Add a smallrangeiterator for small ints #32315
Closed
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
c438552 to
a86594a
Compare
44ab411 to
ee83a37
Compare
ee83a37 to
4b2fa6d
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
See faster-cpython/ideas#343 . Stats suggest that small ranges are common in several benchmarks.
Microbenchmarks suggest a 10%-40% speedup for small ranges, but a 2-4% slowdown for longer ranges. Maybe PGO decided to be less aggressive about the longer case when the shorter case was added.
Pyperformace got
Geometric mean: 1.01x faster, though my machine is not super stable.