Isolated Performance Domains in a Memory System

A computing system having memory components, including first memory and second memory. The computing system further includes a processing device, operatively coupled with the memory components, to: store a memory ratio in association with a context of executing instructions; execute a set of instructions in the context; allocate, for execution of the set of instructions in the context, an amount of memory, including an amount of the first memory and an amount of the second memory; and access the amount of the second memory via the amount of the first memory during the execution of the set of instructions in the context. A ratio between the amount of the first memory and an amount of the second memory allocated for the execution of the set of instructions in the context is in accordance with the memory ratio.