src/hotspot/share/gc/parallel/psYoungGen.cpp

rev 60637 : 8252221: Use multiple workers for Parallel GC pre-touching
Reviewed-by:
Contributed-by: amith.pawar@gmail.com

*** 187,199 ****
  
    MemRegion eden_mr((HeapWord*)eden_start, (HeapWord*)to_start);
    MemRegion to_mr  ((HeapWord*)to_start, (HeapWord*)from_start);
    MemRegion from_mr((HeapWord*)from_start, (HeapWord*)from_end);
  
!   eden_space()->initialize(eden_mr, true, ZapUnusedHeapArea);
!     to_space()->initialize(to_mr  , true, ZapUnusedHeapArea);
!   from_space()->initialize(from_mr, true, ZapUnusedHeapArea);
  }
  
  #ifndef PRODUCT
  void PSYoungGen::space_invariants() {
    // Currently, our eden size cannot shrink to zero
--- 187,200 ----
  
    MemRegion eden_mr((HeapWord*)eden_start, (HeapWord*)to_start);
    MemRegion to_mr  ((HeapWord*)to_start, (HeapWord*)from_start);
    MemRegion from_mr((HeapWord*)from_start, (HeapWord*)from_end);
  
!   WorkGang& pretouch_workers = ParallelScavengeHeap::heap()->workers();
!   eden_space()->initialize(eden_mr, true, ZapUnusedHeapArea, MutableSpace::SetupPages, &pretouch_workers);
!     to_space()->initialize(to_mr  , true, ZapUnusedHeapArea, MutableSpace::SetupPages, &pretouch_workers);
!   from_space()->initialize(from_mr, true, ZapUnusedHeapArea, MutableSpace::SetupPages, &pretouch_workers);
  }
  
  #ifndef PRODUCT
  void PSYoungGen::space_invariants() {
    // Currently, our eden size cannot shrink to zero