STMs in practice: Partial rollback vs pure abort mechanisms

Anand, Anshu S and R K, Shyamasundar and Peri, Sathya (2018) STMs in practice: Partial rollback vs pure abort mechanisms. Concurrency and Computation: Practice and Experience. ISSN 1532-0626

Full text not available from this repository. (Request a copy)


In this paper, we propose an enhanced Automatic Checkpointing and Partial Rollback (CaPR++) algorithm to realize Software Transactional Memory (STM), that employs partial rollback mechanism for conflict resolution. We have comparatively evaluated the “Abort” and “Partial Rollback” mechanisms for STMs. For purposes of comparison, we have used the state‐of‐the‐art RSTM system and for the “Partial Rollback”, and we have used our earlier CaPR+ algorithm that has been enhanced for our requirements. Note that we have enriched the STAMP benchmarks with varied delayed transaction times. The results obtained demonstrate the effectiveness of the Partial Rollback mechanism over pure abort mechanisms for applications consisting of large transaction delays, with up to 1.6x performance gain for applications with large transactional delays. Our study makes the case for a hybrid system of pure aborts and partial rollbacks, which can extract the benefits of both mechanisms. Keeping in line with our study, we have proposed a hybrid implementation where some of the transactions of an application subscribe to abort mechanisms and the rest to partial rollback. Our initial implementation demonstrates various scenarios where the hybrid approach outperforms the pure abort and partial rollback approaches.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Item Type: Article
Subjects: Computer science
Divisions: Department of Computer Science & Engineering
Depositing User: Team Library
Date Deposited: 20 Mar 2018 06:02
Last Modified: 20 Mar 2018 06:02
Publisher URL:
OA policy:
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 3835 Statistics for this ePrint Item