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-.\" Copyright (c) 1980, 1991, 1993, 1994
-.\" The Regents of the University of California. All rights reserved.
-.\" Copyright (c) 2002 Networks Associates Technology, Inc.
-.\" All rights reserved.
-.\"
-.\" Portions of this software was developed for the FreeBSD Project by
-.\" ThinkSec AS and NAI Labs, the Security Research Division of Network
-.\" Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
-.\" ("CBOSS"), as part of the DARPA CHATS research program.
-.\"
-.\" 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.
-.\" 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.
-.\"
-.\" @(#)pstat.8 8.5 (Berkeley) 5/13/94
-.\" $FreeBSD$
-.\"
-.Dd August 20, 2008
-.Dt PSTAT 8
-.Os
-.Sh NAME
-.Nm pstat ,
-.Nm swapinfo
-.Nd display system data structures
-.Sh SYNOPSIS
-.Nm
-.Op Fl Tfghkmnst
-.Op Fl M Ar core Op Fl N Ar system
-.Nm swapinfo
-.Op Fl ghkm
-.Op Fl M Ar core Op Fl N Ar system
-.Sh DESCRIPTION
-The
-.Nm
-utility displays open file entry, swap space utilization,
-terminal state, and vnode data structures.
-.Pp
-If invoked as
-.Nm swapinfo
-the
-.Fl s
-option is implied, and only the
-.Fl k , m , g ,
-and
-.Fl h
-options are legal.
-.Pp
-If the
-.Fl M
-option is not specified, information is obtained from
-the currently running kernel via the
-.Xr sysctl 3
-interface.
-Otherwise, information is read from the specified core file,
-using the name list from the specified kernel image (or from
-the default image).
-.Pp
-The following options are available:
-.Bl -tag -width indent
-.It Fl n
-Print devices out by major/minor instead of name.
-.It Fl h
-.Dq Human-readable
-output.
-Use unit suffixes when printing swap partition sizes:
-Byte, Kilobyte, Megabyte, Gigabyte, Terabyte and Petabyte.
-.It Fl k
-Print sizes in kilobytes, regardless of the setting of the
-.Ev BLOCKSIZE
-environment variable.
-.It Fl m
-Print sizes in megabytes, regardless of the setting of the
-.Ev BLOCKSIZE
-environment variable.
-.It Fl g
-Print sizes in gigabytes, regardless of the setting of the
-.Ev BLOCKSIZE
-environment variable.
-.It Fl T
-Print the number of used and free slots in several system tables.
-This is useful for checking to see how large system tables have become
-if the system is under heavy load.
-.It Fl f
-Print the open file table with these headings:
-.Bl -tag -width indent
-.It LOC
-The core location of this table entry.
-.It TYPE
-The type of object the file table entry points to.
-.It FLG
-Miscellaneous state variables encoded thus:
-.Pp
-.Bl -tag -width indent -compact
-.It R
-open for reading
-.It W
-open for writing
-.It A
-open for appending
-.It I
-signal pgrp when data ready
-.El
-.It CNT
-Number of processes that know this open file.
-.It MSG
-Number of messages outstanding for this file.
-.It DATA
-The location of the vnode table entry or socket structure for this file.
-.It OFFSET
-The file offset (see
-.Xr lseek 2 ) .
-.El
-.It Fl s
-Print information about swap space usage on all the
-swap areas compiled into the kernel.
-The first column is the device name of the partition.
-The next column is
-the total space available in the partition.
-The
-.Ar Used
-column indicates the total blocks used so far; the
-.Ar Available
-column indicates how much space is remaining on each partition.
-The
-.Ar Capacity
-reports the percentage of space used.
-.Pp
-If more than one partition is configured into the system, totals for all
-of the statistics will be reported in the final line of the report.
-.It Fl t
-Print table for terminals
-with these headings:
-.Bl -tag -width indent
-.It LINE
-Device name.
-.It INQ
-Number of characters that can be stored in the input queue.
-.It CAN
-Number of characters in the input queue which can be read.
-.It LIN
-Number of characters in the input queue which cannot be read yet.
-.It LOW
-Low water mark for input.
-.It OUTQ
-Number of characters that can be stored in the output queue.
-.It USE
-Number of bytes in the output queue.
-.It LOW
-Low water mark for output.
-.It COL
-Calculated column position of terminal.
-.It SESS
-Kernel address of the session structure.
-.It PGID
-Process group for which this is the controlling terminal.
-.It STATE
-Miscellaneous state variables encoded thus:
-.Pp
-.Bl -tag -width indent -compact
-.It I
-init/lock-state device nodes present
-.It C
-callout device nodes present
-.It O
-opened
-.It c
-console in use
-.It G
-gone
-.It B
-busy in
-.Xr open 2
-.It Y
-send SIGIO for input events
-.It L
-next character is literal
-.It H
-high watermark reached
-.It X
-open for exclusive use
-.It S
-output stopped (ixon flow control)
-.It l
-block mode input routine in use
-.It Z
-connection lost
-.It s
-i/o being snooped
-.It b
-busy in
-.Xr read 2
-or
-.Xr write 2
-.El
-.Pp
-The
-.Ql i
-and
-.Ql o
-characters refer to the previous character, to differentiate between
-input and output.
-.El
-.It Fl M
-Extract values associated with the name list from the specified core.
-.It Fl N
-If
-.Fl M
-is also specified,
-extract the name list from the specified system instead of the default,
-which is the kernel image the system has booted from.
-.El
-.Sh SEE ALSO
-.Xr ps 1 ,
-.Xr systat 1 ,
-.Xr stat 2 ,
-.Xr fs 5 ,
-.Xr iostat 8 ,
-.Xr vmstat 8
-.Rs
-.%T UNIX Implementation
-.%A K. Thompson
-.Re
-.Sh HISTORY
-The
-.Nm
-utility appeared in
-.Bx 4.0 .
-.Sh BUGS
-Does not understand
-.Tn NFS
-swap servers.
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