K 10
svn:author
V 3
mav
K 8
svn:date
V 27
2012-10-06T13:38:49.736938Z
K 7
svn:log
V 548
MFC r212455:
Merge some SCHED_ULE features to SCHED_4BSD:
- Teach SCHED_4BSD to inform cpu_idle() about high sleep/wakeup rate to
choose optimized handler. In case of x86 it is MONITOR/MWAIT. Also it
will be needed to bypass forthcoming idle tick skipping logic to not
consume resources on events rescheduling when it won't give any benefits.
- Teach SCHED_4BSD to wake up idle CPUs without using IPI. In case of x86,
when MONITOR/MWAIT is active, it require just single memory write. This
doubles performance on some heavily switching test loads.

END