pydata/pandas — pull request #7720 by jreback (2014-07-10 14:50:32+00:00)
Title: PERF: improve perf of index iteration (GH7683)

closes #7683

``PeriodIndex`` creation is still in python space, not much help

```
-------------------------------------------------------------------------------
Test name | head[ms] | base[ms] | ratio |
-------------------------------------------------------------------------------
timeseries_iter_datetimeindex_preexit | 546.1044 | 3686.5337 | 0.1481 |
timeseries_iter_datetimeindex | 607.6663 | 3883.4966 | 0.1565 |
timeseries_iter_periodindex_preexit | 71.6507 | 61.9530 | 1.1565 |
timeseries_iter_periodindex | 7346.7317 | 6086.1207 | 1.2071 |
-------------------------------------------------------------------------------
Test name | head[ms] | base[ms] | ratio |
-------------------------------------------------------------------------------

Ratio < 1.0 means the target commit is faster then the baseline.
Seed used: 1234

Target [fcc05d0] : PERF: DatetimeIndex.__iter__ now uses ints_to_pydatetime with boxing
Base [f9493ea] : Merge pull request #7713 from jorisvandenbossche/doc-fixes3

DOC: fix doc build warnings
```