Improving database performance using a flash-based write cache

  • Authors:
  • Yi Ou;Theo Härder

  • Affiliations:
  • University of Kaiserslautern, Kaiserslautern, Germany;University of Kaiserslautern, Kaiserslautern, Germany

  • Venue:
  • DASFAA'12 Proceedings of the 17th international conference on Database Systems for Advanced Applications
  • Year:
  • 2012

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Abstract

The use of flash memory as a write cache for a database stored on magnetic disks has been so far largely ignored. In this paper, we explore how flash memory can be efficiently used for this purpose and how such a write cache can be implemented. We systematically study the design alternatives, algorithms, and techniques for the flash-based write cache and evaluate them using trace-driven simulations, covering the most typical database workloads.