[ndriscoll]

> This makes for more efficient utilization of compute resources.

No it doesn't. The rest of the monolith is just a chunk in your compiled binary sitting on disk, which is trivial in terms of resource cost. If that code is not running, it is not using any runtime resources.

Microservices will, however, greatly increase resource requirements if they lead to additional serialization/deserialization, which is relatively expensive. If you're doing video encoding, this isn't such a big deal. For web services, it is likely to be the bulk of the resource cost. This is only exacerbated in modern infrastructures where services are more and more expected to use TLS to talk to each other.