8214236: sun.gc.collector.2.name should be changed

Reviewed-by: pliden, tschatzl

src/hotspot/share/gc/cms/concurrentMarkSweepGeneration.cpp

@@ -636,8 +636,8 @@ CMSCollector::CMSCollector(ConcurrentMarkSweepGeneration* cmsGen,
   }
 
   NOT_PRODUCT(_overflow_counter = CMSMarkStackOverflowInterval;)
-  _gc_counters = new CollectorCounters("CMS", 1);
-  _cgc_counters = new CollectorCounters("CMS stop-the-world phases", 2);
+  _gc_counters = new CollectorCounters("CMS full collection pauses", 1);
+  _cgc_counters = new CollectorCounters("CMS concurrent cycle pauses", 2);
   _completed_initialization = true;
   _inter_sweep_timer.start();  // start of time
 }

src/hotspot/share/gc/cms/parNewGeneration.cpp

@@ -624,7 +624,7 @@ void ParNewGenTask::work(uint worker_id) {
 }
 
 ParNewGeneration::ParNewGeneration(ReservedSpace rs, size_t initial_byte_size)
-  : DefNewGeneration(rs, initial_byte_size, "PCopy"),
+  : DefNewGeneration(rs, initial_byte_size, "CMS young collection pauses"),
   _plab_stats("Young", YoungPLABSize, PLABWeight),
   _overflow_list(NULL),
   _is_alive_closure(this)

src/hotspot/share/gc/g1/g1MonitoringSupport.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -119,15 +119,15 @@ G1MonitoringSupport::G1MonitoringSupport(G1CollectedHeap* g1h) :
   //  name "collector.0".  In a generational collector this would be the
   // young generation collection.
   _incremental_collection_counters =
-    new CollectorCounters("G1 incremental collections", 0);
+    new CollectorCounters("G1 young collection pauses", 0);
   //   name "collector.1".  In a generational collector this would be the
   // old generation collection.
   _full_collection_counters =
-    new CollectorCounters("G1 stop-the-world full collections", 1);
+    new CollectorCounters("G1 full collection pauses", 1);
   //   name "collector.2".  In a generational collector this would be the
   // STW phases in concurrent collection.
   _conc_collection_counters =
-    new CollectorCounters("G1 stop-the-world phases", 2);
+    new CollectorCounters("G1 concurrent cycle pauses", 2);
 
   // "Generation" and "Space" counters.
   //

src/hotspot/share/gc/parallel/psMarkSweep.cpp

@@ -72,7 +72,7 @@ SpanSubjectToDiscoveryClosure PSMarkSweep::_span_based_discoverer;
 void PSMarkSweep::initialize() {
   _span_based_discoverer.set_span(ParallelScavengeHeap::heap()->reserved_region());
   set_ref_processor(new ReferenceProcessor(&_span_based_discoverer));     // a vanilla ref proc
-  _counters = new CollectorCounters("PSMarkSweep", 1);
+  _counters = new CollectorCounters("Serial full collection pauses", 1);
   MarkSweep::initialize();
 }
 

src/hotspot/share/gc/parallel/psParallelCompact.cpp

@@ -883,7 +883,7 @@ void PSParallelCompact::post_initialize() {
     new PCReferenceProcessor(&_span_based_discoverer,
                              &_is_alive_closure); // non-header is alive closure
 
-  _counters = new CollectorCounters("PSParallelCompact", 1);
+  _counters = new CollectorCounters("Parallel full collection pauses", 1);
 
   // Initialize static fields in ParCompactionManager.
   ParCompactionManager::initialize(mark_bitmap());

src/hotspot/share/gc/parallel/psScavenge.cpp

@@ -754,5 +754,5 @@ void PSScavenge::initialize() {
   // Cache the cardtable
   _card_table = heap->card_table();
 
-  _counters = new CollectorCounters("PSScavenge", 0);
+  _counters = new CollectorCounters("Parallel young collection pauses", 0);
 }

src/hotspot/share/gc/serial/defNewGeneration.hpp

@@ -192,7 +192,7 @@ protected:
 
  public:
   DefNewGeneration(ReservedSpace rs, size_t initial_byte_size,
-                   const char* policy="Copy");
+                   const char* policy="Serial young collection pauses");
 
   virtual void ref_processor_init();
 

src/hotspot/share/gc/serial/tenuredGeneration.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -65,7 +65,7 @@ TenuredGeneration::TenuredGeneration(ReservedSpace rs,
   _gen_counters = new GenerationCounters(gen_name, 1, 1,
       gcp->min_old_size(), gcp->max_old_size(), &_virtual_space);
 
-  _gc_counters = new CollectorCounters("MSC", 1);
+  _gc_counters = new CollectorCounters("Serial full collection pauses", 1);
 
   _space_counters = new CSpaceCounters(gen_name, 0,
                                        _virtual_space.reserved_size(),

src/hotspot/share/gc/z/zServiceability.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -72,8 +72,8 @@ ZServiceabilityCounters::ZServiceabilityCounters(size_t min_capacity, size_t max
                     max_capacity /* max_capacity */,
                     min_capacity /* init_capacity */),
     // gc.collector.2
-    _collector_counters("stop-the-world" /* name */,
-                        2                /* ordinal */) {}
+    _collector_counters("Z concurrent cycle pauses" /* name */,
+                        2                           /* ordinal */) {}
 
 CollectorCounters* ZServiceabilityCounters::collector_counters() {
   return &_collector_counters;