netdev - Re: VLAN egress performance

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Message-ID: <87aavjfyum.fsf@isengard.friendlyfire.se>
Date:	Mon, 08 Feb 2010 17:58:57 +0100
From:	Mattias Rönnblom <hofors@...ator.liu.se>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	netdev@...r.kernel.org
Subject: Re: VLAN egress performance

Patrick McHardy <kaber@...sh.net> writes:

>> Ingress VLAN  Egress VLAN  Packet Rate    CPU utilization (all cores)
>> No            No           5.0 Mpacket/s  ~70%
>> Yes           No           5.0 Mpacket/s  ~75%
>> No            Yes          1.4 Mpacket/s  ~26%
>> Yes           Yes          1.3 Mpacket/s  ~26%
>> 
> 2.6.32 contains VLAN multiqueue support and should scale better.

OK, excellent. I tried out 2.6.32.7 and it did 4.0 Mpacket/s with VLAN
on both ingress and egress, and ~4.7 Mpacket/s without any VLANs.

Thanks,
     Mattias
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