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17 changes: 16 additions & 1 deletion draft/2025-06-11-this-week-in-rust.md
Original file line number Diff line number Diff line change
Expand Up @@ -113,7 +113,22 @@ If you are an event organizer hoping to expand the reach of your event, please s

### Rust Compiler Performance Triage

<!-- Perf results go here -->
Mostly positive week, with a lot of improvements in the type system, especially in new solver and one big win in caching code. Regressions come from new warnings, with outsized impact on one benchmark with a lot of generated code.

Triage done by **@panstromek**.
Revision range: [2fc3deed..c31cccb7](https://perf.rust-lang.org/?start=2fc3deed9fcb8762ad57191e0195f06f7543e4a5&end=c31cccb7b5cc098b1a8c1794ed38d7fdbec0ccb0&absolute=false&stat=instructions%3Au)

**Summary**:

| (instructions:u) | mean | range | count |
|:----------------------------------:|:-----:|:---------------:|:-----:|
| Regressions ❌ <br /> (primary) | 3.1% | [0.3%, 8.5%] | 22 |
| Regressions ❌ <br /> (secondary) | 0.6% | [0.2%, 0.9%] | 3 |
| Improvements ✅ <br /> (primary) | -1.0% | [-3.4%, -0.2%] | 151 |
| Improvements ✅ <br /> (secondary) | -3.5% | [-66.5%, -0.2%] | 146 |
| All ❌✅ (primary) | -0.4% | [-3.4%, 8.5%] | 173 |

[Full report here](https://github.com/rust-lang/rustc-perf/blob/7a1e00ae0a30c783bdfa8e3c35e3b49ce88b58e9/triage/2025-06-09.md)

### [Approved RFCs](https://github.com/rust-lang/rfcs/commits/master)

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