Research and Analysis on Algorithm of Prefetching in Linux
Tao Zhang · Computer Technology and Development · 2009
Linux is a multitask,timesharing,general open source operating system which is being applied for many servers of business and enterprises more and more.In order to improve system's performance,Linux introduces prefetching technology which can load data what application will accesss in future into cache so that applications can reduce their waiting time for I/O.However,system's loads vary more and more,so that prefetching algorithms face to more and more chanllenges.Firstly make an analysis for the source code about prefetching algorithm in Linux-2.6.29-rc2,to analyse and understand the architectures and internal mechanisms of prefetching algorithm,then put forward some improved methods which have much important significances on improving system's performance and spreading system's ranges.