lkml.org 
[lkml]   [2014]   [Jun]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 12/12] sched: add SD_PREFER_SIBLING for SMT level
Date
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(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 92dd6d1..9103669 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6068,6 +6068,7 @@ 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


\
 
 \ /
  Last update: 2014-07-01 05:41    [W:0.380 / U:84.860 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site