http://blog.honeybadger.io/how-openstruct-and-hashes-can-kill-performance/

results.txt

INITIALIZATION ==========
Warming up --------------------------------------
         PointStruct   224.769k i/100ms
          PointClass   168.605k i/100ms
                Hash    63.197k i/100ms
          OpenStruct    81.934k i/100ms
Calculating -------------------------------------
         PointStruct      4.279M (±12.8%) i/s -     20.679M in   5.016227s
          PointClass      3.143M (± 5.0%) i/s -     15.680M in   5.003189s
                Hash    840.233k (± 5.6%) i/s -      4.234M in   5.055979s
          OpenStruct    861.721k (±15.8%) i/s -      4.179M in   5.004733s


READ ==========
Warming up --------------------------------------
         PointStruct   232.386k i/100ms
          PointClass   218.295k i/100ms
                Hash   171.068k i/100ms
          OpenStruct   157.127k i/100ms
Calculating -------------------------------------
         PointStruct      5.837M (±20.0%) i/s -     26.492M in   5.015568s
          PointClass      7.263M (±25.1%) i/s -     33.399M in   5.016318s
                Hash      6.148M (±18.0%) i/s -     29.424M in   5.029195s
          OpenStruct      4.199M (±15.5%) i/s -     20.427M in   5.008816s


WRITE ==========
Warming up --------------------------------------
         PointStruct   169.963k i/100ms
          PointClass   166.700k i/100ms
                Hash   145.621k i/100ms
          OpenStruct   163.663k i/100ms
Calculating -------------------------------------
         PointStruct      6.896M (± 9.8%) i/s -     34.163M in   5.005230s
          PointClass      8.317M (±11.2%) i/s -     41.008M in   5.000077s
                Hash      7.697M (±13.6%) i/s -     37.425M in   5.002711s
          OpenStruct      4.155M (±13.1%) i/s -     18.985M in   5.021359s