A technique for pre-warming AWS Lambda execution environments before predictable traffic bursts, avoiding cold starts without paying for provisioned concurrency. The approach sends 100 specially crafted requests that cause the Lambda function to pause for 10 seconds each, forcing the Lambda service to spin up 100 new execution environments. A .NET C# Lambda function and a console invoker app are provided, with the warm-up string triggering a Task.Delay to hold each environment busy long enough to force new environment creation for subsequent requests.
