[Click] How to make a fast multi-core UDP generator ??

[borkmann at iogearbox.net]

Quoting shule ney <neyshule at gmail.com>:
> Thanks borkmann，I'm wondering if 1,38Mio pps is the bottleneck speed of
> 1Gbps NIC?? Since I only have 1Gbps NIC, if it's NIC‘s own problem, I think
> I can't send faster than 1,38Mio pps. Great thanks for all your guys' help.

I've seen some IXIA machines that were able to generate ~1,48M pps, but I
assume that this was achieved with specialized hardware. I think/assume in
software, you won't reach faster rates than the kernelspace pktgen.

> 2011/10/13 <borkmann at iogearbox.net>
>> You can also try the zero-copy traffic generator "trafgen" that is part of
>> the netsniff-ng
>> toolkit: http://netsniff-ng.org/ there is a Git repository, where you can
>> get it from. On
>> Gigabit Ethernet, I was able to generate about 1,25Mio 64 Byte pps from
>> userspace
>> (comp. pktgen from kernelspace: 1,38Mio pps). Other, fast packet
>> generators, that run
>> in userspace like Mausezahn (http://www.perihel.at/sec/mz/**) only reach
>> about 800k pps.
>>
>> Quoting Nikolay Denev <ndenev at gmail.com>:
>>
>>> You can try the NETMAP image from here : http://info.iet.unipi.it/~**
>>> luigi/netmap/ <http://info.iet.unipi.it/~luigi/netmap/>
>>> With it I was able to generate 13-14Mpps (64byte packets) with a Intel
>>> 10GigE card.
>>>
>>> On Oct 13, 2011, at 7:39 AM, shule ney wrote:
>>>
>>>  Hi there:
>>>> I'm trying to make a UDP generator by using udpgen.click but single
>>>> thread
>>>> kernel click seems not fast enough(around 1.4Mpps with 64B packet), so I
>>>> try
>>>> to configure and run click as multi-threaded version, However it does not
>>>> work for me when I'm using udpgen.click. once I type *click-install -t
>>>> 2*,
>>>> it tells me ignore the parameter, while other click configuration file
>>>> works
>>>> fine, I don't know why this udpgen.click can't work with multi-thread.
>>>> Another question is which is the possible bottleneck, NIC or CPU? Thanks
>>>> for
>>>> your help.
>>>>
>>>> Best
>>>> shule
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>>>>
>>>
>>>
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>>
>>
>>
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