HOT CACHE LINE FAIRNESS ARBITRATION IN DISTRIBUTED MODULAR SMP SYSTEM

Embodiments of the present invention are directed to hot cache line arbitration. An example of a computer-implemented method for hot cache line arbitration includes receiving a request for exclusive access to a cache line from a requestor of a drawer in a processing system. The method further includ...

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Bibliographic Details
Main Authors Blake, Michael A, Gott, Rebecca M, Papazova, Vesselina K, Mak, Pak-Kin
Format Patent
LanguageEnglish
Published 11.10.2018
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Embodiments of the present invention are directed to hot cache line arbitration. An example of a computer-implemented method for hot cache line arbitration includes receiving a request for exclusive access to a cache line from a requestor of a drawer in a processing system. The method further includes bringing the cache line to a local cache of the drawer. The method further includes invalidating copies of the cache line in the processing system. The method further includes loading a remote fetch address register (RFAR) controller on other drawers in the processing system, wherein the RFAR comprises a local pending flag and a remote pending flag.
Bibliography:Application Number: US201715479624