rhuss1@redhat.com has described how Metering can be used with Knative Serving in his overview document (https://docs.google.com/document/d/1yHRv2vuDtvf7RPhwDaYturRe92NlOx1TaPGDk6nfFEc/edit#) and the respective repository (https://github.com/rhuss/knative-reports/).

We need to "productize" these writeups and add them to our "official" documentation.