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29 .\" @(#)ps.1 8.3 (Berkeley) 4/18/94
41 .Op Fl aCcdefHhjlmrSTuvwXxZ
42 .Op Fl O Ar fmt | Fl o Ar fmt
43 .Op Fl G Ar gid Ns Op , Ns Ar gid Ns Ar ...
44 .Op Fl J Ar jid Ns Op , Ns Ar jid Ns Ar ...
47 .Op Fl p Ar pid Ns Op , Ns Ar pid Ns Ar ...
48 .Op Fl t Ar tty Ns Op , Ns Ar tty Ns Ar ...
49 .Op Fl U Ar user Ns Op , Ns Ar user Ns Ar ...
57 displays a header line, followed by lines containing information about
59 processes that have controlling terminals.
64 will also display processes that do not have controlling terminals.
66 A different set of processes can be selected for display by using any
68 .Fl a , G , J , p , T , t ,
72 If more than one of these options are given, then
74 will select all processes which are matched by at least one of the
77 For the processes which have been selected for display,
79 will usually display one line per process.
82 option may result in multiple output lines (one line per thread) for
84 By default all of these output lines are sorted first by controlling
85 terminal, then by process ID.
90 options will change the sort order.
91 If more than one sorting option was given, then the selected processes
92 will be sorted by the last sorting option which was specified.
94 For the processes which have been selected for display, the information
95 to display is selected based on a set of keywords (see the
100 The default output format includes, for each process, the process' ID,
101 controlling terminal, state, CPU time (including both user and system time)
102 and associated command.
104 The options are as follows:
105 .Bl -tag -width indent
109 in a selection of different human and machine readable formats.
112 for details on command line arguments.
114 Display information about other users' processes as well as your own.
116 .Va security.bsd.see_other_uids
117 sysctl is set to zero, this option is honored only if the UID of the user is 0.
121 column output to just contain the executable name,
122 rather than the full command line.
124 Change the way the CPU percentage is calculated by using a
126 CPU calculation that ignores
128 time (this normally has
131 Arrange processes into descendancy order and prefix each command with
132 indentation text showing sibling and parent/child relationships.
137 options are also used, they control how sibling processes are sorted
138 relative to each other.
139 Note that this option has no effect if the
141 column is not the last column displayed.
143 Display the environment as well.
145 Show command-line and environment information about swapped out processes.
146 This option is honored only if the UID of the user is 0.
148 Display information about processes which are running with the specified
153 threads associated with each process.
154 Depending on the threading package that
155 is in use, this may show only the process, only the kernel scheduled entities,
156 or all of the process threads.
158 Repeat the information header as often as necessary to guarantee one
159 header per page of information.
161 Print information associated with the following keywords:
162 .Cm user , pid , ppid , pgid , sid , jobc , state , tt , time ,
166 Display information about processes which match the specified jail IDs.
167 This may be either the
175 to display only host processes.
180 List the set of keywords available for the
186 Display information associated with the following keywords:
187 .Cm uid , pid , ppid , cpu , pri , nice , vsz , rss , mwchan , state ,
192 Extract values associated with the name list from the specified core
193 instead of the currently running system.
195 Sort by memory usage, instead of the combination of controlling
196 terminal and process ID.
198 Extract the name list from the specified system instead of the default,
199 which is the kernel image the system has booted from.
201 Add the information associated with the space or comma separated list
202 of keywords specified, after the process ID,
203 in the default information
205 Keywords may be appended with an equals
208 This causes the printed header to use the specified string instead of
211 Display information associated with the space or comma separated
212 list of keywords specified.
213 The last keyword in the list may be appended with an equals
215 sign and a string that spans the rest of the argument, and can contain
216 space and comma characters.
217 This causes the printed header to use the specified string instead of
219 Multiple keywords may also be given in the form of more than one
222 So the header texts for multiple keywords can be changed.
223 If all keywords have empty header texts, no header line is written.
225 Display information about processes which match the specified process IDs.
227 Sort by current CPU usage, instead of the combination of controlling
228 terminal and process ID.
230 Change the way the process times, namely cputime, systime, and usertime,
231 are calculated by summing all exited children to their parent process.
233 Display information about processes attached to the device associated
234 with the standard input.
236 Display information about processes attached to the specified terminal
238 Full pathnames, as well as abbreviations (see explanation of the
240 keyword) can be specified.
242 Display the processes belonging to the specified usernames.
244 Display information associated with the following keywords:
245 .Cm user , pid , %cpu , %mem , vsz , rss , tt , state , start , time ,
254 Display information associated with the following keywords:
255 .Cm pid , state , time , sl , re , pagein , vsz , rss , lim , tsiz ,
265 Use 132 columns to display information, instead of the default which
269 option is specified more than once,
271 will use as many columns as necessary without regard for your window size.
272 Note that this option has no effect if the
274 column is not the last column displayed.
276 When displaying processes matched by other options, skip any processes
277 which do not have a controlling terminal.
278 This is the default behaviour.
280 When displaying processes matched by other options, include processes
281 which do not have a controlling terminal.
282 This is the opposite of the
289 are specified in the same command, then
291 will use the one which was specified last.
295 label to the list of keywords for which
297 will display information.
300 A complete list of the available keywords are listed below.
301 Some of these keywords are further specified as follows:
302 .Bl -tag -width lockname
304 The CPU utilization of the process; this is a decaying average over up to
305 a minute of previous (real) time.
306 Since the time base over which this is computed varies (since processes may
307 be very young) it is possible for the sum of all
309 fields to exceed 100%.
311 The percentage of real memory used by this process.
313 Login class associated with the process.
315 The flags associated with the process as in
318 .Bl -column P_SINGLE_BOUNDARY 0x40000000
319 .It Dv "P_ADVLOCK" Ta No "0x00001" Ta "Process may hold a POSIX advisory lock"
320 .It Dv "P_CONTROLT" Ta No "0x00002" Ta "Has a controlling terminal"
321 .It Dv "P_KPROC" Ta No "0x00004" Ta "Kernel process"
322 .It Dv "P_FOLLOWFORK" Ta No "0x00008" Ta "Attach debugger to new children"
323 .It Dv "P_PPWAIT" Ta No "0x00010" Ta "Parent is waiting for child to exec/exit"
324 .It Dv "P_PROFIL" Ta No "0x00020" Ta "Has started profiling"
325 .It Dv "P_STOPPROF" Ta No "0x00040" Ta "Has thread in requesting to stop prof"
326 .It Dv "P_HADTHREADS" Ta No "0x00080" Ta "Has had threads (no cleanup shortcuts)"
327 .It Dv "P_SUGID" Ta No "0x00100" Ta "Had set id privileges since last exec"
328 .It Dv "P_SYSTEM" Ta No "0x00200" Ta "System proc: no sigs, stats or swapping"
329 .It Dv "P_SINGLE_EXIT" Ta No "0x00400" Ta "Threads suspending should exit, not wait"
330 .It Dv "P_TRACED" Ta No "0x00800" Ta "Debugged process being traced"
331 .It Dv "P_WAITED" Ta No "0x01000" Ta "Someone is waiting for us"
332 .It Dv "P_WEXIT" Ta No "0x02000" Ta "Working on exiting"
333 .It Dv "P_EXEC" Ta No "0x04000" Ta "Process called exec"
334 .It Dv "P_WKILLED" Ta No "0x08000" Ta "Killed, shall go to kernel/user boundary ASAP"
335 .It Dv "P_CONTINUED" Ta No "0x10000" Ta "Proc has continued from a stopped state"
336 .It Dv "P_STOPPED_SIG" Ta No "0x20000" Ta "Stopped due to SIGSTOP/SIGTSTP"
337 .It Dv "P_STOPPED_TRACE" Ta No "0x40000" Ta "Stopped because of tracing"
338 .It Dv "P_STOPPED_SINGLE" Ta No "0x80000" Ta "Only one thread can continue"
339 .It Dv "P_PROTECTED" Ta No "0x100000" Ta "Do not kill on memory overcommit"
340 .It Dv "P_SIGEVENT" Ta No "0x200000" Ta "Process pending signals changed"
341 .It Dv "P_SINGLE_BOUNDARY" Ta No "0x400000" Ta "Threads should suspend at user boundary"
342 .It Dv "P_HWPMC" Ta No "0x800000" Ta "Process is using HWPMCs"
343 .It Dv "P_JAILED" Ta No "0x1000000" Ta "Process is in jail"
344 .It Dv "P_TOTAL_STOP" Ta No "0x2000000" Ta "Stopped for system suspend"
345 .It Dv "P_INEXEC" Ta No "0x4000000" Ta "Process is in execve()"
346 .It Dv "P_STATCHILD" Ta No "0x8000000" Ta "Child process stopped or exited"
347 .It Dv "P_INMEM" Ta No "0x10000000" Ta "Loaded into memory"
348 .It Dv "P_SWAPPINGOUT" Ta No "0x20000000" Ta "Process is being swapped out"
349 .It Dv "P_SWAPPINGIN" Ta No "0x40000000" Ta "Process is being swapped in"
350 .It Dv "P_PPTRACE" Ta No "0x80000000" Ta "Vforked child issued ptrace(PT_TRACEME)"
355 associated with the process as in
358 .Bl -column P2_INHERIT_PROTECTED 0x00000001
359 .It Dv "P2_INHERIT_PROTECTED" Ta No "0x00000001" Ta "New children get P_PROTECTED"
360 .It Dv "P2_NOTRACE" Ta No "0x00000002" Ta "No ptrace(2) attach or coredumps"
361 .It Dv "P2_NOTRACE_EXEC" Ta No "0x00000004" Ta "Keep P2_NOPTRACE on exec(2)"
362 .It Dv "P2_AST_SU" Ta No "0x00000008" Ta "Handles SU ast for kthreads"
363 .It Dv "P2_PTRACE_FSTP" Ta No "0x00000010" Ta "SIGSTOP from PT_ATTACH not yet handled"
366 The MAC label of the process.
368 The soft limit on memory used, specified via a call to
371 The exact time the command started, using the
376 The name of the lock that the process is currently blocked on.
377 If the name is invalid or unknown, then
381 The login name associated with the session the process is in (see
384 The event name if the process is blocked normally, or the lock name if
385 the process is blocked on a lock.
386 See the wchan and lockname keywords
389 The process scheduling increment (see
390 .Xr setpriority 2 ) .
392 the real memory (resident set) size of the process (in 1024 byte units).
394 The time the command started.
395 If the command started less than 24 hours ago, the start time is
400 If the command started less than 7 days ago, the start time is
404 Otherwise, the start time is displayed using the
408 The state is given by a sequence of characters, for example,
410 The first character indicates the run state of the process:
412 .Bl -tag -width indent -compact
414 Marks a process in disk (or other short term, uninterruptible) wait.
416 Marks a process that is idle (sleeping for longer than about 20 seconds).
418 Marks a process that is waiting to acquire a lock.
420 Marks a runnable process.
422 Marks a process that is sleeping for less than about 20 seconds.
424 Marks a stopped process.
426 Marks an idle interrupt thread.
428 Marks a dead process (a
432 Additional characters after these, if any, indicate additional state
435 .Bl -tag -width indent -compact
437 The process is in the foreground process group of its control terminal.
439 The process has raised CPU scheduling priority.
441 The process is trying to exit.
443 Marks a process which is in
445 The hostname of the prison can be found in
446 .Pa /proc/ Ns Ao Ar pid Ac Ns Pa /status .
448 The process has pages locked in core (for example, for raw
451 The process has reduced CPU scheduling priority (see
452 .Xr setpriority 2 ) .
454 The process is a session leader.
456 The process' parent is suspended during a
458 waiting for the process to exec or exit.
460 The process is swapped out.
462 The process is being traced or debugged.
465 An abbreviation for the pathname of the controlling terminal, if any.
466 The abbreviation consists of the three letters following
468 or, for pseudo-terminals, the corresponding entry in
470 This is followed by a
472 if the process can no longer reach that
473 controlling terminal (i.e., it has been revoked).
476 without a preceding two letter abbreviation or pseudo-terminal device number
477 indicates a process which never had a controlling terminal.
478 The full pathname of the controlling terminal is available via the
482 The event (an address in the system) on which a process waits.
483 When printed numerically, the initial part of the address is
484 trimmed off and the result is printed in hex, for example, 0x80324000 prints
488 When printing using the command keyword, a process that has exited and
489 has a parent that has not yet waited for the process (in other words, a zombie)
492 and a process which is blocked while trying
495 If the arguments cannot be located (usually because it has not been set, as is
496 the case of system processes and/or kernel threads) the command name is printed
497 within square brackets.
500 utility first tries to obtain the arguments cached by the kernel (if they were
501 shorter than the value of the
502 .Va kern.ps_arg_cache_limit
504 The process can change the arguments shown with
508 makes an educated guess as to the file name and arguments given when the
509 process was created by examining memory or the swap area.
510 The method is inherently somewhat unreliable and in any event a process
511 is entitled to destroy this information.
512 The ucomm (accounting) keyword can, however, be depended on.
513 If the arguments are unavailable or do not agree with the ucomm keyword,
514 the value for the ucomm keyword is appended to the arguments in parentheses.
516 The following is a complete list of the available keywords and their
518 Several of them have aliases (keywords which are synonyms).
520 .Bl -tag -width ".Cm sigignore" -compact
522 percentage CPU usage (alias
525 percentage memory usage (alias
528 accounting flag (alias
531 command and arguments
537 command and arguments
539 number of copy-on-write faults
541 short-term CPU usage factor (for scheduling)
543 data size (in Kbytes)
545 system-call emulation environment
547 elapsed running time, format
552 elapsed running time, in decimal integer seconds
554 default FIB number, see
557 the process flags, in hexadecimal (alias
560 the additional set of process flags, in hexadecimal (alias
563 effective group ID (alias
566 group name (from egid) (alias
569 total blocks read (alias
582 lock currently blocked on (as a symbolic name)
584 login name of user who started the session
594 total messages received (reads from pipes/sockets)
596 total messages sent (writes on pipes/sockets)
598 wait channel or lock currently blocked on
603 total involuntary context switches
605 number of threads tied to a process
607 total signals taken (alias
612 total voluntary context switches
614 wait channel (as an address)
616 total blocks written (alias
621 pageins (same as majflt)
631 core residency time (in seconds; 127 = infinity)
635 group name (from rgid)
639 realtime priority (101 = not a realtime process)
643 user name (from ruid)
647 pending signals (alias
650 caught signals (alias
653 ignored signals (alias
656 blocked signals (alias
659 sleep time (in seconds; 127 = infinity)
661 stack size (in Kbytes)
665 symbolic process state (alias
668 saved gid from a setgid executable
670 saved UID from a setuid executable
672 accumulated system CPU time
676 control terminal device number
678 accumulated CPU time, user + system (alias
681 control terminal process group ID
685 .\"text resident set size (in Kbytes)
687 control terminal session ID
689 text size (in Kbytes)
691 control terminal name (two letter abbreviation)
693 full name of control terminal
695 name to be used for accounting
697 effective user ID (alias
700 scheduling priority on return from system call (alias
707 accumulated user CPU time
709 virtual size in Kbytes (alias
712 wait channel (as a symbolic name)
714 exit or stop status (valid only for stopped or zombie process)
719 column displays bitmask of signals pending in the process queue when
721 option is not specified, otherwise the per-thread queue of pending signals
724 The following environment variables affect the execution of
726 .Bl -tag -width ".Ev COLUMNS"
728 If set, specifies the user's preferred output width in column positions.
731 attempts to automatically determine the terminal width.
734 .Bl -tag -width ".Pa /boot/kernel/kernel" -compact
735 .It Pa /boot/kernel/kernel
736 default system namelist
739 Display information on all system processes:
751 .Xr xo_parse_args 3 ,
758 For historical reasons, the
762 supports a different set of options from what is described by
764 and what is supported on
775 cannot run faster than the system and is run as any other scheduled
776 process, the information it displays can never be exact.
780 utility does not correctly display argument lists containing multibyte