10000 PERF: regression in DataFrame.shift method performance · Issue #42246 · pandas-dev/pandas · GitHub
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PERF: regression in DataFrame.shift method performance #42246
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PERF: regression in DataFrame.shift method performance#42246
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PerformanceMemory or execution speed performanceRegressionFunctionality that used to work in a prior pandas version
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@jorisvandenbossche

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@jorisvandenbossche
jorisvandenbossche
opened on Jun 26, 2021

Performance regression in shift caused by #40536

I don't know if it's a particularly useful benchmark, but there is a big slowdown potentially related to this PR: https://pandas.pydata.org/speed/pandas/#frame_methods.Shift.time_shift?python=3.8&Cython=0.29.21&p-axis=1&commits=05a0e98a-bc62e768

Originally posted by @jorisvandenbossche in #40536 (comment)

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