Book Image

Microsoft Power BI Performance Best Practices

By : Bhavik Merchant
Book Image

Microsoft Power BI Performance Best Practices

By: Bhavik Merchant

Overview of this book

This book comprehensively covers every layer of Power BI, from the report canvas to data modeling, transformations, storage, and architecture. Developers and architects working with any area of Power BI will be able to put their knowledge to work with this practical guide to design and implement at every stage of the analytics solution development process. This book is not only a unique collection of best practices and tips, but also provides you with a hands-on approach to identifying and fixing common performance issues. Complete with explanations of essential concepts and practical examples, you’ll learn about common design choices that affect performance and consume more resources and how to avoid these problems. You’ll grasp the general architectural issues and settings that broadly affect most solutions. As you progress, you’ll walk through each layer of a typical Power BI solution, learning how to ensure your designs can handle scale while not sacrificing usability. You’ll focus on the data layer and then work your way up to report design. We will also cover Power BI Premium and load testing. By the end of this Power BI book, you’ll be able to confidently maintain well-performing Power BI solutions with reduced effort and know how to use freely available tools and a systematic process to monitor and diagnose performance problems.
Table of Contents (21 chapters)
Part 1: Architecture, Bottlenecks, and Performance Targets
Part 2: Performance Analysis, Improvement, and Management
Part 3: Fetching, Transforming, and Visualizing Data
Part 4: Data Models, Calculations, and Large Datasets
Part 5: Optimizing Premium and Embedded Capacities


In this chapter, we looked focused on the visual layer of Power BI where we design the report content. We learned that there are two types of reports in Power BI. Interactive reports consist of a collection of visuals such as charts and slicers and are more commonly used. Paginated reports are based on mature SSRS technology and provide pixel-perfect reports designed for print media.

Interactive reports are comprised of visuals that execute queries to fetch data to render. Power BI is a modern JavaScript application where each visual can be thought of as a code block that executes in parallel. This means that the more visuals you have on a page, the more work the data source needs to do. Browsers do not actually execute JavaScript in parallel, since the work is all assigned to a single CPU thread. This means that the more visuals a report has, the more each visual needs to wait to get a slice of the CPU. Hence, we described how visual reduction is a good design goal because...