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An Oracle blog about Transactional locks

Hardware extensions to make lazy subscription safe

Dave Dice
Senior Research Scientist
Hardware extensions to make lazy subscription safe is a follow-on to our WTTM 2014 paper, Pitfalls of Lazy Subscription . We describe a number of hardware approaches to avoid the wrongful commit pathology admitted by generalized transactional lock elision using lazy subscription. Eager (early) subscription remains safe, of course.

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