The post mentions a cache. I think the key here would be not going to the central DB and instead going to a distributed cache. Not an unreasonable concept when I assume the vast majority will be read operations.
Wordpress is a pretty bad example though, surely you’d just CDN cache the pages!
i'd like to see a comparison against a firecracker vm and a docker container
The builds are based on Dockerfiles, but for deployment we transparently convert that to unikernels.