• Mel Gorman's avatar
    mm, page_alloc: inline zone_statistics · 060e7417
    Mel Gorman authored
    zone_statistics has one call-site but it's a public function.  Make it
    static and inline.
    
    The performance difference on a page allocator microbenchmark is;
    
                                                 4.6.0-rc2                  4.6.0-rc2
                                          statbranch-v1r20           statinline-v1r20
      Min      alloc-odr0-1               419.00 (  0.00%)           412.00 (  1.67%)
      Min      alloc-odr0-2               305.00 (  0.00%)           301.00 (  1.31%)
      Min      alloc-odr0-4               250.00 (  0.00%)           247.00 (  1.20%)
      Min      alloc-odr0-8               219.00 (  0.00%)           215.00 (  1.83%)
      Min      alloc-odr0-16              203.00 (  0.00%)           199.00 (  1.97%)
      Min      alloc-odr0-32              195.00 (  0.00%)           191.00 (  2.05%)
      Min      alloc-odr0-64              191.00 (  0.00%)           187.00 (  2.09%)
      Min      alloc-odr0-128             189.00 (  0.00%)           185.00 (  2.12%)
      Min      alloc-odr0-256             198.00 (  0.00%)           193.00 (  2.53%)
      Min      alloc-odr0-512             210.00 (  0.00%)           207.00 (  1.43%)
      Min      alloc-odr0-1024            216.00 (  0.00%)           213.00 (  1.39%)
      Min      alloc-odr0-2048            221.00 (  0.00%)           220.00 (  0.45%)
      Min      alloc-odr0-4096            227.00 (  0.00%)           226.00 (  0.44%)
      Min      alloc-odr0-8192            232.00 (  0.00%)           229.00 (  1.29%)
      Min      alloc-odr0-16384           232.00 (  0.00%)           229.00 (  1.29%)
    Signed-off-by: default avatarMel Gorman <mgorman@techsingularity.net>
    Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
    Cc: Jesper Dangaard Brouer <brouer@redhat.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    060e7417
page_alloc.c 199 KB