netdev - Re: [PATCH 2/2 net-next] net: move qdisc ingress filtering code where it belongs

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Message-ID: <20150510182414.GA4198@salvia>
Date:	Sun, 10 May 2015 20:24:14 +0200
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Alexei Starovoitov <ast@...mgrid.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net, jhs@...atatu.com,
	daniel@...earbox.net
Subject: Re: [PATCH 2/2 net-next] net: move qdisc ingress filtering code
 where it belongs

On Sun, May 10, 2015 at 11:05:28AM -0700, Alexei Starovoitov wrote:
> On 5/10/15 10:59 AM, Pablo Neira Ayuso wrote:
> >No, Daniel is *not* benchmarking the netif_received_core() with no
> >filtering at all.
> 
> sorry, not true. We did benchmark all combinations. Daniel posted
> his, I'll send numbers from my box as well.

Daniel said:

"The extra indirection layers however, are not necessary for calling
into ingress qdisc. pktgen calling locally into netif_receive_skb()
with a dummy u32, single CPU result on a Supermicro X10SLM-F, Xeon
E3-1240: before ~21,1 Mpps, after patch ~22,9 Mpps."

That explicitly refers to u32, hence qdisc ingress, so he did *not*
post any number of the use case I'm indicating.
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