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1.\"-
2.\" Copyright (c) 2007-2009 Robert N. M. Watson
3.\" All rights reserved.
4.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright
9.\" notice, this list of conditions and the following disclaimer.
10.\" 2. Redistributions in binary form must reproduce the above copyright
11.\" notice, this list of conditions and the following disclaimer in the
12.\" documentation and/or other materials provided with the distribution.
13.\"
14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24.\" SUCH DAMAGE.
25.\"
26.\" $FreeBSD: head/usr.bin/procstat/procstat.1 227838 2011-11-22 20:59:52Z trociny $
27.\"
28.Dd November 22, 2011
29.Dt PROCSTAT 1
30.Os
31.Sh NAME
32.Nm procstat
33.Nd get detailed process information
34.Sh SYNOPSIS
35.Nm
36.Op Fl h
37.Op Fl n
38.Op Fl C
39.Op Fl w Ar interval
40.Op Fl b | c | f | i | j | k | s | t | v
41.Op Fl a | Ar pid ...
42.Sh DESCRIPTION
43The
44.Nm
45utility displays detailed information about the processes identified by the
46.Ar pid
47arguments, or if the
48.Fl a
49flag is used, all processes.
50.Pp
51By default, basic process statistics are printed; one of the following
52options may be specified in order to select more detailed process information
53for printing:
54.Bl -tag -width indent
55.It Fl b
56Display binary information for the process.
57.It Fl c
58Display command line arguments for the process.
59.It Fl e
60Display environment variables for the process.
61.It Fl f
62Display file descriptor information for the process.
63.It Fl i
64Display signal pending and disposition information for the process.
65.It Fl j
66Display signal pending and blocked information for the process threads.
67.It Fl k
68Display the stacks of kernel threads in the process, excluding stacks of
69threads currently running on a CPU and threads with stacks swapped to disk.
70If the flag is repeated, function offsets as well as function names are
71printed.
72.It Fl s
73Display security credential information for the process.
74.It Fl t
75Display thread information for the process.
76.It Fl v
77Display virtual memory mappings for the process.
78.It Fl x
79Display ELF auxiliary vector for the process.
80.El
81.Pp
82All options generate output in the format of a table, the first field of
83which is the process ID to which the row of information corresponds.
84The
85.Fl h
86flag may be used to suppress table headers.
87.Pp
88The
89.Fl w
90flag may be used to specify a wait interval at which to repeat the printing
91of the requested process information.
92If the
93.Fl w
94flag is not specified, the output will not repeat.
95.Pp
96The
97.Fl C
98flag requests the printing of additional capability information in the file
99descriptor view.
100.Pp
101Some information, such as VM and file descriptor information, is available
102only to the owner of a process or the superuser.
103.Ss Binary Information
104Display the process ID, command, and path to the process binary:
105.Pp
106.Bl -tag -width indent -compact
107.It PID
108process ID
109.It COMM
110command
111.It PATH
112path to process binary (if available)
113.El
114.Ss Command Line Arguments
115Display the process ID, command, and command line arguments:
116.Pp
117.Bl -tag -width indent -compact
118.It PID
119process ID
120.It COMM
121command
122.It ARGS
123command line arguments (if available)
124.El
125.Ss File Descriptors
126Display detailed information about each file descriptor referenced by a
127process, including the process ID, command, file descriptor number, and
128per-file descriptor object information, such as object type and file system
129path.
130By default, the following information will be printed:
131.Pp
132.Bl -tag -width indent -compact
133.It PID
134process ID
135.It COMM
136command
137.It FD
138file descriptor number or cwd/root/jail
139.It T
140file descriptor type
141.It V
142vnode type
143.It FLAGS
144file descriptor flags
145.It REF
146file descriptor reference count
147.It OFFSET
148file descriptor offset
149.It PRO
150network protocol
151.It NAME
152file path or socket addresses (if available)
153.El
154.Pp
155The following file descriptor types may be displayed:
156.Pp
157.Bl -tag -width X -compact
158.It c
159crypto
160.It e
161POSIX semaphore
162.It f
163fifo
164.It h
165shared memory
166.It k
167kqueue
168.It m
169message queue
170.It p
171pipe
172.It s
173socket
174.It t
175pseudo-terminal master
176.It v
177vnode
178.El
179.Pp
180The following vnode types may be displayed:
181.Pp
182.Bl -tag -width X -compact
183.It -
184not a vnode
185.It b
186block device
187.It c
188character device
189.It d
190directory
191.It f
192fifo
193.It l
194symbolic link
195.It r
196regular file
197.It s
198socket
199.It x
200revoked device
201.El
202.Pp
203The following file descriptor flags may be displayed:
204.Pp
205.Bl -tag -width X -compact
206.It r
207read
208.It w
209write
210.It a
211append
212.It s
213async
214.It f
215fsync
216.It n
217non-blocking
218.It d
219direct I/O
220.It l
221lock held
222.It c
223descriptor is a capability
224.El
225.Pp
226If the
227.Fl C
228flag is specified, the vnode type, reference count, and offset fields will be
229omitted, and a new capabilities field will be included listing capabilities,
230as described in
231.Xr cap_new 2 ,
232present for each capability descriptor.
233.Ss Signal Disposition Information
234Display signal pending and disposition for a process:
235.Pp
236.Bl -tag -width ident -compact
237.It PID
238process ID
239.It COMM
240command
241.It SIG
242signal name
243.It FLAGS
244process signal disposition details, three symbols
245.Bl -tag -width X -compact
246.It P
247if signal is pending in the global process queue, - otherwise
248.It I
249if signal delivery disposition is SIGIGN, - otherwise
250.It C
251if signal delivery is to catch it, - otherwise
252.El
253.El
254.Pp
255If
256.Fl n
257switch is given, the signal numbers are shown instead of signal names.
258.Ss Thread Signal Information
259Display signal pending and blocked for a process threads:
260.Pp
261.Bl -tag -width ident -compact
262.It PID
263process ID
264.It COMM
265command
266.It TID
267thread ID
268.It SIG
269signal name
270.It FLAGS
271thread signal delivery status, two symbols
272.Bl -tag -width X -compact
273.It P
274if signal is pending for the thread, - otherwise
275.It B
276if signal is blocked in the thread signal mask, - if not blocked
277.El
278.El
279.Pp
280The
281.Fl n
282switch has the same effect as for the
283.Fl i
284switch, the signals numbers are shown instead of signal names.
285.Ss Kernel Thread Stacks
286Display kernel thread stacks for a process, allowing further interpretation
287of thread wait channels.
288If the
289.Fl k
290flag is repeated, function offsets, not just function names, are printed.
291.Pp
292This feature requires
293.Cd "options STACK"
294or
295.Cd "options DDB"
296to be compiled into the kernel.
297.Pp
298.Bl -tag -width indent -compact
299.It PID
300process ID
301.It TID
302thread ID
303.It COMM
304command
305.It TDNAME
306thread name
307.It KSTACK
308kernel thread call stack
309.El
310.Ss Security Credentials
311Display process credential information:
312.Pp
313.Bl -tag -width indent -compact
314.It PID
315process ID
316.It COMM
317command
318.It EUID
319effective user ID
320.It RUID
321real user ID
322.It SVUID
323saved user ID
324.It EGID
325effective group ID
326.It RGID
327real group ID
328.It SVGID
329saved group ID
330.It FLAGS
331credential flags
332.It GROUPS
333group set
334.El
335.Pp
336The following credential flags may be displayed:
337.Pp
338.Bl -tag -width X -compact
339.It C
340capability mode
341.El
342.Ss Thread Information
343Display per-thread information, including process ID, per-thread ID, name,
344CPU, and execution state:
345.Pp
346.Bl -tag -width indent -compact
347.It PID
348process ID
349.It TID
350thread ID
351.It COMM
352command
353.It TDNAME
354thread name
355.It CPU
356current or most recent CPU run on
357.It PRI
358thread priority
359.It STATE
360thread state
361.It WCHAN
362thread wait channel
363.El
364.Ss Virtual Memory Mappings
365Display process virtual memory mappings, including addresses, mapping
366meta-data, and mapped object information:
367.Pp
368.Bl -tag -width indent -compact
369.It PID
370process ID
371.It START
372starting address of mapping
373.It END
374ending address of mapping
375.It PRT
376protection flags
377.It RES
378resident pages
379.It PRES
380private resident pages
381.It REF
382reference count
383.It SHD
384shadow page count
385.It FL
386mapping flags
387.It TP
388VM object type
389.El
390.Pp
391The following protection flags may be displayed:
392.Pp
393.Bl -tag -width X -compact
394.It r
395read
396.It w
397write
398.It x
399execute
400.El
401.Pp
402The following VM object types may be displayed:
403.Pp
404.Bl -tag -width XX -compact
405.It --
406none
407.It dd
408dead
409.It df
410default
411.It dv
412device
413.It ph
414physical
415.It sw
416swap
417.It vn
418vnode
419.El
420.Pp
421The following mapping flags may be displayed:
422.Pp
423.Bl -tag -width X -compact
424.It C
425copy-on-write
426.It N
427needs copy
428.It S
429one or more superpage mappings are used
430.El
431.Sh EXIT STATUS
432.Ex -std
433.Sh SEE ALSO
434.Xr fstat 1 ,
435.Xr ps 1 ,
436.Xr sockstat 1 ,
437.Xr cap_enter 2 ,
438.Xr cap_new 2 ,
439.Xr ddb 4 ,
440.Xr stack 9
441.Sh AUTHORS
442.An Robert N M Watson
443.Sh BUGS
444Some field values may include spaces, which limits the extent to which the
445output of
446.Nm
447may be mechanically parsed.
448.Pp
449The display of open file or memory mapping pathnames is implemented using the
450kernel's name cache.
451If a file system does not use the name cache, or the path to a file is not in
452the cache, a path will not be displayed.
453.Pp
454.Nm
455currently supports extracting data only from a live kernel, and not from
456kernel crash dumps.