netdev - Re: [PATCH 0/2] tun: add the RFS support

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Message-ID: <CAEH94Lik2Vq1su6M9_WGT8CuaB8CkyCgxMNqsdTLpyCvnWA34w@mail.gmail.com>
Date:	Tue, 14 Jan 2014 11:28:36 +0800
From:	Zhi Yong Wu <zwu.kernel@...il.com>
To:	Tom Herbert <therbert@...gle.com>
Cc:	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
Subject: Re: [PATCH 0/2] tun: add the RFS support

On Tue, Jan 14, 2014 at 12:49 AM, Tom Herbert <therbert@...gle.com> wrote:
> On Mon, Jan 13, 2014 at 5:29 AM, Zhi Yong Wu <zwu.kernel@...il.com> wrote:
>> On Wed, Jan 1, 2014 at 6:33 AM, Tom Herbert <therbert@...gle.com> wrote:
>>> Zhi,
>> HI, Tom
>>>
>>> Thanks for following up on these patches. It would still be nice to
>>> have performance numbers to show the impact. These will be helpful for
>>> the next task of integrating RFS into virtio-net.
>> I don't get why RFS need to be integrated into virtio-net since
>> virtio-net has supported mq. Can you give some clue? thanks.
>>
> In this case RFS would be the mechanism for selecting the RX queue. We
> can either use the tun approach which is to match the RX queue to the
> TX queue for a flow, or expose it as accelerated RFS to the guest.
> Fine grained control of the queue selection should have value.
Thanks for your explanation.

>
>>>
>>> Tom
>>>
>>> On Tue, Dec 31, 2013 at 10:32 AM, David Miller <davem@...emloft.net> wrote:
>>>> From: Zhi Yong Wu <zwu.kernel@...il.com>
>>>> Date: Sun, 22 Dec 2013 18:54:30 +0800
>>>>
>>>>> Since Tom Herbert's hash related patchset was modified and got merged,
>>>>> his pachset about adding support for RFS on tun flows also need to get
>>>>> adjusted accordingly. I tried to update them, and before i will start
>>>>> to do some perf tests, i hope to get one correct code base, so it's time
>>>>> to post them out now. Any constructive comments are welcome, thanks.
>>>>
>>>> Series applied to net-next, thanks.
>>
>>
>>
>> --
>> Regards,
>>
>> Zhi Yong Wu



-- 
Regards,

Zhi Yong Wu
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