Patent ID: 7707463
Filing Date: 2010-04-27
Classification: G06F

Abstract:
1. A method for implementing a directory organization to selectively optimize performance or reliability in a computer system comprising: providing a user selected control register receiving a user selected operational mode input of a performance mode or a reliability mode; providing control logic receiving a select control signal from said user selected control register; said select control signal responsive to said user selected operational mode input of the performance mode or the reliability mode; responsive to said select control signal for said user selected operational mode of the reliability mode, said control logic providing directory rows having a predefined number of directory bits used for error correction and detection; and responsive to said select control signal for said user selected operational mode of the performance mode, said control logic providing directory rows having fewer than said predefined number of directory bits used for error correction and detection, and providing reclaimed directory bits not used for error correction and detection, said reclaimed directory bits used for an additional associativity class.