Using XPath with Loadrunner

Reg Expressions and Loadrunner

One of the critiques that can be often heard from script developers, is that Loadrunner does not support regular expressions to extract data from HTML responses. True, the substring-method offered by web_reg_save_param() does not offer too much flexibility, although it is a very easy and powerful way to extract parts of a http response. Unfortunately […]

Monitoring System resources with HP Performance Center


During test execution Loadrunner measures basic performance metrics, such as response times, transactions per second, transferred bytes, etc. However to have the proper overview, it is vital to see the impact of the test on the tested hardware and software. Hardware utilization (CPU, disk I/O, network) and software counters (entity cache statistics, software-internal metrics) are […]

Configuring target hostname in Loadrunner tests

Custom Graphs

Have more than one test-systems makes it imperative to make the target hostname parametric in the Loadrunner scripts, particularly if it is intended to run the Loadrunner script from time to time on different environments. First, create a new Additional Attribute for the target hostname in VuGen (press F4, then select Additional Attributes). Specify a […]

Using Shared Data Server (SDS) for Test Control Ramp-Up Control

Stress Testing

In this post I will explain how to use Facilita Forecast Shared Data Server (SDS) to control user ramp-up  whilst executing a  Load  Test. Two occasions come to mind where this may come in useful: You need to find a breaking point, but you would like to have fine grained control of user ramp-up. E.g. […]

Why VuGen is an old gen?

New generation programmers do not program in C. This is the sentence I have learnt on the latest Loadrunner training I was teaching. University students study C and C++ programming language optionally nowadays and when they do, they only use it for a semester. Moreover they are quickly seduced by programming languages running in managed […]