vmstat - Report virtual memory statistics

syntax:

$ vmstat [options][delay [count]]

To run vmstat without options

$ vmstat

To Display Active and Inactive System Memory

$ vmstat -a

To display about memory, event counters, and CPU scheduling statistics

$ vmstat -s

To display number of forks since boot

$ vmstat -f

To display Quick Summary Disk Statistics

$ vmstat -D

To Display Disk Statistics
$ vmstat -d

To Display Partition Statistics

$ vmstat -p vda1

To Display Timestamp Information for Updates

$ vmstat -t

To use a Delay Value

$ vmstat [delay]

$ vmstat 4

To use a Count Value

$ vmstat [delay[count]]

$ vmstat 4 5

To Change Units

$ vmstat 3 -S M

To Display Statistics for Slabs

$ sudo vmstat -m

regards,

T.Dhanasekar