diff options
Diffstat (limited to 'meta-eas/recipes-kernel/linux/linux-renesas/0081-SPLIT-sched-fair-Don-t-load-balance-from-group_other.patch')
| -rw-r--r-- | meta-eas/recipes-kernel/linux/linux-renesas/0081-SPLIT-sched-fair-Don-t-load-balance-from-group_other.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/meta-eas/recipes-kernel/linux/linux-renesas/0081-SPLIT-sched-fair-Don-t-load-balance-from-group_other.patch b/meta-eas/recipes-kernel/linux/linux-renesas/0081-SPLIT-sched-fair-Don-t-load-balance-from-group_other.patch new file mode 100644 index 0000000..1258e93 --- /dev/null +++ b/meta-eas/recipes-kernel/linux/linux-renesas/0081-SPLIT-sched-fair-Don-t-load-balance-from-group_other.patch @@ -0,0 +1,38 @@ +From 28e38963fbe539c9804d9132aa3613ead32ee330 Mon Sep 17 00:00:00 2001 +From: Brendan Jackman <brendan.jackman@arm.com> +Date: Wed, 15 Feb 2017 17:17:26 +0000 +Subject: [PATCH 81/92] SPLIT: sched/fair: Don't load balance from group_other + to groups without spare capacity + +This is split out from 885677858fd "sched: Consider misfit tasks when +load-balancing" from lsk-4.4-armlt. The rest of that patch will follow, this is +separated for ease of examination and discussion. + +(cherry picked from commit a3e504284acbf3dd12ceec8ebcabaee1892f876e) +Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com> +--- + kernel/sched/fair.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c +index fea3ca8..cf60d93 100644 +--- a/kernel/sched/fair.c ++++ b/kernel/sched/fair.c +@@ -7750,6 +7750,14 @@ static bool update_sd_pick_busiest(struct lb_env *env, + if (sgs->group_type < busiest->group_type) + return false; + ++ /* ++ * Candidate sg doesn't face any serious load-balance problems ++ * so don't pick it if the local sg is already filled up. ++ */ ++ if (sgs->group_type == group_other && ++ !group_has_capacity(env, &sds->local_stat)) ++ return false; ++ + if (sgs->avg_load <= busiest->avg_load) + return false; + +-- +1.9.1 + |