Extremely slow toolchain download
Open
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not-rustup
- Dominant language
- Rust
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Description
Verification
- I searched for recent similar issues at https://github.com/rust-lang/rustup/issues?q=is%3Aissue+is%3Aopen%2Cclosed and found no duplicates.
- I am on the latest version of Rustup according to https://github.com/rust-lang/rustup/tags and am still able to reproduce my issue.
Problem
rustup toolchain install nightly-2024-10-19-aarch64-apple-darwin
.. no firewall or vpn ..
starts 4mib/s then immediately drops to 17kib/s
Steps
rustup toolchain install nightly-2024-10-19-aarch64-apple-darwin
Possible Solution(s)
wait 🤷
Notes
it's not the first time this happens
Rustup version
$ rustup --version
rustup 1.27.1 (54dd3d00f 2024-04-24)
Installed toolchains
$ rustup toolchain list
stable-aarch64-apple-darwin (default)
OS version
macOS Sequoia 15.1 (24B82)
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.
Research direction
The issue names the rustup toolchain install nightly-2024-10-19-aarch64-apple-darwin command as its entry point; start by reproducing the download-speed drop on macOS Sequoia with rustup 1.27.1. Done means the cause of the recurring slowdown is identified and the toolchain download no longer immediately falls from roughly 4 MiB/s to 17 KiB/s.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- cli, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100