Comparing On-Prem To Managed Instance Performance

Jovan Popovic has an article explaining how you can compare your current on-premises SQL Server’s performance to an Azure SQL Managed Instance’s performance:

In this post you will see some recommended tools and best practices that you should apply while doing performance comparison. The recommended performance comparison process has three stages:

1. Compare the environment settings on SQL Server and Managed Instance. 
2. Create performance baseline on source SQL Server
3. Compare performance on Managed Instance with the baseline

In the following sections will be described the best practices and the recommended approaches 

This is a good bit more involved than installing some product, clicking a few buttons, and comparing numbers.