davidlt/kernel-ark
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sched/fair: Trigger asym_packing during idle load balance

Browse Source 
Newly idle load balancing is not always triggered when a CPU becomes idle.
This prevents the scheduler from getting a chance to migrate the task
for asym packing.

Enable active migration during idle load balance too.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: valentin.schneider@arm.com
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Vincent Guittot 2018-12-14 17:01:56 +01:00 committed by Ingo Molnar
parent 81a930d3a6
commit a062d16449
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/sched/fair.c
View File

@ -8832,7 +8832,7 @@ static int need_active_balance(struct lb_env *env)
{
struct sched_domain *sd = env->sd;
if (env->idle == CPU_NEWLY_IDLE) {
if (env->idle != CPU_NOT_IDLE) {
/*
* ASYM_PACKING needs to force migrate tasks from busy but