System and method for reducing shared memory write overhead...

Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories

Reexamination Certificate

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Details

C711S128000, C711S003000, C711S155000, C711S119000, C711S113000, C711S118000, C709S216000, C710S200000

Reexamination Certificate

active

07080213

ABSTRACT:
A system and method for reducing shared memory write overhead in multiprocessor system. In one embodiment, a multiprocessing system implements a method comprising storing an indication of obtained store permission corresponding to a particular address in a store buffer. The indication may be, for example, the address of a cache line for which a write permission has been obtained. Obtaining the write permission may include locking and modifying an MTAG or other coherence state entry. The method further comprises determining whether the indication of obtained store permission corresponds to an address of a write operation to be performed. In response to the indication corresponding to the address of the write operation to be performed, the write operation is performed without invoking corresponding global coherence operations.

REFERENCES:
patent: 5392433 (1995-02-01), Hammersley et al.
patent: 5749095 (1998-05-01), Hagersten
patent: 5758183 (1998-05-01), Scales
patent: 5761729 (1998-06-01), Scales
patent: 5787480 (1998-07-01), Scales et al.
patent: 5802585 (1998-09-01), Scales et al.
patent: 5933598 (1999-08-01), Scales et al.
patent: 5950228 (1999-09-01), Scales et al.
patent: 5964835 (1999-10-01), Fowler et al.
patent: 6055605 (2000-04-01), Sharma et al.
patent: 6085263 (2000-07-01), Sharma et al.
patent: 6088769 (2000-07-01), Luick et al.
patent: 6088771 (2000-07-01), Steely, Jr. et al.
patent: 6275907 (2001-08-01), Baumgartner et al.
patent: 6374285 (2002-04-01), Scales et al.
patent: 6438653 (2002-08-01), Akashi et al.
patent: 6785774 (2004-08-01), Arimilli et al.
patent: 2001/0037435 (2001-11-01), Van Doren

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