We haven’t worked much on the metrics page lately, but we’ve made all its metrics (and more) available to everyone via a prometheus-compatible query interface. You can read more about it here: Feature preview: Custom metrics
To answer your specific questions:
- Status codes are a
rateover 15 seconds. So that’s the number of requests per second that returned the status code calculated over a window of 15s. You can sort of view this by clicking “View query” at the bottom right of the chart. This is also the exact query you can use in your own Grafana installation. - Response times are indeed in seconds.
Creating a good metrics interface has been a lot of work and part of the reason that we preferred offering raw access to querying it with other tools like Grafana.