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clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.\" Copyright (c) 1986, 1993
.\" The Regents of the University of California. All rights reserved.
added, from net/2 (patch 124).
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.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
rcsids
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.\" from: @(#)vmstat.8 8.1 (Berkeley) 6/6/93
.\" $Id: vmstat.8,v 1.8 1994/05/11 07:35:57 cgd Exp $
added, from net/2 (patch 124).
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.\"
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.TH VMSTAT 1 "June 6, 1993"
.UC 4
.SH NAME
vmstat \- report virtual memory statistics
.SH SYNOPSIS
.nf
.ft B
vmstat [ \-fimst ] [ \-c count ] [ \-M core ] [ \-N system ]
.ti +5
[ \-w wait ] [ disks ]
.ft R
.fi
.SH DESCRIPTION
.I Vmstat
added, from net/2 (patch 124).
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reports certain kernel statistics kept about process, virtual memory,
disk, trap and cpu activity.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.PP
added, from net/2 (patch 124).
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The options are as follows:
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.TP
\-c
added, from net/2 (patch 124).
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Repeat the display
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.I count
added, from net/2 (patch 124).
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times.
The first display is for the time since a reboot and each subsequent report
is for the time period since the last display.
If no
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.I wait
added, from net/2 (patch 124).
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interval is specified, the default is 1 second.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.TP
\-f
added, from net/2 (patch 124).
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Report on the number
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.IR fork (2)
added, from net/2 (patch 124).
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and
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.IR vfork (2)
added, from net/2 (patch 124).
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system calls since system startup, and the number of pages of virtual memory
involved in each.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.TP
\-i
added, from net/2 (patch 124).
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Report on the number of interrupts taken by each device since system
startup.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.TP
\-M
added, from net/2 (patch 124).
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Extract values associated with the name list from the specified core
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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instead of the default ``/dev/kmem''.
.TP
\-N
added, from net/2 (patch 124).
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Extract the name list from the specified system instead of the default
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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``/vmunix''.
.TP
\-m
added, from net/2 (patch 124).
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Report on the usage of kernel dynamic memory listed first by size of
allocation and then by type of usage.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.TP
\-s
added, from net/2 (patch 124).
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Display the contents of the
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.I sum
added, from net/2 (patch 124).
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structure, giving the total number of several kinds of paging related
events which have occurred since system startup.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.TP
\-t
added, from net/2 (patch 124).
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Report on the number of page in and page reclaims since system startup,
and the amount of time required by each.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.TP
\-w
added, from net/2 (patch 124).
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Pause
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.I wait
added, from net/2 (patch 124).
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seconds between each display.
If no repeat
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
1994-05-11 11:34:05 +04:00
.I count
added, from net/2 (patch 124).
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is specified, the default is infinity.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.PP
added, from net/2 (patch 124).
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By default,
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.I vmstat
added, from net/2 (patch 124).
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displays the following information:
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.PP
.TP
procs
added, from net/2 (patch 124).
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Information about the numbers of processes in various states.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.sp
.RS
.nf
r in run queue
b blocked for resources (i/o, paging, etc.)
w runnable or short sleeper (< 20 secs) but swapped
.fi
.RE
.TP
memory
added, from net/2 (patch 124).
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Information about the usage of virtual and real memory.
Virtual pages (reported in units of 1024 bytes) are considered active if
they belong to processes which are running or have run in the last 20
seconds.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.sp
.RS
.nf
avm active virtual pages
fre size of the free list
.fi
.RE
.TP
page
added, from net/2 (patch 124).
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Information about page faults and paging activity.
These are averaged each five seconds, and given in units per second.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.sp
.RS
.nf
re page reclaims (simulating reference bits)
at pages attached (found in free list)
pi pages paged in
po pages paged out
fr pages freed per second
de anticipated short term memory shortfall
sr pages scanned by clock algorithm, per-second
.fi
.RE
.TP
disks
added, from net/2 (patch 124).
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Disk operations per second (this field is system dependent).
Typically paging will be split across the available drives.
The header of the field is the first character of the disk name and
the unit number.
If more than four disk drives are configured in the system,
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.I vmstat
added, from net/2 (patch 124).
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displays only the first four drives.
To force
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.I vmstat
added, from net/2 (patch 124).
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to display specific drives, their names may be supplied on the command line.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.TP
faults
added, from net/2 (patch 124).
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Trap/interrupt rate averages per second over last 5 seconds.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.sp
.RS
.nf
in device interrupts per interval (including clock interrupts)
sy system calls per interval
cs cpu context switch rate (switches/interval)
.fi
.RE
.TP
cpu
added, from net/2 (patch 124).
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Breakdown of percentage usage of CPU time.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.sp
.RS
.nf
us user time for normal and low priority processes
sy system time
id cpu idle
.fi
.RE
.SH EXAMPLES
The command ``vmstat -i 5'' will print what the system is doing every five
seconds; this is a good choice of printing interval since this is how often
added, from net/2 (patch 124).
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some of the statistics are sampled in the system.
Others vary every second and running the output for a while will make it
apparent which are recomputed every second.
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.SH FILES
.ta \w'/dev/kmem 'u
/vmunix default kernel namelist
.br
/dev/kmem default memory file
.SH SEE ALSO
.IR fstat (1),
.IR netstat (1),
.IR nfsstat (1),
.IR ps (1),
.IR systat (1),
.IR iostat (8),
.IR pstat (8)
added, from net/2 (patch 124).
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.sp
The sections starting with ``Interpreting system activity'' in
clean up import. also, stub read_names for the i386, and comment out some refs to kmem stats fields that we don't have yet. This will need hacking, (1) for the various ports, (2) for the kmem stuff, and won't work completely right until those happen, and until the new vm system is integrated.
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.IR "Installing and Operating 4.3BSD" .
.SH BUGS
The \-c and \-w options are only available with the default output.