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Forum Discussion
Rsync slow as heck for everyone else???
I'm running rsync with a unix box on the same gigabit switch and it is ridiculously slow. So severely slow that it copied 200ish MB in about 3 hours. That's pretty harsh. Any ideas? Chris Green
Someone call this problem as "delayed ACK stall", here is a very good doc about it, and you can find more by google it:
http://www.isi.edu/lsam/publications/ph ... node2.html
It is sure the delayed ACK settings in FreeBSD or BSD systems (like MACs) will cause slow performance with ReadyNAS. And it seems that can cause similar problem with other systems.
We will try our best to find a reasonable and generic solution in our system, but BSD users have to turn delayed ACK off before we reach that target. And turn that off also will give you best performance with ReadyNAS, and also might improve BSD network performance in general.
http://www.isi.edu/lsam/publications/ph ... node2.html
It is sure the delayed ACK settings in FreeBSD or BSD systems (like MACs) will cause slow performance with ReadyNAS. And it seems that can cause similar problem with other systems.
We will try our best to find a reasonable and generic solution in our system, but BSD users have to turn delayed ACK off before we reach that target. And turn that off also will give you best performance with ReadyNAS, and also might improve BSD network performance in general.
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