当hystrix超时时，如何打印它所用的时间？

import com.netflix.hystrix.HystrixCommand;
import com.netflix.hystrix.HystrixCommandGroupKey;

public class MyHystrixCommand extends HystrixCommand<String> {

    public MyHystrixCommand() {
        super(HystrixCommandGroupKey.Factory.asKey("MyGroup"));
    }

    @Override
    protected String run() throws Exception {
        long startTime = System.currentTimeMillis();

        // 执行具体的业务逻辑

        long endTime = System.currentTimeMillis();
        long executionTime = endTime - startTime;

        System.out.println("Hystrix command execution time: " + executionTime + "ms");

        return "result";
    }
}