发明授权
US08006041B2 Prefetch processing apparatus, prefetch processing method, storage medium storing prefetch processing program 失效
预取处理装置,预取处理方法,存储预取处理程序的存储介质

  • 专利标题: Prefetch processing apparatus, prefetch processing method, storage medium storing prefetch processing program
  • 专利标题(中): 预取处理装置,预取处理方法,存储预取处理程序的存储介质
  • 申请号: US12042891
    申请日: 2008-03-05
  • 公开(公告)号: US08006041B2
    公开(公告)日: 2011-08-23
  • 发明人: Shuji YamamuraTakashi Aoki
  • 申请人: Shuji YamamuraTakashi Aoki
  • 申请人地址: JP Kawasaki
  • 专利权人: Fujitsu Limited
  • 当前专利权人: Fujitsu Limited
  • 当前专利权人地址: JP Kawasaki
  • 代理机构: Greer, Burns & Crain, Ltd.
  • 优先权: JP2007-065482 20070314
  • 主分类号: G06F12/00
  • IPC分类号: G06F12/00
Prefetch processing apparatus, prefetch processing method, storage medium storing prefetch processing program
摘要:
A prefetch processing apparatus includes a central-processing-unit monitor unit that monitors processing states of the central processing unit in association with time elapsed from start time of executing a program. A cache-miss-data address obtaining unit obtains cache-miss-data addresses in association with the time elapsed from the start time of executing the program, and a cycle determining unit determines a cycle of time required for executing the program. An identifying unit identifies a prefetch position in a cycle in which a prefetch-target address is to be prefetched by associating the cycle determined by the cycle determining unit with the cache-miss data addresses obtained by the cache-miss-data address obtaining unit. The prefetch-target address is an address of data on which prefetch processing is to be performed.
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