I'm getting relatively high disk response time / latency.
Using zvol method (not fileIO) on single zfs 16TB HDD over 1G ethernet.
The connection speed is around 100mb/s, which is expected, but when copying steam games from local drive shows high latency jumping between 200~2000ms and mostly stay around 1500-2000ms.
I don't know if this is normal and haven't tested SSD performance.
Update: Tried coping video file and latency rests at consistent 500ms, but can it be further reduced?