[xtqqczze]

WIP: Depends on a new filedescriptor crate release to remove the patch.crates-io override.

[sylvestre]

still a draft ?

[xtqqczze]

still a draft ?

I don't think we can take this with a patch.crates-io override?

[github-actions]

GNU testsuite comparison:

GNU test failed: tests/tail/truncate. tests/tail/truncate is passing on 'main'. Maybe you have to rebase?
Congrats! The gnu test tests/id/setgid is no longer failing!

[codspeed]

Merging this PR will improve performance by 20.57%

2 warnings, 1 note

⚠️ 122 benchmarks are dominated by system calls

System calls cannot be simulated consistently and are left out of the measure. The reported value understates the real cost. Switch to the Walltime instrument to measure them.

Learn more about system calls

See affected benchmarks

⚠️ 1 benchmark with a significant change ran on different hardware

Its base and head results were measured on machines with a different CPU, core count or memory, so the change might not come from the code. Run base and head on the same runner type.

Learn more about Macro Runners

See affected benchmarks

ℹ️ 1 benchmark has no flamegraph

The flamegraph wasn't generated: most of the time was spent in runtime internals, which would leave nothing useful to analyze.

See affected benchmarks

⚡ 1 improved benchmark
✅ 400 untouched benchmarks
⏩ 70 skipped benchmarks¹

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	CPU Simulation	mv_force_overwrite	154.4 ms	128.1 ms	+20.57%

Tip

Curious why performance improved? Comment @codspeedbot explain why performance improved on this PR, or directly use the CodSpeed MCP with your agent.

---

_{Comparing xtqqczze:refactor-test_stdin_is_socket2 (52eae24) with main (aea67c0)²}

Footnotes

1. 70 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on main (fee61ff) during the generation of this report, so aea67c0 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[xtqqczze]

Depends on #15536.