Custom Chrome Performance Tracks #5092
Description
We're deep in performance work and looking at how to make React/Relay work faster for us, during React Conf I noticed a slide mentioning Custom Performance tracks (see below), and specifically spotted the Relay/RelayNetwork ones. Any chance these are in the internal Meta version of Relay and could be migrated or added to the open source one? They'd be super useful! I've anticipate the Network one would need adding to the custom network code, but I'd be interested to know which bits you've found useful to track there.
