x => efe0945164a7e582241f37ae8983c075f8f2e870-update-zipfian-throughput.log 
y => timeout-update-zipfian-throughput.log 

    n min   max  median  average   stddev      p99
x 900   0 32652 29292.5 27453.95 6905.252 32004.88
y 900   0 30921 29550.0 27673.31 6421.476 30594.01

       26000              28000               30000              32000          
 |-------+------------------+-------------------+------------------+-----------|
                               +---------+-------+                              
1    --------------------------|         |       |------------------------      
                               +---------+-------+                              
                                       +---+--+                                 
2                           -----------|   |  |---------                        
                                       +---+--+                                 
Legend: 1=data$x, 2=data$y

At 95% probablitiy:
===> average not statistically significant    (p=0.485348, diff ~219.355556)
===> variance is statistically significant    (p=0.029536)