Invention Grant
US08478942B2 Method and apparatus for reducing processor cache pollution caused by aggressive prefetching
有权
减少由侵蚀性预取引起的处理器缓存污染的方法和装置
- Patent Title: Method and apparatus for reducing processor cache pollution caused by aggressive prefetching
- Patent Title (中): 减少由侵蚀性预取引起的处理器缓存污染的方法和装置
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Application No.: US12891027Application Date: 2010-09-27
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Publication No.: US08478942B2Publication Date: 2013-07-02
- Inventor: Patrick Conway
- Applicant: Patrick Conway
- Applicant Address: US TX Austin
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US TX Austin
- Agency: Williams, Morgan & Amerson, P.C.
- Main IPC: G06F12/00
- IPC: G06F12/00
Abstract:
A method and apparatus for controlling a first and second cache is provided. A cache entry is received in the first cache, and the entry is identified as having an untouched status. Thereafter, the status of the cache entry is updated to accessed in response to receiving a request for at least a portion of the cache entry, and the cache entry is subsequently cast out according to a preselected cache line replacement algorithm. The cast out cache entry is stored in the second cache according to the status of the cast out cache entry.
Public/Granted literature
- US20120079205A1 METHOD AND APPARATUS FOR REDUCING PROCESSOR CACHE POLLUTION CAUSED BY AGGRESSIVE PREFETCHING Public/Granted day:2012-03-29
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