Backend & systems·Observability and operations
you put latency, traffic, errors and saturation on one dashboard and stop trying to look at ninety graphs.
Golden signals
Also calledfour golden signals, RED metrics, USE method
The four measurements that characterise almost any service: latency, traffic, errors and saturation. They are a starting point that generalises across services, not a complete picture. Their value is that a new service can be instrumented usefully in an afternoon.