Loadrunner中vusers进程和线程分析

最新推荐文章于 2025-03-03 18:02:10 发布

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最新推荐文章于 2025-03-03 18:02:10 发布 · 1.7k 阅读

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本文探讨了LoadRunner中Vusers的运行方式，包括作为进程和线程的区别。线程安全协议可以在同一进程中并发多个Vusers，减少系统资源消耗；而非线程安全协议则需要多个进程，增加系统开销。实验表明，多线程在同一进程中运行时，内存占用更少。无论使用进程还是线程，只要Vusers数量相同且不影响本地硬件速度，对服务器的压力也是相同的。

今天来说说ＬＲ里的组和用户的问题。　　前几天看到一个帖子问：一个组里１０个用户和１０个组每个组一个用户有什么区别？　　我们先看一下ＬＲ的官方帮助： Multithreading Vusers support multithreadenvironments. The primary advantage of a multithread environment isthe ability to run more Vusers per load generator. Only threadsafeprotocols should be run as threads. (not applicable to MercuryBusiness Availability Center) Note: The following protocols are notthreadsafe: Sybase-Ctlib, Sybase-Dblib, Informix, Tuxedo, andPeopleSoft-Tuxedo. o To enable multithreading, click Run Vuser as athread. o To disable multithreading and run each Vuser as aseparate process, click Run Vuser as a process. The Controller andTuning Console use a driver program (such as mdrv.exe orr3vuser.exe) to run your Vusers. If you run each Vuser as aprocess, then the same driver program is launched (and loaded) intothe memory again and again for every instance of the Vuser. Loadingthe same driver program into memory uses up large amounts of