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Stop 08 · Serverless & Event-Driven ArchitectureTopics · 8/9

Cold Starts & Performance Considerations

Part of the Cloud Computing Roadmap

In short

The delay when a serverless function hasn't run recently and needs to initialize before handling a request — a real performance consideration for latency-sensitive applications, with several mitigation strategies.

How to learn this

  1. 1Measure the response time difference between a 'cold' and a 'warm' function invocation.
  2. 2Learn mitigation strategies: provisioned concurrency, smaller deployment packages, and runtime choice.
  3. 3Understand why cold starts matter more for user-facing APIs than for background batch processing.

More topics at this stop

Serverless FundamentalsFunctions as a Service (Lambda, Cloud Functions)API GatewayEvent-Driven Architecture BasicsMessage Queues (SQS, Pub/Sub)Event Buses (EventBridge)Serverless Databases (DynamoDB On-Demand)When Serverless Isn't the Right Fit

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