From: David Miller <davem@davemloft.net>
To: fbl@redhat.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net] veth: add vlan features
Date: Fri, 19 Jul 2013 17:37:43 -0700 (PDT) [thread overview]
Message-ID: <20130719.173743.1638667044880555527.davem@davemloft.net> (raw)
In-Reply-To: <1374174911-6435-1-git-send-email-fbl@redhat.com>
From: Flavio Leitner <fbl@redhat.com>
Date: Thu, 18 Jul 2013 16:15:11 -0300
> The veth device doesn't provide the vlan features,
> so TSO for example is disabled and that causes
> performance issues when using tagged traffic.
>
> The test topology looks like this:
>
> br0 br1
> / \ / \
> vnet veth0.10 ----- veth1.10 vnet
> VM VM
>
> The netperf results with current veth driver:
> MIGRATED TCP STREAM TEST from 192.168.1.1 ()
> port 0 AF_INET to 192.168.1.2 () port 0 AF_INET
> Recv Send Send
> Socket Socket Message Elapsed
> Size Size Size Time Throughput
> bytes bytes bytes secs. 10^6bits/sec
>
> 87380 16384 16384 10.01 2210.22
>
> Now after applying the proposed patch:
> MIGRATED TCP STREAM TEST from 192.168.1.1 ()
> port 0 AF_INET to 192.168.1.2 () port 0 AF_INET
> Recv Send Send
> Socket Socket Message Elapsed
> Size Size Size Time Throughput
> bytes bytes bytes secs. 10^6bits/sec
>
> 87380 16384 16384 10.00 13067.47
>
> Signed-off-by: Flavio Leitner <fbl@redhat.com>
Applied.
prev parent reply other threads:[~2013-07-20 0:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-18 19:15 [PATCH net] veth: add vlan features Flavio Leitner
2013-07-20 0:37 ` David Miller [this message]
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