The A/D bits exist entirely for the operating system's benefit. The Accessed bit tells the OS which pages have been recently used, enabling page replacement algorithms to choose pages to evict when memory runs low. The Dirty bit tells the OS which pages have been modified and must be written back to disk before eviction; clean pages can simply be discarded and re-read from disk later.
Chris BaraniukTechnology Reporter，详情可参考夫子
，更多细节参见WPS下载最新地址
Раскрыт новый фигурант в деле о похищении 9-летней девочки в СмоленскеВ Смоленске задержана сожительница мужчины, похитившего 9-летнюю девочку。safew官方版本下载对此有专业解读
Copyright © ITmedia, Inc. All Rights Reserved.