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热词
    • 6. 发明授权
    • Pre-fetching of pages prior to a hard page fault sequence
    • 在硬页错误序列之前预取页面
    • US06317818B1
    • 2001-11-13
    • US09282499
    • 1999-03-30
    • Arthur ZwiegincewJames E. Walsh
    • Arthur ZwiegincewJames E. Walsh
    • G06F1200
    • G06F12/08G06F2212/401
    • Hard page fault patterns of an application program module are analyzed in order to determine the pages that will be retrieved from disk storage during a common hard page fault scenario. Copies of, or references to, the determined pages are stored in a scenario file, along with an index referred to as a page sequence. The scenario file may also include a prologue indicating events that lead to a hard page fault scenario and an epilogue that may indicate subsequent hard page fault scenarios. Execution of the application program module is monitored to detect the occurrence of a hard page fault scenario. When a hard page fault scenario is detected, a corresponding scenario file is fetched from disk storage and the determined pages, or copies thereof, are transferred into RAM. The determined pages, or copies thereof, may be placed on a stand-by list in RAM and later soft-faulted into the working set of the application program upon request by the application program module, thereby avoiding a sequence of hard page faults.
    • 分析应用程序模块的硬页错误模式,以确定在常见硬页错误情况下将从磁盘存储器检索的页面。 将确定的页面的副本或引用存储在脚本文件中,以及被称为页面序列的索引。 场景文件还可以包括指示导致硬页错误情况的事件的序言,以及可指示后续硬页错误情景的结尾语。 监控应用程序模块的执行情况,以检测硬页错误情况的发生。 当检测到硬页面故障场景时,从磁盘存储器取出相应的场景文件,并将确定的页面或其副本传送到RAM中。 确定的页面或其副本可以被放置在RAM中的备用列表上,并且随后由应用程序模块请求而被软错误地发送到应用程序的工作集合中,从而避免了一系列的硬页错误。