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PERF: improve perf of writing csv's with datetimes #9940

Merged
merged 2 commits into from
Apr 20, 2015
Merged

PERF: improve perf of writing csv's with datetimes #9940

merged 2 commits into from
Apr 20, 2015

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@jreback jreback commented Apr 19, 2015 


-------------------------------------------------------------------------------
Test name                                    | head[ms] | base[ms] |  ratio   |
-------------------------------------------------------------------------------
frame_to_csv_mixed                           | 107.7774 | 668.5090 |   0.1612 |
frame_to_csv                                 |  55.9403 | 140.1517 |   0.3991 |
write_csv_standard                           |  25.6400 |  49.6367 |   0.5166 |
packers_write_csv                            | 663.6736 | 1228.0974 |   0.5404 |
read_csv_standard                            |  10.2447 |  15.0284 |   0.6817 |
read_csv_skiprows                            |  12.1686 |  16.3487 |   0.7443 |
frame_to_csv_date_formatting                 |  10.2980 |  13.3820 |   0.7695 |

@jreback jreback added Performance Memory or execution speed performance IO CSV read_csv, to_csv labels Apr 19, 2015
@jreback jreback added this to the 0.16.1 milestone Apr 19, 2015
@jreback jreback force-pushed the csv_dt branch 2 times, most recently from 16407e5 to 7373538 Compare April 19, 2015 22:33
jreback added a commit that referenced this pull request Apr 20, 2015
@jreback
Merge pull request #9940 from jreback/csv_dt
85059a4 
PERF: improve perf of writing csv's with datetimes
@jreback jreback merged commit 85059a4 into pandas-dev:master Apr 20, 2015
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