T. Harter, Chris Dragga, Michael Vaughn, A. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau
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A file is not a file: understanding the I/O behavior of Apple desktop applications
We analyze the I/O behavior of iBench, a new collection of productivity and multimedia application workloads. Our analysis reveals a number of differences between iBench and typical file-system workload studies, including the complex organization of modern files, the lack of pure sequential access, the influence of underlying frameworks on I/O patterns, the widespread use of file synchronization and atomic operations, and the prevalence of threads. Our results have strong ramifications for the design of next generation local and cloud-based storage systems.
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