fix: Issue#2650 - 修复CAS示例代码的并发打印livelock问题#2799
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Senrian wants to merge 9 commits intoSnailclimb:mainfrom
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fix: Issue#2650 - 修复CAS示例代码的并发打印livelock问题#2799Senrian wants to merge 9 commits intoSnailclimb:mainfrom
Senrian wants to merge 9 commits intoSnailclimb:mainfrom
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修改文本内容问题
Update 操作系统常见面试题&知识点总结.md
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修复 Issue #2650
问题
现有代码使用
Thread.yield()且currentValue == targetValue - 1条件存在 livelock 风险:当线程读取值后被其他线程抢先更新,当前线程的 CAS 会永远失败。解决方案
currentValue >= targetValue,避免 livelockSystem.out.print移入 CAS 成功块内,确保打印值与设置值一致Thread.yield()避免不必要的 CPU 让出