Rate    u1    u2    u5    u3    u4
u1  10555/s    --  -71%  -90%  -93%  -93%
u2  35955/s  241%    --  -65%  -76%  -76%
u5 102215/s  868%  184%    --  -32%  -32%
u3 149240/s 1314%  315%   46%    --   -1%
u4 150091/s 1322%  317%   47%    1%    --