The key points of the text are that modern cloud database services like ClickHouse Cloud can utilize computer-computer separation, which separates compute resources for specific workloads, users, and business functions to optimize database performance and resource management. This approach reduces the risk of interference between different types of database operations. The introduction of a new concept called "warehouses" in ClickHouse Cloud allows multiple services to be grouped together and provides flexibility in managing resources. Weights are applied to each warehouse to enable the user to choose how much weight they want to assign to each warehouse. The warehouses can also have different settings, such as the number of nodes and node size, which can be adjusted independently for each service. Additionally, users can create separate read-only services that do not perform background maintenance tasks, reducing the impact on performance. However, there are some limitations to consider when using this feature, such as the fact that the first service in a warehouse cannot be idled or stopped. Overall, computer-computer separation and warehouses provide a powerful way to manage resources and improve database performance in ClickHouse Cloud.