diff -Naur a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h --- a/include/linux/sched/sysctl.h 2016-08-20 09:09:38.000000000 -0700 +++ b/include/linux/sched/sysctl.h 2016-09-01 14:52:39.335459615 -0700 @@ -39,6 +39,7 @@ extern unsigned int sysctl_sched_min_granularity; extern unsigned int sysctl_sched_wakeup_granularity; extern unsigned int sysctl_sched_child_runs_first; +extern unsigned int sysctl_sched_weighted_cpuload_uses_rla; enum sched_tunable_scaling { SCHED_TUNABLESCALING_NONE, diff -Naur a/kernel/sched/fair.c b/kernel/sched/fair.c --- a/kernel/sched/fair.c 2016-08-20 09:09:38.000000000 -0700 +++ b/kernel/sched/fair.c 2016-09-01 14:52:39.339459615 -0700 @@ -35,6 +35,10 @@ #include "sched.h" +#ifdef CONFIG_SMP +unsigned int sysctl_sched_weighted_cpuload_uses_rla = 1; +#endif + /* * Targeted preemption latency for CPU-bound tasks: * (default: 6ms * (1 + ilog(ncpus)), units: nanoseconds) @@ -4360,7 +4364,9 @@ /* Used instead of source_load when we know the type == 0 */ static unsigned long weighted_cpuload(const int cpu) { - return cfs_rq_runnable_load_avg(&cpu_rq(cpu)->cfs); + if (sysctl_sched_weighted_cpuload_uses_rla) + return cfs_rq_runnable_load_avg(&cpu_rq(cpu)->cfs); + return cpu_rq(cpu)->load.weight; } #ifdef CONFIG_NO_HZ_COMMON diff -Naur a/kernel/sysctl.c b/kernel/sysctl.c --- a/kernel/sysctl.c 2016-08-20 09:09:38.000000000 -0700 +++ b/kernel/sysctl.c 2016-09-01 14:52:39.339459615 -0700 @@ -350,6 +350,13 @@ .mode = 0644, .proc_handler = proc_dointvec, }, + { + .procname = "sched_weighted_cpuload_uses_rla", + .data = &sysctl_sched_weighted_cpuload_uses_rla, + .maxlen = sizeof(unsigned int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, #endif /* CONFIG_SMP */ #ifdef CONFIG_NUMA_BALANCING {