diff --git a/include/linux/sched.h b/include/linux/sched.h
index 166144c04ef6..0e374d69e431 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -275,6 +275,21 @@ struct load_weight {
 	u32				inv_weight;
 };
 
+/**
+ * Estimation Utilization for FAIR tasks.
+ *
+ * Support data structure to track an Exponential Weighted Moving Average
+ * (EWMA) of a FAIR task's utilization. New samples are added to the moving
+ * average each time a task completes an activation. Sample's weight is
+ * chosen so that the EWMA will be relatively insensitive to transient changes
+ * to the task's workload.
+ */
+struct util_est {
+	unsigned int			enqueued;
+	unsigned int			ewma;
+#define UTIL_EST_WEIGHT_SHIFT		2
+};
+
 /*
  * The load_avg/util_avg accumulates an infinite geometric series
  * (see __update_load_avg() in kernel/sched/fair.c).
@@ -336,6 +351,7 @@ struct sched_avg {
 	unsigned long			load_avg;
 	unsigned long			runnable_load_avg;
 	unsigned long			util_avg;
+	struct util_est			util_est;
 };
 
 struct sched_statistics {
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 1ca0130ed4f9..d4eb5532ea6b 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -567,6 +567,8 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
 			cfs_rq->avg.runnable_load_avg);
 	SEQ_printf(m, "  .%-30s: %lu\n", "util_avg",
 			cfs_rq->avg.util_avg);
+	SEQ_printf(m, "  .%-30s: %u\n", "util_est_enqueued",
+			cfs_rq->avg.util_est.enqueued);
 	SEQ_printf(m, "  .%-30s: %ld\n", "removed.load_avg",
 			cfs_rq->removed.load_avg);
 	SEQ_printf(m, "  .%-30s: %ld\n", "removed.util_avg",
@@ -1018,6 +1020,8 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
 	P(se.avg.runnable_load_avg);
 	P(se.avg.util_avg);
 	P(se.avg.last_update_time);
+	P(se.avg.util_est.ewma);
+	P(se.avg.util_est.enqueued);
 #endif
 	P(policy);
 	P(prio);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 7b6535987500..118f49c39b60 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5193,6 +5193,20 @@ static inline void hrtick_update(struct rq *rq)
 }
 #endif
 
+static inline unsigned long task_util(struct task_struct *p);
+static inline unsigned long _task_util_est(struct task_struct *p);
+
+static inline void util_est_enqueue(struct task_struct *p)
+{
+	struct cfs_rq *cfs_rq = &task_rq(p)->cfs;
+
+	if (!sched_feat(UTIL_EST))
+		return;
+
+	/* Update root cfs_rq's estimated utilization */
+	cfs_rq->avg.util_est.enqueued += _task_util_est(p);
+}
+
 /*
  * The enqueue_task method is called before nr_running is
  * increased. Here we update the fair scheduling stats and
@@ -5245,9 +5259,85 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
 	if (!se)
 		add_nr_running(rq, 1);
 
+	util_est_enqueue(p);
 	hrtick_update(rq);
 }
 
+/*
+ * Check if the specified (signed) value is within a specified margin,
+ * based on the observation that:
+ *     abs(x) < y := (unsigned)(x + y - 1) < (2 * y - 1)
+ */
+static inline bool within_margin(long value, unsigned int margin)
+{
+	return ((unsigned int)(value + margin - 1) < (2 * margin - 1));
+}
+
+static inline void util_est_dequeue(struct task_struct *p, int flags)
+{
+	struct cfs_rq *cfs_rq = &task_rq(p)->cfs;
+	unsigned long util_last;
+	long last_ewma_diff;
+	unsigned long ewma;
+	long util_est = 0;
+
+	if (!sched_feat(UTIL_EST))
+		return;
+
+	/*
+	 * Update root cfs_rq's estimated utilization
+	 *
+	 * If *p is the last task then the root cfs_rq's estimated utilization
+	 * of a CPU is 0 by definition.
+	 */
+	if (cfs_rq->nr_running) {
+		util_est  = READ_ONCE(cfs_rq->avg.util_est.enqueued);
+		util_est -= min_t(long, util_est, _task_util_est(p));
+	}
+	WRITE_ONCE(cfs_rq->avg.util_est.enqueued, util_est);
+
+	/*
+	 * Skip update of task's estimated utilization when the task has not
+	 * yet completed an activation, e.g. being migrated.
+	 */
+	if (!(flags & DEQUEUE_SLEEP))
+		return;
+
+	ewma = READ_ONCE(p->se.avg.util_est.ewma);
+	util_last = task_util(p);
+
+	/*
+	 * Skip update of task's estimated utilization when its EWMA is
+	 * already ~1% close to its last activation value.
+	 */
+	last_ewma_diff = util_last - ewma;
+	if (within_margin(last_ewma_diff, (SCHED_CAPACITY_SCALE / 100)))
+		return;
+
+	/*
+	 * Update Task's estimated utilization
+	 *
+	 * When *p completes an activation we can consolidate another sample
+	 * about the task size. This is done by storing the last PELT value
+	 * for this task and using this value to load another sample in the
+	 * exponential weighted moving average:
+	 *
+	 *  ewma(t) = w *  task_util(p) + (1-w) * ewma(t-1)
+	 *          = w *  task_util(p) +         ewma(t-1)  - w * ewma(t-1)
+	 *          = w * (task_util(p) -         ewma(t-1)) +     ewma(t-1)
+	 *          = w * (      last_ewma_diff            ) +     ewma(t-1)
+	 *          = w * (last_ewma_diff  +  ewma(t-1) / w)
+	 *
+	 * Where 'w' is the weight of new samples, which is configured to be
+	 * 0.25, thus making w=1/4 ( >>= UTIL_EST_WEIGHT_SHIFT)
+	 */
+	ewma   = last_ewma_diff + (ewma << UTIL_EST_WEIGHT_SHIFT);
+	ewma >>= UTIL_EST_WEIGHT_SHIFT;
+
+	WRITE_ONCE(p->se.avg.util_est.ewma, ewma);
+	WRITE_ONCE(p->se.avg.util_est.enqueued, util_last);
+}
+
 static void set_next_buddy(struct sched_entity *se);
 
 /*
@@ -5304,6 +5394,7 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags)
 	if (!se)
 		sub_nr_running(rq, 1);
 
+	util_est_dequeue(p, flags);
 	hrtick_update(rq);
 }
 
@@ -5767,7 +5858,6 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p,
 	return affine;
 }
 
-static inline unsigned long task_util(struct task_struct *p);
 static unsigned long cpu_util_wake(int cpu, struct task_struct *p);
 
 static unsigned long capacity_spare_wake(int cpu, struct task_struct *p)
@@ -6262,6 +6352,12 @@ static inline unsigned long task_util(struct task_struct *p)
 	return p->se.avg.util_avg;
 }
 
+
+static inline unsigned long _task_util_est(struct task_struct *p)
+{
+	return max(p->se.avg.util_est.ewma, p->se.avg.util_est.enqueued);
+}
+
 /*
  * cpu_util_wake: Compute cpu utilization with any contributions from
  * the waking task p removed.
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index 9552fd5854bf..c459a4b61544 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -85,3 +85,8 @@ SCHED_FEAT(ATTACH_AGE_LOAD, true)
 SCHED_FEAT(WA_IDLE, true)
 SCHED_FEAT(WA_WEIGHT, true)
 SCHED_FEAT(WA_BIAS, true)
+
+/*
+ * UtilEstimation. Use estimated CPU utilization.
+ */
+SCHED_FEAT(UTIL_EST, false)
