2 Commits (e8d2f964499989d1cd99db556b0a3e3f293dd86b)

Author	SHA1	Message	Date
Percy Wegmann	5095efd628	prober: make histogram buckets cumulative ... Histogram buckets should include counts for all values under the bucket ceiling, not just those between the ceiling and the next lower ceiling. See https://prometheus.io/docs/tutorials/understanding_metric_types/\#histogram Updates tailscale/corp#24522 Signed-off-by: Percy Wegmann <percy@tailscale.com>	1 year ago
Percy Wegmann	00a4504cf1	cmd/derpprobe,prober: add ability to perform continuous queuing delay measurements against DERP servers ... This new type of probe sends DERP packets sized similarly to CallMeMaybe packets at a rate of 10 packets per second. It records the round-trip times in a Prometheus histogram. It also keeps track of how many packets are dropped. Packets that fail to arrive within 5 seconds are considered dropped. Updates tailscale/corp#24522 Signed-off-by: Percy Wegmann <percy@tailscale.com>	1 year ago