Exploiting concurrency to improve latency and throughput in a hybrid storage system Conference Paper uri icon

abstract

  • This paper considers the problem of how to improve the performance of hybrid storage system employing solid state disks and hard disk drives. We utilize both initial block allocation as well as migration to reach "Wardrop equilibrium", in which the response times of different devices equalize. We show that such a policy allows adaptive load balancing across devices of different performance. We also show that such a policy exploits parallelism in the storage system effectively to improve throughput and latency simultaneously. We implemented a prototype in Linux and evaluated it in multiple workloads and multiple configurations. The results show that the proposed approach improved both the latency of requests and the throughput significantly, and it adapted to different configurations of the system under different workloads. 2010 IEEE.

name of conference

  • 2010 IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems

published proceedings

  • 2010 IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems

author list (cited authors)

  • Wu, X., & Reddy, A.

citation count

  • 24

complete list of authors

  • Wu, Xiaojian||Reddy, AL Narasimha

publication date

  • August 2010