Morty: Scaling Concurrency Control with Re-Execution
Morty: Scaling Concurrency Control with Re-Execution
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DOI：
10.1145/3552326.3567500
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发表时间：
2023-05
期刊：
影响因子：
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通讯作者：
Matthew Burke;Florian Suri-Payer;Jeffrey Helt;L. Alvisi;Natacha Crooks
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作者：
Matthew Burke;Florian Suri-Payer;Jeffrey Helt;L. Alvisi;Natacha Crooks
可串行化的系统在高争用情况下通常性能很差。在这项工作中，我们分析了这种性能限制，通过一种新的冲突窗口。通过这些窗口的透镜，我们开发了一种新的并发控制技术，利用事务重新执行，以提高吞吐量的可扩展性下的高争用。我们的系统Morty的吞吐量是最先进系统的1.7倍-96倍，延迟相似或更好。
Serializable systems often perform poorly under high contention. In this work, we analyze this performance limitation through a novel take on conflict windows. Through the lens of these windows, we develop a new concurrency control technique that leverages transaction re-execution to improve throughput scalability under high contention. Our system, Morty, achieves up to 1.7x-96x the throughput of state-of-the-art systems, with similar or better latency.