Attempt to use the high part of the size_hint in collect (again) by scottmcm · Pull Request #137908 · rust-lang/rust (original) (raw)
Finished benchmarking commit (272c07f): comparison URL.
Overall result: ❌ regressions - no action needed
Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR may lead to changes in compiler perf.
@bors rollup=never
@rustbot label: -S-waiting-on-perf -perf-regression
Instruction count
This is the most reliable metric that we have; it was used to determine the overall result at the top of this comment. However, even this metric can sometimes exhibit noise.
| mean | range | count | |
|---|---|---|---|
| Regressions ❌ (primary) | 0.5% | [0.5%, 0.5%] | 1 |
| Regressions ❌ (secondary) | - | - | 0 |
| Improvements ✅ (primary) | - | - | 0 |
| Improvements ✅ (secondary) | - | - | 0 |
| All ❌✅ (primary) | 0.5% | [0.5%, 0.5%] | 1 |
Max RSS (memory usage)
Results (primary 3.4%, secondary -2.0%)
This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
| mean | range | count | |
|---|---|---|---|
| Regressions ❌ (primary) | 3.4% | [2.3%, 5.4%] | 3 |
| Regressions ❌ (secondary) | - | - | 0 |
| Improvements ✅ (primary) | - | - | 0 |
| Improvements ✅ (secondary) | -2.0% | [-2.6%, -1.4%] | 2 |
| All ❌✅ (primary) | 3.4% | [2.3%, 5.4%] | 3 |
Cycles
Results (secondary -7.9%)
This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
| mean | range | count | |
|---|---|---|---|
| Regressions ❌ (primary) | - | - | 0 |
| Regressions ❌ (secondary) | - | - | 0 |
| Improvements ✅ (primary) | - | - | 0 |
| Improvements ✅ (secondary) | -7.9% | [-8.6%, -7.1%] | 2 |
| All ❌✅ (primary) | - | - | 0 |
Binary size
Results (primary 0.0%)
This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
| mean | range | count | |
|---|---|---|---|
| Regressions ❌ (primary) | 0.0% | [0.0%, 0.2%] | 13 |
| Regressions ❌ (secondary) | - | - | 0 |
| Improvements ✅ (primary) | -0.1% | [-0.1%, -0.0%] | 3 |
| Improvements ✅ (secondary) | - | - | 0 |
| All ❌✅ (primary) | 0.0% | [-0.1%, 0.2%] | 16 |
Bootstrap: 773.006s -> 772.399s (-0.08%)
Artifact size: 361.95 MiB -> 361.93 MiB (-0.01%)