src/share/vm/gc_implementation/g1/g1PageBasedVirtualSpace.cpp

rev 7555 : imported patch 8067469-g1-ignores-alwayspretouch

*** 129,138 ****
--- 129,141 ----
                                err_msg("Failed to commit pages from "SIZE_FORMAT" of length "SIZE_FORMAT, start, size_in_pages));
    }
    _committed.set_range(start, start + size_in_pages);
  
    MemRegion result((HeapWord*)page_start(start), byte_size_for_pages(size_in_pages) / HeapWordSize);
+   if (AlwaysPreTouch) {
+     os::pretouch_memory((char*)result.start(), (char*)result.end());
+   }
    return result;
  }
  
  MemRegion G1PageBasedVirtualSpace::uncommit(uintptr_t start, size_t size_in_pages) {
    guarantee(is_area_committed(start, size_in_pages), "checking");