summaryrefslogtreecommitdiffstats
path: root/bin/ps/ps.1
blob: 3d7c7382cab62c89dcbed3158e7b7a128b5d801e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
.\"-
.\" Copyright (c) 1980, 1990, 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.
.\" 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.
.\"
.\"     @(#)ps.1	8.3 (Berkeley) 4/18/94
.\" $FreeBSD$
.\"
.Dd December 1, 2015
.Dt PS 1
.Os
.Sh NAME
.Nm ps
.Nd process status
.Sh SYNOPSIS
.Nm
.Op Fl -libxo
.Op Fl aCcdefHhjlmrSTuvwXxZ
.Op Fl O Ar fmt | Fl o Ar fmt
.Op Fl G Ar gid Ns Op , Ns Ar gid Ns Ar ...
.Op Fl J Ar jid Ns Op , Ns Ar jid Ns Ar ...
.Op Fl M Ar core
.Op Fl N Ar system
.Op Fl p Ar pid Ns Op , Ns Ar pid Ns Ar ...
.Op Fl t Ar tty Ns Op , Ns Ar tty Ns Ar ...
.Op Fl U Ar user Ns Op , Ns Ar user Ns Ar ...
.Nm
.Op Fl -libxo
.Op Fl L
.Sh DESCRIPTION
The
.Nm
utility
displays a header line, followed by lines containing information about
all of your
processes that have controlling terminals.
If the
.Fl x
options is specified,
.Nm
will also display processes that do not have controlling terminals.
.Pp
A different set of processes can be selected for display by using any
combination of the
.Fl a , G , J , p , T , t ,
and
.Fl U
options.
If more than one of these options are given, then
.Nm
will select all processes which are matched by at least one of the
given options.
.Pp
For the processes which have been selected for display,
.Nm
will usually display one line per process.
The
.Fl H
option may result in multiple output lines (one line per thread) for
some processes.
By default all of these output lines are sorted first by controlling
terminal, then by process ID.
The
.Fl m , r , u ,
and
.Fl v
options will change the sort order.
If more than one sorting option was given, then the selected processes
will be sorted by the last sorting option which was specified.
.Pp
For the processes which have been selected for display, the information
to display is selected based on a set of keywords (see the
.Fl L , O ,
and
.Fl o
options).
The default output format includes, for each process, the process' ID,
controlling terminal, state, CPU time (including both user and system time)
and associated command.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl -libxo
Generate output via
.Xr libxo 3
in a selection of different human and machine readable formats.
See
.Xr xo_parse_args 3
for details on command line arguments.
.It Fl a
Display information about other users' processes as well as your own.
If the
.Va security.bsd.see_other_uids
sysctl is set to zero, this option is honored only if the UID of the user is 0.
.It Fl c
Change the
.Dq command
column output to just contain the executable name,
rather than the full command line.
.It Fl C
Change the way the CPU percentage is calculated by using a
.Dq raw
CPU calculation that ignores
.Dq resident
time (this normally has
no effect).
.It Fl d
Arrange processes into descendancy order and prefix each command with
indentation text showing sibling and parent/child relationships.
If either of the
.Fl m
and
.Fl r
options are also used, they control how sibling processes are sorted
relative to each other.
Note that this option has no effect if the
.Dq command
column is not the last column displayed.
.It Fl e
Display the environment as well.
.It Fl f
Show command-line and environment information about swapped out processes.
This option is honored only if the UID of the user is 0.
.It Fl G
Display information about processes which are running with the specified
real group IDs.
.It Fl H
Show all of the
.Em kernel visible
threads associated with each process.
Depending on the threading package that
is in use, this may show only the process, only the kernel scheduled entities,
or all of the process threads.
.It Fl h
Repeat the information header as often as necessary to guarantee one
header per page of information.
.It Fl j
Print information associated with the following keywords:
.Cm user , pid , ppid , pgid , sid , jobc , state , tt , time ,
and
.Cm command .
.It Fl J
Display information about processes which match the specified jail IDs.
This may be either the
.Cm jid
or
.Cm name
of the jail.
Use
.Fl J
.Sy 0
to display only host processes.
This flag implies
.Fl x
by default.
.It Fl L
List the set of keywords available for the
.Fl O
and
.Fl o
options.
.It Fl l
Display information associated with the following keywords:
.Cm uid , pid , ppid , cpu , pri , nice , vsz , rss , mwchan , state ,
.Cm tt , time ,
and
.Cm command .
.It Fl M
Extract values associated with the name list from the specified core
instead of the currently running system.
.It Fl m
Sort by memory usage, instead of the combination of controlling
terminal and process ID.
.It Fl N
Extract the name list from the specified system instead of the default,
which is the kernel image the system has booted from.
.It Fl O
Add the information associated with the space or comma separated list
of keywords specified, after the process ID,
in the default information
display.
Keywords may be appended with an equals
.Pq Ql =
sign and a string.
This causes the printed header to use the specified string instead of
the standard header.
.It Fl o
Display information associated with the space or comma separated
list of keywords specified.
The last keyword in the list may be appended with an equals
.Pq Ql =
sign and a string that spans the rest of the argument, and can contain
space and comma characters.
This causes the printed header to use the specified string instead of
the standard header.
Multiple keywords may also be given in the form of more than one
.Fl o
option.
So the header texts for multiple keywords can be changed.
If all keywords have empty header texts, no header line is written.
.It Fl p
Display information about processes which match the specified process IDs.
.It Fl r
Sort by current CPU usage, instead of the combination of controlling
terminal and process ID.
.It Fl S
Change the way the process times, namely cputime, systime, and usertime,
are calculated by summing all exited children to their parent process.
.It Fl T
Display information about processes attached to the device associated
with the standard input.
.It Fl t
Display information about processes attached to the specified terminal
devices.
Full pathnames, as well as abbreviations (see explanation of the
.Cm tt
keyword) can be specified.
.It Fl U
Display the processes belonging to the specified usernames.
.It Fl u
Display information associated with the following keywords:
.Cm user , pid , %cpu , %mem , vsz , rss , tt , state , start , time ,
and
.Cm command .
The
.Fl u
option implies the
.Fl r
option.
.It Fl v
Display information associated with the following keywords:
.Cm pid , state , time , sl , re , pagein , vsz , rss , lim , tsiz ,
.Cm %cpu , %mem ,
and
.Cm command .
The
.Fl v
option implies the
.Fl m
option.
.It Fl w
Use 132 columns to display information, instead of the default which
is your window size.
If the
.Fl w
option is specified more than once,
.Nm
will use as many columns as necessary without regard for your window size.
Note that this option has no effect if the
.Dq command
column is not the last column displayed.
.It Fl X
When displaying processes matched by other options, skip any processes
which do not have a controlling terminal.
This is the default behaviour.
.It Fl x
When displaying processes matched by other options, include processes
which do not have a controlling terminal.
This is the opposite of the
.Fl X
option.
If both
.Fl X
and
.Fl x
are specified in the same command, then
.Nm
will use the one which was specified last.
.It Fl Z
Add
.Xr mac 4
label to the list of keywords for which
.Nm
will display information.
.El
.Pp
A complete list of the available keywords are listed below.
Some of these keywords are further specified as follows:
.Bl -tag -width lockname
.It Cm %cpu
The CPU utilization of the process; this is a decaying average over up to
a minute of previous (real) time.
Since the time base over which this is computed varies (since processes may
be very young) it is possible for the sum of all
.Cm %cpu
fields to exceed 100%.
.It Cm %mem
The percentage of real memory used by this process.
.It Cm class
Login class associated with the process.
.It Cm flags
The flags associated with the process as in
the include file
.In sys/proc.h :
.Bl -column P_SINGLE_BOUNDARY 0x40000000
.It Dv "P_ADVLOCK" Ta No "0x00001" Ta "Process may hold a POSIX advisory lock"
.It Dv "P_CONTROLT" Ta No "0x00002" Ta "Has a controlling terminal"
.It Dv "P_KPROC" Ta No "0x00004" Ta "Kernel process"
.It Dv "P_FOLLOWFORK" Ta No "0x00008" Ta "Attach debugger to new children"
.It Dv "P_PPWAIT" Ta No "0x00010" Ta "Parent is waiting for child to exec/exit"
.It Dv "P_PROFIL" Ta No "0x00020" Ta "Has started profiling"
.It Dv "P_STOPPROF" Ta No "0x00040" Ta "Has thread in requesting to stop prof"
.It Dv "P_HADTHREADS" Ta No "0x00080" Ta "Has had threads (no cleanup shortcuts)"
.It Dv "P_SUGID" Ta No "0x00100" Ta "Had set id privileges since last exec"
.It Dv "P_SYSTEM" Ta No "0x00200" Ta "System proc: no sigs, stats or swapping"
.It Dv "P_SINGLE_EXIT" Ta No "0x00400" Ta "Threads suspending should exit, not wait"
.It Dv "P_TRACED" Ta No "0x00800" Ta "Debugged process being traced"
.It Dv "P_WAITED" Ta No "0x01000" Ta "Someone is waiting for us"
.It Dv "P_WEXIT" Ta No "0x02000" Ta "Working on exiting"
.It Dv "P_EXEC" Ta No "0x04000" Ta "Process called exec"
.It Dv "P_WKILLED" Ta No "0x08000" Ta "Killed, shall go to kernel/user boundary ASAP"
.It Dv "P_CONTINUED" Ta No "0x10000" Ta "Proc has continued from a stopped state"
.It Dv "P_STOPPED_SIG" Ta No "0x20000" Ta "Stopped due to SIGSTOP/SIGTSTP"
.It Dv "P_STOPPED_TRACE" Ta No "0x40000" Ta "Stopped because of tracing"
.It Dv "P_STOPPED_SINGLE" Ta No "0x80000" Ta "Only one thread can continue"
.It Dv "P_PROTECTED" Ta No "0x100000" Ta "Do not kill on memory overcommit"
.It Dv "P_SIGEVENT" Ta No "0x200000" Ta "Process pending signals changed"
.It Dv "P_SINGLE_BOUNDARY" Ta No "0x400000" Ta "Threads should suspend at user boundary"
.It Dv "P_HWPMC" Ta No "0x800000" Ta "Process is using HWPMCs"
.It Dv "P_JAILED" Ta No "0x1000000" Ta "Process is in jail"
.It Dv "P_TOTAL_STOP" Ta No "0x2000000" Ta "Stopped for system suspend"
.It Dv "P_INEXEC" Ta No "0x4000000" Ta "Process is in execve()"
.It Dv "P_STATCHILD" Ta No "0x8000000" Ta "Child process stopped or exited"
.It Dv "P_INMEM" Ta No "0x10000000" Ta "Loaded into memory"
.It Dv "P_SWAPPINGOUT" Ta No "0x20000000" Ta "Process is being swapped out"
.It Dv "P_SWAPPINGIN" Ta No "0x40000000" Ta "Process is being swapped in"
.It Dv "P_PPTRACE" Ta No "0x80000000" Ta "Vforked child issued ptrace(PT_TRACEME)"
.El
.It Cm flags2
The flags kept in
.Va p_flag2
associated with the process as in
the include file
.In sys/proc.h :
.Bl -column P2_INHERIT_PROTECTED 0x00000001
.It Dv "P2_INHERIT_PROTECTED" Ta No "0x00000001" Ta "New children get P_PROTECTED"
.It Dv "P2_NOTRACE" Ta No "0x00000002" Ta "No ptrace(2) attach or coredumps"
.It Dv "P2_NOTRACE_EXEC" Ta No "0x00000004" Ta "Keep P2_NOPTRACE on exec(2)"
.It Dv "P2_AST_SU" Ta No "0x00000008" Ta "Handles SU ast for kthreads"
.El
.It Cm label
The MAC label of the process.
.It Cm lim
The soft limit on memory used, specified via a call to
.Xr setrlimit 2 .
.It Cm lstart
The exact time the command started, using the
.Ql %c
format described in
.Xr strftime 3 .
.It Cm lockname
The name of the lock that the process is currently blocked on.
If the name is invalid or unknown, then
.Dq ???\&
is displayed.
.It Cm logname
The login name associated with the session the process is in (see
.Xr getlogin 2 ) .
.It Cm mwchan
The event name if the process is blocked normally, or the lock name if
the process is blocked on a lock.
See the wchan and lockname keywords
for details.
.It Cm nice
The process scheduling increment (see
.Xr setpriority 2 ) .
.It Cm rss
the real memory (resident set) size of the process (in 1024 byte units).
.It Cm start
The time the command started.
If the command started less than 24 hours ago, the start time is
displayed using the
.Dq Li %H:%M
format described in
.Xr strftime 3 .
If the command started less than 7 days ago, the start time is
displayed using the
.Dq Li %a%H
format.
Otherwise, the start time is displayed using the
.Dq Li %e%b%y
format.
.It Cm state
The state is given by a sequence of characters, for example,
.Dq Li RWNA .
The first character indicates the run state of the process:
.Pp
.Bl -tag -width indent -compact
.It Li D
Marks a process in disk (or other short term, uninterruptible) wait.
.It Li I
Marks a process that is idle (sleeping for longer than about 20 seconds).
.It Li L
Marks a process that is waiting to acquire a lock.
.It Li R
Marks a runnable process.
.It Li S
Marks a process that is sleeping for less than about 20 seconds.
.It Li T
Marks a stopped process.
.It Li W
Marks an idle interrupt thread.
.It Li Z
Marks a dead process (a
.Dq zombie ) .
.El
.Pp
Additional characters after these, if any, indicate additional state
information:
.Pp
.Bl -tag -width indent -compact
.It Li +
The process is in the foreground process group of its control terminal.
.It Li <
The process has raised CPU scheduling priority.
.It Li E
The process is trying to exit.
.It Li J
Marks a process which is in
.Xr jail 2 .
The hostname of the prison can be found in
.Pa /proc/ Ns Ao Ar pid Ac Ns Pa /status .
.It Li L
The process has pages locked in core (for example, for raw
.Tn I/O ) .
.It Li N
The process has reduced CPU scheduling priority (see
.Xr setpriority 2 ) .
.It Li s
The process is a session leader.
.It Li V
The process' parent is suspended during a
.Xr vfork 2 ,
waiting for the process to exec or exit.
.It Li W
The process is swapped out.
.It Li X
The process is being traced or debugged.
.El
.It Cm tt
An abbreviation for the pathname of the controlling terminal, if any.
The abbreviation consists of the three letters following
.Pa /dev/tty ,
or, for pseudo-terminals, the corresponding entry in
.Pa /dev/pts .
This is followed by a
.Ql -
if the process can no longer reach that
controlling terminal (i.e., it has been revoked).
A
.Ql -
without a preceding two letter abbreviation or pseudo-terminal device number
indicates a process which never had a controlling terminal.
The full pathname of the controlling terminal is available via the
.Cm tty
keyword.
.It Cm wchan
The event (an address in the system) on which a process waits.
When printed numerically, the initial part of the address is
trimmed off and the result is printed in hex, for example, 0x80324000 prints
as 324000.
.El
.Pp
When printing using the command keyword, a process that has exited and
has a parent that has not yet waited for the process (in other words, a zombie)
is listed as
.Dq Li <defunct> ,
and a process which is blocked while trying
to exit is listed as
.Dq Li <exiting> .
If the arguments cannot be located (usually because it has not been set, as is
the case of system processes and/or kernel threads) the command name is printed
within square brackets.
The
.Nm
utility first tries to obtain the arguments cached by the kernel (if they were
shorter than the value of the
.Va kern.ps_arg_cache_limit
sysctl).
The process can change the arguments shown with
.Xr setproctitle 3 .
Otherwise,
.Nm
makes an educated guess as to the file name and arguments given when the
process was created by examining memory or the swap area.
The method is inherently somewhat unreliable and in any event a process
is entitled to destroy this information.
The ucomm (accounting) keyword can, however, be depended on.
If the arguments are unavailable or do not agree with the ucomm keyword,
the value for the ucomm keyword is appended to the arguments in parentheses.
.Sh KEYWORDS
The following is a complete list of the available keywords and their
meanings.
Several of them have aliases (keywords which are synonyms).
.Pp
.Bl -tag -width ".Cm sigignore" -compact
.It Cm %cpu
percentage CPU usage (alias
.Cm pcpu )
.It Cm %mem
percentage memory usage (alias
.Cm pmem )
.It Cm acflag
accounting flag (alias
.Cm acflg )
.It Cm args
command and arguments
.It Cm class
login class
.It Cm comm
command
.It Cm command
command and arguments
.It Cm cow
number of copy-on-write faults
.It Cm cpu
short-term CPU usage factor (for scheduling)
.It Cm dsiz
data size (in Kbytes)
.It Cm emul
system-call emulation environment
.It Cm etime
elapsed running time, format
.Op days- Ns
.Op hours: Ns
minutes:seconds.
.It Cm etimes
elapsed running time, in decimal integer seconds
.It Cm fib
default FIB number, see
.Xr setfib 1
.It Cm flags
the process flags, in hexadecimal (alias
.Cm f )
.It Cm flags2
the additional set of process flags, in hexadecimal (alias
.Cm f2 )
.It Cm gid
effective group ID (alias
.Cm egid )
.It Cm group
group name (from egid) (alias
.Cm egroup )
.It Cm inblk
total blocks read (alias
.Cm inblock )
.It Cm jid
jail ID
.It Cm jobc
job control count
.It Cm ktrace
tracing flags
.It Cm label
MAC label
.It Cm lim
memoryuse limit
.It Cm lockname
lock currently blocked on (as a symbolic name)
.It Cm logname
login name of user who started the session
.It Cm lstart
time started
.It Cm lwp
process thread-id
.It Cm majflt
total page faults
.It Cm minflt
total page reclaims
.It Cm msgrcv
total messages received (reads from pipes/sockets)
.It Cm msgsnd
total messages sent (writes on pipes/sockets)
.It Cm mwchan
wait channel or lock currently blocked on
.It Cm nice
nice value (alias
.Cm ni )
.It Cm nivcsw
total involuntary context switches
.It Cm nlwp
number of threads tied to a process
.It Cm nsigs
total signals taken (alias
.Cm nsignals )
.It Cm nswap
total swaps in/out
.It Cm nvcsw
total voluntary context switches
.It Cm nwchan
wait channel (as an address)
.It Cm oublk
total blocks written (alias
.Cm oublock )
.It Cm paddr
process pointer
.It Cm pagein
pageins (same as majflt)
.It Cm pgid
process group number
.It Cm pid
process ID
.It Cm ppid
parent process ID
.It Cm pri
scheduling priority
.It Cm re
core residency time (in seconds; 127 = infinity)
.It Cm rgid
real group ID
.It Cm rgroup
group name (from rgid)
.It Cm rss
resident set size
.It Cm rtprio
realtime priority (101 = not a realtime process)
.It Cm ruid
real user ID
.It Cm ruser
user name (from ruid)
.It Cm sid
session ID
.It Cm sig
pending signals (alias
.Cm pending )
.It Cm sigcatch
caught signals (alias
.Cm caught )
.It Cm sigignore
ignored signals (alias
.Cm ignored )
.It Cm sigmask
blocked signals (alias
.Cm blocked )
.It Cm sl
sleep time (in seconds; 127 = infinity)
.It Cm ssiz
stack size (in Kbytes)
.It Cm start
time started
.It Cm state
symbolic process state (alias
.Cm stat )
.It Cm svgid
saved gid from a setgid executable
.It Cm svuid
saved UID from a setuid executable
.It Cm systime
accumulated system CPU time
.It Cm tdaddr
thread address
.It Cm tdev
control terminal device number
.It Cm time
accumulated CPU time, user + system (alias
.Cm cputime )
.It Cm tpgid
control terminal process group ID
.It Cm tracer
tracer process ID
.\".It Cm trss
.\"text resident set size (in Kbytes)
.It Cm tsid
control terminal session ID
.It Cm tsiz
text size (in Kbytes)
.It Cm tt
control terminal name (two letter abbreviation)
.It Cm tty
full name of control terminal
.It Cm ucomm
name to be used for accounting
.It Cm uid
effective user ID (alias
.Cm euid )
.It Cm upr
scheduling priority on return from system call (alias
.Cm usrpri )
.It Cm uprocp
process pointer
.It Cm user
user name (from UID)
.It Cm usertime
accumulated user CPU time
.It Cm vsz
virtual size in Kbytes (alias
.Cm vsize )
.It Cm wchan
wait channel (as a symbolic name)
.It Cm xstat
exit or stop status (valid only for stopped or zombie process)
.El
.Pp
Note that the
.Cm pending
column displays bitmask of signals pending in the process queue when
.Fl H
option is not specified, otherwise the per-thread queue of pending signals
is shown.
.Sh ENVIRONMENT
The following environment variables affect the execution of
.Nm :
.Bl -tag -width ".Ev COLUMNS"
.It Ev COLUMNS
If set, specifies the user's preferred output width in column positions.
By default,
.Nm
attempts to automatically determine the terminal width.
.El
.Sh FILES
.Bl -tag -width ".Pa /boot/kernel/kernel" -compact
.It Pa /boot/kernel/kernel
default system namelist
.El
.Sh EXAMPLES
Display information on all system processes:
.Pp
.Dl $ ps -auxw
.Sh SEE ALSO
.Xr kill 1 ,
.Xr pgrep 1 ,
.Xr pkill 1 ,
.Xr procstat 1 ,
.Xr w 1 ,
.Xr kvm 3 ,
.Xr libxo 3 ,
.Xr strftime 3 ,
.Xr xo_parse_args 3 ,
.Xr mac 4 ,
.Xr procfs 5 ,
.Xr pstat 8 ,
.Xr sysctl 8 ,
.Xr mutex 9
.Sh STANDARDS
For historical reasons, the
.Nm
utility under
.Fx
supports a different set of options from what is described by
.St -p1003.2 ,
and what is supported on
.No non- Ns Bx
operating systems.
.Sh HISTORY
The
.Nm
command appeared in
.At v4 .
.Sh BUGS
Since
.Nm
cannot run faster than the system and is run as any other scheduled
process, the information it displays can never be exact.
.Pp
The
.Nm
utility does not correctly display argument lists containing multibyte
characters.
OpenPOWER on IntegriCloud