diff mbox

[v4,12/12] sched: add SD_PREFER_SIBLING for SMT level

Message ID 1406569906-9763-13-git-send-email-vincent.guittot@linaro.org
State New
Headers show

Commit Message

Vincent Guittot July 28, 2014, 5:51 p.m. UTC 
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>
---
 kernel/sched/core.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index fc5a275..3e4eea4 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6080,6 +6080,7 @@  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% */