Per-node resource statistics (CPU usage etc.)
Currently the API allows to fetch resource stats for a whole pool, returning averages of cpu usage etc. See https://docs.microsoft.com/en-us/rest/api/batchservice/get-information-about-a-pool
It would be great if one could query those statistics per-node as well. This is especially useful if you run only a single task per node and want to see how well it utilizes the node (by parallelisation etc.)
Roy Kim commented
Resource statistics would be really helpfully for load testing and right sizing the node sizes.