So far, we have been provisioning throughput for each collection. This gives us more granular control on how many request units we will need per container. This option is usually better if you have a smaller number of containers and require guaranteed throughput on each container backed by SLA. Keep in mind that all physical partitions of a Cosmos DB container will equally share the number of request units available for the container.
The other option is to provision throughput at the database level. In this case, all the containers within the database will share the total pool of request units you have. This can be a more comfortable management option when you have a high number of ...
