On supporting containment queries in relational database management systems
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Holistic twig joins: optimal XML pattern matching
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Parallel Processing XML Documents
IDEAS '02 Proceedings of the 2002 International Symposium on Database Engineering & Applications
Structural Joins: A Primitive for Efficient XML Query Pattern Matching
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
Improving Hash Join Performance through Prefetching
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
WIN: An E.cient Data Placement Strategy for Parallel XML Databases
ICPADS '05 Proceedings of the 11th International Conference on Parallel and Distributed Systems - Volume 01
Locking-aware structural join operators for XML query processing
Proceedings of the 2006 ACM SIGMOD international conference on Management of data
Cache-oblivious nested-loop joins
CIKM '06 Proceedings of the 15th ACM international conference on Information and knowledge management
Efficient Query Processing for Large XML Data in Distributed Environments
AINA '07 Proceedings of the 21st International Conference on Advanced Networking and Applications
A Static Load-Balancing Scheme for Parallel XML Parsing on Multicore CPUs
CCGRID '07 Proceedings of the Seventh IEEE International Symposium on Cluster Computing and the Grid
Parallel XML processing by work stealing
Proceedings of the 2007 workshop on Service-oriented computing performance: aspects, issues, and approaches
Fast Matching of Twig Patterns
DEXA '08 Proceedings of the 19th international conference on Database and Expert Systems Applications
Parallel Structural Join Algorithm on Shared-Memory Multi-Core Systems
WAIM '08 Proceedings of the 2008 The Ninth International Conference on Web-Age Information Management
GMX: an XML data partitioning scheme for holistic twig joins
Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services
XML data partitioning strategies to improve parallelism in parallel holistic twig joins
Proceedings of the 3rd International Conference on Ubiquitous Information Management and Communication
Parallelization of XPath queries using multi-core processors: challenges and experiences
Proceedings of the 12th International Conference on Extending Database Technology: Advances in Database Technology
Twiglist: make twig pattern matching fast
DASFAA'07 Proceedings of the 12th international conference on Database systems for advanced applications
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The advancement of multi-core processors technology has led to changing course of computing and enabled us to maximize the computing performance. In this study, we present a parallel TwigStack algorithm executed on a shared-memory multi-core system for achieving scalable query performance against large XML data. Our proposed scheme explores the following features. Firstly, we perform on-the-fly partitioning on input streams of XML nodes for subsequent parallel execution and, thereby, ensure that query solutions in a partition can be obtained by the TwigStack algorithm without being dependent on other partitions. Secondly, we propose a scheme for estimating the optimal partition size for a given system configuration by taking L2-cache size into account. Finally, we introduce a partition prefetching technique to alleviate the overheads of performing the on-the-fly partitions. The experimental results demonstrate that our proposed parallel algorithm works effectively and efficiently. The parallel speedup scales up to the number of available CPU-cores.