Memory Management for Real-Time Java: An Efficient Solution using Hardware Support

TL;DR: A thorough analysis of the parameters influencing the performance of write barriers in memory management, together with ways of improvement are presented and the implementation of a memory management solution compliant with the RTSJ and integrating the proposed improvements is sketched.

Abstract: This paper addresses the issue of improving the performance of memory management for real-time Java applications, building upon the real-time specification for Java (RTSJ) from the Real-Time Java Expert Group. In a first step, a collecting dynamic memory solution including both a real-time garbage collector and region-based memory management, is proposed. A thorough analysis of the parameters influencing the performance of write barriers in memory management, together with ways of improvement are then presented. Finally, the implementation of a memory management solution compliant with the RTSJ and integrating the proposed improvements is sketched.