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Avoiding the streetlight effect: I/O workload analysis with SSDs in mind

Research output: Contribution to conferencePaperpeer-review

Abstract

Storage systems are designed and optimized relying on wisdom derived from analysis studies of file-system and block-level workloads. However, while SSDs are becoming a dominant building block in many storage systems, their design continues to build on knowledge derived from analysis targeted at hard disk optimization. Though still valuable, it does not cover important aspects relevant for SSD performance. In a sense, we are “searching under the streetlight”, possibly missing important opportunities for optimizing storage system design. We present the first I/O workload analysis designed with SSDs in mind. We characterize traces from four repositories and examine their 'temperature' ranges, sensitivity to page size, and 'logical locality'. Our initial results reveal nontrivial aspects that can significantly influence the design and performance of SSD-based systems.

Original languageEnglish
StatePublished - 2016
Event8th USENIX Workshop on Hot Topics in Storage and File Systems, HotStorage 2016, co-located with USENIX ATC 2016 - Denver, United States
Duration: 20 Jun 201621 Jun 2016

Conference

Conference8th USENIX Workshop on Hot Topics in Storage and File Systems, HotStorage 2016, co-located with USENIX ATC 2016
Country/TerritoryUnited States
CityDenver
Period20/06/1621/06/16

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Information Systems
  • Software

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