[zfs-discuss] metadata slowness

Michael Herf mbherf at gmail.com
Sun Oct 20 03:42:38 EDT 2013


Has anyone done benchmarking of metadata operations? I moved an 8-disk 
RAIDZ2 from Solaris (and added SSD cache). 

My strong impression is that metadata calls (e.g., stat calls) are quite a 
bit slower than before - possibly 3-5x slower, but that's just a guess. 

Some of this could involve a move from CIFS to Samba, but I have noticed 
slowness with rsync and large folders too, which wasn't apparent before.

Michael

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