389 lines
8.7 KiB
Groff
389 lines
8.7 KiB
Groff
.\" $NetBSD: pstat.8,v 1.29 2002/02/21 10:58:00 enami Exp $
|
|
.\"
|
|
.\" Copyright (c) 1980, 1991, 1993, 1994
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" 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.
|
|
.\"
|
|
.\" from: @(#)pstat.8 8.5 (Berkeley) 5/13/94
|
|
.\"
|
|
.Dd May 13, 1994
|
|
.Dt PSTAT 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm pstat
|
|
.Nd display system data structures
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Oo
|
|
.Fl T | Fl f | Fl s |
|
|
.Fl t | Fl v
|
|
.Oc
|
|
.Op Fl kn
|
|
.Op Fl M Ar core
|
|
.Op Fl N Ar system
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
displays open file entry, swap space utilization,
|
|
terminal state, and vnode data structures.
|
|
If
|
|
.Ar corefile
|
|
is given, the information is sought there, otherwise
|
|
in
|
|
.Pa /dev/kmem .
|
|
The required namelist is taken from
|
|
.Pa /netbsd
|
|
unless
|
|
.Ar system
|
|
is specified.
|
|
.Pp
|
|
The following options are available:
|
|
.Bl -tag -width Ds
|
|
.It Fl T
|
|
Prints the number of used and free slots for open files, used vnodes, and swap
|
|
space. This option is useful for checking to see how large system tables
|
|
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 S
|
|
shared lock present
|
|
.It X
|
|
exclusive lock present
|
|
.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 k
|
|
Use 1K-byte blocks.
|
|
.It Fl n
|
|
Print devices by major/minor number rather than by name.
|
|
.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
|
|
Physical device name.
|
|
.It RAW
|
|
Number of characters in raw input queue.
|
|
.It CAN
|
|
Number of characters in canonicalized input queue.
|
|
.It OUT
|
|
Number of characters in output queue.
|
|
.It HWT
|
|
High water mark for output.
|
|
.It LWT
|
|
Low water mark for output.
|
|
.It COL
|
|
Calculated column position of terminal.
|
|
.It STATE
|
|
Miscellaneous state variables encoded thus:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It T
|
|
delay timeout in progress
|
|
.\" .It W
|
|
.\" waiting for open to complete
|
|
.It O
|
|
open
|
|
.It F
|
|
outq has been flushed during DMA
|
|
.It C
|
|
carrier is on
|
|
.It B
|
|
busy doing output
|
|
.It A
|
|
process is awaiting output
|
|
.It X
|
|
open for exclusive use
|
|
.It S
|
|
output stopped
|
|
.It K
|
|
further input blocked
|
|
.It Y
|
|
tty in async I/O mode
|
|
.It D
|
|
state for lowercase
|
|
.Ql \e
|
|
work
|
|
.It E
|
|
within a
|
|
.Ql \e.../
|
|
for PRTRUB
|
|
.It L
|
|
next character is literal
|
|
.It P
|
|
retyping suspended input
|
|
.Pq PENDIN
|
|
.It N
|
|
counting tab width, ignore FLUSHO
|
|
.It \&\*[Gt]
|
|
tty used for dialout
|
|
.El
|
|
.It SESS
|
|
Session for which this is controlling terminal.
|
|
.It PGID
|
|
Current foreground process group associated with this terminal.
|
|
.It DISC
|
|
Line discipline;
|
|
.Ql term
|
|
for
|
|
TTYDISC (see
|
|
.Xr termios 4 ) ,
|
|
.Ql tab
|
|
for TABLDISC (see
|
|
.Xr tb 4 ) ,
|
|
.Ql slip
|
|
for SLIPDISC (see
|
|
.Xr sl 4 ) ,
|
|
.Ql ppp
|
|
for PPPDISC (see
|
|
.Xr ppp 4 ) ,
|
|
.Ql strip
|
|
for STRIPDISC (see
|
|
.Xr strip 4 ) ,
|
|
.Ql hdlc
|
|
for HDLCDISC.
|
|
.El
|
|
.It Fl v
|
|
Print the active vnodes. Each group of vnodes corresponding
|
|
to a particular filesystem is preceded by a two line header. The
|
|
first line consists of the following:
|
|
.Pp
|
|
.Df I
|
|
.No *** MOUNT Em fstype from
|
|
on
|
|
.Em on fsflags
|
|
.De
|
|
.Pp
|
|
where
|
|
.Em fstype
|
|
is one of
|
|
.Em adosfs , afs , cd9660 , fdesc ,
|
|
.Em ffs , ext2fs , kernfs , lfs , lofs ,
|
|
.Em mfs , msdos , nfs , null ,
|
|
.Em portal , procfs , umap , union ;
|
|
.Em from
|
|
is the filesystem mounted from;
|
|
.Em on
|
|
is the directory
|
|
the filesystem is mounted on; and
|
|
.Em fsflags
|
|
is a list
|
|
of optional flags applied to the mount (see
|
|
.Xr mount 8 ) .
|
|
The second line is a header for the individual fields ,
|
|
the first part of which are fixed, and the second part are filesystem
|
|
type specific. The headers common to all vnodes are:
|
|
.Bl -tag -width indent
|
|
.It ADDR
|
|
Location of this vnode.
|
|
.It TYP
|
|
File type.
|
|
.It VFLAG
|
|
A list of letters representing vnode flags:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It R
|
|
VROOT root of its file system.
|
|
.It T
|
|
VTEXT pure text prototype.
|
|
.It S
|
|
VSYSTEM vnode being used by kernel.
|
|
.It I
|
|
VISTTY vnode is a tty.
|
|
.It E
|
|
VEXECMAP vnode has PROT_EXEC mappings.
|
|
.It L
|
|
VXLOCK locked to change underlying type.
|
|
.It W
|
|
VXWANT process is waiting for vnode.
|
|
.It B
|
|
VBWAIT waiting for output to complete.
|
|
.It A
|
|
VALIASED vnode has an alias.
|
|
.It D
|
|
VDIROP lfs vnode involved in directory op.
|
|
.It Y
|
|
VLAYER vnode is on layer filesystem.
|
|
.It O
|
|
VONWORKLST vnode is on syncer work-list.
|
|
.El
|
|
.Pp
|
|
.It USE
|
|
The number of references to this vnode.
|
|
.It HOLD
|
|
The number of I/O buffers held by this vnode.
|
|
.It TAG
|
|
The type of underlying data.
|
|
.It NPAGE
|
|
The number of pages in this vnode.
|
|
.It FILEID
|
|
The vnode fileid.
|
|
In the case of
|
|
.Em ffs
|
|
or
|
|
.Em ext2fs
|
|
this is the inode number.
|
|
.It IFLAG
|
|
Miscellaneous filesystem specific state variables encoded thus:
|
|
.Bl -tag -width indent
|
|
.It "For ffs, lfs or ext2fs:"
|
|
.Bl -tag -width indent -compact
|
|
.It A
|
|
access time must be corrected
|
|
.It C
|
|
changed time must be corrected
|
|
.It U
|
|
update time
|
|
.Pq Xr fs 5
|
|
must be corrected
|
|
.It M
|
|
contains modifications
|
|
.It a
|
|
has been accessed
|
|
.It R
|
|
has a rename in progress
|
|
.It S
|
|
shared lock applied
|
|
.It E
|
|
exclusive lock applied
|
|
.It c
|
|
is being cleaned (LFS)
|
|
.It a
|
|
directory operation in progress (LFS)
|
|
.It s
|
|
blocks to be freed in free count
|
|
.El
|
|
.It "For nfs:"
|
|
.Bl -tag -width indent -compact
|
|
.It W
|
|
waiting for I/O buffer flush to complete
|
|
.It P
|
|
I/O buffers being flushed
|
|
.It M
|
|
locally modified data exists
|
|
.It E
|
|
an earlier write failed
|
|
.It X
|
|
non-cacheable lease (nqnfs)
|
|
.It O
|
|
write lease (nqnfs)
|
|
.It G
|
|
lease was evicted (nqnfs)
|
|
.It A
|
|
special file accessed
|
|
.It U
|
|
special file updated
|
|
.It C
|
|
special file times changed
|
|
.El
|
|
.El
|
|
.It SIZ/RDEV
|
|
Number of bytes in an ordinary file, or
|
|
major and minor device of special file.
|
|
.El
|
|
.El
|
|
.Sh ENVIRONMENT
|
|
.Bl -tag -width BLOCKSIZE
|
|
.It Ev BLOCKSIZE
|
|
If the environment variable
|
|
.Ev BLOCKSIZE
|
|
is set, and the
|
|
.Fl k
|
|
option is not specified, the block counts will be displayed in units of that
|
|
size block.
|
|
.El
|
|
.Sh FILES
|
|
.Bl -tag -width /dev/kmemxxx -compact
|
|
.It Pa /netbsd
|
|
namelist
|
|
.It Pa /dev/kmem
|
|
default source of tables
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr ps 1 ,
|
|
.Xr systat 1 ,
|
|
.Xr vmstat 1 ,
|
|
.Xr stat 2 ,
|
|
.Xr fs 5 ,
|
|
.Xr iostat 8
|
|
.Rs
|
|
.Rt Tn UNIX Rt Implementation ,
|
|
.Ra K. Thompson
|
|
.Re
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
command appeared in
|
|
.Bx 4.0 .
|
|
.Sh BUGS
|
|
Swap statistics are reported for all swap partitions compiled into the kernel,
|
|
regardless of whether those partitions are being used.
|
|
.Pp
|
|
Does not understand NFS swap servers.
|