Skip to content

PERF: add ._simple_new method to masked arrays #53013

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Merged
merged 3 commits into from
May 7, 2023
Merged

PERF: add ._simple_new method to masked arrays #53013

merged 3 commits into from
May 7, 2023

Conversation

@topper-123
Copy link
Contributor

@topper-123 topper-123 commented Apr 30, 2023

Add a ._simple_new method to BaseMaskedArray and child classes in order to allow instantiation without validation to get better performance when validation is not needed.

Example:

>>> import pandas as pd >>> arr = pd.array(np.arange(2), dtype="Int32") >>> %timeit arr.reshape(-1, 1) 1.4 µs ± 12 ns per loop # main 544 ns ± 1.87 ns per loop # this PR

Motivated by performance considerations for #52836.
@mroeschke mroeschke requested a review from jbrockmendel May 1, 2023 17:33
@mroeschke mroeschke added Performance Memory or execution speed performance NA - MaskedArrays Related to pd.NA and nullable extension arrays labels May 1, 2023
@topper-123 topper-123 mentioned this pull request May 2, 2023
Merged
1 task
@topper-123
Copy link
Contributor Author

topper-123 commented May 6, 2023 •
edited
Loading

Ping @jbrockmendel & @rhshadrach. This is currently contained in #52788 to fix a slowdown I saw when working in that PR, but can be reviewed independently.
rhshadrach
rhshadrach approved these changes May 7, 2023
View reviewed changes
Copy link
Member

@rhshadrach rhshadrach left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

lgtm
@rhshadrach
Copy link
Member

rhshadrach commented May 7, 2023

@topper-123 - just a conflict to resolve
@topper-123 topper-123 added the Reshaping Concat, Merge/Join, Stack/Unstack, Explode label May 7, 2023
@topper-123 topper-123 merged commit fa29f09 into pandas-dev:main May 7, 2023
@topper-123 topper-123 deleted the perf_masked_arrays_simple_instantiation branch May 7, 2023 15:44
@topper-123
Copy link
Contributor Author

topper-123 commented May 7, 2023

I got some social obligations, so merging this, so #52788 is rebased and ready, when I'm back...
Rylie-W pushed a commit to Rylie-W/pandas that referenced this pull request May 19, 2023
@topper-123
PERF: add ._simple_new method to masked arrays (pandas-dev#53013)
715e7dc 
* PERF: add _simple_new method to masked arrays
Daquisu pushed a commit to Daquisu/pandas that referenced this pull request Jul 8, 2023
@topper-123
PERF: add ._simple_new method to masked arrays (pandas-dev#53013)
2960dfa 
* PERF: add _simple_new method to masked arrays
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

NA - MaskedArrays Related to pd.NA and nullable extension arrays Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode

4 participants

@topper-123 @rhshadrach @jbrockmendel @mroeschke