Current representaive policies are in need of special hardware to record history page access infonnation , resu1ted in their poor generality . to overcome this deficiency , we propose an instantaneous information - based dynarnic page migration policy , which does n ' t need any support of hardware . in this policy , we use some instantaneous $ iv n information directly obtained from caches to substitute traditional history information 为了提高策略的通用性，我们设计了一种无需特殊硬件支持的基于即态访问信息的动态页迁移策略，在策略的信息收集阶段采用直接从cache中获取的即态访问信息来代替传统策略使用的历史访问信息，在此基础上形成页面动态复制或迁移的策略，从而消除了硬件开销。
