oxidecomputer / oxidecomputer/omicron
Consider caching packages in buildomat
Open
@jclulow is already working on this.
Since Mar 12, 2026.
development
- Dominant language
- Rust
- Stars
- 572
- Forks
- 97
- Avg merge
- 2d 12h
- Merged PRs (30d)
- 96
Description
Having the equivalent of https://github.com/oxidecomputer/omicron/pull/498 for Buildomat would significantly improve our CI times.
From a fairly recent PR:
- We spend ~2 minutes downloading crates
- We spend ~5-10 minutes compiling third-party dependencies, before we even start compiling any crates within omicron
- We continue spending time compiling third-party dependencies (I saw this running up to ~20 minutes after we started compilation)
Most PRs by developers aren't changing a significant number of these dependencies -- this seems like a solid ~15 minute chunk of time we could shave off of CI, without much risk.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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