JIT: Use pthread_jit_write_protect_np on macOS
Open
@diegorusso is already working on this.
Since Oct 30, 2024.
OS-mac
performance
topic-JIT
type-feature
- Dominant language
- Python
- Stars
- 77.2k
- Forks
- 35.9k
- PR merge metrics
- PR metrics pending
Description
Feature or enhancement
Proposal:
The proposal is an internal implementation of the JIT and it transparent to the user.
Has this already been discussed elsewhere?
I have already discussed this feature proposal on Discourse
Links to previous discussion of this feature:
Not on Discourse, I've had extensive discussion about this with @brandtbucher and created a prototype that we benchmarked using the faster-cpython infrastructure. The full results are here: https://github.com/faster-cpython/benchmarking-public/tree/main/results/bm-20241018-3.14.0a1+-f74cd79-JIT
On macOS on Apple Silicon there is an overall 1.4% speed improvement by replacing the mprotect with pthread_jit_write_protect_np.
Linked PRs
- gh-126196
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
This issue has not been assessed yet.