Mark Johnston 2b93f779d2 Add some counters for per-VM page events.
For now, just count batched page queue state operations.
vm.stats.page.queue_ops counts the number of batch entries that
successfully completed, while queue_nops counts entries that had no
effect, which occurs when the queue operation had been completed before
the batch entry was processed.

Reviewed by:	alc, kib
MFC after:	1 week
Sponsored by:	Intel, Netflix
Differential Revision:	https://reviews.freebsd.org/D21782
2019-09-25 17:08:35 +00:00
..
2017-11-30 15:45:42 +00:00
2019-06-02 01:00:17 +00:00
2019-07-03 19:59:56 +00:00
2019-09-16 21:31:02 +00:00