Subject: Re: Ethernet address copy performance tweak
To: =?iso-8859-1?Q?Andreas_=D6man?= <firstname.lastname@example.org>
From: Jason R Thorpe <email@example.com>
Date: 08/19/2002 08:35:59
On Mon, Aug 19, 2002 at 10:01:17AM +0200, Andreas Íman wrote:
> Just out of curiosity. Have anyone tried working with prebuilt
> ether-headers (stored somewhere in the rtentry for a link local route) ?
> And just let the NIC DMA gather it for you and no copying needs to be
> done at all.
> Or would that cause too much performance penalties in the NIC because we
> consume too many DMA descriptors for one single packet ?
That's certainly something worth looking into, but it would be a fairly
significant change to the network code.
-- Jason R. Thorpe <firstname.lastname@example.org>