Control device for snoop tag
US8499125B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Apr 24, 2007 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Jan 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/123
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To prevent a decrease in performance of controlling a snoop tag. A queue is stored with REPLACE target WAY information and an index as an entry associated with a REPLACE request received from a processor, the index stored in the queue is compared with an index of a subsequent READ request, and, as a result of the comparison, a process based on the index-coincident READ request is executed with respect to the snoop tag corresponding to a content of a cache memory of the processor. Further, the REPLACE target WAY information of the READ request is replaced with the WAY information in the index-coincident entry within the queue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.