netdev - Re: some veth related issues

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Message-ID: <4A790F35.60204@candelatech.com>
Date:	Tue, 04 Aug 2009 21:48:53 -0700
From:	Ben Greear <greearb@...delatech.com>
To:	Or Gerlitz <ogerlitz@...taire.com>
CC:	netdev@...r.kernel.org
Subject: Re: some veth related issues

Or Gerlitz wrote:
> Ben Greear wrote:
>> Try setting clone to 0. Might be that sending cloned pkts over veth 
>> is a bad idea.
>
> okay, thanks, this fixed the problem, however it seems there's some 
> performance loss, with cloning I saw numbers of 500K 
> packets-per-second and above where without cloning I get about 400K PPS.
Well, it seems we could and should fix veth to work, but it will have to 
do equivalent work of copying
an skb most likely, so either way you'll probably get a big performance hit.

Thanks,
Ben
>
> Or.


-- 
Ben Greear <greearb@...delatech.com> 
Candela Technologies Inc  http://www.candelatech.com


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