pydata/pandas — pull request #5944 by unutbu (2014-01-15 13:19:13+00:00)
Title: ENH: Improve perf of str_extract

`./test_perf.sh -b master -t str-extract -r extract`

```
Invoked with :
--ncalls: 3
--repeats: 3

-------------------------------------------------------------------------------
Test name | head[ms] | base[ms] | ratio |
-------------------------------------------------------------------------------
strings_extract | 43.7980 | 564.7360 | 0.0776 |
-------------------------------------------------------------------------------
Test name | head[ms] | base[ms] | ratio |
-------------------------------------------------------------------------------
```