netdev - Re: [PATCH net-next] ifb: add multiqueue operation

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Date:	Wed, 08 Jul 2015 15:06:18 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jamal Hadi Salim <jhs@...atatu.com>
Cc:	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Alexei Starovoitov <ast@...mgrid.com>,
	John Fastabend <john.fastabend@...il.com>
Subject: Re: [PATCH net-next] ifb: add multiqueue operation

On Wed, 2015-07-08 at 08:29 -0400, Jamal Hadi Salim wrote:
> On 07/06/15 16:05, Eric Dumazet wrote:
> > From: Eric Dumazet <edumazet@...gle.com>
> >
> > Add multiqueue capabilities to ifb netdevice.
> >
> > This removes last bottleneck for ingress when mq qdisc can be used
> > to shard load from multiple RX queues on physical device.
> >
> 
> Looks good to me ;->
> Any perf numbers before/after the change?

It all depends on he workload.

If indeed mq can be used as qdisc on ifb as I did, we remove the ~1 Mpps
limit and can get whatever incoming NIC can provide, like 10 Mpps,
assuming 8 or 16 queues.



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