Comment by rtpg
5 hours ago
There are definitely slightly annoying variants of this of "ah the program does its job in 200ms but takes 5s to shutdown timing out trying to send telemetry data". Especially annoying on CLI programs.
I have been unpleasantly surprised by several programs outright crashing when not being able to send telemetry data consistently. Though this has usually been when the connection is a bit odd and it is able to send through _some_ stuff but then crashes when it fails later.
ran into this flavor once with a different tool, not gh. our deploy job was consistently about 8s longer than it should've been, turned out a fire-and-forget telemetry POST wasn't actually fire-and-forget when the endpoint got slow. NO_PROXY plus blackholing the host fixed it, but probably the kind of thing you shouldn't have to find via flame graph.