src/share/vm/memory/genCollectedHeap.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 +1,7 @@
 /*
- * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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.

@@ -596,21 +596,24 @@
                          bool is_scavenging,
                          SharedHeap::ScanningOption so,
                          OopsInGenClosure* not_older_gens,
                          bool do_code_roots,
                          OopsInGenClosure* older_gens,
-                         KlassClosure* klass_closure) {
+                         KlassClosure* klass_closure,
+                         uint worker_id) {
   // General strong roots.
 
   if (!do_code_roots) {
     SharedHeap::process_strong_roots(activate_scope, is_scavenging, so,
-                                     not_older_gens, NULL, klass_closure);
+                                     not_older_gens, NULL, klass_closure,
+                                     worker_id);
   } else {
     bool do_code_marking = (activate_scope || nmethod::oops_do_marking_is_active());
     CodeBlobToOopClosure code_roots(not_older_gens, /*do_marking=*/ do_code_marking);
     SharedHeap::process_strong_roots(activate_scope, is_scavenging, so,
-                                     not_older_gens, &code_roots, klass_closure);
+                                     not_older_gens, &code_roots, klass_closure,
+                                     worker_id);
   }
 
   if (younger_gens_as_roots) {
     if (!_gen_process_strong_tasks->is_task_claimed(GCH_PS_younger_gens)) {
       for (int i = 0; i < level; i++) {