From 14b586bf964970197e12228d127a713b7db7abcb Mon Sep 17 00:00:00 2001 From: jeff Date: Fri, 25 Apr 2008 05:18:50 +0000 Subject: - Add an integer argument to idle to indicate how likely we are to wake from idle over the next tick. - Add a new MD routine, cpu_wake_idle() to wakeup idle threads who are suspended in cpu specific states. This function can fail and cause the scheduler to fall back to another mechanism (ipi). - Implement support for mwait in cpu_idle() on i386/amd64 machines that support it. mwait is a higher performance way to synchronize cpus as compared to hlt & ipis. - Allow selecting the idle routine by name via sysctl machdep.idle. This replaces machdep.cpu_idle_hlt. Only idle routines supported by the current machine are permitted. Sponsored by: Nokia --- sys/kern/sched_4bsd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sys/kern/sched_4bsd.c') diff --git a/sys/kern/sched_4bsd.c b/sys/kern/sched_4bsd.c index ed5cf62..cefe4ac 100644 --- a/sys/kern/sched_4bsd.c +++ b/sys/kern/sched_4bsd.c @@ -1443,7 +1443,7 @@ sched_idletd(void *dummy) mtx_assert(&Giant, MA_NOTOWNED); while (sched_runnable() == 0) - cpu_idle(); + cpu_idle(0); mtx_lock_spin(&sched_lock); mi_switch(SW_VOL | SWT_IDLE, NULL); -- cgit v1.1