By default, a container is allocated a certain amount of RAM and a certain number of CPU core shares. These default resource limits are determined by the runtime being run by the container as follows:
As an ArcGIS Notebook Server administrator, monitor the number of notebook authors working in your site and which runtime each is using. Depending on these factors, you may need to change the resource limits set for ArcGIS Notebook Server.
As an administrator, you can update the maximum CPU and memory that's available per container by changing the resources that each notebook runtime uses by default. If there are multiple users authoring notebooks concurrently, you can monitor your site's usage and adjust these settings as necessary using the ArcGIS Notebook Server Administrator Directory.