Modify certain decisions in load_balance to use the imbalance
amount as calculated by the PJT's metric.
Signed-off-by: Preeti U Murthy <pre...@linux.vnet.ibm.com>
---
kernel/sched/fair.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index bd7b69d..68a6b1d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5284,7 +5284,10 @@ more_balance:
* moreover subsequent load balance cycles should correct the
* excess load moved.
*/
- if ((env.flags & LBF_SOME_PINNED) && env.imbalance > 0 &&
+ /*
+ * The following decision based on PJT's metric
+ */
+ if ((env.flags & LBF_SOME_PINNED) && env.load_imbalance > 0 &&
lb_iterations++ < max_lb_iterations) {
env.dst_rq = cpu_rq(env.new_dst_cpu);
--
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