diff --git a/src/counters.h b/src/counters.h
index d8f350b278..9fa90fa170 100644
--- a/src/counters.h
+++ b/src/counters.h
@@ -991,12 +991,13 @@ class RuntimeCallTimerScope {
 };
 
 #define HISTOGRAM_RANGE_LIST(HR)                                              \
-  /* Generic range histograms */                                              \
+  /* Generic range histograms: HR(name, caption, min, max, num_buckets) */    \
   HR(detached_context_age_in_gc, V8.DetachedContextAgeInGC, 0, 20, 21)        \
   HR(code_cache_reject_reason, V8.CodeCacheRejectReason, 1, 6, 6)             \
   HR(errors_thrown_per_context, V8.ErrorsThrownPerContext, 0, 200, 20)        \
   HR(debug_feature_usage, V8.DebugFeatureUsage, 1, 7, 7)                      \
   HR(incremental_marking_reason, V8.GCIncrementalMarkingReason, 0, 21, 22)    \
+  HR(incremental_marking_sum, V8.GCIncrementalMarkingSum, 0, 10000, 101)      \
   HR(mark_compact_reason, V8.GCMarkCompactReason, 0, 21, 22)                  \
   HR(scavenge_reason, V8.GCScavengeReason, 0, 21, 22)                         \
   HR(young_generation_handling, V8.GCYoungGenerationHandling, 0, 2, 3)        \
diff --git a/src/heap/gc-tracer.cc b/src/heap/gc-tracer.cc
index 287f62dea0..8bcf25b0e0 100644
--- a/src/heap/gc-tracer.cc
+++ b/src/heap/gc-tracer.cc
@@ -217,6 +217,10 @@ void GCTracer::Start(GarbageCollector collector,
 }
 
 void GCTracer::ResetIncrementalMarkingCounters() {
+  if (incremental_marking_duration_ > 0) {
+    heap_->isolate()->counters()->incremental_marking_sum()->AddSample(
+        static_cast<int>(incremental_marking_duration_));
+  }
   incremental_marking_bytes_ = 0;
   incremental_marking_duration_ = 0;
   for (int i = 0; i < Scope::NUMBER_OF_INCREMENTAL_SCOPES; i++) {