Yes, sorry. Very much work in progress, and was uploaded in a hurry. Still, glad you got somewhere with it. Andrew On 31/01/2013, at 9:57 PM, Igor Maravić wrote: > Thanks Andrew, > > I managed to start simulations. Unfortunately it wasn't as easy as expected. > > You forgot to add patch that added some cmd line arguments to tcp-qfp > and which you're using in python script + there were some problems > with python script. > > Anyway, Thanks :) > > BR > Igor > > 2013/1/31 Andrew McGregor : >> Ok, so multirun.py runs a whole set of experiments. The various commented >> bits of code around line 85 give ways to do ranges of options in several >> different ways. The options are just passed as text to tcp_qfp.cc. It runs >> experiment cases in parallel, one for each core in your machine. >> >> That will produce a huge number of files, with names that tell you which >> experiment they belong to and which nodes in the topology they were >> collected from. Then you can analyse them. >> >> burstmemoryestimators.py is a graphing routine that gives you a whole lot of >> information about what happened in each run. It opens the ptrace files left >> by the experiment (passed as an argument, you want a file called something >> like tcp_qfp-1-11-Left.pcap if there were 10 nodes in your experiment), and >> calculates a bunch of statistics: packet interarrival time (blue dots), >> burstiness metric (red) and queue markov memory metric (green). >> >> The burstiness metric runs from -1 (periodic) through 0 (Poisson process) to >> +1 (1/f noise). >> >> The memory metric is zero if the queue is perfectly memoryless, and non-zero >> proportional to how much memory it has. Thus it shows the queue's >> contribution to interarrival time statistics. Note that a queue is >> memoryless both if it is empty OR if it is completely full, and this metric >> is signed (negative if the queue is draining). >> >> It only makes sense to run this script on a leaf link; if there is more than >> one flow, the estimators will not track flows separately and thus will not >> make sense. >> >> >> On Wed, Jan 30, 2013 at 11:21 PM, Igor Maravić wrote: >>> >>> Hi Andrew, >>> >>> I'm trying to use useful python scripts from ns-3-dev GitHub repo, but >>> unsuccessfully. >>> >>> Could you provide some usage cases on how they should be used? >>> >>> BR >>> Igor >>> _______________________________________________ >>> Codel mailing list >>> Codel@lists.bufferbloat.net >>> https://lists.bufferbloat.net/listinfo/codel >> >>