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Design, implementation and evaluation of adaptive recompilation with on-stack replacement

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2 Author(s)
Fink, S.J. ; IBM T. J. Watson Res. Center, Yorktown Heights, NY, USA ; Feng Qian

Modern virtual machines often maintain multiple compiled versions of a method. An on-stack replacement (OSR) mechanism enables a virtual machine to transfer execution between compiled versions, even while a method runs. Relying on this mechanism, the system can exploit powerful techniques to reduce compile time and code space, dynamically de-optimize code, and invalidate speculative optimizations. The paper presents a new, simple, mostly compiler-independent mechanism to transfer execution into compiled code. Additionally, we present enhancements to an analytic model for recompilation to exploit OSR for more aggressive optimization. We have implemented these techniques in Jikes RVM and present a comprehensive evaluation, including a study of fully automatic, online, profile-driven deferred compilation.

Published in:

Code Generation and Optimization, 2003. CGO 2003. International Symposium on

Date of Conference:

23-26 March 2003