[Speed] Performance comparison of regular expression engines

[Serhiy Storchaka]

On 06.03.16 11:30, Maciej Fijalkowski wrote:
> this is really difficult to read, can you tell me which column am I looking at?

The first column is the searched pattern. The second column is the 
number of found matches (for control, it should be the same with all 
engines and versions). The third column, under the "re" header is the 
time in milliseconds. The column under the "str.find" header is the time 
of searching without using regular expressions.

PyPy 2.2 usually is significantly faster than CPython 2.7, except 
searching plain string with regular expression. But thanks to Flexible 
String Representation searching plain string with and without regular 
expression is faster on CPython 3.6.