发明授权
US08806148B2 Forward progress mechanism for stores in the presence of load contention in a system favoring loads by state alteration
有权
在存在负载争用的情况下，通过状态改变有利于负载的系统中的商店的前进进展机制
- 专利标题： Forward progress mechanism for stores in the presence of load contention in a system favoring loads by state alteration
- 专利标题（中）： 在存在负载争用的情况下，通过状态改变有利于负载的系统中的商店的前进进展机制
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申请号： US13679351申请日： 2012-11-16
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公开(公告)号： US08806148B2公开(公告)日： 2014-08-12
- 发明人: Guy L. Guthrie , Hien M. Le , Hugh Shen , Jeff A. Stuecheli , Derek E Williams
- 申请人： International Business Machines Corporation
- 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
- 代理商 Matt Baca
- 主分类号： G06F12/00
- IPC分类号： G06F12/00
摘要：
A multiprocessor data processing system includes a plurality of cache memories including a cache memory. The cache memory issues a read-type operation for a target cache line. While waiting for receipt of the target cache line, the cache memory monitors to detect a competing store-type operation for the target cache line. In response to receiving the target cache line, the cache memory installs the target cache line in the cache memory, and sets a coherency state of the target cache line installed in the cache memory based on whether the competing store-type operation is detected.
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