What should you do first to eliminate the impact of visual caching during Performance Analyzer evaluation?

Adding a blank page to the PBIX file is an effective strategy to eliminate the impact of visual caching during Performance Analyzer evaluation. When evaluating report performance, caching can skew results by serving previously loaded data or visuals rather than fetching fresh data for each interaction. By introducing a blank page, you ensure that the visuals on that specific page do not benefit from any cached interactions, prompting Power BI to load new data and render visuals afresh when you start running your performance tests.

This approach effectively resets the rendering context and provides a cleaner result that is not influenced by prior caching, allowing you to accurately assess the performance of your report visuals. This entails creating a neutral environment in which performance metrics can be captured without the influence of cached results, leading to more reliable analysis.

In contrast, connecting DAX Studio, reopening the PBIX file, or starting a recording may not sufficiently address the effects of visual caching on data retrieval during the Performance Analyzer evaluation, as these actions do not inherently refresh or reset the visual states that could be influenced by caching.