Micronaut 4 application on AWS Lambda- Part 8 Measuring Lambda cold and warm starts with REST API application

📰 Dev.to · Vadym Kazulkin

Measure AWS Lambda cold and warm starts in a Micronaut 4 application via REST API

intermediate Published 27 Mar 2026
Action Steps
  1. Build a Micronaut 4 REST application and deploy it on AWS Lambda
  2. Configure AWS Lambda to output performance metrics
  3. Use REST API calls to trigger Lambda functions and measure response times
  4. Compare cold start and warm start response times to optimize performance
  5. Apply optimizations to reduce cold start times and improve overall system performance
Who Needs to Know This

Developers and DevOps engineers can benefit from understanding how to measure Lambda performance in their Micronaut applications, improving overall system efficiency and user experience.

Key Insight

💡 Measuring Lambda cold and warm starts is crucial for optimizing performance in serverless applications

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🚀 Measure AWS Lambda cold and warm starts in Micronaut 4 apps via REST API! 📊

Key Takeaways

Measure AWS Lambda cold and warm starts in a Micronaut 4 application via REST API

Full Article

In part 6, we learned how to develop a pure Micronaut REST application and deploy it on AWS Lambda....
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