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

Overview of Performance Analyzer

Performance Analyzer lets you record user actions and break down report behavior by each report visual, including DAX and DQ queries. The tool provides durations for phases of a report visual's internal operations, in milliseconds. The following screenshot shows how the Performance analyzer pane displays statistics for a single-page refresh operation that's initiated from the tool itself.

Take note of the action that's been captured and the duration breakdowns provided. The Copy query functionality is especially useful when you're debugging performance related to DAX and data model design. It allows you to extract a DAX query or the external Direct query command that the visual generated. These queries can be analyzed in other tools, which we will cover in Chapter 6, Third-Party Utilities:

Figure 5.1 – Performance analyzer results with an expanded visual

This chapter will focus on practical examples...