Modify certain decisions in load_balance to use the imbalance amount as calculated by the PJT's metric.
Signed-off-by: Preeti U Murthy preeti@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);