AWS Lambda just removed the main reason people don’t use serverless. SnapStart restores an initialized function that is snapshotted when it’s deployed. Takes care of things like random number seeds as well. https://aws.amazon.com/blogs/aws/new-accelerate-your-lambda-functions-with-lambda-snapstart/
New – Accelerate Your Lambda Functions with Lambda SnapStart | Amazon Web Services

Update (December 7, 2022) – Added additional information about pricing. Our customers tell me that they love AWS Lambda for many reasons. On the development side they appreciate the simple programming model and ease with which their functions can make use of other AWS services. On the operations side they benefit from the ability to […]

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@adrianco hope folks realize this is for java based lambda's AFAICT. right?