Assessing primitives performance on multi-stage execution

Sophie Kaleba 1 Clément Béra 1 Stéphane Ducasse 2
1 RMOD - Analyses and Languages Constructs for Object-Oriented Application Evolution
Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
2 RMOD - Analyses and Languages Constructs for Object-Oriented Application Evolution
LIFL - Laboratoire d'Informatique Fondamentale de Lille, Inria Lille - Nord Europe
Abstract : Virtual machines, besides the interpreter and just-in-time compiler optimization facilities, also include a set of primitive operations that the client language can use. Some of these are essential and cannot be performed in any other way. Others are optional: they can be expressed in the client language but are often implemented in the virtual machine to improve performance when the just-in-time compiler is unable to do so (start-up performance, speculative optimizations not implemented or not mature enough, etc.). In a hybrid runtime, where code is executed by an interpreter and a just-in-time compiler, the implementor can choose to implement optional primitives in the client language , in the virtual machine implementation language (typically C or C++), or on top of the just-in-time compiler back-end. This raises the question of the maintenance and performance trade-offs of the different alternatives. As a case study, we implemented the String comparison optional primitive in each case. This paper describes the different implementations , discusses the maintenance cost of each of them and evaluates for different string sizes the execution time in Cog, a Smalltalk virtual machine.
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Communication dans un congrès
ICOOOLPS 2017 - 12th Workshop on Implementation, Compilation, Optimization of Object-Oriented Languages, Programs and Systems, Jul 2018, Amsterdam, Netherlands
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Contributeur : Sophie Kaleba <>
Soumis le : samedi 15 septembre 2018 - 11:26:26
Dernière modification le : lundi 1 octobre 2018 - 15:00:21

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Sophie Kaleba, Clément Béra, Stéphane Ducasse. Assessing primitives performance on multi-stage execution. ICOOOLPS 2017 - 12th Workshop on Implementation, Compilation, Optimization of Object-Oriented Languages, Programs and Systems, Jul 2018, Amsterdam, Netherlands. 〈hal-01874946〉

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