src/share/vm/code/codeCache.cpp

rev 4773 : 8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -43,10 +43,11 @@
 #include "runtime/arguments.hpp"
 #include "runtime/icache.hpp"
 #include "runtime/java.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "services/memoryService.hpp"
+#include "trace/tracing.hpp"
 #include "utilities/xmlstream.hpp"
 
 // Helper class for printing in CodeCache
 
 class CodeBlob_sizes {

@@ -112,11 +113,10 @@
       code_size        += cb->code_size();
     }
   }
 };
 
-
 // CodeCache implementation
 
 CodeHeap * CodeCache::_heap = new CodeHeap();
 int CodeCache::_number_of_blobs = 0;
 int CodeCache::_number_of_adapters = 0;

@@ -124,10 +124,11 @@
 int CodeCache::_number_of_nmethods_with_dependencies = 0;
 bool CodeCache::_needs_cache_clean = false;
 nmethod* CodeCache::_scavenge_root_nmethods = NULL;
 nmethod* CodeCache::_saved_nmethods = NULL;
 
+int CodeCache::_codemem_full_count = 0;
 
 CodeBlob* CodeCache::first() {
   assert_locked_or_safepoint(CodeCache_lock);
   return (CodeBlob*)_heap->first();
 }

@@ -827,10 +828,26 @@
   FOR_ALL_ALIVE_BLOBS(p) {
     p->verify();
   }
 }
 
+void CodeCache::report_codemem_full() {
+  _codemem_full_count++;
+  EventCodeCacheFull event;
+  if (event.should_commit()) {
+    event.set_startAddress((u8)low_bound());
+    event.set_commitedTopAddress((u8)high());
+    event.set_reservedTopAddress((u8)high_bound());
+    event.set_entryCount(nof_blobs());
+    event.set_methodCount(nof_nmethods());
+    event.set_adaptorCount(nof_adapters());
+    event.set_unallocatedCapacity(unallocated_capacity()/K);
+    event.set_fullCount(_codemem_full_count);
+    event.commit();
+  }
+}
+
 //------------------------------------------------------------------------------------------------
 // Non-product version
 
 #ifndef PRODUCT