[tor-bugs] #6401 [Analysis]: Update Tor network models from CSET paper

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#6401: Update Tor network models from CSET paper
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 Reporter:  robgjansen                              |          Owner:  robgjansen
     Type:  task                                    |         Status:  new       
 Priority:  normal                                  |      Milestone:            
Component:  Analysis                                |        Version:            
 Keywords:  simulation, performance, network model  |         Parent:            
   Points:                                          |   Actualpoints:            
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Description changed by robgjansen:

Old description:

> Our [https://www.usenix.org/conference/cset12/methodically-modeling-tor-
> network CSET paper] explains techniques for modeling the Tor network. Our
> model is verified against data from server descriptors, etc., and
> compared in Shadow and ExperimenTor. Because of exptor's limitations, we
> were restricted to 100 relays and 1000 clients.
>
> We should update the model as follows:
>
>  1. Expand the client model to include '''P2P-type''' client swarms that
> both upload '''and''' download
>  1. Expand the client model to include small '''IM-type''' (ping-like)
> clients, to better measure expected performance for clients that don't
> ever download large amounts of data
>  1. Expand the client model to use '''browser-type''' clients that are
> capable of downloading real html files, parse them, and fetch the various
> embedded objects
>  1. Re-adjust the ratios of the various client types so load and expected
> performance is similar to live Tor
>  1. Update Shadow's various sized topology files so we can run
> experiments beyond ~1000 nodes.
>
> This is a blocker for much of the performance simulation work, such as
> #5336, #4086, #4486, #4487, #5190

New description:

 Our [https://www.usenix.org/conference/cset12/methodically-modeling-tor-
 network CSET paper] explains techniques for modeling the Tor network. Our
 model is verified against data from server descriptors, etc., and compared
 in Shadow and ExperimenTor. Because of exptor's limitations, we were
 restricted to 100 relays and 1000 clients.

 We should update the model as follows:

  1. Expand the client model to include '''P2P-type''' client swarms that
 both upload '''and''' download
  1. Expand the client model to include small '''IM-type''' (ping-like)
 clients, to better measure expected performance for clients that don't
 ever download large amounts of data
  1. Expand the client model to use '''browser-type''' clients that are
 capable of downloading real html files, parse them, and fetch the various
 embedded objects
  1. Re-adjust the ratios of the various client types so load and expected
 performance is similar to live Tor
  1. Update Shadow's various sized topology files so we can run experiments
 beyond ~1000 nodes.

 This is a blocker for much of the performance simulation work, such as
 #5336, #4086, #4486, #4487, #5190, #6341

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6401#comment:3>
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