252 lines
6.4 KiB
Groff
252 lines
6.4 KiB
Groff
.\" Copyright (c) 1980, 1991, 1993, 1994
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.\" The Regents of the University of California. All rights reserved.
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.\" Copyright (c) 2002 Networks Associates Technology, Inc.
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.\" All rights reserved.
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.\"
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.\" Portions of this software was developed for the FreeBSD Project by
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.\" ThinkSec AS and NAI Labs, the Security Research Division of Network
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.\" Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
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.\" ("CBOSS"), as part of the DARPA CHATS research program.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)pstat.8 8.5 (Berkeley) 5/13/94
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.\" $FreeBSD$
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.\"
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.Dd October 11, 2014
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.Dt PSTAT 8
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.Os
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.Sh NAME
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.Nm pstat ,
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.Nm swapinfo
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.Nd display system data structures
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.Sh SYNOPSIS
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.Nm
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.Op Fl Tfghkmnst
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.Op Fl M Ar core Op Fl N Ar system
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.Nm swapinfo
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.Op Fl ghkm
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.Op Fl M Ar core Op Fl N Ar system
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.Sh DESCRIPTION
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The
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.Nm
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utility displays open file entry, swap space utilization,
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terminal state, and vnode data structures.
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.Pp
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If invoked as
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.Nm swapinfo
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the
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.Fl s
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option is implied, and only the
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.Fl k , m , g ,
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and
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.Fl h
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options are legal.
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.Pp
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If the
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.Fl M
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option is not specified, information is obtained from
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the currently running kernel via the
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.Xr sysctl 3
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interface.
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Otherwise, information is read from the specified core file,
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using the name list from the specified kernel image (or from
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the default image).
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.Pp
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The following options are available:
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.Bl -tag -width indent
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.It Fl n
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Print devices out by major/minor instead of name.
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.It Fl h
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.Dq Human-readable
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output.
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Use unit suffixes when printing swap partition sizes:
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Byte, Kilobyte, Megabyte, Gigabyte, Terabyte and Petabyte.
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.It Fl k
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Print sizes in kilobytes, regardless of the setting of the
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.Ev BLOCKSIZE
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environment variable.
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.It Fl m
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Print sizes in megabytes, regardless of the setting of the
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.Ev BLOCKSIZE
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environment variable.
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.It Fl g
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Print sizes in gigabytes, regardless of the setting of the
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.Ev BLOCKSIZE
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environment variable.
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.It Fl T
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Print the number of used and free slots in several system tables.
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This is useful for checking to see how large system tables have become
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if the system is under heavy load.
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.It Fl f
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Print the open file table with these headings:
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.Bl -tag -width indent
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.It LOC
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The core location of this table entry.
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.It TYPE
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The type of object the file table entry points to.
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.It FLG
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Miscellaneous state variables encoded thus:
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.Pp
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.Bl -tag -width indent -compact
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.It R
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open for reading
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.It W
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open for writing
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.It A
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open for appending
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.It I
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signal pgrp when data ready
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.El
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.It CNT
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Number of processes that know this open file.
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.It MSG
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Number of messages outstanding for this file.
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.It DATA
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The location of the vnode table entry or socket structure for this file.
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.It OFFSET
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The file offset (see
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.Xr lseek 2 ) .
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.El
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.It Fl s
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Print information about swap space usage on all the
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swap areas compiled into the kernel.
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The first column is the device name of the partition.
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The next column is
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the total space available in the partition.
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The
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.Ar Used
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column indicates the total blocks used so far; the
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.Ar Available
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column indicates how much space is remaining on each partition.
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The
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.Ar Capacity
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reports the percentage of space used.
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.Pp
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If more than one partition is configured into the system, totals for all
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of the statistics will be reported in the final line of the report.
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.It Fl t
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Print table for terminals
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with these headings:
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.Bl -tag -width indent
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.It LINE
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Device name.
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.It INQ
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Number of characters that can be stored in the input queue.
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.It CAN
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Number of characters in the input queue which can be read.
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.It LIN
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Number of characters in the input queue which cannot be read yet.
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.It LOW
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Low water mark for input.
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.It OUTQ
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Number of characters that can be stored in the output queue.
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.It USE
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Number of bytes in the output queue.
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.It LOW
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Low water mark for output.
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.It COL
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Calculated column position of terminal.
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.It SESS
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Process ID of the session leader.
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.It PGID
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Process group for which this is the controlling terminal.
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.It STATE
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Miscellaneous state variables encoded thus:
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.Pp
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.Bl -tag -width indent -compact
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.It I
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init/lock-state device nodes present
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.It C
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callout device nodes present
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.It O
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opened
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.It c
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console in use
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.It G
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gone
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.It B
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busy in
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.Xr open 2
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.It Y
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send SIGIO for input events
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.It L
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next character is literal
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.It H
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high watermark reached
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.It X
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open for exclusive use
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.It S
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output stopped (ixon flow control)
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.It l
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block mode input routine in use
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.It Z
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connection lost
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.It s
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i/o being snooped
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.It b
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busy in
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.Xr read 2
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or
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.Xr write 2
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.El
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.Pp
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The
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.Ql i
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and
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.Ql o
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characters refer to the previous character, to differentiate between
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input and output.
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.El
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.It Fl M
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Extract values associated with the name list from the specified core.
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.It Fl N
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If
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.Fl M
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is also specified,
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extract the name list from the specified system instead of the default,
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which is the kernel image the system has booted from.
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.El
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.Sh SEE ALSO
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.Xr ps 1 ,
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.Xr systat 1 ,
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.Xr stat 2 ,
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.Xr fs 5 ,
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.Xr iostat 8 ,
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.Xr vmstat 8
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.Rs
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.%T UNIX Implementation
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.%A K. Thompson
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.Re
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.Sh HISTORY
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The
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.Nm
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utility appeared in
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.Bx 4.0 .
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.Sh BUGS
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Does not understand
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.Tn NFS
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swap servers.
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