Percona Server for MySQL 8.0 comes with enterprise-grade total data encryption features. However, there is always the question of how much overhead — or performance penalty — comes with the data decryption. As we saw in my networking performance post, SSL under high concurrency might be problematic. Is this the case for data decryption?
To measure any overhead, I will start with a simplified read-only workload where data gets decrypted during read IO.
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