计算代码运行速度

StopWatch stopWatch = new StopWatch() ;
        stopWatch.start(); // 计算撮合速度
        for (EntrustOrder entrustOrder : entrustOrders) {
            disruptorTemplate.onData(BeanUtils.entrustOrder2Order(entrustOrder)); // 往ringbuffer 中放 // BeanUtils.entrustOrder2Order 数据转换
        } // BeanUtils.entrustOrder2Order(entrustOrder) 是数据转换 就是从entrustOrder  筛选出 Order 需要的属性数据
        stopWatch.stop();
        long lastTaskTimeMillis = stopWatch.getLastTaskTimeMillis();
        System.out.println("总条数:+"+entrustOrders.size()+" ,总共耗时:"+lastTaskTimeMillis+"ms");