Redis TLS Can Significantly Reduce Performance — A Look at How KeyDB Addressed This

Redis TLS Can Significantly Reduce Performance — A Look at How KeyDB Addressed This

In this tutorial, we will learn Redis TLS Can Significantly Reduce Performance — A Look at How KeyDB Addressed This.

We were extremely excited about TLS (Transport Layer Security) support which arrived in the '6.0' versions of Redis and KeyDB. TLS database connections are part of a continuing trend towards defense in depth which has been a long time in the making, first starting with google encrypting links between their datacenters in 2013.

Unfortunately with Redis, TLS came with a big hit to performance ranging from 36-61%. While security is important, making a trade-off with performance may not always be a viable compromise. We thought carefully about the TLS implementation in KeyDB to try and prevent our users from experiencing this. By taking advantage of KeyDB's multithreaded architecture we were able to maintain performance achieving nearly 1M ops/sec which was over 7X faster than the Redis TLS implementation.

For those who may not be aware, KeyDB is an open source project and compatible with Redis API, protocol and clients.

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