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.TH MPSTAT 1 "FEBRUARY 2004" Linux "Linux User's Manual" -*- nroff -*-
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mpstat \- Report processors related statistics.
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command writes to standard output activities for each available processor,
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processor 0 being the first one.
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Global average activities among all processors are also reported.
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command can be used both on SMP and UP machines, but in the latter, only global
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average activities will be printed.
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parameter specifies the amount of time in seconds between each report.
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A value of 0 indicates that processors statistics are to be reported
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for the time since system startup (boot).
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parameter can be specified in conjunction with the
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parameter if this one is not set to zero. The value of
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determines the number of reports generated at
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parameter is specified without the
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command generates reports continuously.
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The report generated by the
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command has the following format:
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Processor number. The keyword
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indicates that statistics are calculated as averages among all
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Show the percentage of CPU utilization that occurred while
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executing at the user level (application).
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Show the percentage of CPU utilization that occurred while
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executing at the user level with nice priority.
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Show the percentage of CPU utilization that occurred while
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executing at the system level (kernel). Note that this does not
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include the time spent servicing interrupts or softirqs.
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Show the percentage of time that the CPU or CPUs were idle during which
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the system had an outstanding disk I/O request.
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Show the percentage of time spent by the CPU or CPUs to service interrupts.
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Show the percentage of time spent by the CPU or CPUs to service softirqs.
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A softirq (software interrupt) is one of up to 32 enumerated software
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interrupts which can run on multiple CPUs at once.
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Show the percentage of time that the CPU or CPUs were idle and the system
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did not have an outstanding disk I/O request.
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Show the total number of interrupts received per second by
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Indicate the processor number for which statistics are to be reported.
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is the processor number. Note that processor 0 is the first processor.
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keyword indicates that statistics are to be reported for all processors.
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Print version number and usage then exit.
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command takes into account the following environment variable:
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If this variable exists and its value is
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then the current locale will be ignored when printing the date in the report header.
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command will use the ISO 8601 format (YYYY-MM-DD) instead.
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Display five reports of global statistics among all processors at two second intervals.
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Display five reports of statistics for all processors at two second intervals.
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filesystem must be mounted for the
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Only a few activities are supplied by the Linux kernel for each processor.
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contains various files with system statistics.
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Sebastien Godard (sysstat <at> wanadoo.fr)
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.I http://perso.wanadoo.fr/sebastien.godard/
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removed
man/mpstat.1
