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SubjectRe: XTP for 2.6.25
One host(sender) is 2.6.25, but the other(receiver) is 2.6.18.
I will evaluate again after I upgrade it to 2.6.25.

Thanks

On Fri, Apr 25, 2008 at 5:23 PM, Ilpo Järvinen
<ilpo.jarvinen@helsinki.fi> wrote:
> On Fri, 25 Apr 2008, Shigeo N wrote:
>
> > case2) random delay
> >
> > In this case, add a fixed amount of delay + 10% random delay by
> > command, "tc change dev eth0 root netem delay 100ms 10ms 25%".
> >
> > Here is the result.
> >
> > fixed delay UDP/TCP/XTP throghput
> > ---------------------------------------
> > 10ms 88/80/92 Mbps
> > 30ms 88/51/91 Mbps
> > 50ms 88/41/89 Mbps
> > 70ms 88/28/80 Mbps
> > 100ms 88/19/66 Mbps
> >
> > TCP's perfomance looks very poor when delay is long and variable.
>
> Where these results with 2.6.25 as well? ...John Heffner just couple of
> days ago fixed reordering related problem in TCP (in case that netem
> parametrization causes reordering), the fix is not even in 2.6.24.y, I
> think...
>
> --
> i.
>
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