diff --git a/draft/2024-12-04-this-week-in-rust.md b/draft/2024-12-04-this-week-in-rust.md index bebaa2c7a..a6f352315 100644 --- a/draft/2024-12-04-this-week-in-rust.md +++ b/draft/2024-12-04-this-week-in-rust.md @@ -110,7 +110,26 @@ If you are an event organizer hoping to expand the reach of your event, please s ### Rust Compiler Performance Triage - +Busy week with more PRs impacting performance than is typical. Luckily performance improvements outweighed regressions in real world benchmarks with the largest single performance gain coming from a change to no longer unconditionally do LLVM IR verification in debug builds which was just wasted work. + +Triage done by **@rylev**. +Revision range: [7db7489f..490b2cc0](https://perf.rust-lang.org/?start=7db7489f9bc274cb60c4956bfa56de0185eb1b9b&end=490b2cc09860dd62a7595bb07364d71c12ce4e60&absolute=false&stat=instructions%3Au) + +**Summary**: + +| (instructions:u) | mean | range | count | +|:----------------------------------:|:-----:|:--------------:|:-----:| +| Regressions ❌
(primary) | 0.5% | [0.2%, 1.9%] | 58 | +| Regressions ❌
(secondary) | 1.1% | [0.2%, 5.1%] | 85 | +| Improvements ✅
(primary) | -2.3% | [-8.2%, -0.2%] | 116 | +| Improvements ✅
(secondary) | -2.5% | [-8.9%, -0.1%] | 55 | +| All ❌✅ (primary) | -1.4% | [-8.2%, 1.9%] | 174 | + + +6 Regressions, 6 Improvements, 5 Mixed; 5 of them in rollups +49 artifact comparisons made in total + +[Full report here](https://github.com/rust-lang/rustc-perf/blob/fcd028e6e8117a881b7ffab448f549410c1c0dde/triage/2024-12-03.md) ### [Approved RFCs](https://github.com/rust-lang/rfcs/commits/master)