A principled approach for selecting block I/O traces

A principled approach for selecting block I/O traces
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选择块 I/O 跟踪的原则性方法

DOI:
10.1145/3538643.3539754
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发表时间:
2022
期刊:
14th ACM Workshop on Hot Topics in Storage and File Systems
影响因子:
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通讯作者:
Kim, Bryan S.
Kim, Bryan S.
中科院分区:
--
文献类型:
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作者:
Desai, Omkar;Shin, Seungmin;Lee, Eunji;Kim, Bryan S.

文献摘要

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我们介绍了IOTAP,这是一个分析和剖析块I/O轨迹的工具。IOTAP计算一组工作负载之间的(不同)相似性,并为选择跟踪子集进行基准测试设定指导原则。通过这样做,我们避免了试验性地运行所有工作负载,或者更糟糕的是,任意选择了扭曲结果的子集。我们通过将IOTAP的结果与实际SSD上的实验进行比较,证明了IOTAP的有效性,对于NVMe SSD,获得了0.92的高相关性。
We present IOTAP, a tool that analyzes and profiles block I/O traces. IOTAP computes the (dis)similarities among a set of workloads and sets a guideline for selecting a subset of traces for benchmarking. By doing so, we avoid experimentally running all workloads or, even worse, arbitrarily selecting a subset that skews the results. We demonstrate the usefulness of IOTAP by comparing its results with experiments on real SSDs, achieving a high correlation of 0.92 for an NVMe SSD.