Spring Boot 3 application on AWS Lambda - Part 4 Measuring cold and warm starts with AWS Serverless Java Container

• AWSLambdaJavaSnapStart

  17 5 9.1 Java

In the part 2 of the series we introduced AWS Serverless Java Container and in the part 3 we demonstrated how to write AWS Lambda with AWS Serverless Java Container using Java 21 and Spring Boot 3.2. In this article of the series, we'll measure the cold and warm start time including enabling SnapStart on the Lambda function but also applying various priming techniques like priming the DynamoDB invocation and priming the whole web request. We'll use Spring Boot 3.2 sample application for our measurements, and for all Lambda functions use JAVA_TOOL_OPTIONS: "-XX:+TieredCompilation -XX:TieredStopAtLevel=1" and give them all 1024 MB memory.

• Newman

  250 6,727 7.5 JavaScript

  Newman is a command-line collection runner for Postman

  

The results of the experiment below were based on reproducing more than 100 cold and approximately 100.000 warm starts with Lambda function with 1024 MB memory setting for the duration of 1 hour. For it I used the load test tool hey, but you can use whatever tool you want, like Serverless-artillery or Postman.

• SurveyJS

  surveyjs.io featured

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• aws-lambda-web-adapter

  13 1,264 9.1 Rust

  Run web applications on AWS Lambda

  

In the next part of the series I'll make the introduction to the AWS Lambda Web Adapter and explain how our Serverless Spring Boot application on AWS can make use of it.

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