Hardware transactional memory-assisted flat combining

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United States of America

PATENT NO 12217083
APP PUB NO 20210255889A1
SERIAL NO

17308502

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Abstract

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An HTM-assisted Combining Framework (HCF) may enable multiple (combiner and non-combiner) threads to access a shared data structure concurrently using hardware transactional memory (HTM). As long as a combiner executes in a hardware transaction and ensures that the lock associated with the data structure is available, it may execute concurrently with other threads operating on the data structure. HCF may include attempting to apply operations to a concurrent data structure utilizing HTM and if the HTM attempt fails, utilizing flat combining within HTM transactions. Publication lists may be used to announce operations to be applied to a concurrent data structure. A combiner thread may select a subset of the operations in the publication list and attempt to apply the selected operations using HTM. If the thread fails in these HTM attempts, it may acquire a lock associated with the data structure and apply the selected operations without HTM.

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Patent Owner(s)

Patent OwnerAddress
ORACLE INTERNATIONAL CORPORATION500 ORACLE PARKWAY MAIL STOP 5OP7 REDWOOD SHORES CA 94065

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kogan, Alex Needham, US 70 356
Lev, Yosef New York, US 48 1308

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