页迁移系统中反向页表技术的设计与实现  

The Design and Implementation of Reverse Page Table in Page Migration System

作　　者：杜静[1] 戴华东[1] 杨学军[1] 

机构地区：[1]国防科技大学计算机学院,长沙410073

出　　处：《计算机科学》2004年第12期210-213,共4页Computer Science

基　　金：国家863服务器操作系统内核(2003AA1Z2026)

摘　　要：页迁移技术是实现CC-NUMA存储优化的一种重要策略,它动态开发了数据的局部性。页迁移策略的实现涉及到虚存系统中物理地址到虚拟地址的转换,传统做法需要遍历所有进程的虚拟地址空间,效率低、开销大。针对此问题,本文介绍了一种能够高效实现物理地址到虚拟地址转换的技术——反向页表技术,着重介绍了反向页表的设计、实现和维护方法。Page migration is an important policy to exploit memory optimization in CC-NUMA systems,and it is a way to dynamically exploit data locality. The realization of page migration policy involves translation from physical addresses to virtual addresses in virtual memory area,it needs travel through all the process address space with traditional approaches, which is inefficient and costly. Aiming at this problem, an efficient technology to realize translation from physical addresses to virtual addresses-reverse page table is introduced in this paper. Emphasis is put on the design,realization and maintenance for reverse page table

关 键 词：页表 虚拟地址 物理地址 CC-NUMA 进程 遍历 迁移技术 系统 效率 策略 

分 类 号：TP316.1[自动化与计算机技术—计算机软件与理论] TP311.5[自动化与计算机技术—计算机科学与技术]