A Query, a Minute: Evaluating Performance Isolation in Cloud Databases

A Query, a Minute: Evaluating Performance Isolation in Cloud Databases
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一分钟查询:评估云数据库中的性能隔离

DOI:
10.1007/978-3-319-15350-6_11
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Wolfgang Lehner
Wolfgang Lehner
中科院分区:
--
文献类型:
--
作者:
Tim Kiefer;Hendrik Schön;Dirk Habich;Wolfgang Lehner

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几家云提供商将相关数据库作为其产品组合的一部分。然而,云计算固有的资源虚拟化和共享如何影响这些云数据库的性能和可预测性并不明显。云提供商很少或根本不保证一致的执行或与其他用户的隔离。为了评估两个商业云数据库的性能隔离能力,我们在一周内(一次查询、一分钟)进行了一系列实验,并报告了查询响应时间的变化。作为基准,我们在数据中心的一台专用服务器上运行了相同的实验。结果显示,在云中,单个异常值的速度比平均速度慢了近31倍。此外,用户还可以看到一个时间点,在该时间点之后,所有已执行查询的平均性能将提高38%。
Several cloud providers offer reltional databases as part of their portfolio. It is however not obvious how resource virtualization and sharing, which is inherent to cloud computing, influence performance and predictability of these cloud databases.Cloud providers give little to no guarantees for consistent execution or isolation from other users. To evaluate the performance isolation capabilities of two commercial cloud databases, we ran a series of experiments over the course of a week (a query, a minute) and report variations in query response times. As a baseline, we ran the same experiments on a dedicated server in our data center. The results show that in the cloud single outliers are up to 31 times slower than the average. Additionally, one can see a point in time after which the average performance of all executed queries improves by 38 %.
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影响因子: --
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