netdev - Re: [v3 RFC PATCH 0/4] Implement multiqueue virtio-net

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Message-ID: <OFA5C641DD.CCB1702C-ON65257840.0024C22E-65257840.002545D9@in.ibm.com>
Date:	Wed, 23 Feb 2011 12:18:36 +0530
From:	Krishna Kumar2 <krkumar2@...ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	anthony@...emonkey.ws, arnd@...db.de, avi@...hat.com,
	davem@...emloft.net, eric.dumazet@...il.com,
	Simon Horman <horms@...ge.net.au>, kvm@...r.kernel.org,
	netdev@...r.kernel.org, rusty@...tcorp.com.au
Subject: Re: [v3 RFC PATCH 0/4] Implement multiqueue virtio-net

> "Michael S. Tsirkin" <mst@...hat.com> wrote on 02/23/2011 12:09:15 PM:

Hi Michael,

> > Yes. Michael Tsirkin had wanted to see how the MQ RX patch
> > would look like, so I was in the process of getting the two
> > working together. The patch is ready and is being tested.
> > Should I send a RFC patch at this time?
>
> Yes, please do.

Sure, will get a build/test on latest bits and send in 1-2 days.

> > The TX-only patch helped the guest TX path but didn't help
> > host->guest much (as tested using TCP_MAERTS from the guest).
> > But with the TX+RX patch, both directions are getting
> > improvements.
>
> Also, my hope is that with appropriate queue mapping,
> we might be able to do away with heuristics to detect
> single stream load that TX only code needs.

Yes, that whole stuff is removed, and the TX/RX path is
unchanged with this patch (thankfully :)

> > Remote testing is still to be done.
>
> Others might be able to help here once you post the patch.

That's great, will appreciate any help.

Thanks,

- KK

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