Abstract. The optimistic nature of Transactional Memory (TM) systems can lead to the concurrent execution of transactions that are later found to conflict. Conflicts degrade scalability, and may lead to aborts that increase wasted work, and degrade performance. A promising approach to reducing conflicts at runtime is dynamically, and transparently, reordering the execution of transactions upon discovery of conflicts. This approach has been explored in Software TMs (STMs), but not in Hardware TMs (HTMs). Furth…
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