Enabling hardware transactional memory to work more efficiently with readers that can tolerate stale data

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United States of America Patent

PATENT NO 9251074
APP PUB NO 20140281268A1
SERIAL NO

14027305

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Abstract

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A technique for enabling hardware transactional memory (HTM) to work more efficiently with readers that can tolerate stale data. In an embodiment, a pre-transaction load request is received from one of the readers, the pre-transaction load request signifying that the reader can tolerate pre-transaction data. A determination is made whether the pre-transaction load request comprises data that has been designated for update by a concurrent HTM transaction. If so, a cache line containing the data is marked as pre-transaction data. The concurrent HTM transaction proceeds without aborting notwithstanding the pre-transaction load request.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McKenney, Paul E Beaverton, US 146 4613

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