[CM] Event Stream: Benchmarking

[vadimkibana]

We should make sure that the Event Stream does not negatively impact Kibana performance. The main concern are the read events, as other CRUD events have much smaller volume.

• We could either performa benchmarking for our read event ingestion.
• Or, remove the problem altogether:
  • Do not track read events, at least, in the initial release.
  • Higher buffer for those high-frequence events. For example, buffer all read events for a minute, and send a _bulk write request only once a minute.

[elasticmachine]

Pinging @elastic/appex-sharedux (Team:SharedUX)