diff -r b342deab639f -r 1ad7c590a6e7 src/hotspot/share/memory/metaspace.cpp
--- a/src/hotspot/share/memory/metaspace.cpp	Fri Mar 01 10:15:04 2019 +0000
+++ b/src/hotspot/share/memory/metaspace.cpp	Sun Feb 10 09:10:42 2019 +0100
@@ -440,7 +440,6 @@
   if (chunk_manager == NULL) {
     return 0;
   }
-  chunk_manager->slow_verify();
   return chunk_manager->free_chunks_total_words();
 }
 
@@ -793,6 +792,13 @@
   out->print_cr("Number of times virtual space nodes were expanded: " UINTX_FORMAT ".", g_internal_statistics.num_committed_space_expanded);
   out->print_cr("Number of deallocations: " UINTX_FORMAT " (" UINTX_FORMAT " external).", g_internal_statistics.num_deallocs, g_internal_statistics.num_external_deallocs);
   out->print_cr("Allocations from deallocated blocks: " UINTX_FORMAT ".", g_internal_statistics.num_allocs_from_deallocated_blocks);
+  out->print_cr("Number of chunks added to freelist: " UINTX_FORMAT ".",
+                g_internal_statistics.num_chunks_added_to_freelist);
+  out->print_cr("Number of chunks removed from freelist: " UINTX_FORMAT ".",
+                g_internal_statistics.num_chunks_removed_from_freelist);
+  out->print_cr("Number of chunk merges: " UINTX_FORMAT ", split-ups: " UINTX_FORMAT ".",
+                g_internal_statistics.num_chunk_merges, g_internal_statistics.num_chunk_splits);
+
   out->cr();
 #endif
 
@@ -844,10 +850,12 @@
 }
 
 void MetaspaceUtils::verify_free_chunks() {
-  Metaspace::chunk_manager_metadata()->verify();
+#ifdef ASSERT
+  Metaspace::chunk_manager_metadata()->verify(false);
   if (Metaspace::using_class_space()) {
-    Metaspace::chunk_manager_class()->verify();
+    Metaspace::chunk_manager_class()->verify(false);
   }
+#endif
 }
 
 void MetaspaceUtils::verify_metrics() {