Provided by: sysstat_12.0.1-1_amd64 bug

NAME

       mpstat - Report processors related statistics.

SYNOPSIS

       mpstat [ -A ] [ --dec={ 0 | 1 | 2 } ] [ -n ] [ -u ] [ -V ] [ -I { keyword [,...] | ALL } ]
       [ -N { node_list | ALL } ] [ -o JSON ] [ -P { cpu_list | ALL } ] [ interval [ count ] ]

DESCRIPTION

       The mpstat command writes to standard output  activities  for  each  available  processor,
       processor  0 being the first one.  Global average activities among all processors are also
       reported.  The mpstat command can be used both on SMP and UP machines, but in the  latter,
       only global average activities will be printed. If no activity has been selected, then the
       default report is the CPU utilization report.

       The interval parameter specifies the amount of time in seconds  between  each  report.   A
       value  of  0  (or  no  parameters  at  all) indicates that processors statistics are to be
       reported for the time since system startup (boot).  The count parameter can  be  specified
       in  conjunction  with  the interval parameter if this one is not set to zero. The value of
       count determines the number of  reports  generated  at  interval  seconds  apart.  If  the
       interval  parameter is specified without the count parameter, the mpstat command generates
       reports continuously.

OPTIONS

       -A     This option is equivalent to specifying -n -u -I ALL -N ALL -P ALL

       --dec={ 0 | 1 | 2 }
              Specify the number of decimal places to use (0 to 2, default value is 2).

       -I { keyword [,...] | ALL }
              Report interrupts statistics.

              Possible keywords are CPU, SCPU, and SUM.

              With the CPU keyword, the number of each individual interrupt received  per  second
              by  the  CPU  or CPUs is displayed. Interrupts are those listed in /proc/interrupts
              file.

              With the SCPU keyword, the number of each individual  software  interrupt  received
              per  second  by  the  CPU or CPUs is displayed. This option works only with kernels
              2.6.31 and later. Software interrupts are those listed in /proc/softirqs file.

              With the SUM keyword, the 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.

              The ALL keyword is equivalent to specifying all the keywords  above  and  therefore
              all the interrupts statistics are displayed.

       -N { node_list | ALL }
              Indicate  the  NUMA  nodes for which statistics are to be reported.  node_list is a
              list of comma-separated values or range of values (e.g., 0,2,4-7,12-).   Note  that
              node  all  is  the  global  average among all nodes. The ALL keyword indicates that
              statistics are to be reported for all nodes.

       -n     Report summary CPU statistics based on NUMA node placement.  The  following  values
              are displayed:

              NODE
                     Node  number.  The  keyword  all indicates that statistics are calculated as
                     averages among all nodes.

              All the other fields are the same as those displayed with option -u (see below).

       -o JSON
              Display the statistics in JSON (Javascript Object Notation)  format.   JSON  output
              field order is undefined, and new fields may be added in the future.

       -P { cpu_list | ALL }
              Indicate  the  processors  for  which statistics are to be reported.  cpu_list is a
              list of comma-separated values or range of values (e.g., 0,2,4-7,12-).   Note  that
              processor  0  is the first processor, and processor all is the global average among
              all processors.  The ALL keyword indicates that statistics are to be  reported  for
              all processors.  Offline processors are not displayed.

       -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.

       -V     Print version number then exit.

ENVIRONMENT

       The mpstat command takes into account the following environment variable:

       S_COLORS
              When this variable is set, display statistics in color on the  terminal.   Possible
              values for this variable are never, always or auto (the latter is the default).

              Note:  On  Debian  sysstems  the  colors  are  displayed  by default when output is
              connected to the terminal, even if this variable is not set (i.e. unset variable is
              treated as if it were set to auto).

              Please note that the color (being red, yellow, or some other color) used to display
              a value is not indicative of any kind of issue simply because of the color. It only
              indicates different ranges of values.

       S_COLORS_SGR
              Specify the colors and other attributes used to display statistics on the terminal.
              Its  value  is  a  colon-separated  list   of   capabilities   that   defaults   to
              H=31;1:I=32;22:M=35;1:N=34;1:Z=34;22.  Supported capabilities are:

              H=     SGR  (Select Graphic Rendition) substring for percentage values greater than
                     or equal to 75%.

              I=     SGR substring for CPU number.

              M=     SGR substring for percentage values in the range from 50% to 75%.

              N=     SGR substring for non-zero statistics values.

              Z=     SGR substring for zero values.

       S_TIME_FORMAT
              If this variable exists and its value is  ISO  then  the  current  locale  will  be
              ignored  when  printing the date in the report header.  The mpstat command will use
              the ISO 8601 format (YYYY-MM-DD) instead.  The timestamp  will  also  be  compliant
              with ISO 8601 format.

EXAMPLES

       mpstat 2 5
              Display  five  reports  of  global  statistics  among  all processors at two second
              intervals.

       mpstat -P ALL 2 5
              Display five reports of statistics for all processors at two second intervals.

BUGS

       /proc filesystem must be mounted for the mpstat command to work.

FILES

       /proc contains various files with system statistics.

AUTHOR

       Sebastien Godard (sysstat <at> orange.fr)

SEE ALSO

       sar(1), pidstat(1), iostat(1), vmstat(8)

       https://github.com/sysstat/sysstat

       http://pagesperso-orange.fr/sebastien.godard/