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Comparing Microsoft Fabric Warehouse and Lakehouse Performance

Reitse Eskens busts out the stopwatch:

I just can’t seem to stop doing this, checking the limits of Microsoft Fabric. In this instalment I’ll try and find some limits on the data warehouse experience and compare them with the Lakehouse experience. The data warehouse is a bit different compared to the Lakehouse, so I’ll be digging into that one first. Then I’m going to load data into the warehouse with a copy data pipeline followed by some big queries to test performance. The Fabric Capacity App will be used to check out the capacity necessary (or used for that matter).

As usual, I’m using the F2 capacity as it’s the one that should break the easiest. It’s also the cheapest one to run tests against and, as the capacity calculation isn’t dependent on the SKU (Stock Keeping Unit), you can easily translate to find out which capacity SKU will fit the workload. Remember that your workload will differ from the one shown in this blog. These tests are a comparison between the different offerings, something you could do for yourself. These blogs are a bit of a happy place as every option will get a good chance. In your work, your skills (and those of your co-workers) will be a major driver towards an option. Even if this offers the chance to learn something new!

Reitse focuses on ingesting and transforming data and the results were quite interesting.

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