System Administration Guide: Advanced Administration

How to Display Swapping Statistics (vmstat -S)

Run vmstat -S to show swapping statistics.


$ vmstat -S
 procs     memory            page            disk          faults      cpu
 r b w   swap  free  si  so pi po fr de sr f0 s0 s6 --   in   sy   cs us sy id
 0 0 0 200968 17936   0   0  0  0  0  0  0  0  0  0  0  109   43   24  0  0 100

The swapping statistics fields are described in the following table. For a description of the other fields, see Table 24–1.

Table 24–2 Output From the vmstat -S Command

Field Name 

Description 

si

Average number of LWPs that are swapped in per second 

so

Number of whole processes that are swapped out 


Note –

The vmstat command truncates the output of both fields. Use the sar command to display a more accurate accounting of swap statistics.