[ignoramous]

It may be product positioning, but Lambda really stems from AWS desire to do something about the dismal utilisation ratio of their most expensive bill item: Servers [0].

I speculate, 1min or 15mins workloads are optimum to schedule and run uncorrelated workloads. Any more, and it may diminish returns?

[0] https://youtu.be/dInADzgCI-s?t=524 (James Hamilton, 2013)

[cinquemb]

I loved using spot instances for managing scaling for a startup i worked at, saved alot of money instead of using these services they provide.

[ignoramous]

I find myself favour Serverless more while it continues to mature, and generally have fewer complaints.

Btw, you'd like AWS Batch: It is a hassle-free, zero-code way to run batch / uncritical workloads on Spots. https://aws.amazon.com/ec2/spot/use-case/batch/