rayon-rs/rayon

Updating sort algorithms

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#1233 opened on Feb 16, 2025

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help wanted

Description

Rust library today uses ipnsort and driftsort for unstable and stable sort respectively.

I'm wondering if it would make sense to switch to them in parallel implementations here too instead of pdqsort and timsort respectively.

Contributor guide

Tech stack
rust
Domain
performancebackend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
Rust programmingsorting algorithm knowledgerayon library basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25
Research direction
Review the current sort implementations (pdqsort and timsort) in the rayon source code, likely in src/sort/ directory. Examine the linked research on ipnsort and driftsort by Voultapher. Consider benchmarks and trade offs. Discuss on the issue if maintainers desire this change.