Merge pull request #107318 from kromerm/dataflow-1

Update concepts-data-flow-performance.md

Author: PRMerger18

articles/data-factory/concepts-data-flow-performance.md

@@ -6,7 +6,7 @@ ms.topic: conceptual
 ms.author: makromer
 ms.service: data-factory
 ms.custom: seo-lt-2019
-ms.date: 02/24/2020
+ms.date: 03/11/2020
 ---
 
 # Mapping data flows performance and tuning guide
@@ -15,6 +15,9 @@ Mapping Data Flows in Azure Data Factory provide a code-free interface to design
 
 When designing and testing Data Flows from the ADF UX, make sure to switch on debug mode to execute your data flows in real time without waiting for a cluster to warm up. For more information, see [Debug Mode](concepts-data-flow-debug-mode.md).
 
+This video shows some sample timings transforming data with data flows:
+> [!VIDEO https://www.youtube.com/watch?v=6CSbWm4lRhw]
+
 ## Monitoring data flow performance
 
 While designing mapping data flows, you can unit test each transformation by clicking on the data preview tab in the configuration panel. Once you verify your logic, test your data flow end-to-end as an activity in a pipeline. Add an Execute Data Flow activity and use the Debug button to test the performance of your data flow. To open the execution plan and performance profile of your data flow, click on the eyeglasses icon under 'actions' in the output tab of your pipeline.