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Date:	Tue, 05 Jun 2007 20:28:39 +0200
From:	Patrick McHardy <>
To:	Ben Greear <>
Subject: Re: [RFC VLAN 00/10]: VLAN netlink support try 2

Ben Greear wrote:
> Patrick McHardy wrote:
>> The last VLAN patchset was outdated, sorry about the mixup. These are the
>> correct patches. The iproute patch I posted was correct, so no repost of
>> that one.
> Is there any significant performance penalty in creating VLANs using
> these patches?
> If you have a test station handy, could you let us know what 'time'
> shows for a script
> creating 4000 VLANs with the old vconfig/ioctl method v/s this new method?

Not significantly more, for 1000 VLANs I get:

ip link add:

real    0m22.836s
user    0m0.100s
sys     0m5.850s

vconfig add:

real    0m19.739s
user    0m0.090s
sys     0m3.600s

ip -b (batch add):

real    0m5.239s
user    0m0.280s
sys     0m3.480s

> I'll try to look through the rest of the patches in detail later today.

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