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JVM 里的逻辑漏洞,居然让你的哈希表慢了 20%!
本文通过分析一段使用 ConcurrentHashMap 的代码发现,该段代码在 JDK 24 中比 JDK 23 快了 20% 以上,这一性能提升源于 JVM 对标量替换优化的改进。文章详细介绍了逃逸分析和标量替换的工作原理,以及它们如何影响对象的内存分配。此外,文章还讨论了 Java 内存管理 ...
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Returns to Syracuse as HC
Bill Cosby found guilty
To cut over 1,000 jobs
Declares energy emergency
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To spend $20B on moon base
VOA staff sues Lake
'Superman' actress dies
To fill Mullin’s Senate seat
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David Simon dies
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CA sues Trump admin
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To remove media offices
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Blocks TSA funding deal
Discharged from ICU
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Denmark holds early election
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Sign nuclear power deal
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