[PATCH v9 09/10] sched: add SD_PREFER_SIBLING for SMT level
From: vincent.guittot@linaro.org (Vincent Guittot)
Date: 2014-11-03 16:57:32
Also in:
lkml
Subsystem:
scheduler, the rest · Maintainers:
Ingo Molnar, Peter Zijlstra, Juri Lelli, Vincent Guittot, Linus Torvalds
Add the SD_PREFER_SIBLING flag for SMT level in order to ensure that the scheduler will put at least 1 task per core. Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> Reviewed-by: Preeti U. Murthy <redacted> --- kernel/sched/core.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 37fb92c..731f2ad 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c@@ -6165,6 +6165,7 @@ sd_init(struct sched_domain_topology_level *tl, int cpu) */ if (sd->flags & SD_SHARE_CPUCAPACITY) { + sd->flags |= SD_PREFER_SIBLING; sd->imbalance_pct = 110; sd->smt_gain = 1178; /* ~15% */
--
1.9.1