--- old/src/share/vm/memory/genMarkSweep.cpp	2013-06-05 10:56:45.000000000 +0200
+++ new/src/share/vm/memory/genMarkSweep.cpp	2013-06-05 10:56:44.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2013, 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
@@ -29,6 +29,10 @@
 #include "classfile/vmSymbols.hpp"
 #include "code/codeCache.hpp"
 #include "code/icBuffer.hpp"
+#include "gc_implementation/shared/gcHeapSummary.hpp"
+#include "gc_implementation/shared/gcTimer.hpp"
+#include "gc_implementation/shared/gcTrace.hpp"
+#include "gc_implementation/shared/gcTraceTime.hpp"
 #include "gc_interface/collectedHeap.inline.hpp"
 #include "memory/genCollectedHeap.hpp"
 #include "memory/genMarkSweep.hpp"
@@ -65,7 +69,9 @@
   _ref_processor = rp;
   rp->setup_policy(clear_all_softrefs);
 
-  TraceTime t1(GCCauseString("Full GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, gclog_or_tty);
+  GCTraceTime t1(GCCauseString("Full GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, NULL);
+
+  gch->trace_heap_before_gc(_gc_tracer);
 
   // When collecting the permanent generation Method*s may be moving,
   // so we either have to flush all bcp data or convert it into bci.
@@ -155,6 +161,8 @@
   // does not guarantee monotonicity.
   jlong now = os::javaTimeNanos() / NANOSECS_PER_MILLISEC;
   gch->update_time_of_last_gc(now);
+
+  gch->trace_heap_after_gc(_gc_tracer);
 }
 
 void GenMarkSweep::allocate_stacks() {
@@ -192,7 +200,7 @@
 void GenMarkSweep::mark_sweep_phase1(int level,
                                   bool clear_all_softrefs) {
   // Recursively traverse all live objects and mark them
-  TraceTime tm("phase 1", PrintGC && Verbose, true, gclog_or_tty);
+  GCTraceTime tm("phase 1", PrintGC && Verbose, true, _gc_timer);
   trace(" 1");
 
   GenCollectedHeap* gch = GenCollectedHeap::heap();
@@ -219,8 +227,10 @@
   // Process reference objects found during marking
   {
     ref_processor()->setup_policy(clear_all_softrefs);
-    ref_processor()->process_discovered_references(
-      &is_alive, &keep_alive, &follow_stack_closure, NULL);
+    const ReferenceProcessorStats& stats =
+      ref_processor()->process_discovered_references(
+        &is_alive, &keep_alive, &follow_stack_closure, NULL, _gc_timer);
+    gc_tracer()->report_gc_reference_stats(stats);
   }
 
   // This is the point where the entire marking should have completed.
@@ -240,6 +250,8 @@
 
   // Clean up unreferenced symbols in symbol table.
   SymbolTable::unlink();
+
+  gc_tracer()->report_object_count_after_gc(&is_alive);
 }
 
 
@@ -259,7 +271,7 @@
 
   GenCollectedHeap* gch = GenCollectedHeap::heap();
 
-  TraceTime tm("phase 2", PrintGC && Verbose, true, gclog_or_tty);
+  GCTraceTime tm("phase 2", PrintGC && Verbose, true, _gc_timer);
   trace("2");
 
   gch->prepare_for_compaction();
@@ -276,7 +288,7 @@
   GenCollectedHeap* gch = GenCollectedHeap::heap();
 
   // Adjust the pointers to reflect the new locations
-  TraceTime tm("phase 3", PrintGC && Verbose, true, gclog_or_tty);
+  GCTraceTime tm("phase 3", PrintGC && Verbose, true, _gc_timer);
   trace("3");
 
   // Need new claim bits for the pointer adjustment tracing.
@@ -331,7 +343,7 @@
   // to use a higher index (saved from phase2) when verifying perm_gen.
   GenCollectedHeap* gch = GenCollectedHeap::heap();
 
-  TraceTime tm("phase 4", PrintGC && Verbose, true, gclog_or_tty);
+  GCTraceTime tm("phase 4", PrintGC && Verbose, true, _gc_timer);
   trace("4");
 
   GenCompactClosure blk;