Perf triage, 2020-06-30.

Author: nnethercote

triage/2020.md

@@ -1,8 +1,34 @@
 # 2020 Triage Logs
 
-See the [README](README.md) for details on how these logs are collated.
+See the [README](README.md) for details on how these logs are collated. They
+are in reverse chronological order.
 
-They are in reverse chronological order.
+## 2020-06-30
+
+Triage done by njn. Latest revision: 0ca7f74dbd23a3e8ec491cd3438f490a3ac22741.
+Three regressions, two of them on rollups; two improvements, one on a rollup.
+
+Regressions
+- [Rollup of 13 pull requests](https://github.com/rust-lang/rust/pull/73756)
+  ([instructions](https://perf.rust-lang.org/compare.html?start=14e65d5e95da0f7e4f9127cf1598fa46f33972e8&end=9672b5e95c520774cc17bffc7031c80a1bcf4b4c&stat=instructions:u)):
+  Up to 1.7% losses on many benchmarks, affecting `incr-unchanged` runs the
+  most. Might be due to [#73102](https://github.com/rust-lang/rust/pull/73102)
+  or [#73597](https://github.com/rust-lang/rust/pull/73597).
+- [Rollup of 11 pull requests](https://github.com/rust-lang/rust/pull/73669)
+  ([instructions](https://github.com/rust-lang/rust/compare/ff5b446d2fdbd898bc97a751f2f72858de185cf1...0c04344d86f9598f20d9ec86fe87ea2a5d6ff8e6)):
+  Up to 2.1% losses on a few benchmarks, mostly on `incr-unchanged` runs.
+- [Always capture tokens for `macro_rules!` arguments](https://github.com/rust-lang/rust/pull/73293)
+  ([instructions](https://github.com/rust-lang/rust/compare/0c04344d86f9598f20d9ec86fe87ea2a5d6ff8e6...3c90ae8404b6b83bc3cba35840ddf7edd500cc86), [max-rss](https://perf.rust-lang.org/compare.html?start=0c04344d86f9598f20d9ec86fe87ea2a5d6ff8e6&end=3c90ae8404b6b83bc3cba35840ddf7edd500cc86&stat=max-rss)):
+  Up to 6.1% losses on the artificial `deep-vector` benchmark, and memory
+  increases on the same benchmark.
+
+Improvements
+- [Rollup of 9 pull requests](https://github.com/rust-lang/rust/pull/73643)
+  ([instructions](https://github.com/rust-lang/rust/compare/3b1c08c68ccc2c222f84384c836b5e167e2bc241...1557fb031b272b4c5bfcc7de5df7eddc7b36a584)):
+  Up to 13.6% wins on `wg-grammar`, tiny wins on a couple of other benchmarks.
+- [Revert PR #72389 - "Explain move errors that occur due to method calls involving `self`"](https://github.com/rust-lang/rust/pull/73594)
+  ([instructions](https://github.com/rust-lang/rust/compare/6bb3dbfc6c6d8992d08431f320ba296a0c2f7498...cbf356a1a5677b1c073f09ba833d8247c7ed01aa)):
+  Up to 3.1% wins on a few benchmarks.
 
 ## 2020-06-23