https://nathanpeck.com/concurrency-compared-lambda-fargate-app-runner/
🔸 Concurrency
🔹 Scaling
Lambda
🔸
Single concurrent request per Lambda function instance, but many separate Lambda function instances🔹
Fully managed by AWS Lambda, default limit of 1000 concurrent executions. Scale out more function instances in under a second.App Runner
🔸
Multiple concurrent requests per container, enforces a configurable hard limit such as 100 concurrent reqs/container🔹
Fully managed by App Runner. Configure a concurrency limit per containerized process. Scale out more container instances in less than 1 min.Fargate
🔸
Multiple concurrent requests per container, no built-in limits on concurrency per container🔹
Managed by you. Scale out more container instances based on your desired metric: CPU, concurrency, or a custom metric. Scale out in less than 1 min.#design
