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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | NOTES | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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PCP-PIDSTAT(1) General Commands Manual PCP-PIDSTAT(1)
pcp-pidstat - Report statistics for Linux tasks.
pcp [pcp options] pidstat [-I] [-l] [-R] [-r] [-k] [-U
[username]] [-V] [-G processname] [-p pid1,pid2..] [-t interval]
[-s count] [-a archive] [-B state] [-f format] [-Z timezone] [-z]
[-?]
The pcp-pidstat command is used for monitoring individual tasks
running on the system. Using various options it helps a user to
see useful information related to the processes. This
information includes CPU percentage, memory and stack usage,
scheduling and priority. By default pcp-pidstat reports live
data for the local host.
When invoked via the pcp(1) command, the -h/--host, -a/--archive,
-O/--origin, -s/--samples, -t/--interval, -Z/--timezone and
several other pcp options become indirectly available; refer to
PCPIntro(1) for a complete description of these options.
The additional command line options available for pcp-pidstat
are:
-I In an SMP environment, indicates that tasks CPU usage should
be divided by the total number of processors.
-l Display the process command name and all its arguments.
-R Report real-time priority and scheduling policy information.
The following values may be displayed:
UID
The real user identification number of the task being
monitored.
USER
The name of the real user owning the task being
monitored.
PID
The identification number of the task being
monitored.
prio
The real-time priority of the task being monitored.
policy
The scheduling policy of the task being monitored.
Command
The command name of the task.
-r Report page faults and memory utilization. The following
values may be displayed:
UID
The real user identification number of the task being
monitored.
USER
The name of the real user owning the task being
monitored.
PID
The identification number of the task being
monitored.
minflt/s
Total number of minor faults the task has made per
second, those which have not required loading a memory page
from disk.
majflt/s
Total number of major faults the task has made per
second, those which have required loading a memory page from
disk.
VSZ
Virtual Size: The virtual memory usage of entire task
in kilobytes.
RSS
Resident Set Size: The non-swapped physical memory
used by the task in kilobytes.
%MEM
The tasks currently used share of available physical
memory.
Command
The command name of the task.
-k Report stack utilization. The following values may be
displayed:
UID
The real user identification number of the task being
monitored.
USER
The name of the real user owning the task being
monitored.
PID
The identification number of the task being monitored.
StkSize
The amount of memory in kilobytes reserved for the
task as stack, but not necessarily used.
StkRef
The amount of memory in kilobytes used as stack,
referenced by the task.
Command
The command name of the task.
-U [username], --user-name[=username]
Display the real user name of the tasks being monitored
instead of the UID. If username is specified, then only
tasks belonging to the specified user are displayed.
-V, --version
Print version number then exit.
-G processname, --process-name=processname
Display only processes whose command name includes the
string processname. This string can be a regular
expression.
-p pid1,pid2.., --pid-list=pid1,pid2..
Display only processes with the listed PIDs.
-t interval, --interval=interval
Set the interval between two samples. The default is one
second.
-s count, --samples=count
Set the number of samples to be displayed. Since the first
sample is used for the rate conversion of some of the
metrics, the total number of samples reported are one less
than count. The default is continuous.
-a archive, --archive=archive
Causes pcp-pidstat to use the specified archive than
connecting to PMCD. The argument to -a is a comma-separated
list of names, each of which may be the base name of an
archive or the name of a directory containing one or more
archives.
-B Report process states. The argument to -B is one of the
following:
detail
Show total time processes have spent in each of the 5
different states
all
Show total time processes spent in their current
state
[R,S,T,D,Z]
A comma separated list of process states. For
example, -B R,S will report processes currently in either R
or S states and not report processes currently in any other
states.
-f Use the format string for formatting the timestamp. The
format will be used with the python(1) datetime.strftime
method which is similar to that described in strftime(3).
An empty format string (i.e, "") will remove the timestamps
from the output. The default with stdout is %H:%M:%S.
-Z timezone, --timezone=timezone
By default, pcp-pidstat reports the time of day according to
the local timezone on the system where pcp-pidstat is run.
The -Z option changes the timezone to timezone in the format
of the environment variable TZ as described in environ(7).
-z , --hostzone
Change the reporting timezone to the local timezone at the
host that is the source of the performance metrics. When
replaying a PCP archive that was captured in a foreign
timezone, the -z option would almost always be used (the
default reporting timezone is the local timezone, which may
not be the same as the timezone of the PCP archive).
-? , --help
Display usage message and exit.
pcp-pidstat is inspired by the pidstat(1) command and aims to be
command line and output compatible with it.
Environment variables with the prefix PCP_ are used to
parameterize the file and directory names used by PCP. On each
installation, the file /etc/pcp.conf contains the local values
for these variables. The $PCP_CONF variable may be used to
specify an alternative configuration file, as described in
pcp.conf(5).
For environment variables affecting PCP tools, see
pmGetOptions(3).
PCPIntro(1), pcp(1), pidstat(1), python(1), pmParseInterval(3),
strftime(3) and environ(7).
This page is part of the PCP (Performance Co-Pilot) project.
Information about the project can be found at
⟨http://www.pcp.io/⟩. If you have a bug report for this manual
page, send it to pcp@groups.io. This page was obtained from the
project's upstream Git repository
⟨https://github.com/performancecopilot/pcp.git⟩ on 2024-06-14.
(At that time, the date of the most recent commit that was found
in the repository was 2024-06-14.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Performance Co-Pilot PCP PCP-PIDSTAT(1)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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