src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp

rev 5732 : [mq]: comments2

*** 1371,1381 ****
    HeapRegion* region_at(uint index) const { return _hrs.at(index); }
  
    // Divide the heap region sequence into "chunks" of some size (the number
    // of regions divided by the number of parallel threads times some
    // overpartition factor, currently 4).  Assumes that this will be called
!   // in parallel by ParallelGCThreads worker threads with discinct worker
    // ids in the range [0..max(ParallelGCThreads-1, 1)], that all parallel
    // calls will use the same "claim_value", and that that claim value is
    // different from the claim_value of any heap region before the start of
    // the iteration.  Applies "blk->doHeapRegion" to each of the regions, by
    // attempting to claim the first region in each chunk, and, if
--- 1371,1381 ----
    HeapRegion* region_at(uint index) const { return _hrs.at(index); }
  
    // Divide the heap region sequence into "chunks" of some size (the number
    // of regions divided by the number of parallel threads times some
    // overpartition factor, currently 4).  Assumes that this will be called
!   // in parallel by ParallelGCThreads worker threads with distinct worker
    // ids in the range [0..max(ParallelGCThreads-1, 1)], that all parallel
    // calls will use the same "claim_value", and that that claim value is
    // different from the claim_value of any heap region before the start of
    // the iteration.  Applies "blk->doHeapRegion" to each of the regions, by
    // attempting to claim the first region in each chunk, and, if
*** 1516,1526 ****
    }
  
    // Returns "true" iff the given word_size is "very large".
    static bool isHumongous(size_t word_size) {
      // Note this has to be strictly greater-than as the TLABs
!     // are capped at the humongous thresold and we want to
      // ensure that we don't try to allocate a TLAB as
      // humongous and that we don't allocate a humongous
      // object in a TLAB.
      return word_size > _humongous_object_threshold_in_words;
    }
--- 1516,1526 ----
    }
  
    // Returns "true" iff the given word_size is "very large".
    static bool isHumongous(size_t word_size) {
      // Note this has to be strictly greater-than as the TLABs
!     // are capped at the humongous threshold and we want to
      // ensure that we don't try to allocate a TLAB as
      // humongous and that we don't allocate a humongous
      // object in a TLAB.
      return word_size > _humongous_object_threshold_in_words;
    }
*** 1646,1673 ****
    void push_dirty_cards_region(HeapRegion* hr);
    HeapRegion* pop_dirty_cards_region();
  
    // Optimized nmethod scanning support routines
  
!   // Register the given nmethod with the G1 heap
    virtual void register_nmethod(nmethod* nm);
  
!   // Unregister the given nmethod from the G1 heap
    virtual void unregister_nmethod(nmethod* nm);
  
    // Migrate the nmethods in the code root lists of the regions
    // in the collection set to regions in to-space. In the event
    // of an evacuation failure, nmethods that reference objects
!   // that were not successfullly evacuated are not migrated.
    void migrate_strong_code_roots();
  
    // During an initial mark pause, mark all the code roots that
    // point into regions *not* in the collection set.
    void mark_strong_code_roots(uint worker_id);
  
!   // Rebuild the stong code root lists for each region
!   // after a full GC
    void rebuild_strong_code_roots();
  
    // Verification
  
    // The following is just to alert the verification code
--- 1646,1673 ----
    void push_dirty_cards_region(HeapRegion* hr);
    HeapRegion* pop_dirty_cards_region();
  
    // Optimized nmethod scanning support routines
  
!   // Register the given nmethod with the G1 heap.
    virtual void register_nmethod(nmethod* nm);
  
!   // Unregister the given nmethod from the G1 heap.
    virtual void unregister_nmethod(nmethod* nm);
  
    // Migrate the nmethods in the code root lists of the regions
    // in the collection set to regions in to-space. In the event
    // of an evacuation failure, nmethods that reference objects
!   // that were not successfully evacuated are not migrated.
    void migrate_strong_code_roots();
  
    // During an initial mark pause, mark all the code roots that
    // point into regions *not* in the collection set.
    void mark_strong_code_roots(uint worker_id);
  
!   // Rebuild the strong code root lists for each region
!   // after a full GC.
    void rebuild_strong_code_roots();
  
    // Verification
  
    // The following is just to alert the verification code