[PATCH RESEND v9 09/10] sched: add SD_PREFER_SIBLING for SMT level
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
Reviewed-by: Preeti U. Murthy
---
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
--
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[PATCH RESEND v9 09/10] sched: add SD_PREFER_SIBLING for SMT level
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.guit...@linaro.org
Reviewed-by: Preeti U. Murthy pre...@linux.vnet.ibm.com
---
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
--
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the body of a message to majord...@vger.kernel.org
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