pmcstudy(8) on FreeBSD
The text 851c623f6cbe, as FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE, FreeBSD 13.0-RELEASE shipped it.
Perform various studies on a system's overall PMCs
Flags it lists
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-A -
-E -
-H -
-L -
-T -
-e -
-h -
-i -
-m -
-v