Patent attributes
A method comprises associating a plurality of locks with a data object accessed concurrently by a plurality of threads, where each lock corresponds to a respective partition of the object. The method includes using a first non-blocking transaction (such as a Hardware Transactional-Memory (HTM) transaction) to attempt to complete a programmer-specified transaction. The first non-blocking transaction may access one or more of the locks but may not actually acquire any of the locks. In response to an indication that the first non-blocking transaction failed to complete, the method may include acquiring a set of locks in another non-blocking transaction, where the set of locks corresponds to a set of partitions expected to be accessed in the programmer-specified transaction. If the set of locks is acquired, the method may include performing the memory access operations of the programmer-specified transaction, and releasing the set of locks.
