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

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

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

  * status:  needs_review => needs_revision


Comment:

 Hi peer. Thanks for hacking on this!

 Replying to [comment:2 peer]:
 > What can be done to parse and operate on the consensus data more
 quickly? s2012.csv took around 12 hours to generate with pypy
 first_pass.py and limited memory.
 >
 On a first glance -
 You seem to be reading and parsing the same consensus file multiple times.
 Loading all the consensus(or most) into memory first would speed it up.

 {{{
                                         if router.fingerprint in
 base_routers:
 router_overlap.append(router.fingerprint)
 current_router_overlap_count += 1
 current_router_overlap_bandwidth += router.bandwidth

                                 for fingerprint in router_overlap:
                                         base_router_overlap_bandwidth +=
 base_routers[fingerprint]
 }}}

 can be changed to

 {{{
                                         if router.fingerprint in
 base_routers:
 router_overlap.append(router.fingerprint)
 base_router_overlap_bandwidth += base_routers[router.fingerprint]
 current_router_overlap_count += 1
 current_router_overlap_bandwidth += router.bandwidth

 }}}

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7241#comment:3>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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