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October 11-15
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Friday, October 15 • 4:30pm - 5:05pm
How We Reduced Write Latency in TiKV? - Liqi Geng, PingCAP

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Serving write requests in stable and low average latency is what many distributed databases pursue. So does TiKV, a distributed transactional Key-Value database. After a detailed investigation, Liqi Geng and his team found that TiKV’s write performance might be restricted by many factors. Among all these factors, the raftstore module might be the one that causes delay the worst. In order to optimize write latency, TiKV team plans to lower tail latency, in addition to reducing the average write latency, to make sure the overall latency is consistent and low. In this talk, Liqi Geng will walk you through TiKV’s architecture and share the optimization measures he and his team have used in the raftstore module to reduce the average write latency and tail latency, such as Asynchronous IO and other optimizing trials.

Speakers
avatar for Liqi Geng

Liqi Geng

Infrastructure Engineer, PingCAP
Liqi Geng is an infrastructure engineer at PingCAP and a committer of raft-sig in TiKV community. He focuses on making TiKV more efficient, scalable, and reliable and he is passionate about distributed systems and storage systems.



Friday October 15, 2021 4:30pm - 5:05pm PDT
Concourse Hall 150 ABC + Online