On Wed, Jan 25, 2006 at 07:50:57PM +0100, Manuel Bouyer wrote:
> On Wed, Jan 25, 2006 at 12:22:06PM +0100, Pavel Cahyna wrote:
> > the itended effect...
> > 
> > What is the purpose of hardware VLAN tagging, anyway? The performance
> > impact will be rather negative, because searching the VLAN tag in the
> > linear list of mbuf tags will be probably slower than simply prepending it
> > to the mbuf. It also seriously limits usability of tcpdump (tcpdump sees
> 
> I can tell you that it has a positive inpact on a Alpha DS20 with a
> gigabit interface; I get a 10% increase with tcpdump.

tcpdump?