Mpstat "minf" and "mjf" or vmstat "mf"

Question

I wish to find the page fault rate for a Solaris system. The man page for the mpstat command lists a statistic for "minor faults" (minf) and "major fault" (mjf). Under the vmstat man page, it states that you can get information for page faults including "mf" for "minor faults". Which statistic do I want? What are major and minor faults?
Thanks.

Answer 1

Hi,
I am new to the Unix world. I used vmstat and mpstat
to record the statistics for a test. The mpstat shows
an average wait time of 23% and the average idle time
of 73%. On the other hand, vmstat shows an average
idle time of 96%.
Is this because vmstat shows idle time as the sum of
CPU wait and CPU idle time?
Yes, it is.
Sample vmstat trace:
0 0 0 16341136 6397680 9 5 1 0 0 0 0 64 0 0
0 0 688 861 642 1 2 97
0 0 0 16341136 6397720 8 5 2 0 0 0 0 64 0 0
0 0 691 855 650 2 2 96
0 0 0 16341136 6397680 8 5 2 0 0 0 0 63 0 0
0 0 687 872 641 1 2 97
0 0 0 16341136 6397648 7 5 1 0 0 0 0 52 0 0
0 0 607 700 543 1 2 97
Sample mpstat trace:
CPU minf mjf xcal intr ithr csw icsw migr smtx srw
syscl usr sys wt idl
0 1 0 109 16 5 319 7 20 11 1
1 408 2 3 22 73
1 4 0 128 674 566 321 7 20 13 1
1 443 1 1 22 75
CPU minf mjf xcal intr ithr csw icsw migr smtx srw
syscl usr sys wt idl
0 0 0 107 18 6 324 8 17 9 0
0 474 2 3 21 74
1 5 0 122 653 547 296 5 17 14 0
0 373 1 1 19 79
Thanks,
Paul Ng