What is On-Call Burden?
The human cost of on-call: how much after-hours interruption and load engineers carry.
Definition
On-call burden measures the load that being on call places on engineers — the volume of pages, how many land after hours or overnight, and how that weight is distributed across a team. High burden is a leading indicator of burnout and attrition, not just an operations metric.
How it’s measured
Derive it from incident and alert data: pages per on-call rotation, the share outside working hours, time spent responding, and how evenly load is spread across people. Concentration on a few engineers is itself a risk signal.
What good looks like
Healthy on-call is infrequent and fairly shared, with few after-hours pages and no single person absorbing most of the load. Frequent overnight pages or a heavily skewed distribution are warning signs to act on.
Why it matters
Reliability work is often invisible until someone quits. Quantifying on-call burden lets leaders protect their people, justify reliability investment, and catch unsustainable patterns before they become retention problems.
Related terms
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