diff options
| author | Zachary Loafman <zml@FreeBSD.org> | 2009-09-30 19:40:51 +0000 |
|---|---|---|
| committer | Zachary Loafman <zml@FreeBSD.org> | 2009-09-30 19:40:51 +0000 |
| commit | bc584e4bd9d58fcfc7ea28dfbbe3634fed207c7b (patch) | |
| tree | 95b495a2d013311d863450ad005452e904d80760 /sys/kern | |
| parent | 292234263e5a150e613f4bb829f57745c87dbf19 (diff) | |
Notes
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/sched_ule.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/kern/sched_ule.c b/sys/kern/sched_ule.c index 0340a35cf9dd..36c54b3d4e31 100644 --- a/sys/kern/sched_ule.c +++ b/sys/kern/sched_ule.c @@ -101,6 +101,7 @@ struct td_sched { u_int ts_runtime; /* Number of ticks we were running */ /* The following variables are only used for pctcpu calculation */ int ts_ltick; /* Last tick that we were running on */ + int ts_incrtick; /* Last tick that we incremented on */ int ts_ftick; /* First tick that we were running on */ int ts_ticks; /* Tick count */ #ifdef SMP @@ -2075,6 +2076,7 @@ sched_fork_thread(struct thread *td, struct thread *child) */ ts2->ts_ticks = ts->ts_ticks; ts2->ts_ltick = ts->ts_ltick; + ts2->ts_incrtick = ts->ts_incrtick; ts2->ts_ftick = ts->ts_ftick; child->td_user_pri = td->td_user_pri; child->td_base_user_pri = td->td_base_user_pri; @@ -2266,10 +2268,11 @@ sched_tick(void) * Ticks is updated asynchronously on a single cpu. Check here to * avoid incrementing ts_ticks multiple times in a single tick. */ - if (ts->ts_ltick == ticks) + if (ts->ts_incrtick == ticks) return; /* Adjust ticks for pctcpu */ ts->ts_ticks += 1 << SCHED_TICK_SHIFT; + ts->ts_incrtick = ticks; ts->ts_ltick = ticks; /* * Update if we've exceeded our desired tick threshhold by over one |