Season 2

Namaste Power BI

Episode 31

DAX Debugging & Performance Tools

⏱ 40:00

Episode Summary

Professional debugging and performance tools — Performance Analyzer for visual-level profiling, DAX Studio for advanced query analysis, and VertiPaq Analyzer for model size and compression insights.

This is Episode 31 of the free Namaste Power BI course on DevWithData — covering dax debugging & performance tools. Watch the video above, then pass the MCQ checkpoint to unlock the next episode and update your Data Readiness Index score.

Key Takeaways

→Performance Analyzer shows per-visual DAX query time, render time, and query text
→DAX Studio connects externally to run, profile, and trace DAX queries
→VertiPaq Analyzer reveals column sizes, compression ratios, and cardinality
→Use all three together: PA for surface issues → DAX Studio for deep analysis → VA for model structure

⚠ Common Interview Pitfalls

•Guessing at performance problems without running Performance Analyzer first
•Using DAX Studio without understanding storage engine vs formula engine queries
•Ignoring VertiPaq Analyzer for model size — invisible problems cause silent slowdowns

Official Reference

Deepen your understanding with official Microsoft documentation.

PL-300 Official Training Course

Microsoft's official instructor-led training for the Power BI Data Analyst certification.

https://learn.microsoft.com/en-us/training/courses/pl-300t00

Power BI Documentation

Complete reference for Power BI Desktop, Power BI Service, and Power BI Embedded.

https://learn.microsoft.com/en-us/power-bi/

Content on DevWithData is original and inspired by official Microsoft resources. The links above point directly to Microsoft Learn — always the authoritative source.

← Ep 31: PL-300 Exam Strategy

Ep 32: Interview Mindset →

Episode Checkpoint

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