This could avoid taking a lock in CalibratedClocks.GetTime.
贡献者指南
技术栈
go
领域
backendperformance
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。
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
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。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Go programmingconcurrencygVisor codebase
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。
25
研究方向
Investigate the CalibratedClocks.GetTime function in the sentry/time package. Understand the current mutex based locking and design a sequence number read lock to avoid contention. Ensure memory ordering guarantees are met. The main file is likely pkg/sentry/time/calibrated clock.go.
sentry/time: consider a sequence number of read locking · google/gvisor#181 | Good First Issue