Performance monitoring eases maintaining mission-critical services by not only alerting you when the service goes down but also informing you when the service performance degrades. Degraded performance can cause bad user experience or it even might be foreshadowing a future downtime.
Let's say, your service responds generally in 300 milliseconds, and a higher response time requires attention. But getting notified of every single response with a response time greater than 300 milliseconds would be very noisy. Connection hiccups or momentary issues would cause pointless notifications. But if the service keeps responding late for a certain time, then most probably, there is really an issue.
You can enable performance monitoring on the gazer's settings.
There are 3 parameters that need to be set:
There are two alert source events that can be enabled for performance monitoring alerts. You can choose to be notified when a performance issue starts, ends or both.
In order to add an alert for performance monitoring issues: