[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:  needs_information
 Priority:  normal                     |      Milestone:                   
Component:  Analysis                   |        Version:                   
 Keywords:  performance loadbalancing  |         Parent:                   
   Points:                             |   Actualpoints:                   
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Comment(by iang):

 OK, so my eyeballing of ~500 MB/s excluded at a 1 MB/s cutoff turned out
 to be pretty darned close.  ;-)

 So at that cutoff, about 15% of the network bandwidth disappears.  But
 that 15% was spread (highly unevenly) over 2100 relays.  Each of those
 relays, according to the linf figure, contributed a maximum of about 0.5%
 of the bandwidth, and in turn, the remaining relays see at most 0.5% extra
 users.  (NOTE: that's 0.5% of *all* the users, not 0.5% of what it had
 before.)

 OK, here's the plot I'm interested in now: x-axis: bandwidth of relay (log
 scale).  y-axis: one line showing the probability distribution of relay
 selection with a 20 KB/s cutoff, and one with a 1 MB/s cutoff.  Feel free
 to throw other intermediate values in there as well.  We'll probably need
 a version with a linear y-axis and one with a log y-axis.

 Is that easy to do?

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/1854#comment:45>
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