K 10
svn:author
V 5
mmacy
K 8
svn:date
V 27
2018-09-14T01:30:05.550511Z
K 7
svn:log
V 453
hwpmc: set default rate if event description lacks one / filter rate against misuse

Not all event descriptions have a sample rate (such as inst_retired.any)
this will restore the legacy behavior of using 65536 in that case. It also
prevents accidental API misuse that could lead to panic.

PR:	230985
Reported by:	markj
Reviewed by:	markj
Approved by:	re (gjb)
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D16958

END