Performance Considerations: AWS MySQL Showdown: RDS vs. Aurora vs. Serverless
Performance is often a primary driver when choosing a database service. RDS MySQL, Aurora, and Aurora Serverless exhibit distinct performance characteristics rooted in their underlying architectures and scaling mechanisms. Architecture Comparison RDS MySQL Operates on a traditional database architecture deployed on Amazon EC2 instances. Performance is directly tied to the selected DB instance class (vCPU, RAM) and the configured storage type (General Purpose SSD - gp2/gp3, Provisioned IOPS SSD - io1/io2). In this model, compute resources and storage I/O capabilities are tightly coupled within the provisioned instance. Scaling typically involves changing the instance size or adjusting storage parameters. Aurora Introduces a fundamental architectural shift by decoupling compute instances from a purpose-built, distributed storage layer. This storage system is log-structured, spans multiple Availability Zones (AZs), and handles tasks like redo log processing, which are traditional...