Re: eth_type_trans(): Re: [Bug #11308] tbench regression on eachkernel release from 2.6.22 -> 2.6.28

[David Miller]

From: Eric Dumazet <dada1@xxxxxxxxxxxxx>
Date: Tue, 18 Nov 2008 06:35:46 +0100

> David Miller a écrit :
> > From: Ingo Molnar <mingo@xxxxxxx>
> > Date: Mon, 17 Nov 2008 22:26:57 +0100
> > 
> >> eth->h_proto access.
> > Yes, this is the first time a packet is touched on receive.
> 
> Well, not exactly, since we do a 
> 
> if (is_multicast_ether_addr(eth->h_dest)) {
> ...}
> 
> and one of the
> 	compare_ether_addr(eth->h_dest, {dev->dev_addr | dev->broadcast})
> 
> probably its a profiling effect...

True.

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