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+# 2024-12-23 Triage Log
+
+We missed triage last week due to some process issues, so this triage includes two weeks of data. The overall result is positive, due to parser optimizations ([#133793](https://github.com/rust-lang/rust/pull/133793)), trait solving optimizations ([#134501](https://github.com/rust-lang/rust/pull/134501), [#132325](https://github.com/rust-lang/rust/pull/132325)) and bumping the cc crate ([#134505](https://github.com/rust-lang/rust/pull/134505)), which [improved the performance](https://github.com/rust-lang/cc-rs/pull/1279) of C/C++ dependencies of the compiler.
+
+Triage done by **@kobzol**.
+Revision range: [1b3fb316..0eca4dd3](https://perf.rust-lang.org/?start=1b3fb316751227d30b1523ed0e3f00d83956d4d0&end=0eca4dd3205a01dba4bd7b7c140ec370aff03440&absolute=false&stat=instructions%3Au)
+
+**Summary**:
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | 0.5% | [0.3%, 0.8%] | 3 |
+| Regressions ❌
(secondary) | 1.0% | [1.0%, 1.0%] | 1 |
+| Improvements ✅
(primary) | -1.8% | [-7.5%, -0.3%] | 254 |
+| Improvements ✅
(secondary) | -1.3% | [-5.4%, -0.3%] | 224 |
+| All ❌✅ (primary) | -1.8% | [-7.5%, 0.8%] | 257 |
+
+4 Regressions, 10 Improvements, 12 Mixed; 9 of them in rollups
+90 artifact comparisons made in total
+
+#### Regressions
+
+Rollup of 6 pull requests [#134296](https://github.com/rust-lang/rust/pull/134296) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=f5079d00e63718235f95353df38ebb0891bab5b4&end=f1ec5d64b301462323d7e1782551687cd3a351d0&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:----:|:------------:|:-----:|
+| Regressions ❌
(primary) | 0.3% | [0.2%, 0.4%] | 7 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | - | - | 0 |
+| Improvements ✅
(secondary) | - | - | 0 |
+| All ❌✅ (primary) | 0.3% | [0.2%, 0.4%] | 7 |
+
+- The regressions were caused by [#134081](https://github.com/rust-lang/rust/pull/134081).
+- It was not deemed worthy to fix them, because of added maintenance burden.
+- Marked as triaged.
+
+Remove queries from the driver interface [#134302](https://github.com/rust-lang/rust/pull/134302) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=52f4785f80c1516ebece019ae4b69763ffb9a618&end=978c659b72ed7520332a74321dc8accf48b06d94&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:----:|:------------:|:-----:|
+| Regressions ❌
(primary) | 0.3% | [0.1%, 0.6%] | 11 |
+| Regressions ❌
(secondary) | 0.5% | [0.2%, 0.7%] | 18 |
+| Improvements ✅
(primary) | - | - | 0 |
+| Improvements ✅
(secondary) | - | - | 0 |
+| All ❌✅ (primary) | 0.3% | [0.1%, 0.6%] | 11 |
+
+- A few tiny regressions in doc builds, caused by a cleanup of the compiler driver interface.
+- Marked as triaged.
+
+Rollup of 8 pull requests [#134582](https://github.com/rust-lang/rust/pull/134582) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=bad2aa47219ae54d51d353e145d33d0a1792327d&end=5f23ef7d3f7a8c3e0ca5c4e1978829c0448a3686&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:----:|:------------:|:-----:|
+| Regressions ❌
(primary) | 0.2% | [0.2%, 0.2%] | 6 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | - | - | 0 |
+| Improvements ✅
(secondary) | - | - | 0 |
+| All ❌✅ (primary) | 0.2% | [0.2%, 0.2%] | 6 |
+
+- Tiny regression on a single benchmark, I don't think that it's worthy to investigate further.
+- Marked as triaged.
+
+Asserts the maximum value that can be returned from `Vec::len` [#131193](https://github.com/rust-lang/rust/pull/131193) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=b22856d192567a55a1d2788fbc3084e3f9cb220f&end=303e8bd768526a5812bb1776e798e829ddb7d3ca&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:----:|:------------:|:-----:|
+| Regressions ❌
(primary) | 0.3% | [0.2%, 1.2%] | 104 |
+| Regressions ❌
(secondary) | 0.3% | [0.1%, 0.8%] | 38 |
+| Improvements ✅
(primary) | - | - | 0 |
+| Improvements ✅
(secondary) | - | - | 0 |
+| All ❌✅ (primary) | 0.3% | [0.2%, 1.2%] | 104 |
+
+- The post-merge regression seems to be much larger than originally expected.
+- Asked the PR author about this.
+- Not marking as triaged yet.
+
+#### Improvements
+
+Rollup of 9 pull requests [#134137](https://github.com/rust-lang/rust/pull/134137) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=33c245b9e98bc91e18ea1c5033824f4c6f92766f&end=5a6036a1802262f8cf02192b02026688d396f1d7&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.9% | [-0.9%, -0.9%] | 1 |
+| Improvements ✅
(secondary) | - | - | 0 |
+| All ❌✅ (primary) | -0.9% | [-0.9%, -0.9%] | 1 |
+
+
+Rollup of 4 pull requests [#134349](https://github.com/rust-lang/rust/pull/134349) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=d18506299bfb20488aba466a69641a2bab6f7a4a&end=c26db435bf8aee2efc397aab50f3a21eb351d6e5&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.3% | [-0.8%, -0.1%] | 4 |
+| Improvements ✅
(secondary) | -0.2% | [-0.2%, -0.2%] | 4 |
+| All ❌✅ (primary) | -0.3% | [-0.8%, -0.1%] | 4 |
+
+
+Rollup of 9 pull requests [#134395](https://github.com/rust-lang/rust/pull/134395) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=83ab648e00ecbdef415baba3cfbac6f5df263b1c&end=6d9f6ae36ae1299d6126ba40c15191f7aa3b79d8&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | - | - | 0 |
+| Improvements ✅
(secondary) | -0.3% | [-0.7%, -0.2%] | 9 |
+| All ❌✅ (primary) | - | - | 0 |
+
+
+rework winnowing to sensibly handle global where-bounds [#132325](https://github.com/rust-lang/rust/pull/132325) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=978c659b72ed7520332a74321dc8accf48b06d94&end=604d6691d9ee5c88a05569dd3f707b20afd76e97&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.4% | [-1.0%, -0.2%] | 64 |
+| Improvements ✅
(secondary) | -1.6% | [-2.1%, -0.7%] | 9 |
+| All ❌✅ (primary) | -0.4% | [-1.0%, -0.2%] | 64 |
+
+
+Try to fix perf regression in rustdoc after hir attributes [#134376](https://github.com/rust-lang/rust/pull/134376) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=a4cb3c831823d9baa56c3d90514b75b2660116fa&end=7e6bf003f396aeea510577b4e925d1d95c12ff53&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.3% | [-0.6%, -0.2%] | 10 |
+| Improvements ✅
(secondary) | -0.4% | [-0.6%, -0.2%] | 18 |
+| All ❌✅ (primary) | -0.3% | [-0.6%, -0.2%] | 10 |
+
+
+Speed up `Parser::expected_tokens` [#133793](https://github.com/rust-lang/rust/pull/133793) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=11663cd3bfefef7d34e8f0892c250bf698049392&end=9e136a30a965bf4e63f03095c57df7257bf96fd6&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.9% | [-2.5%, -0.2%] | 213 |
+| Improvements ✅
(secondary) | -0.8% | [-2.5%, -0.1%] | 105 |
+| All ❌✅ (primary) | -0.9% | [-2.5%, -0.2%] | 213 |
+
+
+Rollup of 5 pull requests [#134559](https://github.com/rust-lang/rust/pull/134559) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=8a1f8039a7ded79d3d4fe97b110016d89f2b11e2&end=fcc1615e47100b376d0a6166faccdd4a8253c314&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.5% | [-1.4%, -0.1%] | 17 |
+| Improvements ✅
(secondary) | -3.1% | [-4.7%, -1.5%] | 3 |
+| All ❌✅ (primary) | -0.5% | [-1.4%, -0.1%] | 17 |
+
+
+handle member constraints directly in the mir type checker [#134501](https://github.com/rust-lang/rust/pull/134501) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=54dcff104b0acf01716a94429717d364fe43f90d&end=9bd5f3387dd1e24e3493fd53c2f80e5991a155b6&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.4% | [-0.5%, -0.2%] | 65 |
+| Improvements ✅
(secondary) | -0.3% | [-0.6%, -0.0%] | 58 |
+| All ❌✅ (primary) | -0.4% | [-0.5%, -0.2%] | 65 |
+
+
+Bump compiler `cc` to 1.2.5 [#134505](https://github.com/rust-lang/rust/pull/134505) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=387b245664a81f58260a6b565aa0b2fdf19752fb&end=4c40c89c26e9a6c761e2c6d44662028e33e9cb04&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.7% | [-7.6%, -0.1%] | 244 |
+| Improvements ✅
(secondary) | -0.7% | [-1.4%, -0.1%] | 196 |
+| All ❌✅ (primary) | -0.7% | [-7.6%, -0.1%] | 244 |
+
+- The improvements were probably caused by https://github.com/rust-lang/cc-rs/pull/1279.
+
+cleanup `TypeVerifier` [#134465](https://github.com/rust-lang/rust/pull/134465) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=908af5ba4ad921fec81d95c97411c867cdcb33fa&end=0eca4dd3205a01dba4bd7b7c140ec370aff03440&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.3% | [-0.4%, -0.2%] | 6 |
+| Improvements ✅
(secondary) | -0.4% | [-0.5%, -0.1%] | 16 |
+| All ❌✅ (primary) | -0.3% | [-0.4%, -0.2%] | 6 |
+
+
+#### Mixed
+
+Introduce `MixedBitSet` [#133891](https://github.com/rust-lang/rust/pull/133891) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=1b3fb316751227d30b1523ed0e3f00d83956d4d0&end=f6cb952dc115fd1311b02b694933e31d8dc8b002&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | 0.6% | [0.2%, 1.0%] | 8 |
+| Improvements ✅
(primary) | -0.6% | [-1.3%, -0.2%] | 67 |
+| Improvements ✅
(secondary) | -0.7% | [-2.0%, -0.2%] | 28 |
+| All ❌✅ (primary) | -0.6% | [-1.3%, -0.2%] | 67 |
+
+- More improvements than regressions, especially on primary benchmarks.
+- Already marked as triaged.
+
+Rollup of 10 pull requests [#134108](https://github.com/rust-lang/rust/pull/134108) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=b597d2a099a1b5b79acef05175a9ac847047f8a1&end=499605271718bceaa629f0b954502c0040e4456b&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | 0.3% | [0.2%, 0.8%] | 9 |
+| Regressions ❌
(secondary) | 0.3% | [0.2%, 0.3%] | 7 |
+| Improvements ✅
(primary) | - | - | 0 |
+| Improvements ✅
(secondary) | -0.4% | [-0.7%, -0.2%] | 6 |
+| All ❌✅ (primary) | 0.3% | [0.2%, 0.8%] | 9 |
+
+- Perf. runs for the most suspect PRs in the rollup haven't shown anything, but the regression is tiny,
+so it does not seem to be worthy of further investigation.
+- Marked as triaged.
+
+We don't need `NonNull::as_ptr` debuginfo [#133899](https://github.com/rust-lang/rust/pull/133899) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=3da8bfb87f2bdcff56ed845383aa1c4fcd2c8705&end=dd436ae2a628c523c967a7876873a96c44b1e382&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | 0.6% | [0.2%, 0.9%] | 2 |
+| Regressions ❌
(secondary) | 0.5% | [0.2%, 1.1%] | 4 |
+| Improvements ✅
(primary) | -0.9% | [-2.1%, -0.3%] | 34 |
+| Improvements ✅
(secondary) | -2.7% | [-3.0%, -2.5%] | 2 |
+| All ❌✅ (primary) | -0.9% | [-2.1%, 0.9%] | 36 |
+
+- More improvements than regressions, and in particular very nice binary size wins.
+- Marked as triaged.
+
+Switch inline(always) in core/src/fmt/rt.rs to plain inline [#134047](https://github.com/rust-lang/rust/pull/134047) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=dd436ae2a628c523c967a7876873a96c44b1e382&end=4847d6a9d07d4be9ba3196f6ad444af2d7bdde72&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | 0.5% | [0.5%, 0.5%] | 1 |
+| Improvements ✅
(primary) | -0.4% | [-0.5%, -0.3%] | 6 |
+| Improvements ✅
(secondary) | - | - | 0 |
+| All ❌✅ (primary) | -0.4% | [-0.5%, -0.3%] | 6 |
+
+- More improvements than regressions.
+- Marked as triaged.
+
+Move impl constness into impl trait header [#134122](https://github.com/rust-lang/rust/pull/134122) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=4847d6a9d07d4be9ba3196f6ad444af2d7bdde72&end=e217f949179d7337d0cae303881449360937211f&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | 0.8% | [0.8%, 0.8%] | 1 |
+| Regressions ❌
(secondary) | 1.7% | [1.6%, 1.9%] | 6 |
+| Improvements ✅
(primary) | -0.3% | [-1.1%, -0.1%] | 59 |
+| Improvements ✅
(secondary) | -0.7% | [-2.5%, -0.2%] | 41 |
+| All ❌✅ (primary) | -0.3% | [-1.1%, 0.8%] | 60 |
+
+- More improvements than regressions.
+- Marked as triaged.
+
+Bounds-check with PtrMetadata instead of Len in MIR [#133734](https://github.com/rust-lang/rust/pull/133734) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=0aeaa5eb22180fdf12a8489e63c4daa18da6f236&end=b57d93d8b9525fa261404b4cd9c0670eeb1264b8&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | 0.3% | [0.2%, 0.3%] | 2 |
+| Improvements ✅
(primary) | -1.4% | [-1.4%, -1.4%] | 1 |
+| Improvements ✅
(secondary) | -0.6% | [-0.8%, -0.4%] | 6 |
+| All ❌✅ (primary) | -1.4% | [-1.4%, -1.4%] | 1 |
+
+- Single tiny regression, otherwise tiny improvements.
+- Marked as triaged.
+
+Remove support for specializing ToString outside the standard library [#134258](https://github.com/rust-lang/rust/pull/134258) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=7caf35b2e5401d7740fdc567fdc388059208150b&end=4790a435cbcb55c94ccdef51bf7a9b2e55824528&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | 0.3% | [0.2%, 0.5%] | 3 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.4% | [-0.4%, -0.4%] | 1 |
+| Improvements ✅
(secondary) | - | - | 0 |
+| All ❌✅ (primary) | 0.1% | [-0.4%, 0.5%] | 4 |
+
+- Tiny regression that was deemed acceptable.
+- Marked as triaged.
+
+Modifies the index instruction from `gep [0 x %Type]` to `gep %Type` [#134117](https://github.com/rust-lang/rust/pull/134117) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=0894fb0fbf457916bb013168476d802852d9dd6a&end=a611773d80486c8511ed554400eab0681a8bb068&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | 0.1% | [0.1%, 0.2%] | 2 |
+| Regressions ❌
(secondary) | 0.6% | [0.2%, 1.1%] | 17 |
+| Improvements ✅
(primary) | - | - | 0 |
+| Improvements ✅
(secondary) | -1.3% | [-1.4%, -1.2%] | 4 |
+| All ❌✅ (primary) | 0.1% | [0.1%, 0.2%] | 2 |
+
+- The post-merge perf. is very similar to the previous perf. runs, which were deemed acceptable during review.
+- Marked as triaged.
+
+Hir attributes [#131808](https://github.com/rust-lang/rust/pull/131808) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=c26db435bf8aee2efc397aab50f3a21eb351d6e5&end=f2b91ccbc27cb06369aa2dd934ff219e156408a8&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | 0.4% | [0.2%, 1.1%] | 9 |
+| Regressions ❌
(secondary) | 0.4% | [0.1%, 0.6%] | 20 |
+| Improvements ✅
(primary) | -0.2% | [-0.4%, -0.2%] | 3 |
+| Improvements ✅
(secondary) | -0.3% | [-0.7%, -0.2%] | 5 |
+| All ❌✅ (primary) | 0.3% | [-0.4%, 1.1%] | 12 |
+
+- The regression was fixed in [#134376](https://github.com/rust-lang/rust/pull/134376).
+- Marked as triaged.
+
+Rollup of 11 pull requests [#134470](https://github.com/rust-lang/rust/pull/134470) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=057bdb37eccff6a2bd402509bbbadb9d73ad7bf5&end=a52085d9f6a6e596b0cbad4502cddf86bc878028&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | - | - | 0 |
+| Regressions ❌
(secondary) | 0.2% | [0.1%, 0.4%] | 7 |
+| Improvements ✅
(primary) | -0.2% | [-0.3%, -0.1%] | 3 |
+| Improvements ✅
(secondary) | -0.5% | [-0.5%, -0.3%] | 5 |
+| All ❌✅ (primary) | -0.2% | [-0.3%, -0.1%] | 3 |
+
+- Regressions seem to be balanced with improvements.
+- Marked as triaged.
+
+Rollup of 8 pull requests [#134492](https://github.com/rust-lang/rust/pull/134492) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=023521e6825edfa6df01e392520d7cb120eab158&end=bab18a542d95b5c76620d0a0d383d7ab683cc1b7&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | 0.4% | [0.2%, 0.7%] | 10 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | - | - | 0 |
+| Improvements ✅
(secondary) | -0.1% | [-0.1%, -0.1%] | 1 |
+| All ❌✅ (primary) | 0.4% | [0.2%, 0.7%] | 10 |
+
+- The regressions seem to have blipped back soon after
+- Marked as triaged.
+
+Delete `Rvalue::Len` 🎉 [#134330](https://github.com/rust-lang/rust/pull/134330) [(Comparison Link)](https://perf.rust-lang.org/compare.html?start=303e8bd768526a5812bb1776e798e829ddb7d3ca&end=e108481f74ff123ad98a63bd107a18d13035b275&stat=instructions:u)
+
+| (instructions:u) | mean | range | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌
(primary) | 0.3% | [0.3%, 0.4%] | 2 |
+| Regressions ❌
(secondary) | - | - | 0 |
+| Improvements ✅
(primary) | -0.3% | [-0.8%, -0.2%] | 7 |
+| Improvements ✅
(secondary) | -0.3% | [-0.4%, -0.2%] | 2 |
+| All ❌✅ (primary) | -0.2% | [-0.8%, 0.4%] | 9 |
+
+- More improvements than regressions.
+- Marked as triaged.