Does Autoscale increase model refresh parallelism?

[mmossel]

Hi,

When Autoscale adds extra v-cores, does it also increase model refresh parallelism (mrp)? E.g. two v-cores gives 10 extra mrp?

[v-tangjie-msft]

Hi @mmossel ,

When you increase the number of v-cores by autoscaling, you can improve the overall performance of your model by providing additional compute resources. The maximum number of parallelism is increased, however, it does not cause the refresh parallelism to increase proportionally.

Please refer to the following documents for more information.

Chris Webb's BI Blog: Increasing Refresh Parallelism -And Performance – In Power BI Premium (crossjo...

Increasing Refresh Parallelism in Power BI Premium – Curated SQL

Best Regards,

Neeko Tang

If this post  helps, then please consider Accept it as the solution  to help the other members find it more quickly. 

[mmossel]

@v-tangjie-msft these blog posts refer to refresh parallelism inside of Power BI Desktop, so the effect is on one model. I am not referring to this. I am referring to model refresh parallelism in the Power BI Service, i.e. how many Power BI Datasets can be refreshed at the same time. 

[v-tangjie-msft]

Hi @mmossel ,

As far as I know, there is no upper limit for parallel refreshes for Premium capacity as long as your capacity CPU does not exceed the limit.

Best Regards,

Neeko Tang

If this post  helps, then please consider Accept it as the solution  to help the other members find it more quickly. 

[mmossel · Accepted solution]

There is. You can see model refresh parallelism in the table here: What is Power BI Premium? - Power BI | Microsoft Learn

After consultation with Microsoft, it is confirmed that autoscale does NOT increase refresh model parallelism, only CPU allocation.