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SubjectRe: [NFS] Re: [PATCH] zerocopy NFS for 2.5.36
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Hello,

> > Congestion avoidance mechanism of NFS clients might cause this
> > situation. I think the congestion window size is not enough
> > for high end machines. You can make the window be larger as a
> > test.
>
> The congestion avoidance window is supposed to adapt to the bandwidth
> that is available. Turn congestion avoidance off if you like, but my
> experience is that doing so tends to seriously degrade performance as
> the number of timeouts + resends skyrockets.

Yes, you must be right.

But I guess Andrew may use a great machine so that the transfer rate
has exeeded the maximum size of the congestion avoidance window.
Can we determin preferable maximum window size dynamically?

Thank you,
Hirokazu Takahashi.
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