1. 14 Apr, 2006 39 commits
  2. 13 Apr, 2006 1 commit
    • Robin Holt's avatar
      [IA64] Make show_mem() skip holes in a pgdat · ace1d816
      Robin Holt authored
      This patch modifies ia64's show_mem() to walk the vmem_map page tables and
      rapidly skip forward across regions where the page tables are missing.
      This prevents the pfn_valid() check from causing numerous unnecessary
      page faults.
      
      Without this patch on a 512 node 512 cpu system where every node has four
      memory holes, the show_mem() call takes 1 hour 18 minutes.  With this
      patch, it takes less than 3 seconds.
      Signed-off-by: default avatarRobin Holt <holt@sgi.com>
      Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      ace1d816