gh-142048: Fix quadratically increasing GC delays#142051
Merged
colesbury merged 8 commits intopython:mainfrom Dec 2, 2025
Merged
gh-142048: Fix quadratically increasing GC delays#142051colesbury merged 8 commits intopython:mainfrom
colesbury merged 8 commits intopython:mainfrom
Conversation
Loading
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Fixes quadratically increasing GC delays in the free-threaded build. This is done by updating the local to global allocation count propagation to require the global count to be non-negative. This matches the existing behavior in non-free-threaded
gc.c. Additionally, adds a flush that I found was causing allocations to be lost.