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| author | jeff <jeff@FreeBSD.org> | 2003-12-11 04:23:39 +0000 |
|---|---|---|
| committer | jeff <jeff@FreeBSD.org> | 2003-12-11 04:23:39 +0000 |
| commit | 6edc4a1eb1e438d8bca422337979f029155961e7 (patch) | |
| tree | 355200e9e61b010837b4d8e098d3a4eea8c12a01 | |
| parent | da98a74234d770fbe15d09a3a0f51778cb9d9974 (diff) | |
| download | FreeBSD-src-6edc4a1eb1e438d8bca422337979f029155961e7.zip FreeBSD-src-6edc4a1eb1e438d8bca422337979f029155961e7.tar.gz | |
- Don't let the pctcpu rate limiter throttle us if we have recorded over
SCHED_CPU_TICKS ticks. This was allowing processes to display
(1/SCHED_CPU_TIME * 100) % more cpu than they had used.
| -rw-r--r-- | sys/kern/sched_ule.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/kern/sched_ule.c b/sys/kern/sched_ule.c index f7a9636..8c4eeaa 100644 --- a/sys/kern/sched_ule.c +++ b/sys/kern/sched_ule.c @@ -1584,7 +1584,8 @@ sched_pctcpu(struct thread *td) * this causes the cpu usage to decay away too quickly due to * rounding errors. */ - if (ke->ke_ltick < (ticks - (hz / 2))) + if (ke->ke_ftick + SCHED_CPU_TICKS < ke->ke_ltick || + ke->ke_ltick < (ticks - (hz / 2))) sched_pctcpu_update(ke); /* How many rtick per second ? */ rtick = min(ke->ke_ticks / SCHED_CPU_TIME, SCHED_CPU_TICKS); |
