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