IEEE Transactions on Knowledge and Data Engineering
IEEE Transactions on Knowledge and Data Engineering (TKDE) is an archival journal published monthly designed to inform researchers, developers, managers, strategic planners, users, and others interested in state-of-the-art and state-of-the-practice activities in the knowledge and data engineering area. Read the full scope of TKDE
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From the October 2016 issue
Exploiting Single-Threaded Model in Multi-Core In-Memory Systems
By Chang Yao, Divyakant Agrawal, Gang Chen, Qian Lin, Beng Chin Ooi, Weng-Fai Wong, and Meihui Zhang
The widely adopted single-threaded OLTP model assigns a single thread to each static partition of the database for processing transactions in a partition. This simplifies concurrency control while retaining parallelism. However, it suffers performance loss arising from skewed workloads as well as transactions that span multiple partitions. In this paper, we present a dynamic single-threaded in-memory OLTP system, called LADS, that extends the simplicity of the single-threaded model. The key innovation in LADS is the separation of dependency resolution and execution into two non-overlapping phases for batches of transactions. After the first phase of dependency resolution, the record actions of the transactions are partitioned and ordered. Each independent partition is then executed sequentially by a single thread, avoiding the need for locking. By careful mapping of the tasks to be performed to threads, LADS is able to achieve a high degree of balanced parallelism. We evaluate LADS against H-Store, a partition-based database; DORA, a data-oriented transaction processing system; and SILO, a multi-core in-memory OLTP engine. The experimental study shows that LADS achieves up to 20x higher throughput than existing systems and exhibits better robustness with various workloads.
Editorials and Announcements
- We are pleased to announce that Xuemin Lin, a Scientia Professor in the School of Computer Science and Engineering at the University of New South Wales, Australia, has been named the new Editor-in-Chief of the IEEE Transactions on Knowledge and Data Engineering starting in 2017.
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- TKDE celebrates its 25th Anniversary. Editor-in-Chief Jian Pei says, "We are celebrating the 25th Anniversary of TKDE. Since its first issue in March 1989, TKDE has published 2,981 articles, and another 220 articles in the early access portal. With 898 submissions and 79 accepted articles in 2012, TKDE is now the premier journal in the broad and general fields of data management, data mining, and knowledge engineering. We thank all the authors, reviewers, and readers for their continuing support to TKDE. As always, we are eager to hear your ideas and suggestions, and will do our best to meet your expectations. With all your passions, contributions, and supports, TKDE is embracing the new era of big data and big data analytics. Happy birthday to TKDE!"
- EIC Editorial (October 2016)
- In Memoriam: Chittoor V. Ramamoorthy, PhD 1926-2016 (June 2016)
- State of the Journal (January 2016)
- Editorial (August 2015)
- State of the Journal Editorial (January 2015)
- Editorial: State of the Transactions (January 2014)
- Editorial (August 2013)
- New EIC Editorial (February 2013)
- Outgoing EIC Editorial (February 2013)
- State of the Journal (February 2012)
- EIC Editorial (January 2011)
- Special Section on the International Conference on Data Engineering (February 2016)
- Special Section on the International Conference on Data Engineering (July 2015)
- Special Section on the International Conference on Data Engineering (June 2014)
- Special Section on the 27th International Conference on Data Engineering (ICDE 2011)(Oct 2012)
- Special Section on Keyword Search on Structured Data (Dec 2011)
- Cloud Data Management (Sept 2011)
- Special Section on the 26th International Conference on Data Engineering (Aug 2011)
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