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PERF: Fixed perf regression in TimedeltaIndex.get_loc #34734

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Merged
merged 3 commits into from
Jun 15, 2020
Merged

PERF: Fixed perf regression in TimedeltaIndex.get_loc #34734

merged 3 commits into from
Jun 15, 2020

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TomAugspurger
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Closes #34510

1.0.3

In [10]: index = pd.timedelta_range(start="1985", periods=1000, freq="D")
    ...: timedelta = index[500]
    ...:
    ...: %timeit index.get_loc(timedelta)

3.7 µs ± 275 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

This PR

3.25 µs ± 67.7 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

@TomAugspurger TomAugspurger added Performance Memory or execution speed performance Regression Functionality that used to work in a prior pandas version labels Jun 12, 2020
@TomAugspurger TomAugspurger added this to the 1.1 milestone Jun 12, 2020
jreback
jreback approved these changes Jun 12, 2020
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lgtm. @jbrockmendel if any comments

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LGTM

jorisvandenbossche
jorisvandenbossche reviewed Jun 13, 2020
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doc/source/whatsnew/v1.1.0.rst Outdated
Performance improvements
~~~~~~~~~~~~~~~~~~~~~~~~

- Fixed performance regression in :meth:`TimedeltaIndex.get_loc` (:issue:`34510`)
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No whatsnew is needed, I think, the regression was only in master

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jreback commented Jun 15, 2020

lgtm

@jorisvandenbossche jorisvandenbossche merged commit ed1f7aa into pandas-dev:master Jun 15, 2020
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Thanks!

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@jreback jreback jreback approved these changes

@jorisvandenbossche jorisvandenbossche jorisvandenbossche approved these changes

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Performance regression in TimedeltaIndexing.time_get_loc

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@TomAugspurger @jbrockmendel @jreback @jorisvandenbossche