Tag Archives: JVM

Java, Performance

iJUG-Magazin Java aktuell – High Performance Java

Java Aktuell Cover Issue 2/2020
Java aktuell 2/2020

After our presentation at the JUG Saxony Day in 2019, we have been asked to turn the talk into an article for the iJUG-Magazin Java aktuell. The February 2020 issue just got published and features this article. So get yourself the latest Java Aktuell or, if you just want to check out the article, use this link to the PDF and enjoy. The article is in German.

The days where Java was considered a slow bytecode interpreter have ended a long time ago. JVM is using many tricks in order to execute a code efficiently and to transform and optimize a Java code on the used hardware. With some knowledge about these processes, you can avoid working against the JVM system, while achieving more speed. Even if you are not chasing every last microsecond, it is still interesting to see what methods and techniques JVM uses for a better understanding of the runtime environment.

Comments are very welcome.

Java, Performance, Testing, XLT

XLT – Garbage Collector details visualized

Today we want to give you a small preview of an upcoming XLT feature. Most of you probably know that XLT features agent statistics. These statistics help you to keep an eye on the health of the test execution engines (agents) to ensure that you do not influence the test results by providing insufficient hardware or by applying no or incorrect settings.

Most modern programming languages are virtual machine based and these machines have knobs you can turn to adjust their behavior according to your requirements. XLT runs on Java and so all the things you might have already learnt from tuning your Java-based servers apply to XLT as well. If you do not have experience in tuning your Java-based servers, you will learn a lot that can be applied to your servers and help you to increase performance.
Continue reading XLT – Garbage Collector details visualized →