JuliaCon 2023

Julia's Extensible High Performance Sorting Pipeline
07-26, 14:30–15:00 (US/Eastern), 32-141

Julia 1.9 provides remarkable facilities for sorting including lightning fast default algorithms and an extensible system that supports both package authors who provide additional sorting options and users with domain-specific knowledge about their input distributions. This talk explains the Julia sorting pipeline: how these features are made possible and how you can benefit from using them.


Julia's new sorting pipeline uses nested algorithm types that allow a user to precisely specify a custom pipeline or modify existing pipelines by adding preprocessing or post-processing steps using either dispatch on custom types or explicit algorithm specification.

In sum, these improvements make Julia the programming language that provides the highest performance sorting in many common cases as well as the most power and flexibility in defining specialized systems for niche use cases.

Finally, this talk will touch on some of the directions for future work within the Julia sorting ecosystem, both in the core language and in SortingAlgorithms.jl.

I'm Lilith, a person, an artist, and a scientist.

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