Analyzing the Cost of a Cache Miss Using Pipeline Spectroscopy
Analyzing the Cost of a Cache Miss Using Pipeline Spectroscopy
复制标题
使用管道光谱分析缓存未命中的成本
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
A. Nádas
中科院分区:
文献类型:
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作者:
T. Puzak;A. Hartstein;P. Emma;Vijayalakshmi Srinivasan;A. Nádas
We describe a new technique called Pipeline Spectroscopy that allows us to precisely measure the cost of each cache miss. The cost of a miss is displayed (graphed) as a histogram, which represents a precise readout showing a detailed visualization of the cost of each cache miss throughout all levels of the memory hierarchy. We call the graphs ‘spectrograms’ because they reveal certain signature characteristics of the processor’s memory hierarchy, the pipeline, and the miss pattern itself. We show that in a memory hierarchy with N cache levels (L1, L2, ..., LN , and