uutils/coreutils

reduce test execution: coreutils::tests::test_tail::*

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#10,097 创建于 2026年1月7日

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 (2 评论) (0 反应) (0 负责人)Rust (23,246 star) (1,852 fork)batch import
U - tailgood first issue

描述

it is currently 12.030s for the longest see https://app.codecov.io/gh/uutils/coreutils/tests

see: coreutils::tests::test_tail::test_follow_name_move_retry2 12.030s coreutils::tests::test_tail::test_follow_descriptor_vs_rename1 12.029s coreutils::tests::test_tail::test_retry7 10.030s coreutils::tests::test_tail::test_follow_name_move_retry1 10.029s coreutils::tests::test_tail::test_follow_name_move2 8.029s coreutils::tests::test_tail::test_follow_name_move_create2 8.029s coreutils::tests::test_tail::test_retry4 8.029s coreutils::tests::test_tail::test_follow_name_multiple 7.541s coreutils::tests::test_tail::test_retry9 7.018s coreutils::tests::test_tail::test_follow_descriptor_vs_rename2 6.029s coreutils::tests::test_tail::test_follow_name_retry_headers 6.029s

Ideally, they should take less a second

贡献者指南

技术栈
rust
领域
testingperformance
议题类型
performance
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。
3
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。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
basic Rusttest optimization concepts
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。
60
研究方向
The issue lists specific test functions in coreutils::tests::test tail that take too long (up to 12s). Start by examining the test implementations in the repository, likely in `tests/` or similar directory. Look for common patterns like unnecessary sleeps, waits, or repeated setups. Consider using faster I/O or reducing timeouts. Check if the tests can be refactored to use mock file operations instead of real filesystem operations to speed them up. The goal is to bring each test under 1 second. Refer to the Codecov link for more details.