On the Accuracy of Memory Reference Models
On the Accuracy of Memory Reference Models
复制标题
论内存参考模型的准确性
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
B. Nelson
中科院分区：
文献类型：
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作者：
K. Grimsrud;J. Archibald;R. Frost;B. Nelson
本文提出了一种新的方法，量化和可视化的任何参考流的局部性特征。在推导出局部函数后，我们展示了局部函数的特征与常见的低级程序结构之间的对应关系。然后，我们应用该方法来确定各种合成模型所产生的参考流的局部性特征。这些特性被证明是从那些用于确定模型的参数的参考轨迹有很大的不同。我们的结论是，这些合成模型有严重的不足之处，用于评估内存层次结构的性能。
This paper presents a new method of quantifying and visualizing the locality characteristics of any reference stream. After deriving a locality function, we show the correspondence between features of the locality function and common low-level program structures. We then apply the method to determine the locality characteristics of reference streams generated by a variety of synthetic models. These characteristics are shown to be substantially different from those of the reference trace used to determine the parameters of the models. We conclude that these synthetic models have serious inadequacies for evaluating the performance of memory hierarchies.