Studying the Behaviour of the Single Parent Rule in Real-Time Java

Abstract

Abstract. This paper addresses the issue of improving the performance of memory management for real-time Java applications, building upon the RealTime Specification for Java (RTSJ). This specification imposes strict assignment rules to or from memory areas preventing the creation of dangling pointers, and thus maintaining the pointer safety of Java. The dynamic issues that Java presents, requires for some cases ensuring the checking of these rules at run-time, which adversely affects both the performance and predictability of the RTSJ application. This paper presents an efficient algorithm for managing scoped areas which requires some modifications in the current RTSJ specification.