The following is an example of the cswstat.d script,
TIME NUM CSWTIME AVGTIME
2005 May 17 01:57:21 276 2407 8
2005 May 17 01:57:22 283 2251 7
2005 May 17 01:57:23 259 2098 8
2005 May 17 01:57:24 268 2169 8
2005 May 17 01:57:25 1248 10864 8
2005 May 17 01:57:26 2421 21263 8
2005 May 17 01:57:27 2183 19804 9
2005 May 17 01:57:28 1980 18640 9
2005 May 17 01:57:29 794 7422 9
2005 May 17 01:57:30 275 2233 8
2005 May 17 01:57:31 288 2338 8
2005 May 17 01:57:32 545 4154 7
2005 May 17 01:57:33 264 2149 8
^C
In the above output, the average context switch time is 8 microseconds.
During the sample there was a burst of activity, increasing the number
of context switches per second from around 270 to over 2000. The time
consumed by all of these context switches in total is printed, peaking
at 21 ms.