The AWS Lambda now allows new and existing functions to run on Arm-based AWS Graviton2 processors, resulting in better performance and lower costs.
- Graviton2 architecture provides physical cores, better scalability, and more cache on a per-CPU basis.
- For Golang to run on Graviton, specify the architecture to arm64 and the runtime to "provided.al2".
- You can maintain the same Lambda function for both x86 and Arm by creating aliases that point to specific function versions, and using weights to distribute traffic between the two versions.
- Use CloudWatch to monitor performance metrics and compare indicators between the two architectures.
