发明申请
US20080229072A1 PREFETCH PROCESSING APPARATUS, PREFETCH PROCESSING METHOD, STORAGE MEDIUM STORING PREFETCH PROCESSING PROGRAM 失效
预处理处理设备,预处理处理方法,存储介质存储预处理程序

  • 专利标题: PREFETCH PROCESSING APPARATUS, PREFETCH PROCESSING METHOD, STORAGE MEDIUM STORING PREFETCH PROCESSING PROGRAM
  • 专利标题(中): 预处理处理设备,预处理处理方法,存储介质存储预处理程序
  • 申请号: US12042891
    申请日: 2008-03-05
  • 公开(公告)号: US20080229072A1
    公开(公告)日: 2008-09-18
  • 发明人: Shuji YamamuraTakashi Aoki
  • 申请人: Shuji YamamuraTakashi Aoki
  • 申请人地址: JP Kawasaki-shi
  • 专利权人: FUJITSU LIMITED
  • 当前专利权人: FUJITSU LIMITED
  • 当前专利权人地址: JP Kawasaki-shi
  • 优先权: JP2007-065482 20070314
  • 主分类号: G06F9/312
  • IPC分类号: G06F9/312
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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