[ndnSIM] a problem in 'ndn-simple-with-pit-operation-stats'

[Amin Karami]

> Hi Alex,
> I ran the ./waf --run=ndn-simple-with-pit-operation-stats by Lru 
> implementation for PIT table.
> I set PIT Size to 50:   ndnHelper.SetPit 
> ("ns3::ndn::pit::Lru::AggregateStats","MaxSize","50");
> Interest rate to 1000:   consumerHelper.SetAttribute ("Frequency", 
> StringValue ("1000"));
> Finally, the output is:
> Time    NodeId    Updates         Inserts         Lookups Erases
> 1                1                0 990 3                940
> 2                1                0 999 0                999
> 3                1                0 998 0                998
> 4                1                0                1000 0              
> 1000
> 5                1                0                1000 0              
> 1000
> 6                1                0                1000 0              
> 1000
> 7                1                0                1000 0              
> 1000
> 8                1                0                1000 0              
> 1000
> 9                1                0                1000 0              
> 1000
> 10              1                0                1000 0              
> 1000
>
> As you see, the number of Insert/Lookup/Erase is based on the rate of 
> the Consumer (1000 interests per second), not based on the maximum PIT 
> size. I think maximum insert/Erase should be fixed to 50 (PIT size) 
> not to 1000 (consumer rate).
> Is there any problem?
>
>
> Best Regards,
> Amin
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