[PATCH v3 12/12] sched: add SD_PREFER_SIBLING for SMT level

[PATCH v3 00/12] sched: consolidation of cpu_power · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
[PATCH v3 01/12] sched: fix imbalance flag reset · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Preeti U Murthy <hidden> · 2014-07-08
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-08
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Preeti U Murthy <hidden> · 2014-07-09
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-09
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Peter Zijlstra <peterz@infradead.org> · 2014-07-09
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Preeti U Murthy <hidden> · 2014-07-09
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Peter Zijlstra <peterz@infradead.org> · 2014-07-09
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-10
[PATCH v4 ] sched: fix imbalance flag reset · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-10
Re: [PATCH v4 ] sched: fix imbalance flag reset · Preeti U Murthy <hidden> · 2014-07-10
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Preeti U Murthy <hidden> · 2014-07-10
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Rik van Riel <hidden> · 2014-07-09
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Rik van Riel <hidden> · 2014-07-09
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Peter Zijlstra <peterz@infradead.org> · 2014-07-09
Re: [PATCH v3 01/12] sched: fix imbalance flag reset · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-09
[PATCH v3 03/12] sched: fix avg_load computation · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
Re: [PATCH v3 03/12] sched: fix avg_load computation · Rik van Riel <hidden> · 2014-07-09
[PATCH v3 06/12] sched: add per rq cpu_power_orig · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
Re: [PATCH v3 06/12] sched: add per rq cpu_power_orig · Rik van Riel <hidden> · 2014-07-09
Re: [PATCH v3 06/12] sched: add per rq cpu_power_orig · Amit Kucheria <hidden> · 2014-07-09
[PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Peter Zijlstra <peterz@infradead.org> · 2014-07-10
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-11
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Peter Zijlstra <peterz@infradead.org> · 2014-07-11
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-11
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Peter Zijlstra <peterz@infradead.org> · 2014-07-11
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Morten Rasmussen <hidden> · 2014-07-14
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Peter Zijlstra <peterz@infradead.org> · 2014-07-14
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Morten Rasmussen <hidden> · 2014-07-14
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Peter Zijlstra <peterz@infradead.org> · 2014-07-14
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-15
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Dietmar Eggemann <dietmar.eggemann@arm.com> · 2014-07-14
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Yuyang Du <hidden> · 2014-07-18
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Morten Rasmussen <hidden> · 2014-07-11
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-15
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Morten Rasmussen <hidden> · 2014-07-15
Re: [PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED" · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-15
[PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Peter Zijlstra <peterz@infradead.org> · 2014-07-10
Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-10
Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Peter Zijlstra <peterz@infradead.org> · 2014-07-11
Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-11
Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Peter Zijlstra <peterz@infradead.org> · 2014-07-14
Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-15
Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Peter Zijlstra <peterz@infradead.org> · 2014-07-10
Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-10
Re: [PATCH v3 08/12] sched: move cfs task on a CPU with higher capacity · Peter Zijlstra <peterz@infradead.org> · 2014-07-10
[PATCH v3 12/12] sched: add SD_PREFER_SIBLING for SMT level · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
[PATCH v3 11/12] sched: replace capacity_factor by utilization · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
[PATCH v3 10/12] sched: get CPU's utilization statistic · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
[PATCH v3 07/12] sched: test the cpu's capacity in wake affine · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
Re: [PATCH v3 07/12] sched: test the cpu's capacity in wake affine · Rik van Riel <hidden> · 2014-07-09
Re: [PATCH v3 07/12] sched: test the cpu's capacity in wake affine · Peter Zijlstra <peterz@infradead.org> · 2014-07-10
Re: [PATCH v3 07/12] sched: test the cpu's capacity in wake affine · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-10
[PATCH v3 05/12] ARM: topology: use new cpu_power interface · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
Re: [PATCH v3 05/12] ARM: topology: use new cpu_power interface · Rik van Riel <hidden> · 2014-07-09
Re: [PATCH v3 05/12] ARM: topology: use new cpu_power interface · Amit Kucheria <hidden> · 2014-07-09
Re: [PATCH v3 05/12] ARM: topology: use new cpu_power interface · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-09
[PATCH v3 04/12] sched: Allow all archs to set the power_orig · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
Re: [PATCH v3 04/12] sched: Allow all archs to set the power_orig · Rik van Riel <hidden> · 2014-07-09
Re: [PATCH v3 04/12] sched: Allow all archs to set the power_orig · Peter Zijlstra <peterz@infradead.org> · 2014-07-09
Re: [PATCH v3 04/12] sched: Allow all archs to set the power_orig · Vincent Guittot <vincent.guittot@linaro.org> · 2014-07-10
[PATCH v3 02/12] sched: remove a wake_affine condition · Vincent Guittot <vincent.guittot@linaro.org> · 2014-06-30
Re: [PATCH v3 02/12] sched: remove a wake_affine condition · Rik van Riel <hidden> · 2014-07-09

STALE4343d

From: vincent.guittot@linaro.org (Vincent Guittot)
Date: 2014-06-30 16:07:35
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>
---
 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

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