One of my ZFS drives went bad a little while ago, and I thought by replacing it I might get additional speed; Perhaps it had been the problem all along? Doing such has certainly improved my ZFS experience, but there’s still something wrong. I have discovered something that has improved it further, though.
while true; do sync; done;
That got rid of frequent pauses, and made my ZFS partition grab data fairly fast… Faster than I can shove it down a wireless G pipe, anyway. It’s not perfect, but then again, my ZFS setup is far from ideal.