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Date: Mon, 23 Jun 2014 11:46:15 -0400 From: riel@...hat.com To: linux-kernel@...r.kernel.org Cc: peterz@...radead.org, mingo@...nel.org, chegu_vinod@...com, mgorman@...e.de Subject: [PATCH 4/7] sched,numa: simplify task_numa_compare From: Rik van Riel <riel@...hat.com> When a task is part of a numa_group, the comparison should always use the group weight, in order to make workloads converge. Signed-off-by: Rik van Riel <riel@...hat.com> --- kernel/sched/fair.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 41b75a6..2eb845c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1154,7 +1154,7 @@ static void task_numa_compare(struct task_numa_env *env, struct task_group *tg; long src_load, dst_load; long load; - long imp = (groupimp > 0) ? groupimp : taskimp; + long imp = env->p->numa_group ? groupimp : taskimp; rcu_read_lock(); cur = ACCESS_ONCE(dst_rq->curr); @@ -1192,11 +1192,6 @@ static void task_numa_compare(struct task_numa_env *env, * itself (not part of a group), use the task weight * instead. */ - if (env->p->numa_group) - imp = groupimp; - else - imp = taskimp; - if (cur->numa_group) imp += group_weight(cur, env->src_nid) - group_weight(cur, env->dst_nid); -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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