Improving Java performance using dynamic method migration on FPGAs
by Emanuele Lattanzi, Aman Gayasen, Mahmut Kandemir, N. Vijaykrishnan, Luca Benini, Alessandro Bogliolo
International Journal of Embedded Systems (IJES), Vol. 1, No. 3/4, 2005

Abstract: With the diffusion of Java in advanced multimedia mobile devices, there is a growing need for speeding up the execution of Java bytecode beyond the limits of traditional interpreters and just-in-time compilers. In this area, Java coprocessors are viewed as a promising technology, which marries the flexibility of a general-purpose microprocessor to run legacy code and lightweight Java methods, with the high performance of a specialised execution engine on speed-critical bytecode. This work proposes and analyses a microprocessor with FPGA coprocessor architecture with efficient shared-memory communication support. Furthermore, we describe a complete run-time environment that supports dynamic migration of Java methods to the coprocessor, and we quantitatively analyse speedups achievable under a number of system configurations using an accurate complete-system simulator.

Online publication date: Mon, 05-Jun-2006

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