    # File lib/fog/rackspace/models/compute/flavor.rb, line 19
            def cores
              # Each server is assigned 4 virtual cores and
              # given a percentage of CPU cycles based on size
              4 * case ram
              when 256
                1/64.0
              when 512
                1/32.0
              when 1024
                1/16.0
              when 2048
                1/8.0
              when 4096
                1/4.0
              when 8192
                1/2.0
              when 15872
                1
              when 30720
                2
              end
            end