NAME

mpstat − show multi-processor usage

SYNOPSIS

/usr/kvm/mpstat [ interval [ count ] ]

AVAILABILITY

This program is only available on sun4m architectures. 

DESCRIPTION

mpstat enters the system and shows average and per-processor percentage usage data during a particular time interval.   The first group of data represents the average of all the processors in the system while the second and subsequent data groups represent particular processors, with their particular name designations above each group. 

Without an interval or count option, vmstat displays a one-line summary of MP system activity since the system has been booted.  If interval is specified, vmstat summarizes activity over the last interval seconds.  If a count is given, the statistics are repeated count times. 

The particular fields of each data group give a breakdown of percentage usage of CPU time:

us user time for normal processes

ni time for processes with an altered scheduling priority (nice(1))

sy system time

id CPU idle

FILES

/dev/kmem

/vmunix

SEE ALSO

mps(1), nice(1), ps(1), vmstat(8)

Sun Release 4.1  —  Last change: 6 March 1991