1. 13 Nov, 2006 2 commits
  2. 10 Nov, 2006 6 commits
  3. 09 Nov, 2006 1 commit
    • stewart@willster.(none)'s avatar
      BUG#24143 Heavy file fragmentation with multiple ndbd on single fs · 2f20405e
      stewart@willster.(none) authored
      If we have the XFS headers (at build time) we can use XFS specific ioctls
      (once testing the file is on XFS) to better allocate space.
      
      This dramatically improves performance of mysql-test-run cases as well:
      
      e.g.
      number of extents for ndb_dd_basic tablespaces and log files
      BEFORE this patch: 57, 13, 212, 95, 17, 113 
      WITH this patch  :  ALL 1 or 2 extents
      
      (results are consistent over multiple runs. BEFORE always has several files
      with lots of extents).
      
      As for timing of test run:
      BEFORE
      ndb_dd_basic                   [ pass ]         107727
      real    3m2.683s
      user    0m1.360s
      sys     0m1.192s
      
      AFTER
      ndb_dd_basic                   [ pass ]          70060
      real    2m30.822s
      user    0m1.220s
      sys     0m1.404s
      
      (results are again consistent over various runs)
      
      similar for other tests (BEFORE and AFTER):
      ndb_dd_alter                   [ pass ]         245360
      ndb_dd_alter                   [ pass ]         211632
      2f20405e
  4. 08 Nov, 2006 10 commits
  5. 07 Nov, 2006 21 commits