Swapping

You can see if any swapping has taken place since a UNIX server was started by running vmstat –s. If you see values other than zero on the swap ins or swap outs lines, then swapping has occurred:

Solaris > vmstat -s

     4123 swap ins

      118 swap outs

    12369 pages swapped in

    35254 pages swapped out

93593074720 total address trans. faults taken

16175338065 page ins

67075526 page outs

167117261315 pages paged in

153673896 pages paged out

157281194355 total reclaims

157268182842 reclaims from free list

        0 micro (hat) faults

93593074720 minor (as) faults

12433082155 major faults

22790008329 copy-on-write faults

30659757855 zero fill page faults

228888590 pages examined by the clock daemon

      112 revolutions of the clock hand

146623357 pages freed by the clock daemon

251218086 forks

  8106297 vforks

197058709 execs

994409866209 cpu context switches

584512421794 device interrupts

135390836607 traps

2614749602197 system calls

328390806433 total name lookups (cache hits 99%)

7844654930 user   cpu

8057496148 system cpu

25835471029 idle   cpu

        0 wait   cpu

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