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Gateways and the CPU Cost of Power BI Dataset Refresh

Chris Webb continues experimenting:

After last week’s post on measuring Power Query CPU usage during dataset refresh, someone asked an obvious question that I should have addressed: does using a gateway change anything? After all, if you’re using a gateway to connect to an on-premises data source then all the Power Query queries transforming the data from that source will be executed on the gateway machine and not in the Power BI Service.

Let’s do a quick test to find out. 

Read on to see what Chris found out.