HCP lets multiple threads access a namespace simultaneously. Using multiple threads can enhance performance, especially when accessing many small objects across multiple directories.
With NFS, multiple concurrent threads can write to the same object, but only if they are working against the same node. Multiple concurrent threads can read the same object on the same or different nodes.
With a single mount point, concurrent threads are always working against the same node.
HCP doesn’t limit the number of concurrent NFS threads per node but does limit the total number of outstanding requests using all protocols to 500 per node.
Note: CIFS and NFS share the same thread pool.