Subject: Re: pktgen question

From: Steve Wise <[email-masked]>
Date: Mon, 24 Sep 2007 10:00:58 -0500

Ben Greear wrote:
> Steve Wise wrote:
>> I think pktgen should be cloning the skbs using skb_clone().  Then it 
>> will work for all devices, eh?
> That might work, but it would decrease performance slightly (or, 
> increase CPU load at least).

Perf-wise, you could clone the skbs up front, then deliver them to the 
nic in a tight loop.  This would mitigate the added overhead introduced 
by calling skb_clone() in the loop doing transmits...

> 
> Maybe a new option:  multi_clone
> 

If the current code is busted, I think it should be fixed.

My 2 cents.

Steve.