netdev - Re: [WIP][PATCHES] Network xmit batching

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Date:	Tue, 03 Jul 2007 21:59:48 -0400
From:	jamal <hadi@...erus.ca>
To:	Matt Carlson <mcarlson@...adcom.com>
Cc:	Robert Olsson <Robert.Olsson@...a.slu.se>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	Krishna Kumar2 <krkumar2@...ibm.com>,
	Gagan Arneja <gaagaan@...il.com>, netdev@...r.kernel.org,
	Rick Jones <rick.jones2@...com>,
	Sridhar Samudrala <sri@...ibm.com>,
	David Miller <davem@...emloft.net>,
	Jeff Garzik <jeff@...zik.org>,
	Michael Chan <mchan@...adcom.com>
Subject: Re: [WIP][PATCHES] Network xmit batching - tg3 support

On Tue, 2007-03-07 at 12:31 -0700, Matt Carlson wrote:

> I had planned on using netperf, but pktgen sounds like a more controlled
> environment.  Thanks for the tip.

I can help more if you use pktgen - netperf is more involved. Also
pktgen is much closer to the driver so it would let you see closely
if any improvements are obvious or not. 

> Do you see any reason why we couldn't just add the VLAN code to the prep
> stage and simply overwrite that portion of the skb-cb?  Our driver would
> just store its value in the base_flags member of tg3_tx_cbdata.

That would be a much better approach;-> Go for it.

cheers,
jamal


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