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NAME    [Toc]    [Back]

     pstat, swapinfo -- display system data structures

SYNOPSIS    [Toc]    [Back]

     pstat [-Tfknst] [-M core] [-N system]

     swapinfo [-k] [-M core] [-N system]

DESCRIPTION    [Toc]    [Back]

     The pstat utility displays open file entry, swap space utilization, terminal
 state, and vnode data structures.

     If invoked as swapinfo the -s option is implied, and only the -k option
     is legal.

     The following options are available:

     -n      Print devices out by major/minor instead of name.

     -k      Print sizes in kilobytes, regardless of the setting of the
	     BLOCKSIZE environment variable.

     -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.

     -f      Print the open file table with these headings:

	     LOC     The core location of this table entry.

	     TYPE    The type of object the file table entry points to.

	     FLG     Miscellaneous state variables encoded thus:

		     R	     open for reading
		     W	     open for writing
		     A	     open for appending
		     I	     signal pgrp when data ready

	     CNT     Number of processes that know this open file.

	     MSG     Number of messages outstanding for this file.

	     DATA    The location of the vnode table entry or socket structure
		     for this file.

	     OFFSET  The file offset (see lseek(2)).

     -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 Used column indicates the total blocks used
	     so far;  the Available column indicates how much space is remaining
 on each partition.  The Capacity reports the percentage of
	     space used.

	     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.

     -t      Print table for terminals with these headings:

	     RAW     Number of characters in raw input queue.

	     CAN     Number of characters in canonicalized input queue.

	     OUT     Number of characters in output queue.

	     MODE    See tty(4).

	     ADDR    Physical device address.

	     DEL     Number of delimiters (newlines) in canonicalized input

	     COL     Calculated column position of terminal.

	     STATE   Miscellaneous state variables encoded thus:

		     T	     delay timeout in progress
		     W	     waiting for open to complete
		     O	     open
		     F	     outq has been flushed during DMA
		     C	     carrier is on
		     c	     connection open
		     B	     busy doing output
		     A	     process is waiting for space in output queue
		     a	     process is waiting for output to complete
		     X	     open for exclusive use
		     S	     output stopped (ixon flow control)
		     m	     output stopped (carrier flow control)
		     o	     output stopped (CTS flow control)
		     d	     output stopped (DSR flow control)
		     K	     input stopped
		     Y	     send SIGIO for input events
		     D	     state for lowercase `\' work
		     E	     within a `\.../' for PRTRUB
		     L	     next character is literal
		     P	     retyping suspended input (PENDIN)
		     N	     counting tab width, ignore FLUSHO
		     l	     block mode input routine in use
		     s	     i/o being snooped
		     Z	     connection lost

	     SESS    Kernel address of the session structure.

	     PGID    Process group for which this is controlling terminal.

	     DISC    Line discipline; `term' for TTYDISC or `ntty' for NTTYDISC
 or `tab' for TABLDISC or `slip' for SLIPDISC or
		     `ppp' for PPPDISC.

     -M      Extract values associated with the name list from the specified
	     core instead of the default /dev/kmem.

     -N      Extract the name list from the specified system instead of the
	     default /boot/kernel/kernel.

FILES    [Toc]    [Back]

     /boot/kernel/kernel  namelist
     /dev/mem		  default source of tables

SEE ALSO    [Toc]    [Back]

     ps(1), systat(1), stat(2), fs(5), iostat(8), vmstat(8)

     K. Thompson, UNIX Implementation.

BUGS    [Toc]    [Back]

     Does not understand NFS swap servers.

HISTORY    [Toc]    [Back]

     The pstat utility appeared in 4.0BSD.

FreeBSD 5.2.1			 May 23, 2002			 FreeBSD 5.2.1
[ Back ]
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