src/share/vm/gc_implementation/g1/heapRegion.cpp

rev 8910 : full patch for jfr

@@ -1,7 +1,7 @@
 /*
- * 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -29,10 +29,11 @@
 #include "gc_implementation/g1/g1OopClosures.inline.hpp"
 #include "gc_implementation/g1/heapRegion.inline.hpp"
 #include "gc_implementation/g1/heapRegionBounds.inline.hpp"
 #include "gc_implementation/g1/heapRegionRemSet.hpp"
 #include "gc_implementation/g1/heapRegionManager.inline.hpp"
+#include "gc_implementation/g1/heapRegionTracer.hpp"
 #include "gc_implementation/shared/liveRange.hpp"
 #include "memory/genOopClosures.inline.hpp"
 #include "memory/iterator.hpp"
 #include "memory/space.inline.hpp"
 #include "oops/oop.inline.hpp"

@@ -215,11 +216,13 @@
   assert(!isHumongous(), "sanity / pre-condition");
   assert(end() == _orig_end,
          "Should be normal before the humongous object allocation");
   assert(top() == bottom(), "should be empty");
   assert(bottom() <= new_top && new_top <= new_end, "pre-condition");
-
+  if (EnableJFR) {
+    report_region_type_change(G1HeapRegionTraceType::StartsHumongous);
+  }
   _type.set_starts_humongous();
   _humongous_start_region = this;
 
   set_end(new_end);
   _offsets.set_for_starts_humongous(new_top);

@@ -229,11 +232,13 @@
   assert(!isHumongous(), "sanity / pre-condition");
   assert(end() == _orig_end,
          "Should be normal before the humongous object allocation");
   assert(top() == bottom(), "should be empty");
   assert(first_hr->startsHumongous(), "pre-condition");
-
+  if (EnableJFR) {
+    report_region_type_change(G1HeapRegionTraceType::ContinuesHumongous);
+  }
   _type.set_continues_humongous();
   _humongous_start_region = first_hr;
 }
 
 void HeapRegion::clear_humongous() {

@@ -301,10 +306,20 @@
   hr_clear(false /*par*/, false /*clear_space*/);
   set_top(bottom());
   record_timestamp();
 }
 
+void HeapRegion::report_region_type_change(G1HeapRegionTraceType::Type to) {
+  assert(EnableJFR, "sanity check");
+  HeapRegionTracer::send_region_type_change(_hrm_index,
+                                            get_trace_type(),
+                                            to,
+                                            (uintptr_t)bottom(),
+                                            used());
+}
+
+
 CompactibleSpace* HeapRegion::next_compaction_space() const {
   return G1CollectedHeap::heap()->next_compaction_region(this);
 }
 
 void HeapRegion::note_self_forwarding_removal_start(bool during_initial_mark,