> Sequential writing problem with process throttling - there's an open
> bug for it for quite a while. Try to lower txg_time to 1s - should
> help a little bit.

Yeah, my post was mostly to emphasize that on commodity hardware raidz2 does 
not even come close to being a CPU bottleneck. It wasn't a poke at the 
streaming performance. Very interesting to hear there's a bug open for it 
though.

> Can you also post iostat -xnz 1 while you're doing dd?
> and zpool status

This was FreeBSD, but I can provide iostat -x if you still want it for some 
reason. 

-- 
/ Peter Schuller

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