Advantages of java processors in cache performance and power for embedded applications

Authors:
Antonio Carlos S. Beck;Mateus B. Rutzig;Luigi Carro
Affiliations:
Instituto de Informática, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil;Instituto de Informática, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil;Instituto de Informática, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
Venue:
SAMOS'06 Proceedings of the 6th international conference on Embedded Computer Systems: architectures, Modeling, and Simulation
Year:
2006

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Abstract

Java, with its advantages as being an overspread multiplatform object oriented language, has been gaining popularity in the embedded system market over the years. Furthermore, because of its extra layer of interpretation, it is also believed that it is a slow language while being executed. However, when this execution is done directly in hardware, advantages because of its stack nature start to appear. One of these advantages concerns the memory utilization, impacting in less accesses and cache misses. In this work we analyze this impact in performance and energy consumption, comparing a Java processor with a RISC one based on a MIPS with similar characteristics.