import java.util.HashSet; import java.util.Set; public class ThreadDemo extends Thread { private static Object wait; private static int threads = 250; private static int size = 1000; public ThreadDemo(){ } public void run() { synchronized (wait) { try { wait.wait(); } catch (Exception e) { e.printStackTrace(); } } for (int i = 0; i < size; i++) { long starttime = System.currentTimeMillis(); // 处理的业务逻辑 long endTime = System.currentTimeMillis(); long result = endTime - starttime; System.out.println("thredName " + Thread.currentThread().getName() + " time:" + result); } } public static void main(String args[]) throws Exception{ wait = new Object(); Set<ThreadDemo> ts = new HashSet<ThreadDemo>(); for(int i = 0; i < threads; i++) { ThreadDemo t = new ThreadDemo(); ts.add(t); t.start(); } synchronized (wait) { wait.notifyAll(); } } }