src/share/vm/gc_implementation/parNew/parNewGeneration.cpp

rev 4735 : 8015237: Parallelize string table scanning during strong root processing
Summary: Parallelize the scanning of the intern string table by having each GC worker claim a given number of buckets.
Reviewed-by:

*** 1,7 ****
  /*
!  * Copyright (c) 2001, 2012, 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, 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.
*** 620,630 ****
                                  true,  // is scavenging
                                  SharedHeap::ScanningOption(so),
                                  &par_scan_state.to_space_root_closure(),
                                  true,   // walk *all* scavengable nmethods
                                  &par_scan_state.older_gen_closure(),
!                                 &klass_scan_closure);
    par_scan_state.end_strong_roots();
  
    // "evacuate followers".
    par_scan_state.evacuate_followers_closure().do_void();
  }
--- 620,631 ----
                                  true,  // is scavenging
                                  SharedHeap::ScanningOption(so),
                                  &par_scan_state.to_space_root_closure(),
                                  true,   // walk *all* scavengable nmethods
                                  &par_scan_state.older_gen_closure(),
!                                 &klass_scan_closure,
!                                 worker_id);
    par_scan_state.end_strong_roots();
  
    // "evacuate followers".
    par_scan_state.evacuate_followers_closure().do_void();
  }