NDLI: Field level analysis for heap space optimization in embedded java environments

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Field level analysis for heap space optimization in embedded java environments

Content Provider	ACM Digital Library
Author	Irwin, Mary Janie Kandemir, Mahmut Chen, Guangyu Vijaykrishnan, N.
Abstract	Memory constraint presents one of the critical challenges for embedded software writers. While circuit-level solutions based on cramming as many bits as possible into the smallest area possible are certainly important, memory-conscious software can bring much higher benefits. Focusing on an embedded Java-based environment, this paper studies potential benefits and challenges when heap memory is managed at a field granularity instead of object. This paper discusses these benefits and challenges with the help of two field-level analysis techniques. The first of these, called the field-level lifetime analysis, takes advantage of the observation that, for a given object instance, not all the fields have the same lifetime. The field-level lifetime analysis demonstrates the potential benefits of exploiting this information. Our second analysis, referred to as the disjointness analysis, is built upon the fact that, for a given object, some fields have disjoint lifetimes, and therefore, they can potentially share the same memory space. To quantify the impact of these techniques, we performed experiments with several benchmarks, and point out the important characteristics that need to be considered by application writers.
Starting Page	131
Ending Page	142
Page Count	12
File Format	PDF
ISBN	1581139454
DOI	10.1145/1029873.1029889
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2004-10-24
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Garbage collection Java virtual machine
Content Type	Text
Resource Type	Article

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