[tor-bugs] #1854 [Analysis]: Investigate raising the minimum bandwidth for getting the Fast flag

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#1854: Investigate raising the minimum bandwidth for getting the Fast flag
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 Reporter:  arma                       |          Owner:  arma    
     Type:  task                       |         Status:  assigned
 Priority:  normal                     |      Milestone:          
Component:  Analysis                   |        Version:          
 Keywords:  performance loadbalancing  |         Parent:          
   Points:                             |   Actualpoints:          
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Comment(by karsten):

 Replying to [comment:13 gsathya]:
 > Replying to [comment:12 karsten]:
 > > gsathya, asn, is this something you want to look into?
 >
 > Yep. How do you want the output of the script to look like?

 Cool!  How about a format similar to #6232?

 {{{
 validafter,min_cw,relays,all,max_all,exit,max_exit,guard,max_guard,country,max_country,as,max_as
 2012-09-10
 01:00:00,1,3040,7.44,11.26,5.79,9.73,6.12,8.99,3.23,6.26,5.44,9.57
 2012-09-10 01:00:00,2,[...]
 }}}

 In that output, `min_cw` is the minimum consensus weight of relays that we
 keep in the consensus.  That value would start at the smallest consensus
 weight in the network, and we'd calculate entropy values for all relays in
 the consensus.  Then we'd raise the minimum to the second-smallest value
 in the network, throw out all relays below that value, and compute new
 entropy values.  Continue until we're at the relay with highest consensus
 weight.

 The first column, `validafter`, is the consensus valid-after time.  The
 third column, `relays`, contains the number of relays left.  The other
 columns (`all`, `max_all`, etc.) are defined similar to #6232.

 '''Roger''', please note that I assumed you want to cut out relays based
 on consensus weight, not advertised bandwidth.  Please correct me if that
 assumption is wrong.  (Writing the analysis script for consensus weights
 is probably easier, so we could later extend it to advertised bandwidth if
 required.)

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/1854#comment:18>
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