Values are in millions of operations per second, so larger values are better.

    localAccesses

      Io 26.7  
      Python 23.2  
      Ruby 8.1  

    localSets

      Io 10.3  
      Python 23.2  
      Ruby 5.8  

    slotAccesses

      Io 11.2  
      Python 6.1  
      Ruby 3.4  

    slotSets

      Io 4.9  
      Python 5.9  
      Ruby 4.4  

    blockActivations

      Io 3.7  
      Python 1.6  
      Ruby 2.3  

    instantiations

      Io 2.1  
      Python 1.4  
      Ruby 1.4  

    versions

      Io 20050615
      Python 2.3.0 final 0
      Ruby 1.6.8