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Managing System Information, Processes, and Performance in Oracle® Solaris 11.4

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Updated: August 2021

System Activities That Are Monitored

While your computer is running, counters in the operating system are incremented to track various system activities.

The following system activities are tracked:

  • Central processing unit (CPU) utilization
  • Buffer usage
  • Disk and tape input/output (I/O) activity
  • Terminal device activity
  • System call activity
  • Context switching
  • File access
  • Queue activity
  • Kernel tables
  • Interprocess communication
  • Paging
  • Free memory and swap space
  • Kernel memory allocation (KMA)

The Oracle Solaris software provides several commands to help you track how your system is performing. The following lists selected commands in man page format with short descriptions.

cpustat(8) and cputrack(1)

Monitors performance of a system or a process using CPU performance counters.

See cpc Probe and Existing Tools in Oracle Solaris 11.4 DTrace (Dynamic Tracing) Guide.

kstat2(8) and mpstat(8)

Examines the available kernel statistics, or kstats, on the system and reports those statistics which match the criteria specified on the command line. The mpstat command reports processor statistics in tabular form.

See kstat2 Utility in Oracle Solaris 11.4 Tunable Parameters Reference Manual and Kernel Statistics in Writing Device Drivers in Oracle Solaris 11.4.

netstat(8) and nfsstat(8)

Displays information about network performance.

See Using the netstat Command in Administering TCP/IP Networks, IPMP, and IP Tunnels in Oracle Solaris 11.4, Networking Dcmds in Oracle Solaris Modular Debugger Guide, nfsstat Command in Managing Network File Systems in Oracle Solaris 11.4, and Administering Network File Systems in Managing Network File Systems in Oracle Solaris 11.4.

ps(1) and prstat(8)

Displays information about active processes.

See Using the ps Command.

sar(8) and sadc

Collects and reports on system activity data.

See Monitoring System Activities With the sar Command.


Displays information about available swap space on your system.

See Managing ZFS Swap and Dump Devices in Managing ZFS File Systems in Oracle Solaris 11.4.

vmstat(8) and iostat(8)

Summarizes system activity data, such as virtual memory statistics, disk usage, and CPU activity.

See Displaying System Performance Information.