Most production monitoring systems I have seen have one major problem: There are too many JVM’s, CLRs and Hosts to monitor. One of our bigger Customers (and a Fortune 500 Company) mastered the challenge by concentrating on what really matters: The Applications! Ensure Health The following dashboard is taken directly from the production environment of [...]
Keith A. Marshall, Lead Developer at Insight North America, talks about how he identifies certain transactions by injecting specific HTTP Headers “on-the-fly” using Fiddler. Performance and Scalability testing are two important components in our software development and applications deployment lifecycle. The more information that is correlated from the testing the better the picture we get. [...]
This Thursday, March 24th at 10am CET, I am happy to host a Webinar on Performance in agile environments. Especially eCommerce shops have embraced dev-ops on top of agile development to bring new features to their customers faster. Together with one of our german parnters, PiazzaBlu, we will show the challenges that agile development and dev-ops pose to [...]
With more than 3 million downloads, Selenium is the world’s most popular functional testing framework. It allows web developers and QA professionals to automatically test how an application functions on multiple browsers, such as Firefox, Internet Explorer and Chrome and across operating systems, such as different versions of Windows and Mac OS. The FREE dynaTrace [...]
Microsoft released the next version of it’s Development IDE Visual Studio 2010. In fact – VS2010 is more than just an IDE to write applications. It also became a testing solution with the built-in Web-, Load- and functional testing capabilities. In a recent blog post and in a recent MSDN Webinar I demonstrated the capabilities [...]
I had an interesting conversation with our Test Automation team lead Stefan – who Andi interviewed for our “Eating our own Dog Food ” article – on his experiences with the willingness of developers to write performance tests. I asked a provocative question: do developers really want to write them in the first place? First [...]
I sat together with Stefan Frandl, Test Automation Lead in dynaTrace’s R&D Lab in Linz, Austria to discuss how dynaTrace does Continuous APM in Development. Obviously dynaTrace takes performance very serious as we preach to our clients that Continuous Application Performance Management is a critical component across the Application Lifecycle. The earlier in the Lifecycle [...]
I’ve recently been working with several clients to analyze their web site performance with the dynaTrace AJAX Edition. Based on our findings their JavaScript code, usage of 3rd party frameworks, use of AJAX, embedded objects and caching strategies have been changed over multiple iterations. After each iteration it is good practice to verify if the [...]
On a recent project I had to call Java REST services from a .NET Client. Several problems came up – ranging from authentication to hidden performance issues. I want to share my lessons learned and encourage you to share your own opinions and experiences on this topic. The Context: REST to automate analysis processes in [...]
Selenium is a free Web Application Testing System. It gained lots of popularity since it is available. It’s integration to FireFox – which allows instant record/replay as well as the scripting option - makes it a great tool for functional web testing. BrowserMob on the other side leverages Selenium by providing an automated load-testing environment for Selenium scripts [...]
