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0.25.0
420 ms ± 6.46 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
390 ms ± 4.96 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
401 ms ± 2.82 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
1.48 ms ± 5.71 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
0.22.0
1.07 ms ± 40.8 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
11.4 ms ± 376 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
11.5 ms ± 291 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
1.64 ms ± 52.7 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
Problem description
DataFrame.add/sub is a lot slower after pandas upgrade.
I also tested other versions, 0.23.4 is the last version that works normally.
Output of pd.show_versions()
INSTALLED VERSIONS
commit : None
python : 3.6.9.final.0
python-bits : 64
OS : Linux
OS-release : 3.16.35-031635-generic
machine : x86_64
processor : x86_64
byteorder : little
LC_ALL :
LANG : en_US.UTF-8
LOCALE : en_US.UTF-8
Code Sample, a copy-pastable example if possible
Problem description
DataFrame.add/sub is a lot slower after pandas upgrade.
I also tested other versions, 0.23.4 is the last version that works normally.
Output of
pd.show_versions()
INSTALLED VERSIONS
commit : None
python : 3.6.9.final.0
python-bits : 64
OS : Linux
OS-release : 3.16.35-031635-generic
machine : x86_64
processor : x86_64
byteorder : little
LC_ALL :
LANG : en_US.UTF-8
LOCALE : en_US.UTF-8
pandas : 0.25.0
numpy : 1.16.4
pytz : 2019.1
dateutil : 2.8.0
pip : 19.1.1
setuptools : 41.0.1
Cython : 0.29.12
pytest : None
hypothesis : None
sphinx : None
blosc : None
feather : None
xlsxwriter : 1.1.8
lxml.etree : 4.3.4
html5lib : None
pymysql : 0.9.3
psycopg2 : None
jinja2 : 2.10.1
IPython : 7.1.1
pandas_datareader: None
bs4 : 4.7.1
bottleneck : None
fastparquet : None
gcsfs : None
lxml.etree : 4.3.4
matplotlib : 3.1.0
numexpr : 2.6.9
odfpy : None
openpyxl : 2.6.2
pandas_gbq : None
pyarrow : 0.11.1
pytables : None
s3fs : None
scipy : 1.3.0
sqlalchemy : 1.3.5
tables : 3.5.2
xarray : None
xlrd : 1.2.0
xlwt : 1.3.0
xlsxwriter : 1.1.8
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