mpstat is a
computer command-line
software
Software is a set of computer programs and associated software documentation, documentation and data (computing), data. This is in contrast to Computer hardware, hardware, from which the system is built and which actually performs the work.
...
used in
Unix
Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, a ...
-type
operating system
An operating system (OS) is system software that manages computer hardware, software resources, and provides common daemon (computing), services for computer programs.
Time-sharing operating systems scheduler (computing), schedule tasks for ef ...
s to report (on the screen)
processor-related statistics. It is used in
computer monitoring in order to diagnose problems or to build statistics about a computer's
CPU
A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, and ...
usage
The usage of a language is the ways in which its written and spoken variations are routinely employed by its speakers; that is, it refers to "the collective habits of a language's native speakers", as opposed to idealized models of how a languag ...
.
Description
The mpstat command writes to standard output activities for each available
processor.
The mpstat command can be used both on
SMP
SMP may refer to:
Organisations
* Scale Model Products, 1950s, acquired by Aluminum Model Toys
* School Mathematics Project, UK developer of mathematics textbooks
* '' Sekolah Menengah Pertama'', "junior high school" in Indonesia
* Shanghai Mun ...
and UP machines, but in the latter, only global average activities will be printed.
Usage
$ mpstat
Interval is the time in seconds between printing out a line of statistics. Count is the number of lines of output you want.
Note that the first line of output from mpstat (like
iostat,
vmstat, etc.) contains averages since system boot. The subsequent lines will show current values.
Examples
Different examples of output under different operating systems:
under Linux kernel 4.14 on a two CPU machine:
Linux 4.14.24.mptcp (hostname) 05/23/2018 _x86_64_ (2 CPU)
03:51:19 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle
03:51:20 PM all 2.51 0.00 2.01 0.00 0.00 0.00 0.00 0.00 0.00 95.48
03:51:21 PM all 2.53 0.00 2.02 0.00 0.00 0.00 0.00 0.00 0.00 95.45
under Linux kernel 2.4:
$ 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 11:
$ mpstat
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 0 0 0 329 121 169 6 0 0 0 406 0 1 0 98
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
See also
*
nmon
*
top
References
Linux mpstat man page
External links
sysstat- includes mpstat
Unix software
{{Unix-stub