[server] Investigate server event loop lag

[geropl]

We see an accumulating node.js event loop lag increase:
This is bad, because it is a min. (!!!) static addition to every API call.

(Source: Grafana)

[geropl]

/schedule

[roboquat]

@geropl: Cannot schedule issue - issue does not belong to a team. Use /team to specify one.

In response to this:

/schedule

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[geropl]

/schedule

[roboquat]

@geropl: Issue scheduled in the meta team (WIP: 0)

In response to this:

/schedule

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[geropl]

/assign