Optimize Slow PowerBI DAX
Budget: $10 – $30 USD
I’m working with a fairly complex Snowflake-style data model in Power BI, and one of my key DAX measures has become a bottleneck. The objective is simple and measurable: cut the query execution time to a fraction of what it is now.
You’ll start by profiling the current measure, identifying the expensive storage-engine and formula-engine calls, then propose and implement optimizations. I’m open to a straight DAX refactor, a hybrid approach that shifts part of the logic into a SQL view, or a full rewrite in SQL if that proves faster—whichever delivers the best runtime improvement without sacrificing accuracy.
What I expect as deliverables
• The re-engineered DAX measure and/or SQL script, fully commented
• A before-and-after performance snapshot (DAX Studio traces or Power BI Performance Analyzer screenshots) that clearly shows the gains
• A concise hand-off note explaining any model changes so I can maintain them going forward
Please respond with a detailed proposal outlining the steps you’ll follow, the profiling tools you prefer (DAX Studio, VertiPaq Analyzer, SQL Server Management Studio, etc.), and an estimate of the improvement you believe is achievable.
You’ll start by profiling the current measure, identifying the expensive storage-engine and formula-engine calls, then propose and implement optimizations. I’m open to a straight DAX refactor, a hybrid approach that shifts part of the logic into a SQL view, or a full rewrite in SQL if that proves faster—whichever delivers the best runtime improvement without sacrificing accuracy.
What I expect as deliverables
• The re-engineered DAX measure and/or SQL script, fully commented
• A before-and-after performance snapshot (DAX Studio traces or Power BI Performance Analyzer screenshots) that clearly shows the gains
• A concise hand-off note explaining any model changes so I can maintain them going forward
Please respond with a detailed proposal outlining the steps you’ll follow, the profiling tools you prefer (DAX Studio, VertiPaq Analyzer, SQL Server Management Studio, etc.), and an estimate of the improvement you believe is achievable.