Rate ikegami_sort   ikegami         op op_nosort
ikegami_sort   4.68/s           --       -1%       -75%%      -91%
ikegami        4.72/s           1%        --       -75%%      -91%
op             19.1/s         308%      304%         --%      -62%
op_nosort      50.6/s         981%      970%       165%        --