I have a smb share on unraid with 1 million files in 70k directories.

Right click => properties and let Windows enumerate the files in Windows took 6 hours.

I copied this share on truenas via rsync, and the same operation took 20 minutes...

Both shares on traditional HDDs.

In the next weeks I will remove the xfs array and move to btrfs raid1 to see if it will have a massive speed improvement or not, after all i have shfs (the softraid daemon on unraid) eating 15% of cpu all the time....