[tor-bugs] #7241 [Analysis]: Visualize how quickly the Tor network changes

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Jan 9 10:15:20 UTC 2013


#7241: Visualize how quickly the Tor network changes
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 Reporter:  asn       |          Owner:              
     Type:  task      |         Status:  needs_review
 Priority:  normal    |      Milestone:              
Component:  Analysis  |        Version:              
 Keywords:            |         Parent:  #2681       
   Points:            |   Actualpoints:              
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Changes (by peer):

  * status:  needs_revision => needs_review


Comment:

 Thanks for the comments and suggestions and will look into a git repo.

 first_pass.py has been updated with gsathya's suggestion and has been
 modified to load and store fingerprints and bandwidth values.

 Total processing time has been reduced to about one hour. Loading four
 months of data takes around 1.5 GB of RAM. More time is spent loading the
 consensus file than iterating over the entries.

 Revised definitions:

 Let Y be the consensus listed (now) and X the consensus some hours ago
 (now - hours).

 Let intersection(X,Y) be the routers in both X and Y based on fingerprint.

 frac_relay is count(intersection(X,Y))/count(Y).

 frac_cw is the sum of consensus weights in Y over intersection(X,Y)
 divided by the sum of consensus weights in Y.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7241#comment:5>
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