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 ****
  /*
!  * 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * 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.
*** 1655,1664 ****
--- 1655,1667 ----
    // 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