Proving isolation properties for software transactional memory

  • Authors:
  • Annette Bieniusa;Peter Thiemann

  • Affiliations:
  • University of Freiburg, Germany;University of Freiburg, Germany

  • Venue:
  • ESOP'11/ETAPS'11 Proceedings of the 20th European conference on Programming languages and systems: part of the joint European conferences on theory and practice of software
  • Year:
  • 2011

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Abstract

An algorithm for Software Transactional Memory (STM) is correct if it guarantees a proclaimed degree of isolation between concurrently executing transactions. A correctness proof requires explicit modeling of the effects of transaction bodies and the nondeterministic scheduling of their operations. We provide a formalization of an STM algorithm that is explicit about all aspects required for a correctness proof: effects of operations, nondeterminism, and modeling rollback. We prove that this algorithm is correct by showing that it implements opacity.