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diff src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp @ 13438:ad72068ac41e

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8028993: Full collections with ParallelScavenge slower in JDK 8 compared to 7u40 Summary: Reducing the number of calls to follow_class_loader to speed up the marking phase. Also removed some unnecessary calls to adjust_klass. Reviewed-by: stefank, jmasa, mgerdin
author sjohanss
date Tue, 10 Dec 2013 10:31:00 +0100
parents f2110083203d
children 63a4eb8bcd23 0982ec23da03
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line diff
--- a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp	Mon Dec 09 08:20:45 2013 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp	Tue Dec 10 10:31:00 2013 +0100
@@ -1200,13 +1200,10 @@
                                                       T* p);
   template <class T> static inline void adjust_pointer(T* p);
 
-  static void follow_klass(ParCompactionManager* cm, Klass* klass);
-  static void adjust_klass(ParCompactionManager* cm, Klass* klass);
+  static inline void follow_klass(ParCompactionManager* cm, Klass* klass);
 
   static void follow_class_loader(ParCompactionManager* cm,
                                   ClassLoaderData* klass);
-  static void adjust_class_loader(ParCompactionManager* cm,
-                                  ClassLoaderData* klass);
 
   // Compaction support.
   // Return true if p is in the range [beg_addr, end_addr).
@@ -1380,6 +1377,11 @@
   }
 }
 
+inline void PSParallelCompact::follow_klass(ParCompactionManager* cm, Klass* klass) {
+  oop holder = klass->klass_holder();
+  PSParallelCompact::mark_and_push(cm, &holder);
+}
+
 template <class T>
 inline void PSParallelCompact::KeepAliveClosure::do_oop_work(T* p) {
   mark_and_push(_compaction_manager, p);