This article describes the memory configuration in SQL Server Analysis Services and Azure Analysis Services. Modifying these settings may impact performance and memory errors.  Read more

DAX Studio is the best tool to analyze the performances of DAX queries. In this webinar recorded for powerbi.tips, Marco Russo shows how to collect metrics in DAX Studio and investigate on storage engine and formula engine cost of some…  Watch now

This article describes how to optimize a slow Power BI report with a large number of card visuals, by obtaining the same graphical layout with a smaller number of visuals.  Read more

This article explains the behavior of LASTNONBLANK, LASTNONBLANKVALUE, and similar DAX functions, also providing patterns for performance optimization.  Read more

This article describes the differences between eager evaluation and strict evaluation in DAX, empowering you to choose the best evaluation type for your data models.  Read more

This article describes how blank values considered in a DAX conditional expression can affect its query plan and how to apply possible optimizations to improve performance in these cases.  Read more

I often get questions about use cases for Azure Analysis Services. So I wanted to do a quick recap of the points I commonly discuss in these conversations, and have them readily available for the next conversation… As a bonus,…  Read more

This article describes how to analyze the performance of a DAX measure based on a DISTINCTCOUNT calculation and how to evaluate possible optimizations.  Read more

In 2015 I released the first version of VertiPaq Analyzer, a tool to quickly analyze the structure and data distribution of a Tabular model that can be used with Analysis Services and Power BI.  Read more

This article describes how to import into DAX Studio the performance metrics that can be exported by the Power BI Performance Analyzer, simplifying the analysis of slower queries in a report.  Read more