CDx: a family of real-time Java benchmarks

  • Authors:

  • Tomas Kalibera;Jeff Hagelberg;Filip Pizlo;Ales Plsek;Ben Titzer;Jan Vitek

  • Affiliations:

  • Purdue University;Purdue University;Purdue University;INRIA Lille;Purdue University;Purdue University

  • Venue:
  • Proceedings of the 7th International Workshop on Java Technologies for Real-Time and Embedded Systems
  • Year:
  • 2009

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Abstract

Java is becoming a viable platform for hard real-time computing. There are production and research real-time Java VMs, as well as applications in both military and civil sector. Technological advances and increased adoption of Real-time Java contrast significantly with the lack of real-time benchmarks. The few benchmarks that exist are either low-level synthetic micro-benchmarks, or benchmarks used internally by companies, making it difficult to independently verify and repeat reported results. This paper presents the x (Collision Detector) benchmark suite, an open source application benchmark suite that targets different hard and soft real-time virtual machines. x is, at its core, a real-time benchmark with a single periodic task, which implements aircraft collision detection based on simulated radar frames. The benchmark can be configured to use different sets of real-time features and comes with a number of workloads. We describe the architecture of the benchmark and characterize the workload based on input parameters.