Application-Specific Disk I/O Optimisation for a Search Engine

Authors:
Xiangfei Jia;Andrew Trotman;Richard O'Keefe;Zhiyi Huang
Affiliations:
-;-;-;-
Venue:
PDCAT '08 Proceedings of the 2008 Ninth International Conference on Parallel and Distributed Computing, Applications and Technologies
Year:
2008

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Abstract

Operating systems only provide general-purpose I/O optimisation since they have to service various types of applications. However, application level I/O optimisation can achieve better performance since an application has a better knowledge of how to optimise disk I/O for the application. In this paper we provide a solution for application-specific I/O for optimising a search engine. It shows a 28% improvement when compared to the general-purpose I/O optimisation of Linux. Our result also shows a 11% improvement when the Linux I/O optimisation is bypassed.