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ASV: DataFrame.__setitem__ performance with object dtype #55938

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Merged
merged 3 commits into from
Nov 14, 2023
Merged

ASV: DataFrame.__setitem__ performance with object dtype #55938

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eee5a05
add asv
quangngd Nov 13, 2023
b36d8d1
add github issue context
quangngd Nov 13, 2023
49ef712
fix minor
quangngd Nov 14, 2023
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12 changes: 12 additions & 0 deletions asv_bench/benchmarks/indexing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -515,6 +515,18 @@ def time_setitem_list(self):
self.df[[100, 200, 300]] = 100


class SetitemObjectDtype:
# GH#19299

def setup(self):
N = 1000
cols = 500
self.df = DataFrame(index=range(N), columns=range(cols), dtype=object)

def time_setitem_object_dtype(self):
self.df.loc[0, 1] = 1.0


class ChainIndexing:
params = [None, "warn"]
param_names = ["mode"]
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