Add vectored positioned I/O on Unix by a1phyr · Pull Request #89518 · rust-lang/rust (original) (raw)

Finished benchmarking commit (0fbfc3e): comparison URL.

Overall result: ❌ regressions - ACTION NEEDED

Next Steps: If you can justify the regressions found in this perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please open an issue or create a new PR that fixes the regressions, add a comment linking to the newly created issue or PR, and then add the perf-regression-triaged label to this PR.

@rustbot label: +perf-regression
cc @rust-lang/wg-compiler-performance

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

mean range count
Regressions ❌ (primary) 0.2% [0.2%, 0.3%] 4
Regressions ❌ (secondary) - - 0
Improvements ✅ (primary) - - 0
Improvements ✅ (secondary) - - 0
All ❌✅ (primary) 0.2% [0.2%, 0.3%] 4

Max RSS (memory usage)

Results

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) 1.3% [1.3%, 1.3%] 1
Regressions ❌ (secondary) - - 0
Improvements ✅ (primary) -5.7% [-5.7%, -5.7%] 1
Improvements ✅ (secondary) -2.9% [-3.0%, -2.7%] 2
All ❌✅ (primary) -2.2% [-5.7%, 1.3%] 2

Cycles

Results

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) 0.8% [0.6%, 1.0%] 8
Regressions ❌ (secondary) 0.8% [0.8%, 0.8%] 1
Improvements ✅ (primary) - - 0
Improvements ✅ (secondary) - - 0
All ❌✅ (primary) 0.8% [0.6%, 1.0%] 8