astral-sh/uv

Reduce build and check times

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#5,711 opened on Aug 1, 2024

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Description

I can update this with some concrete timing information, but cargo build and cargo clippy times are on the rise as the project grows. This is a tracking issue to improve the situation and discuss sources of slowness.

Contributor guide

Research direction
Start by running `cargo build timings` to generate a build timing report. Analyze the report to find the slowest crates and check if any are compiled with excessive features. Look into using the `mold` linker or setting `RUSTFLAGS` to enable LTO and codegen units optimizations. Consider splitting large crates or caching more aggressively. For Clippy, profile with `cargo clippy timings` and see if any lints are particularly expensive. Document your findings in the issue.
Tech stack
rust
Domain
build systemdeveloper experience
Issue type
Performance
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
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.
Unclear
Prerequisites
RustCargo
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
15