pmcstat(8) on FreeBSD
The text cf313068e470, as FreeBSD 6.4-RELEASE shipped it.
performance measurement with performance monitoring hardware
Flags it lists
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-C -
-D -
-E -
-O -
-P -
-R -
-S -
-W -
-c -
-d -
-g -
-k -
-n -
-o -
-p -
-s -
-t -
-w