[tor-bugs] #5336 [Analysis]: Do simulations of initial proposal 182 patch

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#5336: Do simulations of initial proposal 182 patch
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 Reporter:  arma      |          Owner:              
     Type:  task      |         Status:  needs_review
 Priority:  normal    |      Milestone:              
Component:  Analysis  |        Version:              
 Keywords:            |         Parent:  #4682       
   Points:            |   Actualpoints:              
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Changes (by karsten):

  * status:  new => needs_review


Comment:

 Replying to [comment:18 robgjansen]:
 > 1. Print the heartbeat message every second instead of every minute with
 $ scallion --heartbeat-frequency=1 …
 > 2. The heartbeat message will contain the number of bytes each nodes
 sends and receives per second. Match that up with the relay bandwidth
 limits to determine if nodes are actually obeying their bandwidth limits.
 You probably have to either modify the parse() function in analyze.py, or
 write a new script for this.

 Done.  I wrote my own script and made two graphs: the
 [https://trac.torproject.org/projects/tor/attachment/ticket/5336/task5336-bwrate-2012-10-03.png
 first graph] compares bandwidth rates to median bandwidths, and the
 [https://trac.torproject.org/projects/tor/attachment/ticket/5336/task5336-bwburst-2012-10-03.png
 second graph] compares bandwidth bursts to 99th percentiles.  For me it
 looks like all three branches respect bandwidth rates quite well and do
 '''not''' respect bandwidth bursts as much as they should.  I do not see
 major differences between the three branches.  I wonder if there's a
 better way to visualize this.

 > The per-node memory tracking is not working yet in Shadow, so we'll only
 be able to say things about overall memory consumption by looking at the
 data/dstat.log file.

 I have the three dstat.log files.  What do I do with them?

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5336#comment:19>
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