DAX Studio is a tool to write, execute, and analyze DAX queries in Power BI Designer, Power Pivot for Excel, and Analysis Services Tabular. Visit http://daxstudio.org to read the full documentation and download the latest release of DAX Studio.
In Power BI Desktop select the View ribbon. In the Show area of the View ribbon you can select the checkbox next to Performance Analyzer to display the Performance Analyzer pane.
Power BI Best Practices Guide
- Limit the number of visuals in dashboards and reports.
- To improve Power BI report performance, remove unnecessary interactions between visuals.
- Enable Row-Level Security (RLS)
- Use Microsoft AppSource certified custom visuals.
- Use preview feature of hierarchy slicers instead of custom visual.
Summary. Your matrix and table visuals are not slow because of Power BI! They are slow because of the bad data model, and not-well performing measures. Your solution is to properly design the data model, and performance tune the calculation.
Azure SQL Database, Azure SQL Data Warehouse, and Spark on Azure HDInsight are data sources in the Cloud. The Power BI service is also in the cloud so Power BI can connect to those data sources live, using DirectQuery.
DirectQuery means Power BI is directly connected to the data source. Anytime you see a visualization in a report; the data comes straight from a query sent to the data source.
Try these five tips to boost the speed of your database:
- Make sure all of your tables have primary keys. Running a table without a primary key is like running a four-cylinder engine with only two active pistons.
- Optimize by adding secondary indexes.
- Be like an atom and split.
- Use Compact and Repair.
- Load only what you need.
A couple of million rows shouldn't be a problem for power BI. One thing which could faster your process would be to filter the unneeded rows beforehand as well as the columns. If your database source is a SQL database, simply write the sql query with the where condition on the last years.
Here are the differences between selecting Import and DirectQuery: Import: The selected tables and columns are imported into Power BI Desktop. As you create or interact with a visualization, Power BI Desktop uses the imported data. DirectQuery: No data is imported or copied into Power BI Desktop.
Improve Power BI Performance by Optimizing DAX
- Clear the DAX cache before optimizing DAX.
- Format your code.
- Do not change BLANK values to zeros or other strings.
- Use the DISTINCT() and VALUES() functions consistently.
- Use ISBLANK() instead of =Blank() check.
- Use = 0 instead of checking for ISBLANK() || = 0.
- Use SELECTEDVALUE() instead of HASONEVALUE()
With Power BI Desktop, it is free of charge – you just download the free version and create reports. However, a Power BI Desktop limitation to be taken into account is the inability to collaborate on the insights with your colleagues within a single space.
Setting up a new capacity (Power BI Premium)
- Select Set up new capacity.
- Give your capacity a name.
- Define who the admin is for this capacity.
- Select your capacity size. Available options are dependent on how many available v-cores you have.
- Select Set up.
Incremental refresh enables very large datasets in Power BI with the following benefits: Refreshes are faster - Only data that has changed needs to be refreshed. For example, refresh only the last five days of a ten-year dataset.
To get to the Power BI admin portal, follow these steps: Sign in to Power BI using your admin account credentials. From the page header, select Settings > Admin portal.