Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Reexamination Certificate
2002-12-10
2008-12-09
Bataille, Pierre-Michel (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
C711S141000, C711S146000
Reexamination Certificate
active
07464227
ABSTRACT:
A system and method for improved cache performance is disclosed. In one embodiment, a processor with a cache having a dirty cache line subject to eviction may send the dirty cache line to an available replacement block in another processor's cache. In one embodiment, an available replacement block may contain a cache line in an invalid state. In another embodiment, an available replacement block may contain a cache line in an invalid state or in a shared state. Multiple transfers of the dirty cache line to more than one processor's cache may be inhibited using a set of accept signals and backoff signals. These accept signals may be combined to inhibit multiple processors from accepting the dirty cache line, as well as to inhibit the system memory from accepting the dirty cache line.
REFERENCES:
patent: 5708792 (1998-01-01), Hayes et al.
patent: 5765199 (1998-06-01), Chang et al.
patent: 6378048 (2002-04-01), Prudvi et al.
patent: 6678798 (2004-01-01), Kuskin et al.
patent: 6801986 (2004-10-01), Steely et al.
patent: 6898676 (2005-05-01), Van Doren et al.
patent: 6918008 (2005-07-01), Rowlands
patent: 7177983 (2007-02-01), Royer
patent: 2002/0078305 (2002-06-01), Khare et al.
patent: 0 691 613 (1996-10-01), None
Edirisooriya Samantha J.
Jamil Sujat
Miner David E.
Nguyen Hang T.
O'Bleness R. Frank
Bataille Pierre-Michel
Intel Corporation
Metzger Erik M.
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