[ndnSIM] Questions about the AggregateTracer stat info

[Alex Afanasyev]

Hi Chengyu,

Yes, the period specified in InstallAll specifies aggregation time, and in each period number of Interests/Data is counted independently.  

Actually, if you specify a time period that is longer than the simulation time, you should get aggregate numbers for the whole simulation.

---
Alex

On Mar 20, 2013, at 10:25 AM, Chengyu Fan <chengyu at cs.colostate.edu> wrote:

> Hi Alex,
> 
> When we use L3AggregateTracer, we usually create it as follows:
> -------------------------------------------------------------------------------------------------------------------
> boost::tuple< boost::shared_ptr<std::ostream>, std::list<Ptr<ndn::L3AggregateTracer> > >
>   aggTracers = ndn::L3AggregateTracer::InstallAll ("aggregate-trace.txt", Seconds (1.0));
> -------------------------------------------------------------------------------------------------------------------
> 
> I think this means that AggregateTracer will print the stat information in the "aggregate-trace.txt" every second.
> 
> My question is : 
> Is the stat information only for one second interval? 
> 
> For instance, at second 1, the Tracer collects 10 incoming Interests, so it prints it out 10; after that, it collects 5 incoming Interests, 
> so at second 2, how many incoming Interests will the Tracer print out? 5 or 10?
> 
> Thanks,
> Chengyu
> 
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