src/share/vm/runtime/virtualspace.cpp

rev 7656 : 8066875: VirtualSpace does not use large pages (02)

@@ -36,11 +36,12 @@
 ReservedSpace::ReservedSpace() : _base(NULL), _size(0), _noaccess_prefix(0),
     _alignment(0), _special(false), _executable(false) {
 }
 
 ReservedSpace::ReservedSpace(size_t size) {
-  size_t page_size = os::page_size_for_region_aligned(size, 1);
+  // Want to use large pages where possible and pad with small pages.
+  size_t page_size = os::page_size_for_region_unaligned(size, 1);
   bool large_pages = page_size != (size_t)os::vm_page_size();
   // Don't force the alignment to be large page aligned,
   // since that will waste memory.
   size_t alignment = os::vm_allocation_granularity();
   initialize(size, alignment, large_pages, NULL, false);