I/O Bottleneck Detection and Tuning: Connecting the Dots using Interactive Log Analysis

Jean Luca Bez,Houjun Tang,Bing Xie,David Williams-Young,Rob Latham,Rob Ross,Sarp Oral,Suren Byna

2021 IEEE/ACM Sixth International Parallel Data Systems Workshop (PDSW)（2021）

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摘要

Using parallel file systems efficiently is a tricky problem due to inter-dependencies among multiple layers of I/O software, including high-level I/O libraries (HDF5, netCDF, etc.), MPI-IO, POSIX, and file systems (GPFS, Lustre, etc.). Profiling tools such as Darshan collect traces to help understand the I/O performance behavior. However, there are significant gaps in analyzing the collected trace...

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关键词

File systems,Data visualization,Software,Libraries,Data systems,Performance analysis,Kernel

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