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:
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 Solaris software provides several tools to help you track how your system is performing. The following table describes these tools.
Table 11–3 Performance Monitoring Tools
Command |
Description |
For More Information |
---|---|---|
cpustat and cputrack commands |
Monitors performance of a system or a process using CPU performance counters. | |
netstat and nfsstat commands |
Displays information about network performance | |
ps and prstat commands |
Displays information about active processes | |
sar and sadc commands |
Collects and reports on system activity data | |
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 | |
vmstat and iostat commands |
Summarizes system activity data, such as virtual memory statistics, disk usage, and CPU activity | |
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. |