solaris - mpstat (1)

     mpstat - report per-processor statistics

     /usr/bin/mpstat [ interval [ count ] ]

     SUNWcsu

     mpstat reports per-processor  statistics  in  tabular  form.
     Each row of the table represents the activity of one proces-
     sor.  The first table summarizes all  activity  since  boot;
     each  subsequent table summarizes activity for the preceding
     interval.  All values are rates (events per  second)  unless
     otherwise noted.

     mpstat reports the following information:

          CPU     processor ID
          minf    minor faults
          mjf     major faults
          xcal    inter-processor cross-calls
          intr    interrupts
          ithr    interrupts  as  threads  (not  counting   clock
                  interrupt)
          csw     context switches
          icsw    involuntary context switches
          migr    thread migrations (to another processor)
          smtx    spins on mutexes (lock not  acquired  on  first
                  try)
          srw     spins  on  readers/writer   locks   (lock   not
                  acquired on first try)
          syscl   system calls
          usr     percent user time
          sys     percent system time
          wt      percent wait time
          idl     percent idle time

     interval
             Report once each interval seconds.

     count   Only print count reports.

     sar(1), iostat(1M), sar(1M), vmstat(1M)