benchmark performance

[evelynmitchell]

`$ python3 benchrunner
Downloading test corpus...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
100 124M 100 124M 0 0 3425k 0 0:00:37 0:00:37 --:--:-- 4143k
Unpacking test corpus...
Concatenating files in to single blob...
Building dedup...
Finished release [optimized] target(s) in 0.0 secs

awk : mean: 4.988 median: 4.803

dedup : mean: 2.337 median: 2.284

sort : mean: 17.03 median: 17.32
`

[evelynmitchell]

awk : mean: 4.853 median: 4.843

dedup : mean: 2.296 median: 2.291

sort : mean: 15.49 median: 15.64