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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2012-05-11 00:26:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-05-14 15:05:26 +0200 |
| commit | 870a0bb5d636156502769233d02a0d5791d4366a (patch) | |
| tree | c008809e111a3487af2c27f8c105200950f11671 /kernel/sched | |
| parent | 04f733b4afac5dc93ae9b0a8703c60b87def491e (diff) | |
| download | op-kernel-dev-870a0bb5d636156502769233d02a0d5791d4366a.zip op-kernel-dev-870a0bb5d636156502769233d02a0d5791d4366a.tar.gz | |
sched/numa: Don't scale the imbalance
It's far too easy to get ridiculously large imbalance pct when you
scale it like that. Use a fixed 125% for now.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-zsriaft1dv7hhboyrpvqjy6s@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 24922b7f..6883d99 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6261,11 +6261,6 @@ static int *sched_domains_numa_distance; static struct cpumask ***sched_domains_numa_masks; static int sched_domains_curr_level; -static inline unsigned long numa_scale(unsigned long x, int level) -{ - return x * sched_domains_numa_distance[level] / sched_domains_numa_scale; -} - static inline int sd_local_flags(int level) { if (sched_domains_numa_distance[level] > REMOTE_DISTANCE) @@ -6286,7 +6281,7 @@ sd_numa_init(struct sched_domain_topology_level *tl, int cpu) .min_interval = sd_weight, .max_interval = 2*sd_weight, .busy_factor = 32, - .imbalance_pct = 100 + numa_scale(25, level), + .imbalance_pct = 125, .cache_nice_tries = 2, .busy_idx = 3, .idle_idx = 2, |
