[ndnSIM] How to get the Interest information from each face?
Alex Afanasyev
alexander.afanasyev at ucla.edu
Fri Mar 1 13:16:35 PST 2013
Hi Chengyu,
A slow tracer installation speed is an artifact of the current way I have implemented the tracer. There is definitely a need to add a couple of other Install methods that would allow more granular installing.
If you have time, you can convert the existing InstallAll method to Install(node,...) and the make a new variant of InstallAll to be wrapped on top of Install. I have a little bit overloaded at the moment to make it myself, but would be happy to integrate your patch/commit.
There is another improvement that could be made inside Connect method. As it stands right now, there is absolutely no reason to use Config::Connect, which becomes a bottleneck in cases similar to yours. When I get time, I'll push a correction to optimize the process.
---
Alex
On Mar 1, 2013, at 1:05 PM, Chengyu Fan <chengyu at cs.colostate.edu> wrote:
> I read the page, but the tracer class only provides installAll medthod.
> It installs the tracer on every node, which is very slow. (It has more than 3k nodes)
> Can I just install the tracer on producers?
>
> Thanks,
> Chengyu
>
> On Thu, Feb 28, 2013 at 12:50 PM, Alex Afanasyev <alexander.afanasyev at ucla.edu> wrote:
>> I think you overcomplicate things. Do you need this information in runtime or just for later analysis?
>>
>> If for later analysis, ndnSIM has a couple of metric tracing helpers that already collect this sort of information (http://ndnsim.net/metric.html#packet-level-trace-helpers). Both ndn::L3AggregateTracer and ndn::L3RateTracer will give the information you're interested in.
>>
>> Is it what you need or you need something more than just numbers?
>>
>> ---
>> Alex
>>
>> On Feb 27, 2013, at 4:56 PM, Chengyu Fan <chengyu at cs.colostate.edu> wrote:
>>
>>> Hi~
>>>
>>> Please forgive me if I missed something apparent.
>>>
>>> I want to collect the information of how many Interests and what Interests arrive on a node from different faces.
>>> Unfortunately, I did not find an example that shows how to collect those data.
>>>
>>> I find a class ns3::ndn::NetDeviceFace that seems suit my requirements. And I need to override RegisterProtocolHandler function.
>>> Is it correct?
>>>
>>> Or is there a Tracer class can collect the data for me?
>>>
>>> Thanks,
>>> Chengyu
>>> _______________________________________________
>>> ndnSIM mailing list
>>> ndnSIM at lists.cs.ucla.edu
>>> http://www.lists.cs.ucla.edu/mailman/listinfo/ndnsim
>
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