Forum Discussion
Performance identifying Measure
VenuBollineni - How do you know if a DAX measure is performing poorly if it's not used in a report??
DAX measures will not run a query against your model unless they are used in a visual.
Once you have identified the measure that is causing a report or visual to run slowly you can use DAX Studio against your server held model through the XMLA Endpoint.
However, you can only use this if you have a Premium Capacity or PPU: https://learn.microsoft.com/en-us/power-bi/enterprise/service-premium-connect-tools
If you do not have either you can still use DAX Studio, but you will need to use it againts your model from the PBI Desktop file - it will need to have enough data in, which will mean unleashing some of your data limiting parameters if you do this.
To identify the problematic measure in DAX Studio:
- Connect to Your Model: Open DAX Studio and connect to your centralized model.
- Enable Tracing: Turn on Server Timings and Query Plan.
- Run Queries: Interact with your report or execute queries to trigger measure evaluations.
- Analyze Performance: Check Server Timings for slow or long-duration queries and identify the measure causing issues.
- Test Individual Measures: Write test queries in DAX Studio to pinpoint the problematic measure.
- Optimize: Simplify DAX logic or reduce dependencies for the identified measure.
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Kind Regards,
Poojara
Data Analyst | MSBI Developer | Power BI Consultant
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