A few weeks ago, we stumbled upon an interesting problem during a code refactoring. After changing the data type of an attribute from List<Long> to List<Double>, we noticed some severe performance issues. Our application [...]

"Measuring Tape" by Jamiesrabbits is licensed under CC BY 2.0 Why benchmarks? When writing code, you are confronted with countless small decisions all the time. “Should I use a HashMap or a ConcurrentHashMap?” “Maybe [...]

Standing on top of a mountain peak feels majestic. Just like handling your application's peak load without any performance issues. Motivation Application performance is a subject which is relevant at all times of the [...]

In recent years, cloud computing has become an integral part of the IT landscape. Many enterprises rely on services from the cloud, for example because they don’t want to buy and maintain hardware by [...]

One major trend in IT has been the adoption of DevOps and continuous delivery principles. Many businesses have introduced continuous integration systems, trying to improve software quality and push out features in increasingly shorter [...]