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| author | Ingo Molnar <mingo@elte.hu> | 2007-09-05 12:32:49 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-09-05 12:32:49 (GMT) |
| commit | a0dc72601d48b171b4870dfdd0824901a2b2b1a9 (patch) | |
| tree | 25a8ee03d5d85f8138af5c6df558646989357376 | |
| parent | 7fd0d2dde929ead79901e389e70dbfb3c6c06986 (diff) | |
| download | linux-a0dc72601d48b171b4870dfdd0824901a2b2b1a9.tar.xz | |
sched: fix niced_granularity() shift
fix niced_granularity(). This resulted in under-scheduling for
CPU-bound negative nice level tasks (and this in turn caused
higher than necessary latencies in nice-0 tasks).
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/sched_fair.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index ce39282..810b52d 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -291,7 +291,7 @@ niced_granularity(struct sched_entity *curr, unsigned long granularity) /* * It will always fit into 'long': */ - return (long) (tmp >> WMULT_SHIFT); + return (long) (tmp >> (WMULT_SHIFT-NICE_0_SHIFT)); } static inline void |