Usually you would benchmark on difficult tasks, not the easiest one. For computers, batch IO operations are much faster than random IO and can easily saturate the network.

This benchmark uses large batch size, 64MB, to test. There is nothing new here. Most common file systems can easily do the same.

The difficult task is to read and write lots of small files. There is a term for it, LOSF. I work on SeaweedFS, https://github.com/chrislusf/seaweedfs , which is designed to handle LOSF. And of course, no problem with large files at all.