Extracting Histogram Data from HP LoadRunner 12.01

A histogram is a statistical graph used to show the number of times data, inside a collection, falls within a particular range. In performance testing, you can use a frequency distribution histogram to illustrate the frequency and dispersion of transaction times. In this example we will report on a transaction, which is a cause for… Continue reading Extracting Histogram Data from HP LoadRunner 12.01

Creating a Running Vuser Graph in Excel

I recently encountered an obstacle when trying to import server metrics into LoadRunner Analysis for use in a report for a customer. To work around the problem, I decided to create my graphs in Excel. Easy enough. My metrics were in a .CSV file with data points for time and usage. I used the time… Continue reading Creating a Running Vuser Graph in Excel

LoadRunner / Performance Center and Continuous Integration

What is Continuous Integration (CI)? Continuous Integration is a method of software development. Separate pieces of code, written by multiple developers, is compiled with the main code base several times a day.  Ideally, the working code is unit tested before each build.  After the build, regression and performance tests are run on the new software… Continue reading LoadRunner / Performance Center and Continuous Integration

User Modeling and Script Modularization

User Modeling User modeling is a very important step when planning out load tests. There are many ways to go about creating a model, but the UCML (User Community Modeling Language) Diagram stands out as an excellent way to quickly and visually communicate the various business processes virtual users will perform during the load test.… Continue reading User Modeling and Script Modularization

Interesting Tricks using LoadRunner’s TruClient Mobile

I found some interesting tricks using LoadRunner’s TruClient Mobile protocol last month. The first part of this task involved recording the session, then working with and enhancing the recorded script to make it work according to the script’s requirements. This is where the challenge with TruClient mobile began to appear in earnest. The script, after… Continue reading Interesting Tricks using LoadRunner’s TruClient Mobile

Using Subversion for Loadrunner Projects with an Eye on Continuous Delivery

We were working on a project that required us to bring everything under version control to facilitate continuous delivery. Our team came up with a solution for the performance testing elements.  The key was to include more than just the scripts. We needed a design for everything to reproduce the test runs and store results… Continue reading Using Subversion for Loadrunner Projects with an Eye on Continuous Delivery

HP LoadRunner or HP Performance Center on a VMware Instance or a Physical Server

LoadRunner and Performance Center installations are complex test rigs with complex design considerations. First you can deploy ALM/PC platform on a VMware ESX 4.0 server. The system configurations of each virtual machine are the same as the ALM/PC Platform server system configurations. BSM Platform can also be deployed on a VMware ESX 4.0 server with… Continue reading HP LoadRunner or HP Performance Center on a VMware Instance or a Physical Server