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Simplified Collision Handling for Castouts

IP.com Disclosure Number: IPCOM000117973D
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2005-Mar-31

Publishing Venue


Related People

Hoover, RD Valk, KM [+details]


Castouts (writes that shift cache lines from modified to the shared or invalid states) can collide with other operations in a number of ways. They can also encounter resource problems with the directory, and logic to handle all these possible problems can get complicated. This logic can be simplified by not updating the directory when certain resource conflicts happen.