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 tools to help you track how your system is performing.
Table 4 Performance Monitoring Commands
|
|
|
|
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.
|
|
|
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.
|
|
|
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.
|
|
|