How to speed up the Rust compiler in July 2022

• rust

  2,682 92,831 10.0 Rust

  Empowering everyone to build reliable and efficient software.

  

There are efforts to switch to LLD by default on Linux (tracking issue) and Windows (tracking issue). For recent developments, there is an open PR for adding a few flags to simplify this.

• rules_apple_linker

  1 60 5.6 Starlark

  Bazel rules for overriding ld64 with lld or zld

For folks using macOS looking for other potential linker improvements, it's worth trying out ld64.lld. Facebook and google have been heavily investing in it and it's quite a bit faster than ld64. I have a small rust benchmark linking alacritty here but if there are significantly larger open source rust projects I could test with I would love to hear about them.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• cargo-chef

  18 1,519 7.2 Rust

  A cargo-subcommand to speed up Rust Docker builds using Docker layer caching.

If you're deploying Rust with Docker I can tell you that cargo-chef is invaluable. With zero work it caches the dependency fetch and compilation steps. Most of the time the ens Docker deploy is closer to an incremental compile than full.

• rust-analyzer

  132 13,551 10.0 Rust

  A Rust compiler front-end for IDEs

  

• rustc_codegen_cranelift

  44 1,438 9.7 Rust

  Cranelift based backend for rustc

  

• compiler-team

  46 380 6.8 HTML

  A home for compiler team planning documents, meeting minutes, and other such things.

  

Something I saw mention it recently was an accepted proposal for build-time execution sandboxing, where the intended implementation is a WebAssembly-based runtime. It mentions that it hopes it could also set the foundations in the compiler for optimizations like watt with reusable build artifacts.

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