java - 减少有许多 hibernate 线程时使用的操作系统线程数

Question

我有一个有数百个线程的系统。大多数线程在给定时间内处于 hibernate 或等待状态，但它们可以随时唤醒。我想减少专用于我的系统的操作系统线程数。你知道一个简单的方法吗？例如，是否有一个线程池包，每当线程进入休眠模式时，它都会存储状态并杀死线程。每当它醒来时，它都会以旧线程的状态启动新线程。

谢谢

Answer 1

你在找类似 ThreadPoolExecutor 的东西吗？ ？

An ExecutorService that executes each submitted task using one of possibly several pooled threads, normally configured using Executors factory methods.

Thread pools address two different problems: they usually provide improved performance when executing large numbers of asynchronous tasks, due to reduced per-task invocation overhead, and they provide a means of bounding and managing the resources, including threads, consumed when executing a collection of tasks. Each ThreadPoolExecutor also maintains some basic statistics, such as the number of completed tasks.