发明申请
- 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
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申请号: US12042891申请日: 2008-03-05
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公开(公告)号: US20080229072A1公开(公告)日: 2008-09-18
- 发明人: Shuji Yamamura , Takashi Aoki
- 申请人: Shuji Yamamura , Takashi 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
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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