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Revisiting the Existence of Self-Similar Property in SPEC CPU Workloads |
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PP: 1837-1843 |
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Author(s) |
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Qiang Zou,
Yong Li,
Yujuan Tan,
Xuesong Chen,
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Abstract |
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| This paper studies self-similarity of memory accesses in high-performance computer systems. We analyze the autocorrelation
functions of memory access intervals in SPEC CPU workloads with different time scales and present the statistical evidence
that memory accesses have self-similar behavior. For memory traces studied in our experiments, all estimated Hurst parameters are
larger than 0.5, which indicate that self-similarity seems to be a general property of memory access behaviors. In addition, a selfsimilar
model is proposed to generate memory access series and experimental results show that this model can faithfully emulate the
complex access behaviors of real memory systems. |
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