COMPUTER SYSTEM AND METHOD OF MAINTAINING CONSISTENCE OF MEMORY IN A NON-BLOCKING STREAM QUEUE OF BUS ACCESS REQUESTS

COMPUTER SYSTEM AND METHOD OF MAINTAINING CONSISTENCE OF MEMORY IN A NON-BLOCKING STREAM QUEUE OF BUS ACCESS REQUESTS

A computer system, and a method performed by it, having a mechanism for ensuring consistency of data among various level(s) of caching in a multi-level hierarchical memory system. The cache consistency mechanism includes an external bus request queue which and associated mechanism, which cooperate t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BRAYTON JAMES M, SARANGDHAR NITIN V, HINTON GLENN J, RHODEHAMEL MICHAEL W
Format: Patent
Sprache:eng ; pol
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A computer system, and a method performed by it, having a mechanism for ensuring consistency of data among various level(s) of caching in a multi-level hierarchical memory system. The cache consistency mechanism includes an external bus request queue which and associated mechanism, which cooperate to monitor and control the issuance of data requests, such as read requests and write requests, onto an external bus. The computer system includes one or more CPUs each having this consistency mechanism.