IOSTAT(1)                                               IOSTAT(1)

     NAME
          iostat, load, dkstat - report I/O and CPU statistics

     SYNOPSIS
          iostat [ interval [ count ] ]

          load [ interval [ count [ sysfile [ corefile ] ] ] ]

          dkstat [ interval [ count ] ]

     DESCRIPTION
          Iostat periodically reports the number of characters read
          and written to terminals, and, for each disk, the number of
          seeks and transfers per second, and average milliseconds per
          seek.  It also reports the percentage of time the system has
          spent in user mode, in user mode running low priority
          (niced) processes, in system mode, and idling.  The first
          report is for all time since a reboot and each subsequent
          report is for the last interval only.

          Load periodically reports the number of processes ready to
          run averaged over the preceding 1, 5, and 15 minutes.

          Dkstat periodically reports the number of packets received
          and sent over the Datakit network, together with error
          reports if any occurred.  The first report is for all time
          since a reboot and each subsequent report is for the last
          interval only.

          The optional interval argument causes a report once each
          interval seconds.

          The optional count argument restricts the number of reports.

          The optional arguments sysfile and corefile cause the named
          files to be consulted instead of the defaults, `/unix' and
          `/dev/kmem'.

     FILES
          /dev/kmem
          /unix

     SEE ALSO
          sysmon(9.1), vmstat(8)