--- a/src/hotspot/share/gc/g1/g1CollectedHeap.cpp	Fri Aug 30 14:58:40 2019 -0400
+++ b/src/hotspot/share/gc/g1/g1CollectedHeap.cpp	Fri Aug 30 15:36:44 2019 -0400
@@ -1948,12 +1948,8 @@
 
 void G1CollectedHeap::iterate_dirty_card_closure(G1CardTableEntryClosure* cl, uint worker_i) {
   G1DirtyCardQueueSet& dcqs = G1BarrierSet::dirty_card_queue_set();
-  size_t n_completed_buffers = 0;
-  while (dcqs.apply_closure_during_gc(cl, worker_i)) {
-    n_completed_buffers++;
-  }
+  while (dcqs.apply_closure_during_gc(cl, worker_i)) {}
   assert(dcqs.num_cards() == 0, "Completed buffers exist!");
-  phase_times()->record_thread_work_item(G1GCPhaseTimes::MergeLB, worker_i, n_completed_buffers, G1GCPhaseTimes::MergeLBProcessedBuffers);
 }
 
 // Computes the sum of the storage used by the various regions.

--- a/src/hotspot/share/gc/g1/g1GCPhaseTimes.cpp	Fri Aug 30 14:58:40 2019 -0400
+++ b/src/hotspot/share/gc/g1/g1GCPhaseTimes.cpp	Fri Aug 30 15:36:44 2019 -0400
@@ -125,8 +125,6 @@
   _opt_scan_hr_used_memory = new WorkerDataArray<size_t>(max_gc_threads, "Used Memory:");
   _gc_par_phases[OptScanHR]->link_thread_work_items(_opt_scan_hr_used_memory, ScanHRUsedMemory);
 
-  _merge_lb_processed_buffers = new WorkerDataArray<size_t>(max_gc_threads, "Processed Buffers:");
-  _gc_par_phases[MergeLB]->link_thread_work_items(_merge_lb_processed_buffers, MergeLBProcessedBuffers);
   _merge_lb_dirty_cards = new WorkerDataArray<size_t>(max_gc_threads, "Dirty Cards:");
   _gc_par_phases[MergeLB]->link_thread_work_items(_merge_lb_dirty_cards, MergeLBDirtyCards);
   _merge_lb_skipped_cards = new WorkerDataArray<size_t>(max_gc_threads, "Skipped Cards:");

--- a/src/hotspot/share/gc/g1/g1GCPhaseTimes.hpp	Fri Aug 30 14:58:40 2019 -0400
+++ b/src/hotspot/share/gc/g1/g1GCPhaseTimes.hpp	Fri Aug 30 15:36:44 2019 -0400
@@ -106,7 +106,6 @@
   };
 
   enum GCMergeLBWorkItems {
-    MergeLBProcessedBuffers,
     MergeLBDirtyCards,
     MergeLBSkippedCards
   };
@@ -129,7 +128,6 @@
   WorkerDataArray<size_t>* _merge_hcc_dirty_cards;
   WorkerDataArray<size_t>* _merge_hcc_skipped_cards;
 
-  WorkerDataArray<size_t>* _merge_lb_processed_buffers;
   WorkerDataArray<size_t>* _merge_lb_dirty_cards;
   WorkerDataArray<size_t>* _merge_lb_skipped_cards;
 

--- a/test/hotspot/jtreg/gc/g1/TestGCLogMessages.java	Fri Aug 30 14:58:40 2019 -0400
+++ b/test/hotspot/jtreg/gc/g1/TestGCLogMessages.java	Fri Aug 30 15:36:44 2019 -0400
@@ -105,7 +105,6 @@
         new LogMessageWithLevel("Merged Coarse", Level.DEBUG),
         new LogMessageWithLevel("Hot Card Cache", Level.DEBUG),
         new LogMessageWithLevel("Log Buffers", Level.DEBUG),
-        new LogMessageWithLevel("Processed Buffers", Level.DEBUG),
         new LogMessageWithLevel("Dirty Cards", Level.DEBUG),
         new LogMessageWithLevel("Skipped Cards", Level.DEBUG),
         // Scan Heap Roots