rust-lang / rust-lang/rust-analyzer

Idea: run `cargo metadata` in parallel on multi-root workspaces

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#13,136 0 comments 0 reactions 0 assignees View on GitHub

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A-cargo A-perf C-feature
Dominant language
Rust
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Description

I'm not sure if this is possible, but it might help with project loading performance. See the video in https://github.com/rust-lang/rust-analyzer/issues/13135.

To save anyone reading this from the work, there are no external dependencies in any of the projects, but this step takes quite a bit of time even on subsequent loads.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source files or tests are identified. Start by reviewing the loading-performance video and issue #13135, then reproduce the reported cargo metadata delay for a multi-root workspace without external dependencies. Done would require a defined, validated approach that improves project loading time.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
performance
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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