AWS Lambda Managed Instances with Java 25 and AWS SAM – Part 5 Lambda function initial performance measurements

In part 1 of the series, we explained the ideas behind AWS Lambda Managed Instances and introduced our sample application. In part 2 , we explained what a Lambda Capacity Provider is and how to create it using AWS SAM. Part 3 was about how to create Lambda functions and attach them to a capacity provider. In part 4 , we talked about monitoring, currently unsupported features, current challenges, and pricing of LMI. In this article, we'll measure the initial Lambda function performance. Lambda function initial performance measurements Let's first start by measuring the performance of the GetProductById function, whose implementation we can find here . We first implemented this Lambda function in a not very optimal way. More about its optimization potential in the next article. Let's send a first request to this Lambda function, for example, via API Gateway GET HTTP request to products/1 (assuming we've already created a product with id 1). Let's then look into the CloudWatch metrics of