Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Reexamination Certificate
2005-12-13
2005-12-13
Moazzami, Nasser (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
C711S141000
Reexamination Certificate
active
06976128
ABSTRACT:
A system and method is provided to selectively flush data from cache memory to a main memory irrespective of the replacement algorithm that is used to manage the cache data. According to one aspect of the invention, novel “page flush” and “cache line flush” instructions are provided to flush a page and a cache line of memory data, respectively, from a cache to a main memory. In one embodiment, these instructions are included within the hardware instruction set of an Instruction Processor (IP). According to another aspect of the invention, flush operations are initiated using a background interface that interconnects the IP with its associated cache memory. A primary interface that also interconnects the IP to the cache memory is used to simultaneously issue higher-priority requests so that processor throughput is increased.
REFERENCES:
patent: 5230045 (1993-07-01), Sindhu
patent: 5278964 (1994-01-01), Mathews et al.
patent: 5845325 (1998-12-01), Loo et al.
patent: 5845326 (1998-12-01), Hirayama et al.
patent: 6088773 (2000-07-01), Kano et al.
patent: 6115791 (2000-09-01), Collins et al.
patent: 6230241 (2001-05-01), McKenney
patent: 6378047 (2002-04-01), Meyer
patent: 6381674 (2002-04-01), DeKoning et al.
patent: 6546462 (2003-04-01), Palanca et al.
patent: 6601153 (2003-07-01), Engelbrecht et al.
patent: 6631447 (2003-10-01), Morioka et al.
patent: 6658532 (2003-12-01), Horrigan et al.
patent: 6681297 (2004-01-01), Chauvel et al.
patent: 6750870 (2004-06-01), Olarig
patent: 6760817 (2004-07-01), Arimilli et al.
Andrighetti Robert H.
Englin Donald C.
Shimada Conrad S.
Williams James A.
Johnson Charles A.
McMahon Beth L.
Moazzami Nasser
Starr Mark T.
Unisys Corporation
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