src/hotspot/share/gc/z/zHeap.cpp

*** 23,32 ****
--- 23,33 ----
  
  #include "precompiled.hpp"
  #include "gc/shared/gcArguments.hpp"
  #include "gc/shared/oopStorage.hpp"
  #include "gc/z/zAddress.hpp"
+ #include "gc/z/zArray.inline.hpp"
  #include "gc/z/zGlobals.hpp"
  #include "gc/z/zHeap.inline.hpp"
  #include "gc/z/zHeapIterator.hpp"
  #include "gc/z/zList.inline.hpp"
  #include "gc/z/zLock.inline.hpp"
*** 384,393 ****
--- 385,410 ----
    // during the resurrection block window, since such referents
    // are only Finalizable marked.
    _reference_processor.enqueue_references();
  }
  
+ class ZHeapReclaimPagesTask : public ZTask {
+ private:
+   ZArrayParallelIterator<ZPage*> _iter;
+ 
+ public:
+   ZHeapReclaimPagesTask(ZArray<ZPage*>* pages) :
+       ZTask("ZHeapReclaimPagesTask"),
+       _iter(pages) {}
+ 
+   virtual void work() {
+     for (ZPage* page; _iter.next(&page);) {
+       ZHeap::heap()->free_page(page, true /* reclaimed */);
+     }
+   }
+ };
+ 
  void ZHeap::select_relocation_set() {
    // Do not allow pages to be deleted
    _page_allocator.enable_deferred_delete();
  
    // Register relocatable pages with selector
*** 401,421 ****
  
      if (page->is_marked()) {
        // Register live page
        selector.register_live_page(page);
      } else {
!       // Register garbage page
!       selector.register_garbage_page(page);
! 
!       // Reclaim page immediately
!       free_page(page, true /* reclaimed */);
      }
    }
  
    // Allow pages to be deleted
    _page_allocator.disable_deferred_delete();
  
    // Select pages to relocate
    selector.select(&_relocation_set);
  
    // Setup forwarding table
    ZRelocationSetIterator rs_iter(&_relocation_set);
--- 418,439 ----
  
      if (page->is_marked()) {
        // Register live page
        selector.register_live_page(page);
      } else {
!       // Register reclaimable page
!       selector.register_reclaimable_page(page);
      }
    }
  
    // Allow pages to be deleted
    _page_allocator.disable_deferred_delete();
  
+   // Free reclaimable page
+   ZHeapReclaimPagesTask task(selector.reclaimable());
+   _workers.run_concurrent(&task);
+ 
    // Select pages to relocate
    selector.select(&_relocation_set);
  
    // Setup forwarding table
    ZRelocationSetIterator rs_iter(&_relocation_set);