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Snailclimb merged 1 commit into from
Apr 16, 2021
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update java线程池学习总结.md #1163

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2 changes: 1 addition & 1 deletion docs/java/multi-thread/java线程池学习总结.md
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Expand Up @@ -715,7 +715,7 @@ Wed Nov 13 13:40:43 CST 2019::pool-1-thread-5

#### 5.1.3 为什么不推荐使用`FixedThreadPool`？

**`FixedThreadPool` 使用无界队列 `LinkedBlockingQueue`（队列的容量为 Intger.MAX_VALUE）作为线程池的工作队列会对线程池带来如下影响 ：**
**`FixedThreadPool` 使用无界队列 `LinkedBlockingQueue`（队列的容量为 Integer.MAX_VALUE）作为线程池的工作队列会对线程池带来如下影响 ：**

1. 当线程池中的线程数达到 `corePoolSize` 后，新任务将在无界队列中等待，因此线程池中的线程数不会超过 corePoolSize；
2. 由于使用无界队列时 `maximumPoolSize` 将是一个无效参数，因为不可能存在任务队列满的情况。所以，通过创建 `FixedThreadPool`的源码可以看出创建的 `FixedThreadPool` 的 `corePoolSize` 和 `maximumPoolSize` 被设置为同一个值。
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