[GordonS]

I tried out Azure Container Instances a while back, and the startup times were also what killed it for me - they were all over the shop. It was 1-2 years ago, so I don't recall exactly and things may well have improved now, but I seem to recall they ranged from 1-5m.

[Yeroc]

So far what I've observed is <10s cold-start times on GCR. This is a fairly lightweight web app written using Undertow in Java so carries a JVM as overhead.