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

         n min     max median  average    stddev   p99
x 24708797 0.5 4191.35   10.3 10.60437 38.910479 26.80
y 24708797 0.5   29.50   10.3  9.67994  4.819099 22.15

               5                       10                       15              
 |-------------+------------------------+------------------------+-------------|
                             +------------+----+                                
1    ------------------------|            |    |--------------------------      
                             +------------+----+                                
                             +------------+----+                                
2    ------------------------|            |    |--------------------------      
                             +------------+----+                                
Legend: 1=data$x, 2=data$y

At 95% probablitiy:
===> average is statistically significant     (p=0.000000, diff ~0.924431)
===> variance is statistically significant    (p=0.000000)