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Merged
merged 1 commit into from
Jul 4, 2021
Merged

PERF: DatetimeIndex.union #42353

merged 1 commit into from
Jul 4, 2021

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In [2]: dti = pd.date_range('2016-01-01', periods=10**5, freq="s")

In [3]: dti2 = dti.delete(50000)

In [4]: %timeit dti.union(dti2)
1.77 ms ± 7.97 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)  # <- master
1.55 ms ± 9.29 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)  # <- PR

@jreback jreback added Performance Memory or execution speed performance Index Related to the Index class or subclasses labels Jul 4, 2021
@jreback jreback added this to the 1.4 milestone Jul 4, 2021
@jreback jreback merged commit 1c7693b into pandas-dev:master Jul 4, 2021
@jbrockmendel jbrockmendel deleted the perf-dti-union-slow branch July 4, 2021 21:42
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