class Prometheus::Gauge

• Prometheus::Gauge
• Prometheus::Metric
• Reference
• Object

Overview

A Gauge is a metric that represents a single numerical value that can arbitrarily go up and down.

Use a Gauge for metrics that can increase and decrease, such as:

• Current memory usage
• Number of items in a queue
• Number of active connections

Example:

gauge = Gauge.new("cpu_usage", "CPU usage percentage")
gauge.set(45.2)  # Set to specific value
gauge.inc(5)     # Increase by 5
gauge.dec(3)     # Decrease by 3

Defined in:

Instance Method Summary

• #collect : Array(Sample)
• #dec(value : Number = 1)
• #inc(value : Number = 1)
• #set(value : Number)
• #type : String
• #value : Float64

Instance Method Detail