发明授权
US08909871B2 Data processing system and method for reducing cache pollution by write stream memory access patterns
有权
用于通过写入流存储器访问模式减少高速缓存污染的数据处理系统和方法
- 专利标题： Data processing system and method for reducing cache pollution by write stream memory access patterns
- 专利标题（中）： 用于通过写入流存储器访问模式减少高速缓存污染的数据处理系统和方法
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申请号： US11462115申请日： 2006-08-03
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公开(公告)号： US08909871B2公开(公告)日： 2014-12-09
- 发明人: Ravi K. Arimilli , Francis P. O'Connell , Hazim Shafi , Derek E. Williams , Lixin Zhang
- 申请人： Ravi K. Arimilli , Francis P. O'Connell , Hazim Shafi , Derek E. Williams , Lixin Zhang
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： Russell Ng PLLC
- 代理商 Libby Z Toub
- 主分类号： G06F12/02
- IPC分类号： G06F12/02 ; G06F12/08
摘要：
A data processing system includes a system memory and a cache hierarchy that caches contents of the system memory. According to one method of data processing, a storage modifying operation having a cacheable target real memory address is received. A determination is made whether or not the storage modifying operation has an associated bypass indication. In response to determining that the storage modifying operation has an associated bypass indication, the cache hierarchy is bypassed, and an update indicated by the storage modifying operation is performed in the system memory. In response to determining that the storage modifying operation does not have an associated bypass indication, the update indicated by the storage modifying operation is performed in the cache hierarchy.