mpstat

mpstat is a computer command-line software used in unix-type operating systems to report (on the screen) processor related statistics. It is used in computer monitoring in order to diagnose problems or for build statistics about a computer CPU usage.

Description

The mpstat command writes to standard output activities for each available processor.

The mpstat command can be used both on SMP and UP machines, but in the latter, only global average activities will be printed.

Usage

$ mpstat <interval> <count>

Interval is the time in seconds between printing out a line of statistics. Count is the number of lines of output you want.

It's very important to disregard the first line of output from mpstat (like iostat, vmstat, etc.) as this line has unreliable information.

Examples

Example of output under linux:

$ mpstat
Linux 2.4.21-32.ELsmp (linux00)        07/04/07

10:26:54     CPU   %user   %nice %system %iowait    %irq   %soft   %idle    intr/s
10:26:54     all    0.07    0.00    0.16    8.48    0.00    0.09   91.18    165.49

under Solaris 8

$ mpstat
CPU minf mjf xcal  intr ithr  csw icsw migr smtx  srw syscl  usr sys  wt idl
  0  -43 -29    0 -1313 -1406 -769 -701    0  -20    0  -806  -112 -49 -10 -1889

under AIX 6

$ mpstat 1 1

System configuration: lcpu=8 ent=1.0 mode=Uncapped

cpu  min  maj  mpc  int   cs  ics   rq  mig lpa sysc us sy wa id   pc  %ec  lcs
  0    8    0    0  182  336  102    0    0 100 1434 38 51  0 12 0.02  1.8  185
  1    0    0    0   11    5    5    0    0   -    0  0 19  0 81 0.00  0.1   12
  2    0    0    0    1    0    0    0    0   -    0  0 42  0 58 0.00  0.0    0
  3    0    0    0    1    0    0    0    0   -    0  0 43  0 57 0.00  0.0    0
  4    0    0    0    1    0    0    0    0   -    0  0 45  0 55 0.00  0.0    0
  5    0    0    0    1    0    0    0    0   -    0  0 44  0 56 0.00  0.0    0
  6    0    0    0    1    0    0    0    0   -    0  0  2  0 98 0.00  0.0    0
  7    0    0    0   53    5    5    0    0   -    0  0 66  0 34 0.00  0.2   54
  U    -    -    -    -    -    -    -    -   -    -  -  -  0 99 0.99 99.0    -
ALL    8    0    0  251  346  112    0    0 100 1434  0  0  0 99 0.02  2.0  251

References

• Linux mpstat man page
• AIX mpstat manual page

External links

• sysstat - includes mpstat

This Unix-related article is a stub. You can help Wikipedia by expanding it.v · Categories: Unix software Unix stubs Wikimedia Foundation. 2010. Игры ⚽ Нужно решить контрольную? Mps.br Mukesh Patel School of Technology Management and Engineering Look at other dictionaries: Mpstat — is a computer command line software used in linux operating system to report (on the screen) processor related statistics. It is used in computer monitoring in order to diagnose problems or for build statistics about a computer CPU usage.… …   Wikipedia Load (computing) — In UNIX computing, the system load is a measure of the amount of work that a computer system is doing. The load average is the average system load over a period of time. It is conventionally given as three numbers that represent the system load… …   Wikipedia Iostat — (input/output statistics) is a computer operating system monitoring tool used to collect and show storage input and output statistics.It is often used to identify performance issues with local disks or networked file systems such as NFS.The… …   Wikipedia CPU time — on Single CPU Multi Tasking System CPU time (or CPU usage, process time) is the amount of time for which a central processing unit (CPU) was used for processing instructions of a computer program, as opposed to, for example, waiting for… …   Wikipedia Tiempo de CPU — Exhibición del tiempo de CPU (usando top) de varios procesos en un sistema tipo Unix (GNU/Linux) (la columna TIME+ ). El tiempo de CPU (o uso del CPU, o tiempo de proceso) es la cantidad de tiempo en que la unidad central de proceso fue usada… …   Wikipedia Español 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”