Improving mobile program performance through the use of a hybrid intermediate representation

Authors:
Chandra Krintz
Affiliations:
University of California, Santa Barbara
Venue:
PPPJ '02/IRE '02 Proceedings of the inaugural conference on the Principles and Practice of programming, 2002 and Proceedings of the second workshop on Intermediate representation engineering for virtual machines, 2002
Year:
2002

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Abstract

We present a novel transfer format for mobile programs that is a hybrid of two existing formats: bytecode and SafeTSA. Java bytecode offers a compact representation and ease of interpretation (fast-compilation); SafeTSA offers amenability to optimization. We use program profiling to guide format selection at the method-level. Methods deemed "hot" are those for which optimization should be expended and as such, are encoded using the SafeTSA format. All other methods are encoded using bytecode. Our hybrid format exploits the benefits of each constituent format to reduce compilation, execution, and transfer overhead.