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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | NOTES | ENVIRONMENT | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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PCP-MPSTAT(1) General Commands Manual PCP-MPSTAT(1)
pcp-mpstat - Report CPU and interrupt related statistics.
pcp [pcp options] mpstat [ -A ] [ -u ] [ -V ] [ -I { SUM | CPU |
SCPU | ALL } ] [ -P { cpu1,cpu2 [,...] | ON | ALL } ] [ -t
interval ] [ -s count ] [ -a archive ] [ -? ]
pcp-mpstat command writes to standard output activities for each
available processor, processor 0 being the first one. If no
activity/option has been selected, then the default report is the
CPU utilization (-u) report.
The interval parameter specifies the amount of time in seconds
between each report. The default is one second. The value of
count parameter determines the number of samples to be displayed.
The default is continuous.
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-mpstat are:
-A This option is equivalent to specifying -u -I ALL -P ALL
-I { SUM | CPU | SCPU | ALL }
Report interrupts statistics.
With the SUM keyword, the pcp-mpstat command reports the
total number of interrupts per processor. The following
values are displayed:
CPU
Processor number. The keyword all indicates that
statistics are calculated as averages among all
processors.
intr/s
Show the total number of interrupts received per
second by the CPU or CPUs.
With the CPU keyword, the number of each individual
interrupt received per second by the CPU or CPUs is
displayed. Interrupts are those under the
kernel.percpu.interrupts metric tree.
With the SCPU keyword, the number of each individual
software interrupt received per second by the CPU or CPUs
is displayed. Software interrupts are those under the
kernel.percpu.softirqs tree
The ALL keyword is equivalent to specifying all the
keywords above and therefore all the interrupts statistics
are displayed.
-P { cpu1,cpu2[,...] | ON | ALL }
Indicate the processor number for which statistics are to
be reported. cpu1 and cpu2 are the processor numbers. A
list of required processor numbers can be provided. Note
that processor 0 is the first processor.
The ON keyword indicates that statistics are to be
reported for every online processor, whereas the ALL
keyword indicates that statistics are to be reported for
all processors.
-u Report CPU utilization. The following values are
displayed:
CPU
Processor number. The keyword ALL indicates that
statistics are calculated as averages among all
processors.
%usr
Show the percentage of CPU utilization that
occurred while executing at the user level
(application).
%nice
Show the percentage of CPU utilization that
occurred while executing at the user level with
nice priority.
%sys
Show the percentage of CPU utilization that
occurred while executing at the system level
(kernel). Note that this does not include time
spent servicing hardware and software interrupts.
%iowait
Show the percentage of time that the CPU or CPUs
were idle during which the system had an
outstanding disk I/O request.
%irq
Show the percentage of time spent by the CPU or
CPUs to service hardware interrupts.
%soft
Show the percentage of time spent by the CPU or
CPUs to service software interrupts.
%steal
Show the percentage of time spent in involuntary
wait by the virtual CPU or CPUs while the
hypervisor was servicing another virtual processor.
%guest
Show the percentage of time spent by the CPU or
CPUs to run a virtual processor.
%gnice
Show the percentage of time spent by the CPU or
CPUs to run a niced guest.
%idle
Show the percentage of time that the CPU or CPUs
were idle and the system did not have an
outstanding disk I/O request.
Note: On SMP machines a processor that does not have any
activity at all is a disabled (offline) processor.
-s N , --samples = N
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 that N. Default is continuous.
-t DELTA , --interval = DELTA
Set the interval between two samples. The default is one
second.
-a FILE , --archive = FILE
Causes pcp-mpstat 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.
-V , --version
Print version number then exit.
-? , --help
Print usage message then exit.
pcp-mpstat -t 2 -s 5
Display four reports of global statistics among all
processors at two second intervals.
pcp mpstat -P ALL -t 2 -s 5
Display four reports of statistics for all processors at
two second intervals.
pcp-mpstat is inspired by the mpstat(1) command and aims to be
command line and output compatible with it.
TZ and LC_TIME environment variables can be used to override the
default date display format for pcp-mpstat.
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), mpstat(1), pmParseInterval(3),
pmTraversePMNS(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-MPSTAT(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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