119 lines
3.7 KiB
Groff
119 lines
3.7 KiB
Groff
.\"-
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.\" Copyright (c) 2007 Robert N. M. Watson
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.\" All rights reserved.
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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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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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.\" $FreeBSD$
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.\"
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.Dd October 30, 2007
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.Dt PROCSTAT 1
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.Os
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.Sh NAME
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.Nm procstat
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.Nd get detailed process information
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.Sh SYNOPSIS
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.Nm
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.Op Fl h
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.Op Fl w Ar interval
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.Op Fl b | c | f | k | s | t | v
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.Op Fl a | Ar pid ...
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.Sh DESCRIPTION
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The
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.Nm
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utility displays detailed information about the processes identified by the
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.Ar pid
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arguments, or if the
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.Fl a
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flag is used, all processes.
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.Pp
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By default, basic process statistics are printed; one of the following
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options may be specified in order to select more detailed process information
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for printing:
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.Bl -tag -width indent
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.It Fl b
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Display binary information for the process.
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.It Fl c
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Display command line arguments for the process.
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.It Fl f
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Display file descriptor information for the process.
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.It Fl k
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Display the stacks of kernel threads in the process, excluding stacks of
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threads currently running on a CPU and threads with stacks swapped to disk.
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If the flag is repeated, function offsets as well as function names are
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printed.
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This feature requires
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.Cd "options STACK"
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or
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.Cd "options DDB"
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to be compiled into the kernel.
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.It Fl s
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Display security credential information for the process.
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.It Fl t
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Display thread information for the process.
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.It Fl v
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Display virtual memory mappings for the process.
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.El
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.Pp
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All options generate output in the format of a table, the first field of
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which is the process ID to which the row of information corresponds.
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The
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.Fl h
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flag may be used to suppress table headers.
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.Pp
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The
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.Fl w
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flag may be used to specify a wait interval at which to repeat the printing
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of the requested process information.
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If the
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.Fl w
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flag is not specified, the output will not repeat.
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.Pp
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Some information, such as VM and file descriptor information, is available
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only to the owner of a process or the superuser.
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.Sh EXIT STATUS
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.Ex -std
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.Sh SEE ALSO
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.Xr fstat 1 ,
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.Xr ps 1 ,
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.Xr sockstat 1 ,
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.Xr DDB 4 ,
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.Xr stack 9
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.Sh AUTHORS
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.An Robert N M Watson
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.Sh BUGS
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Some field values may include spaces, which limits the extent to which the
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output of
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.Nm
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may be mechanically parsed.
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.Pp
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The display of open file or memory mapping pathnames is implemented using the
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kernel's name cache.
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It therefore does not work for file systems
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that do not use the name cache, such as
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.Xr devfs 4 ,
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or if the name is not present in the cache due to removal.
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.Pp
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.Nm
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currently supports extracting data only from a live kernel, and not from
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kernel crash dumps.
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