线程池大类之WorkStealingPool

最新推荐文章于 2025-06-27 16:59:25 发布

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本文介绍了Java中的WorkStealingPool线程池，展示了如何创建和使用它来执行并发任务，重点在于守护线程和任务调度。通过实例演示了其工作原理和输出结果。

								           线程池大类之WorkStealingPool

package src.main.java.com.qqjx.thread;

/*
 * @Auther  wangpeng
 * @Date 2021/2/6
 */

import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

public class T11_WorkStealingPool {
    public static void main(String[] args) throws IOException {
        ExecutorService service = Executors.newWorkStealingPool();
        System.out.println(Runtime.getRuntime().availableProcessors());

        service.execute(new R(1000));
        service.execute(new R(2000));
        service.execute(new R(2000));
        service.execute(new R(2000)); //daemon
        service.execute(new R(2000));

        //由于产生的是精灵线程（守护线程、后台线程），主线程不阻塞的话，看不到输出
        System.in.read();
    }

    static class R implements Runnable {

        int time;

        R(int t) {
            this.time = t;
        }

        @Override
        public void run() {

            try {
                TimeUnit.MILLISECONDS.sleep(time);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

            System.out.println(time  + " " + Thread.currentThread().getName());

        }

    }
}

6
1000 ForkJoinPool-1-worker-1
2000 ForkJoinPool-1-worker-3
2000 ForkJoinPool-1-worker-4
2000 ForkJoinPool-1-worker-2
2000 ForkJoinPool-1-worker-5