GH-87849: Simplify stack effect of SEND and specialize it for generators. #101788
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Outdated suggestions cannot be applied.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.
This avoids most the overhead when transferring control from caller to the generator or coroutine in a
yield from
orawait
.The benchmarks results are in the noise, except for the "generators" benchmark which is 2.5x faster.
Mean speedup is about 1%, although that might not be meaningful if one benchmark is 150% faster.
https://github.com/faster-cpython/benchmarking-public/blob/main/results/bm-20230210-3.12.0a5%2B-685d559/bm-20230210-linux-x86_64-faster%252dcpython-specialized_send-3.12.0a5%2B-685d559-vs-base.md