Which deployment option offers the least control over Mule runtime tuning?

CloudHub is the deployment option that provides the least control over Mule runtime tuning. This is primarily because CloudHub is a fully managed service offered by MuleSoft, which abstracts much of the underlying infrastructure management from the user. In this model, most of the operational aspects, including resource allocation, scaling, and performance tuning, are handled by MuleSoft itself.

Since CloudHub operates in a multi-tenant environment, users cannot directly modify the underlying runtime environment or configurations to the extent that they could in other deployment options such as on-premises or private cloud. This makes it ideal for organizations looking for simplicity and reduced operational overhead, but it also limits the ability to fine-tune performance based on specific workload requirements or environmental conditions.

In contrast, on-premises deployments or those using Runtime Fabric and Private Cloud Edition typically allow for greater customization and control over how the Mule runtime is configured and tuned, enabling organizations to optimize their resources more precisely according to their needs.