java 线程的优先级的设置的测试

来源：互联网发布：怎样翻墙上外网知乎编辑：程序博客网时间：2024/06/11 17:26

线程的优先级，默认的是5，

最大的优先级是10

最小的优先级是1

我们测试将后执行的thread1优先级设置为10，先执行的thread2优先级设置为1，最后得出结果，优先级高thread1的获取cpu的机会更大，例如优先级为10的thread1的线程执行到了第3306665次了，thread2才执行到1014520次，几乎是thread2的执行的3倍的速度

        Thread thread1 = new Thread(new Runnable() {            @Override            public void run() {                for (int i = 0; i < 10000000; i++) {                    Log.d("kodulf", "thread1"+"  "+i);                }            }        });        Thread thread2 = new Thread(new Runnable() {            @Override            public void run() {                for (int i = 0; i < 10000000; i++) {                    Log.d("kodulf", "thread2"+"  "+i);                }            }        });        thread2.setPriority(1);        thread2.start();        thread1.setPriority(10);        thread1.start();

D/kodulf: thread2  1014519D/kodulf: thread1  3306664D/kodulf: thread2  1014520D/kodulf: thread1  3306665

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