Invention Grant
- Patent Title: Varying a data prefetch size based upon data usage
- Patent Title (中): 基于数据使用改变数据预取大小
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Application No.: US12024163Application Date: 2008-02-01
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Publication No.: US08595443B2Publication Date: 2013-11-26
- Inventor: Ravi K. Arimilli , Gheorghe C. Cascaval , Balaram Sinharoy , William E. Speight , Lixin Zhang
- Applicant: Ravi K. Arimilli , Gheorghe C. Cascaval , Balaram Sinharoy , William E. Speight , Lixin Zhang
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Yudell Isidore Ng Russell PLLC
- Main IPC: G06F12/08
- IPC: G06F12/08
Abstract:
A method of data processing in a processor includes maintaining a usage history indicating demand usage of prefetched data retrieved into cache memory. An amount of data to prefetch by a data prefetch request is selected based upon the usage history. The data prefetch request is transmitted to a memory hierarchy to prefetch the selected amount of data into cache memory.
Public/Granted literature
- US20100293339A1 DATA PROCESSING SYSTEM, PROCESSOR AND METHOD FOR VARYING A DATA PREFETCH SIZE BASED UPON DATA USAGE Public/Granted day:2010-11-18
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