Maybe the thresholds feature in Grafana would work for you? Otherwise depending on the database, they have functions for drawing lines or you can do a hack lik

Maybe the thresholds feature in Grafana would work for you? Otherwise depending on the database, they have functions for drawing lines or you can do a hack like this one for Prometheus: https://play.grafana.org/d/h1lglb7ik/threshold-hack?editPanel=2&orgId=1 https://play.grafana.org/d/h1lglb7ik/threshold-hack?editPane...