\-a\fR option +is now reserved for future use. The \fB\-v\fR does what the \fB\-a\fR option used to do, +and the new \fB\-[234]\fR options replace the \fB\-v\fR option. +.P +The \fBDisplay\fR section should be more complete. +.P +Further bugs can be found or reported at +.BR http://nfs.sf.net/ . .\" -------------------- AUTHOR ---------------------------------- .SH AUTHOR -Olaf Kirch, +Olaf Kirch,