Post: Testing XFS vs ZFS speed hashing 700k files

There's a interessant post where a user compare xfs with full clearing filesystem cache vs. zfs with nearly emtpy arc by max it to 4GB:
https://www.reddit.com/r/DataHoarder/comments/1f4ghzr/testing_xfs_vs_zfs_speed_hashing_700k_files/
If you compare xfs filesystem cache vs. arc by :
"cd /usr ; tar cf /<xfs-mount>/<dir-anywhere>/os.tar * /etc ; time cat /<xfs-mount>/<dir-anywhere>/os.tar >/dev/null" and
"cd /usr ; tar cf /<zfs-pool>/<dir-anywhere>/os.tar * /etc ; time cat...

Read more