Activities
Seminar by Wolfgang Puffitsch (ONERA - STAE): Hard Real-Time Garbage Collection on Chip Multi-Processors
Automatic memory management, also known as garbage collection, is a suitable means to increase productivity in the development of computer programs. As it helps to avoid common errors in memory management, such as memory leaks or dangling pointers, it also helps to make programs safer. Conventional garbage collection techniques are however not suited for use in hard real-time systems. In the past few years, methods for garbage collection that are suitable for use in hard real-time systems have been developed. This talk presents techniques developed in the course of my PhD thesis to enable hard real-time garbage collection also on chip multi-processor systems.
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The talk starts with an overview of the Java Optimized Processor (JOP), which provides the platform for the prototype implementation of the garbage collector. Also, the talk gives a brief introduction to the basic principles of garbage collection. Challenges for real-time garbage collectors and the solutions developed in the scope of my thesis are discussed, with an emphasis on the root scanning phase of garbage collection and the treatment of heap fragmentation. Finally, an experimental evaluation is presented that confirms the theoretic results, which indicate that low release jitter can be achieved in multi-processor systems in the presence of garbage collection.
This talk will be given at ONERA (salle du boulon), avenue Edouard Belin, Toulouse, on June 28, 2012 at 15:00.
