microsoft/GSL

Add performance tests to PR actions

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#1,167 建立於 2024年11月12日

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Effort: MediumHelp WantedPriority: LowStatus: OpenType: Infra

描述

It is important to maintain performance parity to std::span (at the very least when Safe Buffers are enabled). In order to track this, we should have performance tests between std::span and gsl::span for the latest standard library implementation across Clang, GCC, and MSVC.

@galenelias put together small benchmark comparing the two implementations on various workloads. They have been attached for convenience and provide a good starting point.

span_bench.zip

貢獻者指南

技術棧
cpp
領域
performancetesting
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-2 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
fresh
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
C++performance testing
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
50
研究方向
Implement performance benchmarks comparing gsl::span to std::span, using the attached span bench.zip as a starting point. The benchmarks should measure various workloads across Clang, GCC, and MSVC. Ensure the tests are integrated into the CI pipeline so that performance regression can be tracked automatically.