PERF: don't sort data twice in groupby apply when not using libreduction fast_apply#40176

Merged

jreback merged 3 commits intopandas-dev:masterfrom

jorisvandenbossche:perf-groupby-apply-pyfallback

Mar 2, 2021

Commits on Mar 2, 2021

PERF: don't sort data twice in groupby apply when not using libreduction fast_apply
jorisvandenbossche
committed
expand existing benchmark to cover case with larger groups
jorisvandenbossche
committed
add whatsnew
jorisvandenbossche
committed