Luís Pina

Profiling and tuning the performance of an STM-based concurrent program

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Luís Pina and João Cachopo
In Proceedings of the Workshop on Transitioning to Multicore (TMC)
October, 2011


Over the last years, multicores have become accessible to the common developer. Writing concurrent programs that are correct and that display good performance is hard. Software Transactional Memory (STM) is a step in the direction of solving the first problem, but it does not provide tools for the programmer to understand and optimize his code's performance, thus leaving the second problem as an open issue. In this paper, we present a novel technique that informs the developer about which objects cause JVSTM transactions to conflict. Then, we describe how we used that technique together with several JVSTM conflict reduction techniques to improve the performance of a transactional application.


  title     = {Profiling and tuning the performance of an {STM}-based concurrent program},
  author    = {Pina, Lu\'{\i}s and Cachopo, Jo\~{\a}o},
  booktitle = {Proceedings of the  Workshop on Transitioning to Multicore},
  year      = {2011},
  month     = OCT,
  series    = {TMC},
  location  = {Portland, OR, USA},
  publisher = {ACM},