sar - Collect, report, or save system activity information.

syntax
 $ sar [option] [interval] [count]

To display the CPU utilization report.
$ sar -u
$ sar -u ALL

To report CPU utilization for each n seconds
$  sar -u 3
$ sar -u 10

To display memory utilization statistics
$ sar -r

To display I/O and transfer rate statistics
$ sar -b

To display statistics for the specified processor
$ sar -P 0

To reports statistics for each individual processor, and globally for all processors
$ sar -P ALL

To view swap space utilization statistics
$ sar -S

To display 4 swap space utilization reports for every 3 seconds
$ sar -S 2 4

To display memory swapping statistics
$ sar -W

To display filesystems statistics
$ sar -F 2 4

To report network statistics
$ sar -n SOCK
$ sar -n DEV

To display all network statistics
$ sar  -n ALL

To display block devices statistics
$ sar -d

To display queue length and load averages
$ sar -q

To display paging statistics
$ sar -B

To report task creation and system switching activity
$ sar -w 2 4

To report about kernel tables
$ sar -v 2 4

To display all statistics
$ sar -A



regards,
T.Dhanasekar