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Date:      Wed, 05 Oct 2005 15:58:43 +0300
From:      Pertti Kosunen <pertti.kosunen@pp.nic.fi>
To:        ferdinand.goldmann@jku.at
Cc:        net@freebsd.org
Subject:   Re: dummynet, em driver, device polling issues :-((
Message-ID:  <4343CE03.7090008@pp.nic.fi>
In-Reply-To: <4343C559.5000000@jku.at>
References:  <4341089F.7010504@jku.at>	<20051003104548.GB70355@cell.sick.ru>	<4341242F.9060602@jku.at>	<20051003123210.GF70355@cell.sick.ru>	<43426EF3.3020404@jku.at>	<9CD8C672-1EF2-42FE-A61E-83DC684C893D@dragondata.com>	<43429157.90606@jku.at>	<4342987D.7000200@benswebs.com>	<20051004161217.GB43195@obiwan.tataz.chchile.org>	<1128470191.75484.TMDA@seddon.ca>	<979B163D-7078-4558-9095-DC329707A5B4@dragondata.com> <4343C559.5000000@jku.at>

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Ferdinand Goldmann wrote:
> 944mbps is a very good value, anyway. What we see in our setup are 
> throuput rates around 300mbps or below. When testing with tcpspray, 
> throughput hardly exceeded 13MB/s.

Increasing MTU should help to get better results, as long all devices in 
network support jumbo frames (at least on large files). 9k or even 16k 
might be supported.



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