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Aug 18, 2022
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22 changes: 21 additions & 1 deletion draft/2022-08-17-this-week-in-rust.md
Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,27 @@ If you are a Rust project owner and are looking for contributors, please submit

### Rust Compiler Performance Triage

<!-- Perf results go here -->
A fairly quiet week for performance, with the exception of the LLVM 15 upgrade
which resulted in many changes, mostly to the positive.

Triage done by **@simulacrum**.
Revision range: [cc4dd6fc9f..14a459b3](https://perf.rust-lang.org/?start=cc4dd6fc9f1a5c798df269933c7e442b79661a86&end=14a459bf37bc19476d43e0045d078121c12d3fef&absolute=false&stat=instructions%3Au)

**Summary**:

| (instructions:u) | mean | max | count |
|:----------------:|:----:|:---:|:-----:|
| Regressions ❌ <br /> (primary) | 0.7% | 7.7% | 62 |
| Regressions ❌ <br /> (secondary) | 1.3% | 5.0% | 51 |
| Improvements ✅ <br /> (primary) | -1.8% | -6.9% | 93 |
| Improvements ✅ <br /> (secondary) | -2.4% | -22.0% | 128 |
| All ❌✅ (primary) | -0.8% | 7.7% | 155 |


2 Regressions, 4 Improvements, 2 Mixed; 1 of them in rollups
38 artifact comparisons made in total

[Full report](https://github.com/rust-lang/rustc-perf/blob/master/triage/2022-08-16.md)

### Call for Testing

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