x => efe0945164a7e582241f37ae8983c075f8f2e870-select-zipfian-latency.log 
y => timeout-select-zipfian-latency.log 

         n min   max median  average   stddev  p99
x 50293081 0.5 468.1   4.85 4.894943 3.630464 12.5
y 50293081 0.5  10.3   4.00 4.494968 2.753148 10.3

   0          2          4          6           8         10         12         
 |-+----------+----------+----------+-----------+----------+----------+--------|
                    +---------+-----------+                                     
1    ---------------|         |           |-------------------------------      
                    +---------+-----------+                                     
              +----------+----------------+                                     
2    ---------|          |                |-------------------                  
              +----------+----------------+                                     
Legend: 1=data$x, 2=data$y

At 95% probablitiy:
===> average is statistically significant     (p=0.000000, diff ~0.399975)
===> variance is statistically significant    (p=0.000000)