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Performance, Scalability and Architecture

Andreas Grabner

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Top Stories by Andreas Grabner

DevOps is speeding towards the IT world like a freight train and the hype around it is deafening. There is no reason to be afraid of this change as it is the natural reaction to the agile movement that revolutionized development just a few years ago. By definition, DevOps is the natural alignment of IT performance to business profitability. The relevance of this has yet to be quantified but it has been suggested that the route to the CEO's chair will come from the IT leaders that successfully make the transition to a DevOps model. If this still seems foreign to you, I recommend reading up on DevOps Blog from IT Revolution, the OpsCode Blog, and check out The Phoenix Project. Despite all the talk around simple monitoring tools, breaking through the walls between Dev and Ops still poses a real challenge. This is because of a misunderstanding around Operations real purp... (more)

Continuous Innovation | @DevOpsSummit #DevOps #CD #ContinuousDelivery

Transformation to Continuous Innovation and Optimization Businesses have always had to transform to find better and more efficient ways to deliver value faster to their users, customers or consumers. The motivating factors are shorter lead times, automated and streamlined value flow, as well as reduction of overall costs and bound capital, requiring enterprises to transition to a continuous innovation and optimization model. Prominent examples can be found when studying the last decades in the automobile industry with Toyota and their way of optimizing and automating their end-to... (more)

Open Source Selenium Web Application Testing System

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 all configurable online via a Web Dashboard. Tagging Web Requests In my recent blog post – Get more out of functional web testing: How to correlate test reports with server side log information? – I discussed the ... (more)

Performance and Architecture Validation with Existing Unit Tests

Agile Development Practices have widely been adopted in R&D Organizations. A core component is Continuous Integration where code changes are continuously integrated and tested to achieve the goal of having "potential shippable code" at the end of every Sprint/Iteration. In order to verify code changes agile team members write Unit or Functional Tests that get executed against every build and every milestone. The results of these tests tell the team whether the functionality of all features is still given and that the recent code changes have not introduced a regression. Verify... (more)

Why You Can’t Compare Cross-Browser Execution Times of Selenium Tests

I am currently working on a blog where I am going to explain how to do cross-browser testing and performance analysis using dynaTrace. Before I am going to blog that How-To I want to share with you one thing that I have noticed when executing my tests in Internet Explorer 8 and Firefox 3.6. Test execution times are very different – but – this is not because one browser is slower than the other. It is because Selenium has different synchronization mechanisms in IE and FF to e.g: wait for a page to be loaded. My Environment I run a simple test on the latest 2.0 Beta build of Seleniu... (more)