
palaniappan p7 min
AWS RDS Performance and Caching: IOPS, Query Tuning, and Application-Layer Cache Patterns
RDS performance: gp3 IOPS, Performance Insights / Database Insights, Proxy, replicas, ElastiCache. July 2026 tuning checklist.
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RDS performance: gp3 IOPS, Performance Insights / Database Insights, Proxy, replicas, ElastiCache. July 2026 tuning checklist.

Aurora is 5× faster than MySQL — until your workload is the one where it isn't. A workload-by-workload framework for picking RDS vs Aurora, with the price-per-IOPS math and the patterns where Aurora's cost doesn't pay back.