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DAMON
2008
Springer

Critical sections: re-emerging scalability concerns for database storage engines

8 years 5 months ago
Critical sections: re-emerging scalability concerns for database storage engines
Critical sections in database storage engines impact performance and scalability more as the number of hardware contexts per chip continues to grow exponentially. With enough threads in the system, some critical section will eventually become a bottleneck. While algorithmic changes are the only long-term solution, they tend to be complex and costly to develop. Meanwhile, changes in enforcement of critical sections require much less effort. We observe that, in practice, many critical sections are so short that enforcing them contributes a significant or even dominating fraction of their total cost and tuning them directly improves database system performance. The contribution of this paper is two-fold: we (a) make a thorough performance comparison of the various synchronization primitives in the database system developer's toolbox and highlight the best ones for practical use, and (b) show that properly enforcing critical sections can delay the need to make algorithmic changes for...
Ryan Johnson, Ippokratis Pandis, Anastasia Ailamak
Added 19 Oct 2010
Updated 19 Oct 2010
Type Conference
Year 2008
Where DAMON
Authors Ryan Johnson, Ippokratis Pandis, Anastasia Ailamaki
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