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
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申请号: US12042891申请日: 2008-03-05
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公开(公告)号: US08006041B2公开(公告)日: 2011-08-23
- 发明人: Shuji Yamamura , Takashi Aoki
- 申请人: Shuji Yamamura , Takashi 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
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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