How to speed up the Rust compiler in September 2026
How to speed up the Rust compiler in September 2026 Sep 30, 2026 My last post on the Rust compiler’s performance was two months ago and a lot has happened since then. Overall progress The measurements for the period 2026-07-29 to 2026-09-28 can be seen here. The mean wall-time reduction was 4.57%, which is a remarkable improvement in just two months.
- ▪How to speed up the Rust compiler in September 2026 Sep 30, 2026 My last post on the Rust compiler’s performance was two months ago and a lot has happened since then.
- ▪Overall progress The measurements for the period 2026-07-29 to 2026-09-28 can be seen here.
- ▪The mean wall-time reduction was 4.57%, which is a remarkable improvement in just two months.
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| Original publisher | Nicholas Nethercote |
| Canonical URL | https://nnethercote.github.io/2026/09/30/how-to-speed-up-the-rust-compiler-in-september-2026.html |
| Publication time | Thu, 01 Oct 2026 12:44:38 +0000 |
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How to speed up the Rust compiler in September 2026 Sep 30, 2026 My last post on the Rust compiler’s performance was two months ago and a lot has happened since then. Overall progress The measurements for the period 2026-07-29 to 2026-09-28 can be seen here. The mean wall-time reduction was 4.57%, which is a remarkable improvement in just two months. Of the 629 benchmark measurements, 555 of them improved and only 74 regressed. A number of benchmarks saw double-digit percentage reductions. The technical term for this result is “a sea of green”. rustdoc In my last post I mentioned how Noah Lev got some enormous speed wins on rustdoc. He recently wrote a post explaining in some detail exactly how he did this. It’s an interesting and satisfying read.
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