diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index f00fe85e6997..538e1caedffe 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -1598,6 +1598,28 @@ TRACE_EVENT_CONDITION(sched_overutilized,
 		__entry->overutilized ? 1 : 0, __entry->cpulist)
 );
 
+TRACE_EVENT(sched_capacity_update,
+
+	TP_PROTO(int cpu),
+
+	TP_ARGS(cpu),
+
+	TP_STRUCT__entry(
+		__field(unsigned int, cpu)
+		__field(unsigned int, capacity)
+		__field(unsigned int, capacity_orig)
+	),
+
+	TP_fast_assign(
+		__entry->cpu			= cpu;
+		__entry->capacity		= capacity_of(cpu);
+		__entry->capacity_orig		= capacity_orig_of(cpu);
+	),
+
+	TP_printk("cpu=%d capacity=%u capacity_orig=%u",
+		__entry->cpu, __entry->capacity, __entry->capacity_orig)
+);
+
 /*
  * Tracepoint for sched_get_nr_running_avg
  */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 7c43d2391e2e..b23e9a805e37 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -9544,19 +9544,29 @@ static void update_cpu_capacity(struct sched_domain *sd, int cpu)
 {
 	unsigned long capacity = arch_scale_cpu_capacity(sd, cpu);
 	struct sched_group *sdg = sd->groups;
+	bool update = false;
 
 	capacity *= arch_scale_max_freq_capacity(sd, cpu);
 	capacity >>= SCHED_CAPACITY_SHIFT;
 
 	capacity = min(capacity, thermal_cap(cpu));
-	cpu_rq(cpu)->cpu_capacity_orig = capacity;
+	if (cpu_rq(cpu)->cpu_capacity_orig != capacity) {
+		cpu_rq(cpu)->cpu_capacity_orig = capacity;
+		update = true;
+	}
 
 	capacity = scale_rt_capacity(cpu, capacity);
 
 	if (!capacity)
 		capacity = 1;
 
-	cpu_rq(cpu)->cpu_capacity = capacity;
+	if (cpu_rq(cpu)->cpu_capacity != capacity) {
+		cpu_rq(cpu)->cpu_capacity = capacity;
+		update = true;
+	}
+	if (update)
+		trace_sched_capacity_update(cpu);
+
 	sdg->sgc->capacity = capacity;
 	sdg->sgc->min_capacity = capacity;
 	sdg->sgc->max_capacity = capacity;