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2007
IEEE

Chronos: Feedback Control of a Real Database System Performance

9 years 17 days ago
Chronos: Feedback Control of a Real Database System Performance
It is challenging to process transactions in a timely fashion using fresh data, e.g., current stock prices, since database workloads may considerably vary due to dynamic data/resource contention. Further, transaction timeliness and data freshness requirements may compete for system resources. In this paper, we propose a novel feedback control model to support the desired data service delay by managing the size of the ready queue, which indicates the amount of the backlog in the database. We also propose a new self-adaptive update policy to adapt the freshness of cold data in a diļ¬€erentiated manner based on temporal data access and update patterns. Unlike most existing work on feedback control of real-time database (RTDB) performance, we actually implement and evaluate feedback control and database workload adaptation techniques in a real database testbed modeling stock trades. For performance evaluation, we undertake experiments in the testbed, which consists of thousands of client ...
Kyoung-Don Kang, Jisu Oh, Sang Hyuk Son
Added 04 Jun 2010
Updated 04 Jun 2010
Type Conference
Year 2007
Where RTSS
Authors Kyoung-Don Kang, Jisu Oh, Sang Hyuk Son
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