The sysstat package contains the sar, mpstat, iostat, sadf and sa tools for Linux.

  • sar command collects and reports system activity information.

  • iostat command reports CPU utilization and I/O statistics for disks.

  • mpstat command reports global and per-processor statistics.

  • sadf command is used to display data collected by sar in various formats.

The statistics reported by sar concern I/O transfer rates, paging activity, process-related activities, interrupts, network activity, memory and swap space utilization, CPU utilization, kernel activities and TTY statistics, among others.


source: sysstat

binary: sysstat

Usage Examples



iostat man page

mpstat man page

sa1 man page

sa2 man page

sadc man page

sadf man page

sar man page

See Also