On Sun, Dec 27, 2015 at 12:33 AM, Bob Liu <lliubbo@xxxxxxxxx> wrote: > Hey Dan, > [..] > What about space for page tables? > Page tables(mapping all memory in PMEM to virtual address space) may > also consume significantly DRAM space if huge page is not enabled or > split. > Should we also consider to allocate pte page tables from PMEM in future? On x86_64 these ranges are covered by gigabyte pages by default (see init_memory_mapping()). I don't see much incremental benefit from allocating pte's from pmem. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>