发明授权
- 专利标题: Handling castout cache lines in a victim cache
- 专利标题(中): 在受害者缓存中处理castout缓存行
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申请号: US12336048申请日: 2008-12-16
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公开(公告)号: US08499124B2公开(公告)日: 2013-07-30
- 发明人: Guy L. Guthrie , Alvan W. Ng , Michael S. Siegel , William J. Starke , Derek E. Williams , Phillip G. Williams
- 申请人: Guy L. Guthrie , Alvan W. Ng , Michael S. Siegel , William J. Starke , Derek E. Williams , Phillip G. Williams
- 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: Yudell Isidore Ng Russell PLLC
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
A victim cache memory includes a cache array, a cache directory of contents of the cache array, and a cache controller that controls operation of the victim cache memory. The cache controller, responsive to receiving a castout command identifying a victim cache line castout from another cache memory, causes the victim cache line to be held in the cache array. If the other cache memory is a higher level cache in the cache hierarchy of the processor core, the cache controller marks the victim cache line in the cache directory so that it is less likely to be evicted by a replacement policy of the victim cache, and otherwise, marks the victim cache line in the cache directory so that it is more likely to be evicted by the replacement policy of the victim cache.
公开/授权文献
- US20100235576A1 Handling Castout Cache Lines In A Victim Cache 公开/授权日:2010-09-16
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