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合理地配置线程池
2022-06-12 19:11:00 【InfoQ】
合理地配置线程池
- 任务的性质:CPU密集型任务、IO密集型任务和混合型任务。
- 任务的优先级:高、中和低。
- 任务的执行时间:长、中和短。
- 任务的依赖性:是否依赖其他系统资源,如数据库连接。
线程池的监控
- taskCount:线程池需要执行的任务数量。
- completedTaskCount:线程池在运行过程中已完成的任务数量,小于或等于taskCount。
- largestPoolSize:线程池里曾经创建过的最大线程数量。通过这个数据可以知道线程池是否曾经满过。如该数值等于线程池的最大大小,则表示线程池曾经满过。
- getPoolSize:线程池的线程数量。如果线程池不销毁的话,线程池里的线程不会自动销毁,所以这个大小只增不减。
- getActiveCount:获取活动的线程数。
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