内存页面交换文件定位优化方法

Page file optimized reallocation

在计算机内存管理系统中,如何有效地将内存中的页面交换文件存放在磁盘的适当位置上来加快内存程序的运行速度,是一个非常重要的问题。对分区盘(Zoned-Disk)技术进行了详细的研究,提出了一种对内存页面交换文件在磁盘上的定位进行优化的方法。通过理论分析和实验验证,表明该方法相对与传统的文件定位方法,不但可以提高磁盘的数据传输速率和内存中页面交换文件的读写速度,而且也加快了内存中各个任务之间的切换速度,从而在整体上提高了计算机系统的I/O性能。

The swapping process between physical page and page file in a hard disk in the virtual memory architecture is a key factor that influences the context switches of thread scheduling.Based on the analyses of Zoned-Disk technology,an algorithm of optimized swap file reallocation has been proposed.Theoretical analyses and practical experiments show it takes obvious advantages over the traditional default methods not only in the Read/Write speed of page swap file but also in the efficiency of threads switching.Hence the performance of whole system has been improved.