diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/sched_ule.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/kern/sched_ule.c b/sys/kern/sched_ule.c index 172f41a..c3916c9 100644 --- a/sys/kern/sched_ule.c +++ b/sys/kern/sched_ule.c @@ -2163,6 +2163,12 @@ sched_tick(void) struct td_sched *ts; ts = curthread->td_sched; + /* + * 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) + return; /* Adjust ticks for pctcpu */ ts->ts_ticks += 1 << SCHED_TICK_SHIFT; ts->ts_ltick = ticks; |
