Search

With the prevalent application of multi-core CPUs, software practitioners are facing the challenge of developing high quality multi-threaded programs. Applying concurrency design patterns is one of the best practices in multi-core software engineering. We comprehensively surveyed 28 concurrency design patterns, and provided a problem-oriented guide that navigates software developers towards the "right" pattern(s) with minimal search/reading effort. The guide also illustrates the relationship between concurrency design patterns and the quality attributes they address. Additionally, further investigation was conducted on how these concurrency design patterns implement quality attributes tactics. We present a mapping between surveyed concurrency design patterns and the tactics for two important quality attributes: performance and modifiability. The results of these studies provide an insight into concurrency design patterns for software developers who are seeking appropriate or improved solutions to multi-threaded software development issues. [ABSTRACT FROM AUTHOR]

Multi-core CPUs are now common in modern computers. To get access to effectively an unlimited supply of compute resources, software programs that have been highly optimized to use a single CPU need to be converted where possible to use concurrency. We have initiated our concurrency software research for performance enhancement on a large-scale system with high throughput and low latency transactions. In this paper, we report our experience, experiments, and results in various aspects of concurrency design and programming, including multi-threaded prototypes, static and dynamic concurrency analysis, future techniques and trends, concurrency experiments, and concurrency design patterns. Based on the concurrency experiments, we achieved at least 80 percent overall performance increases as measured by transaction throughput. As a result, capital expenditures for large scale deployments can be significantly reduced. [ABSTRACT FROM AUTHOR]