Question

我有两个预定的任务。一个具有更高的优先级：必须最好地考虑其调度。第二个优先级较低：性能可能会影响其调度。

在ThreadGroup中，我们可以设置Priority。但是我不知道如何与执行器一起使用。

final ScheduledExecutorService serviceProduce = Executors.newScheduledThreadPool(2);

// May be delayed by performance
serviceProduce.scheduleAtFixedRate(new ComputeThread(), 0, 10, TimeUnit.MILLISECONDS);

// Should be kept as much as possible on schedule
serviceProduce.scheduleAtFixedRate(new ProduceOutputThread(), 0, 30, TimeUnit.MILLISECONDS);

Answer 1

这是我解决的方式：

ThreadGroup threadGroupCompute = new ThreadGroup("compute");
threadGroupCompute.setMaxPriority(Thread.NORM_PRIORITY);
threadGroupCompute.setDaemon(false);
ThreadFactory threadFacoryCompute = new ThreadFactory() {
    long cnt = 0;
    @Override
    public Thread newThread(Runnable r) {
        Thread t = new Thread(threadGroupCompute, r, "thread-" + threadGroupCompute.getName() + "-" + cnt++);
        return t;
    }
};
final ScheduledExecutorService executorCompute = new ScheduledThreadPoolExecutor(1, threadFacoryCompute);

// May be delayed by performance
executorCompute .scheduleAtFixedRate(new ComputeThread(), 0, 10, TimeUnit.MILLISECONDS);

这2次。一个线程组的优先级设置为Thread.NORM_PRIORITY，另一个线程组的优先级设置为Thread.MAX_PRIORITY

如何设置计划线程的相对优先级？

1 个答案: