John Baldwin 29442a30e2 Add interrupt counters for IPIs. By default they are disabled, but they
can be enabled by enabling COUNT_IPIS in smptests.h.  When enabled, each
CPU provides an interrupt counter for nearly all of the IPIs it receives
(IPI_STOP currently doesn't have a counter) that can be examined using
vmstat -i, etc.

MFC after:	3 days
Requested by:	rwatson
2005-09-28 18:04:11 +00:00
..
2005-09-11 18:39:03 +00:00