From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <erdnetdev@gmail.com>
Subject: Re: Slow speed of tcp connections in a network namespace
Date: Sat, 29 Dec 2012 09:40:28 -0800
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	=?UTF-8?Q?Micha=C5=82_Miros=C5=82aw?= <mirq-linux@rere.qmqm.pl>
To: Andrew Vagin <avagin@parallels.com>
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On Sat, 2012-12-29 at 18:50 +0400, Andrew Vagin wrote:
> On Sat, Dec 29, 2012 at 05:53:23AM -0800, Eric Dumazet wrote:
> > > 3.8-rc1 is used for experiments.
> > >=20
> > > Do you have any ideas where is a problem?
> >=20
> > veth has absolutely no offload features
> >=20
> > It needs some care...
> >=20
> > At the very miminum, let TCP coalesce do its job by allowing SG
> >=20
> > CC Micha=C5=82 Miros=C5=82aw <mirq-linux@rere.qmqm.pl> for insights=
=2E
> >=20
> > Please try following patch :
>=20
> Hello Eric,
>=20
> Thanks for your feedback.
>=20
> With this patch the results is a bit better (~4MB/s), but it's much l=
ess
> than in the root netns.

Please post your new tcpdump then ;)

also post "netstat -s" from root and test ns after your wgets