netdev - Re: [PATCH RFC]: new-CWV for Linux

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Date:	Mon, 2 Jun 2014 11:50:14 -0700
From:	Neal Cardwell <ncardwell@...gle.com>
To:	r.secchi@...il.com
Cc:	Yuchung Cheng <ycheng@...gle.com>, Netdev <netdev@...r.kernel.org>,
	Gorry Fairhurst <gorry@....abdn.ac.uk>,
	"Hossain, Ziaul" <ziaul.hossain@...n.ac.uk>, tom@....abdn.ac.uk
Subject: Re: [PATCH RFC]: new-CWV for Linux

On Mon, Jun 2, 2014 at 11:34 AM, Raffaello Secchi <r.secchi@...il.com> wrote:
> Hi Yuchung,
>
> We modified the newcwv patch so to be CC independent and
> comply with draft-ietf-tcpm-newcwv-06. We submit this patch to this list
> hoping that could be incorporated in mainstream kernel.
>
> We tested both with Reno and Cubic by replaying TMIX traces of Internet web
> traffic sessions over our Netem testbed. We saw clear latency improvements when
> traces presented gap-burst behaviour of at least 100 KB after the idle period.
>
> For example the latency of individual HTTP request/responses was reduced of
> about 1 sec when we used an emulated path of 4Mbps link and 100ms RTT delay.
>
> We also experimented with combining this with the Linux FQ scheduler and under
> some patterns of traffic this reduced the number of packet drops - indicating
> that this may be useful.
>
> We would be grateful if you or someone from your group could consider
> this code and give us an independent evaluation.
>
> Thanks,
>
> Raffaello
>
> Signed-off-by: Raffaello Secchi <raffaello@....abdn.ac.uk>
> Reviewed-by: Tom Jones <tom@....abdn.ac.uk>

We are interested in experimenting with this, but the patch seems to
have formatting issues, probably due to the email client corrupting
formatting.

Assuming you have this in the form of a git commit, can you please try
something like:

rm 0001-*.patch
git format-patch --subject-prefix='PATCH RFC' HEAD~1
./scripts/checkpatch.pl 0001-*.patch
git send-email --to 'David Miller <davem@...emloft.net>' --cc
'netdev@...r.kernel.org'  0001-*.patch

Thanks!

neal
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