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Java虚拟机对锁优化所做的努力作为一款共用平台，JDK本身也为并发程序的性能绞尽脑汁。在JDK内部也想尽一切办法提供并发时的系统吞吐量。这里，我将向大家简单介绍几种JDK内部的“锁”优化策略。一、锁偏向锁偏向是一种针对加锁操作的优化手段。它的核心思想是:如果一个线程获得了锁，那么锁就进入偏向模式。...

Java 虚拟机对锁优化所做的努力

作为一款公用平台，JDK 本身也为并发程序的性能绞尽脑汁，在 JDK 内部也想尽一切办法提供并发时的系统吞吐量。这里，我将向大家简单介绍几种 JDK 内部的 “锁” 优化策略。1、锁偏向锁偏向是一种针对加锁操作的优化手段。如果一个线程获得了锁，那么锁就进入偏向模式。当这个线程再次请求锁时，无须再做...

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更新时间 2024-05-17 10:11:46

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