Xiangfei Jia, Andrew Trotman, Richard O’Keefe
and Zhiyi Huang
Operating systems only provide general-purpose I/O optimization
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.