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Message-ID: <1356802828.21409.4623.camel@edumazet-glaptop> Date: Sat, 29 Dec 2012 09:40:28 -0800 From: Eric Dumazet <erdnetdev@...il.com> To: Andrew Vagin <avagin@...allels.com> Cc: netdev@...r.kernel.org, vvs@...allels.com, Michał Mirosław <mirq-linux@...e.qmqm.pl> Subject: Re: Slow speed of tcp connections in a network namespace 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. > > > > > > Do you have any ideas where is a problem? > > > > veth has absolutely no offload features > > > > It needs some care... > > > > At the very miminum, let TCP coalesce do its job by allowing SG > > > > CC Michał Mirosław <mirq-linux@...e.qmqm.pl> for insights. > > > > Please try following patch : > > Hello Eric, > > Thanks for your feedback. > > With this patch the results is a bit better (~4MB/s), but it's much less > than in the root netns. Please post your new tcpdump then ;) also post "netstat -s" from root and test ns after your wgets -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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