src/hotspot/share/gc/g1/g1RegionToSpaceMapper.cpp

*** 43,53 ****
                                               size_t commit_factor,
                                               MemoryType type) :
    _listener(NULL),
    _storage(rs, used_size, page_size),
    _region_granularity(region_granularity),
!   _commit_map(rs.size() * commit_factor / region_granularity, mtGC) {
    guarantee(is_power_of_2(page_size), "must be");
    guarantee(is_power_of_2(region_granularity), "must be");
  
    MemTracker::record_virtual_memory_type((address)rs.base(), type);
  }
--- 43,54 ----
                                               size_t commit_factor,
                                               MemoryType type) :
    _listener(NULL),
    _storage(rs, used_size, page_size),
    _region_granularity(region_granularity),
!   _commit_map(rs.size() * commit_factor / region_granularity, mtGC),
!   _memory_type(type) {
    guarantee(is_power_of_2(page_size), "must be");
    guarantee(is_power_of_2(region_granularity), "must be");
  
    MemTracker::record_virtual_memory_type((address)rs.base(), type);
  }
*** 74,86 ****
  
    virtual void commit_regions(uint start_idx, size_t num_regions, WorkGang* pretouch_gang) {
      const size_t start_page = (size_t)start_idx * _pages_per_region;
      const size_t size_in_pages = num_regions * _pages_per_region;
      bool zero_filled = _storage.commit(start_page, size_in_pages);
      for (uint region_index = start_idx; region_index < start_idx + num_regions; region_index++ ) {
!       size_t page = region_index * _pages_per_region;
!       G1NUMA::numa()->request_memory_on_node(page, _pages_per_region, region_index);
      }
      if (AlwaysPreTouch) {
        _storage.pretouch(start_page, size_in_pages, pretouch_gang);
      }
      _commit_map.set_range(start_idx, start_idx + num_regions);
--- 75,90 ----
  
    virtual void commit_regions(uint start_idx, size_t num_regions, WorkGang* pretouch_gang) {
      const size_t start_page = (size_t)start_idx * _pages_per_region;
      const size_t size_in_pages = num_regions * _pages_per_region;
      bool zero_filled = _storage.commit(start_page, size_in_pages);
+     if (_memory_type == mtJavaHeap) {
        for (uint region_index = start_idx; region_index < start_idx + num_regions; region_index++ ) {
!         void* address = _storage.page_start(region_index * _pages_per_region);
!         size_t size_in_bytes = _storage.page_size() * _pages_per_region;
!         G1NUMA::numa()->request_memory_on_node(address, size_in_bytes, region_index);
!       }
      }
      if (AlwaysPreTouch) {
        _storage.pretouch(start_page, size_in_pages, pretouch_gang);
      }
      _commit_map.set_range(start_idx, start_idx + num_regions);
*** 132,161 ****
      size_t num_committed = 0;
  
      bool all_zero_filled = true;
      G1NUMA* numa = G1NUMA::numa();
  
!     for (uint i = start_idx; i < start_idx + num_regions; i++) {
!       assert(!_commit_map.at(i), "Trying to commit storage at region %u that is already committed", i);
!       size_t idx = region_idx_to_page_idx(i);
!       uint old_refcount = _refcounts.get_by_index(idx);
  
        bool zero_filled = false;
        if (old_refcount == 0) {
          if (first_committed == NoPage) {
!           first_committed = idx;
            num_committed = 1;
          } else {
            num_committed++;
          }
!         zero_filled = _storage.commit(idx, 1);
!         numa->request_memory_on_node(idx, 1, i);
        }
        all_zero_filled &= zero_filled;
  
!       _refcounts.set_by_index(idx, old_refcount + 1);
!       _commit_map.set_bit(i);
      }
      if (AlwaysPreTouch && num_committed > 0) {
        _storage.pretouch(first_committed, num_committed, pretouch_gang);
      }
      fire_on_commit(start_idx, num_regions, all_zero_filled);
--- 136,169 ----
      size_t num_committed = 0;
  
      bool all_zero_filled = true;
      G1NUMA* numa = G1NUMA::numa();
  
!     for (uint region_idx = start_idx; region_idx < start_idx + num_regions; region_idx++) {
!       assert(!_commit_map.at(region_idx), "Trying to commit storage at region %u that is already committed", region_idx);
!       size_t page_idx = region_idx_to_page_idx(region_idx);
!       uint old_refcount = _refcounts.get_by_index(page_idx);
  
        bool zero_filled = false;
        if (old_refcount == 0) {
          if (first_committed == NoPage) {
!           first_committed = page_idx;
            num_committed = 1;
          } else {
            num_committed++;
          }
!         zero_filled = _storage.commit(page_idx, 1);
!         if (_memory_type == mtJavaHeap) {
!           void* address = _storage.page_start(page_idx);
!           size_t size_in_bytes = _storage.page_size();
!           numa->request_memory_on_node(address, size_in_bytes, region_idx);
!         }
        }
        all_zero_filled &= zero_filled;
  
!       _refcounts.set_by_index(page_idx, old_refcount + 1);
!       _commit_map.set_bit(region_idx);
      }
      if (AlwaysPreTouch && num_committed > 0) {
        _storage.pretouch(first_committed, num_committed, pretouch_gang);
      }
      fire_on_commit(start_idx, num_regions, all_zero_filled);