About Monitoring System Performance

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

System activities that are tracked are as follows:

The Solaris software provides several tools to help you track how your system is performing. The following table describes these tools.

Command	Description	For More Information
`cpustat` and `cputrack` commands	Monitors performance of a system or a process using CPU performance counters.	`cpustat`(1M) and `cputrack`(1)
`netstat` and `nfsstat` commands	Displays information about network performance	`netstat`(1M) and `nfsstat`(1M)
`ps` and `prstat` commands	Displays information about active processes	Chapter 12, Managing System Processes (Tasks)
`sar` and `sadc` commands	Collects and reports on system activity data	Chapter 13, Monitoring System Performance (Tasks)
Sun Enterprise SyMON	Collects system activity data on Sun's enterprise-level systems	Sun Enterprise SyMON 2.0.1 Software User's Guide
`swap` command	Displays information about available swap space on your system	Chapter 21, Configuring Additional Swap Space (Tasks), in System Administration Guide: Devices and File Systems
`vmstat` and `iostat` commands	Summarizes system activity data, such as virtual memory statistics, disk usage, and CPU activity	Chapter 13, Monitoring System Performance (Tasks)
`cputrack` and `cpustat` commands	Assists in accessing hardware performance counter facilities provided by microprocessors	`cputrack`(1) and `cpustat`(1M) man pages
`kstat` and `mpstat` commands	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.	`kstat`(1M) and `mpstat`(1M) man pages.