如何正确编写多线程测试程序

I'm trying to write a stress test program to bash our web server. I'm trying to use threads to simulate multiple people hitting the server. However, the problem I'm running into is using 1 thread works 99.9% of the time. 2 threads seem to work 10-20% of the time and anything more seems to fail all the time.

我正在尝试编写一个压力测试程序来打击我们的Web服务器。我正在尝试使用线程来模拟多人点击服务器。但是,我遇到的问题是使用1个线程99.9%的时间工作。 2个线程似乎在10-20%的时间内工作,而且任何事情似乎总是失败。

Here's a snippet of my code running, trying to generate threads for testing:

这是我的代码片段运行,尝试生成用于测试的线程:

    public static final MAX = 1; // (or 2, or 100 while testing)
    <snip>
    <snip>

    String newParams = "{ bunch, of, test, parameters }";
    Callable<String> call1;
    ExecutorService pool = Executors.newFixedThreadPool(10);
    Future<String> f1;

    for (int i = 0; i < MAX; i++) {
    //      newParams = newParams + slight changes each iteration for each thread;
        call1 = new HttpPostClass.HttpPost(url, newParams);
        f1 = pool.submit(call1);
    }
    pool.shutdown();

I don't know if it's because I'm re-using the same Callable/Future objects in the loop or if this is caused by my own ignorance/inexperience of multi-threaded programming that's causing this issue.

我不知道是不是因为我在循环中重复使用相同的Callable / Future对象,或者这是由于我自己的无线/缺乏多线程编程经验导致了这个问题。

Thanks in advance for any help you guys can give me.

提前感谢你们给我的任何帮助。

1 个解决方案

#1

If you want to load test a web-server, look at the simple but powerful ab: http://httpd.apache.org/docs/2.2/programs/ab.html

如果您想加载测试Web服务器,请查看简单但功能强大的ab:http://httpd.apache.org/docs/2.2/programs/ab.html