ns memory usage

[Sergey Gorinsky <gorinsky@cs.utexas.edu>]

 Hi,

 It is known that ns is quite greedy in consuming memory. I just want to
check whether my simulations are introducing an unnecessary waste.

 Even though my experiments with multicast congestion control are rather
simple (the topology is a tree with 31 nodes, the links have delays of 5
ms and bandwidths of around 10 Mbs, packets are 1 KB in size), they run
out of 1 GB memory just after 100 seconds of simulation. I wrote my own
agents to implement the simulated protocol and do not really need nam
(performance data are written into small-size files and displayed by
xgraph).

  If the memory usage seems excessive to you, could you think about any
potential reasons for it? I will greatly appreciate any suggestions that
can lead to a better performance.

  Thank you,

  Sergey