Real-time, unobtrusive, and efficient program execution tracing with stream caches and last stream predictors

Vladimir Uzelac, A. Milenković, M. Milenkovic, Martin Burtscher
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引用次数: 7

Abstract

This paper introduces a new hardware mechanism for capturing and compressing program execution traces unobtrusively in real-time. The proposed mechanism is based on two structures called stream cache and last stream predictor. We explore the effectiveness of a trace module based on these structures and analyze the design space. We show that our trace module, with less than 600 bytes of state, achieves a trace-port bandwidth of 0.15 bits/instruction/processor, which is over six times better than state-of-the-art commercial designs.
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使用流缓存和最后流预测器进行实时、不显眼和高效的程序执行跟踪
本文介绍了一种新的硬件机制,用于实时捕获和压缩程序执行轨迹。所提出的机制是基于两种结构:流缓存和最后流预测器。我们探讨了基于这些结构的跟踪模块的有效性,并分析了设计空间。我们展示了我们的跟踪模块,状态小于600字节,实现了0.15比特/指令/处理器的跟踪端口带宽,比最先进的商业设计好6倍以上。
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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