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Message-ID: <20121229211938.GC4350@paralelels.com> Date: Sun, 30 Dec 2012 01:19:39 +0400 From: Andrew Vagin <avagin@...allels.com> To: Eric Dumazet <eric.dumazet@...il.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, Dec 29, 2012 at 01:12:26PM -0800, Eric Dumazet wrote: > On Sun, 2012-12-30 at 00:08 +0400, Andrew Vagin wrote: > > > Is it right, that a received window will be less, if packets are not sorted? > > Looks like a bug. > > Not really a bug. > > TCP is very sensitive to packet reorders. I wont elaborate here as > its a bit off topic. > > Try to reorders credits/debits on your bank account, I am pretty sure > you'll lose some money or even get serious troubles. > > Of course, enabling GRO on eth0 would definitely help a bit... > > (once/iff veth driver features are fixed to allow GSO packets being > forwarded without being segmented again) > Eric, thank you for the help. I need time for thinking. I will ask you, if new questions will appear. > > -- 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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