src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp

rev 5920 : 8035406: Improve data structure for Code Cache remembered sets
Summary: Change the code cache remembered sets data structure from a GrowableArray to a chunked list of nmethods. This makes the data structure more amenable to parallelization, and decreases freeing time.
Reviewed-by:

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2014, 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.

@@ -1655,10 +1655,13 @@
   // in the collection set to regions in to-space. In the event
   // of an evacuation failure, nmethods that reference objects
   // that were not successfully evacuated are not migrated.
   void migrate_strong_code_roots();
 
+  // Free up superfluous code root memory.
+  void purge_code_root_memory();
+
   // During an initial mark pause, mark all the code roots that
   // point into regions *not* in the collection set.
   void mark_strong_code_roots(uint worker_id);
 
   // Rebuild the strong code root lists for each region