Invention Grant
- Patent Title: Lateral persistence directory states
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Application No.: US17407248Application Date: 2021-08-20
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Publication No.: US11620231B2Publication Date: 2023-04-04
- Inventor: Ram Sai Manoj Bamdhamravuri , Craig R. Walters , Christian Jacobi , Timothy Bronson , Gregory William Alexander , Hieu T. Huynh , Robert J. Sonnelitter, III , Jason D. Kohl , Deanna P. D. Berger , Richard Joseph Branciforte
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Jeffrey Ingalls
- Main IPC: G06F12/08
- IPC: G06F12/08 ; G06F12/0891 ; G06F12/123 ; G06F12/0895

Abstract:
Aspects of the invention include defining one or more processor units having a plurality of caches, each processor unit comprising a processor having at least one cache, and wherein each of the one or more processor units are coupled together by an interconnect fabric, for each of the plurality of caches, arranging a plurality of cache lines into one or more congruence classes, each congruence class comprises a chronology vector, arranging each cache in the plurality of caches into a cluster of caches based on a plurality of scope domains, determining a first cache line to evict based on the chronology vector, and determining a target cache for installing the first cache line based on a scope of the first cache line and a saturation metric associated with the target cache, wherein the scope of the first cache line is determined based on lateral persistence tag bits.
Public/Granted literature
- US20230054424A1 LATERAL PERSISTENCE DIRECTORY STATES Public/Granted day:2023-02-23
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