sharkdp/hyperfine

Reserve cpus for benchmarking

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#751 创建于 2024年6月19日

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 (3 评论) (0 反应) (0 负责人)Rust (28,110 star) (479 fork)batch import
help wanted

描述

Hello, thank you for the great tool!

I was wondering whether it's better to combine this tool with something like cpuset, to reserve the cpus the benchmark and hyperfine run on.

Would this make a difference? I understand that hyperfine will catch outliers stemming from, e.g., competing programs, but would this be avoided in the first place by reserving the cpus?

Thank you for your time.

贡献者指南

技术栈
rust
领域
performance
议题类型
research
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
4
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-2 days
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active
清晰度议题是否清楚说明期望改动、验收标准和下一步。
unclear
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无
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
Explore the feasibility of integrating CPU pinning (e.g., using cpuset) into hyperfine to reduce benchmark variance. Review hyperfine's benchmarking loop in src/benchmark.rs and consider how to optionally set CPU affinity for the child process (e.g., via the nix crate or platform specific syscalls). Check if there are existing discussions or PRs about CPU isolation (none linked). Document the trade offs between using cpuset vs relying on hyperfine's statistical outlier detection.