The Fastest JVM on Greenland (Perhaps)

The Institute for Arctic Technology at the Technical University of Denmark (DTU) recently worked on a renewable energy project in Greenland. The goal of the project was to determine the impact of combining renewable wind energy with existing diesel generators in small villages. There was just one problem: DTU researchers back in Denmark needed a reliable, affordable way to analyze the data both historically and in real-time. For that solution they turned to Lagoni Engineering Ltd. — and Lagoni turned to Excelsior JET Embedded.

Arctic conditions ruled out upgrading hardware, causing Lagoni to find performance improvements within the existing platform.

“We were looking for a way to reduce the hardware requirements and cost associated with conventional Java, which powers Monatar, our in-house datalogger with a built-in Web server that provides the user interface for the researchers. We found what we needed in Excelsior JET Embedded.”

Thomas Olsen, director of Lagoni Engineering Ltd.

Monatar is a high-performance embedded energy-monitoring device for wind turbine analysis, and it is critical to the DTU researchers’ mission. Excelsior JET Embedded powered — and boosted the performance of — Monatar in the bitter cold of a Greenland winter.

In fact, our product has delivered a 45% improvement on Oracle’s JVM start-up, between 15% and 30% improvement on JVM response, and a full 60% improvement on JVM’s disk footprint size.

Footprint Chart

You can find the remaining charts and further details in the case study.

Categories: Customer Showcase, Excelsior JET, News

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Sponsored Project: SimuLab Flight Simulator

We have donated free Excelsior JET licenses to the SimuLab project, aimed at creating an open source flight simulator. They were apparently impressed by the performance of the native build:

  1. CPU peaks (highest cycle consumption): JRE 62%, JET 53%
  2. Memory: JRE 227MB, JET 133MB (highlighting mine – DL)
  3. Startup: not measured but JET outperformed the JRE BY FAR as expected.

If you are passionate about flight simulators and Java, check out SimuLab and consider contributing some of your spare time or money (does anyone in today’s world still have any of these?)

If you are already working on an interesting non-commercial Java app and feel that the use of Excelsior JET might benefit its end users, feel free to apply for a free license.

Categories: Excelsior JET

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