Cold Start
/kəʊld stɑːt/
Definition
The delay when a mobile app or serverless function is launched from a completely stopped state — involves full initialisation.
Example in context
"Our Lambda had a 3-second cold start — adding provisioned concurrency keeps instances warm and reduces it to 50ms."
Related terms
Practice this term
Master Cold Start in context by working through exercises in the Mobile Development module. You'll see the term used in real engineering scenarios with multiple-choice, fill-in-the-blank, and matching drills.