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Pull requests: pandas-dev/pandas
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WIP - Additional documentation for Performance Improvements using Pandas Docs Performance Memory or execution speed performance
#16439 by andymaheshw was closed Oct 28, 2017 Loading…
PERF: __contains__ method for Categorical Categorical Categorical Data Type Performance Memory or execution speed performance
#21022 by fjetter was closed Jun 19, 2018 Loading…
4 tasks done
index._is_multi MultiIndex Performance Memory or execution speed performance
#17147 by jbrockmendel was closed Aug 9, 2017 Loading…
4 tasks
PERF/BUG: reimplement MultiIndex.remove_unused_levels Bug MultiIndex Performance Memory or execution speed performance
PERF: indexing Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance
PERF/REGR: isin slowdown for masked type isin isin method NA - MaskedArrays Related to pd.NA and nullable extension arrays Performance Memory or execution speed performance Regression Functionality that used to work in a prior pandas version
PERF: faster unstacking Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode
ENH: Only apply first group once in fast GroupBy.apply Groupby Performance Memory or execution speed performance
PERF: perform a unique intersection with IntervalIndex if at least one side is unique Interval Interval data type Performance Memory or execution speed performance
PERF: O(n) speedup in any/all by re-enabling short-circuiting for bool case Performance Memory or execution speed performance
PERF: Add if branch for empty sep in str.cat Performance Memory or execution speed performance Strings String extension data type and string data
PERF: 5x speedup for read_json() with orient='index' by avoiding transpose IO JSON read_json, to_json, json_normalize Performance Memory or execution speed performance
CLN/PERF: remove gc.collect from the setting_with_copy checks as not needed Clean Performance Memory or execution speed performance
PERF: avoid printing object in Dtype.construct_from_string message Performance Memory or execution speed performance
PERF: custom ops for RangeIndex.[all|any|__contains__] Index Related to the Index class or subclasses Performance Memory or execution speed performance
REF: Refactor signature of RangeIndex._simple_new Index Related to the Index class or subclasses Performance Memory or execution speed performance Refactor Internal refactoring of code
PERF: changed default value of cache parameter to True in to_datetime function API Design Datetime Datetime data dtype Performance Memory or execution speed performance
PERF: restore DatetimeIndex.__iter__ performance by using non-EA implementation Datetime Datetime data dtype Performance Memory or execution speed performance
PERF: building MultiIndex with categorical levels Categorical Categorical Data Type MultiIndex Performance Memory or execution speed performance
[PERF] Get rid of MultiIndex conversion in IntervalIndex.is_unique Interval Interval data type Performance Memory or execution speed performance
PERF: DataFrame dict constructor with columns Dtype Conversions Unexpected or buggy dtype conversions Performance Memory or execution speed performance
#24387 by TomAugspurger was closed Jun 8, 2019 Loading…
PERF: regression fixup for timestamp.TimestampConstruction.time_parse_iso8601_tz benchmark Datetime Datetime data dtype Performance Memory or execution speed performance
PERF: don't call RangeIndex._data unnecessarily Index Related to the Index class or subclasses Performance Memory or execution speed performance
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