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My Load Test

• LoadRunner vs. Performance Center
  Recently a client asked me “What’s the difference between LoadRunner and Performance Center? They’re both sold by the same company, but they seem to do much the same thing.” I think he could see that I was about to launch into a half-hour lecture on the topic because he quickly added “Just give me the [...]
• Sending SNMP Traps with LoadRunner
  Imagine that you need to load test a Network Management System (NMS), which might receive hundreds of SNMP traps every second from tens of thousands of devices on the network. Clearly it is impractical to actually deploy thousands of devices in a test environment, so you need a tool to generate the SNMP traps at [...]
• Running remote Unix commands from LoadRunner
  If you need to run a Unix command on a remote server with a LoadRunner script (running on Windows), then there is a neat program called plink that you will find very useful. If you use any variety of Unix, you will probably already by using PuTTY; well plink is is distributed with PuTTY, and [...]
• Running command-line programs from LoadRunner
  Everyone should already know that you can run a command-line program from a LoadRunner script using the system() function. If you have used this, you would already know that things become a little awkward when need to capture the output of the program. The common solution is to pipe the output of the command to [...]
• Geeky Books Available for Loan
  I had always wanted to work at a company that had a library of intereresting/educational books I could borrow; so when I started at JDS Australia in late 2005, I brought in a few of my technical books in case anyone else wanted to borrow them. Gradually other people brought in books too, until there [...]
• Processing DHCP logs with AWK
  On a recent project, I needed to run a performance test where tens of thousands of network devices communicate with a DHCP server. After the test, I wanted to create a pretty graph of the number of DHCP requests hitting the server. Using a combination of AWK and Excel, I had a solution within half [...]
• Java Record-Replay with LoadRunner
  On increasingly rare occasions, you might be required to load test an application that has a Java-based client. While it’s nice for users to have an application that has a rich GUI, it will probably lead to a world of pain for you as a performance tester. Don’t immediately reach for LoadRunner’s Java Record-Replay virtual [...]
• LoadRunner Syntax Highlighting (for your blog or forum)
  I like posting LoadRunner code snippets on My Load Test and, judging by the emails and comments that I get, a lot of people find them really useful. To make my code more readable, I have added syntax highlighting that uses the same colours you see in VuGen. If you would like to download a [...]
• HP Software Universe 2010 (recap)
  I just got back from the US after presenting at HP Software Universe 2010. I will save the content of my presentation for another time, so this is a quick overview of what I saw at the Conference and some of the things I learned from the people who attended. Conference Overview HP really know [...]
• I will be presenting at ANZTB 2010
  On Tuesday March 2nd, I will be presenting on “The Non-Functional Requirements Every Project Forgets” at the ANZTB 2010 testing conference in Melbourne, Australia. Please come and say “hi”. Presentation Overview Most Test Managers, and a majority of projects, still seem to ignore important Non-Functional Requirements. As a test manager, it is often difficult to [...]