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Power BIbi_tool~5 mins

Performance Analyzer in Power BI - Step-by-Step Guide

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Introduction
Performance Analyzer helps you see how long each visual or query takes to load in your Power BI report. It solves the problem of slow reports by showing which parts need improvement.
When your report pages take too long to load and you want to find the slow visuals
When you want to compare the performance impact of different visuals on the same page
When you add new complex measures and want to check if they slow down your report
When you want to optimize report refresh times by identifying slow queries
When you want to share performance details with developers or report designers
Steps
Step 1: Open
- Power BI Desktop
Your report file is loaded and ready for analysis
Step 2: Click
- View tab on the ribbon
View tab options appear
Step 3: Select
- Performance Analyzer pane button in the View tab
Performance Analyzer pane opens on the right side of the screen
Step 4: Click
- Start Recording button in the Performance Analyzer pane
Performance Analyzer starts capturing the loading times of visuals on the current report page
Step 5: Interact
- Report page (e.g., refresh or click slicers)
Performance Analyzer records the time taken for each visual to refresh or load
Step 6: Click
- Stop Recording button in the Performance Analyzer pane
Recording stops and a list of visuals with their load times appears in the pane
Step 7: Click
- Copy Query button next to a visual in the Performance Analyzer pane
The DAX query for that visual is copied to the clipboard for further analysis
Before vs After
Before
Report page loads without any performance data shown
After
Performance Analyzer pane shows each visual's load time and query details after recording
Settings Reference
Start Recording
📍 Performance Analyzer pane
Begin or end capturing performance data for visuals
Default: Not recording
Copy Query
📍 Performance Analyzer pane next to each visual
Copy the DAX query used by the visual to clipboard
Default: Not copied
Common Mistakes
Not clicking Start Recording before interacting with the report
No performance data is captured if recording is not started
Always click Start Recording in the Performance Analyzer pane before testing visuals
Assuming all slow visuals are caused by complex queries
Some slow visuals may be slow due to large data or visual complexity, not just queries
Use Performance Analyzer data along with data model review to find root causes
Summary
Performance Analyzer helps identify slow visuals and queries in Power BI reports
You must start and stop recording to capture performance data
Copying queries lets you analyze or optimize DAX behind visuals