How Programming Languages and Paradigms Affect Performance and Energy in Multithreaded Applications

2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) Pub Date : 2016-11-01 DOI:10.1109/SBESC.2016.019

Guilherme Magalhaes, A. L. Sartor, A. Lorenzon, P. Navaux, A. C. S. Beck

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引用次数: 8

Abstract

Considering that multithreaded applications may be implemented using several programming languages and paradigms, in this work we show how they influence performance, energy consumption and energy-delay product (EDP). For that, we evaluate a subset of the NAS Parallel Benchmark, implemented in both procedural (C) and object-oriented programming languages (C++ and Java). We also investigate the overhead of Virtual Machines (VM) and the improvement that the Just-In-Time (JIT) compiler may provide. We show that the procedural language has better scalability than object-oriented ones, i.e., the improvements in performance, EDP, and energy savings are better in C than in C++ and Java as the number of threads increases; and that C can be up to 76 times faster than Java, even with the JIT mechanism enabled. We also demonstrate that the Java JIT effectiveness may vary according to the benchmark (1.16 and 23.97 times in performance and 1.19 to 19.85 times in energy consumption compared to the VM without JIT); and when it reaches good optimization levels, it can be up to 23% faster, consuming 42% less energy, and having an EDP 58% lower than C++.

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编程语言和范式如何影响多线程应用程序的性能和能量

考虑到多线程应用程序可以使用多种编程语言和范式来实现，在这项工作中，我们展示了它们如何影响性能、能耗和能量延迟产品(EDP)。为此，我们评估了NAS并行基准的一个子集，它用过程(C)和面向对象编程语言(c++和Java)实现。我们还研究了虚拟机(VM)的开销以及即时(JIT)编译器可能提供的改进。我们表明，过程语言比面向对象语言具有更好的可伸缩性，即，随着线程数量的增加，C语言在性能、EDP和节能方面的改进优于c++和Java;即使启用了JIT机制，C也可以比Java快76倍。我们还演示了Java JIT的有效性可能会根据基准而变化(与没有JIT的VM相比，性能是1.16和23.97倍，能耗是1.19到19.85倍);当它达到良好的优化水平时，它可以比c++快23%，消耗42%的能量，并且EDP比c++低58%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC)

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