发明名称 |
RETRIEVAL OF PREVIOUSLY ACCESSED DATA IN A MULTI-CORE PROCESSOR |
摘要 |
A multi-core processing apparatus may provide a cache probe and data retrieval method. The method may comprise sending a memory request from a requester to a record keeping structure. The memory request may have a memory address of a memory that stores requested data. The method may further comprise determining a last accessor of the memory address, sending a cache probe to the last accessor, determining the last accessor no longer has a copy of the line; and sending a request for the previously accessed version of the line. The request may bypass the tag-directories and obtain the requested data from memory. |
申请公布号 |
US2014215162(A1) |
申请公布日期 |
2014.07.31 |
申请号 |
US201113995283 |
申请日期 |
2011.12.28 |
申请人 |
Steeley, JR. Simon C.;Hasenplaugh William C.;Emer Joel S. |
发明人 |
Steeley, JR. Simon C.;Hasenplaugh William C.;Emer Joel S. |
分类号 |
G06F12/08 |
主分类号 |
G06F12/08 |
代理机构 |
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代理人 |
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主权项 |
1. A processor comprising:
a requester to send a memory request, the memory request having a memory address of a memory that stores requested data; a record keeping structure to receive the memory request; circuitry to determine a last accessor of the memory address; circuitry to send a cache probe to the last accessor; circuitry to determine the last accessor no longer has a copy of the line; and circuitry to send a request for previously accessed version of the line, the request bypassing the tag-directories and obtaining the requested data from memory. |
地址 |
Hudson NH US |