Running every GPU at the edge of saturation leaves no safe operating margin.
CAPACITY ENGINEERINGAI SRE
Capacity Headroom
Headroom is intentionally unused serving capacity reserved for bursts, failures, deployments and uncertainty.
The fleet targets 70–80% peak sustained utilization so one node can fail without immediately violating TTFT SLOs.
What N+1 or percentage headroom does each critical service require?
REMEMBERHeadroom is reliability capacity you pay for on purpose.
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