To display report for all CPU and devices
$ iostat
To display the CPU utilization report
$ iostat -c
To display continuous CPU utilization report at specific seconds interval
$ iostat -c 5
$ iostat -c 10
To display the device utilization report
$ iostat -d
To display specific device utilization reports at specific second intervals
$ iostat -d 5 5
$ iostat -d 3 10
To display the registered device mapper names
$ iostat -N
To display the report in human-readable format
$ iostat -h
To view the extended statistics
$ iostat -x
To display the timestamp for each report
$ iostat -t
To display statistics for a specific device and its partitions
$ iostat -p sda
$ iostat -p vda
To display statistics for all the block devices and partitions
$ iostat -p ALL
To display statistics for a group of devices
$ iostat -g docker
$ iostat -g kvm
$ iostat -g sudo
To print output in JSON format
$ iostat -c -o JSON
regards,
T.Dhanasekar