[tor-bugs] #4086 [Analysis]: Compare performance of TokenBucketRefillInterval params in simulated network

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Thu Sep 20 14:54:20 UTC 2012


#4086: Compare performance of TokenBucketRefillInterval params in simulated
network
-------------------------------------+--------------------------------------
 Reporter:  arma                     |          Owner:  karsten 
     Type:  task                     |         Status:  assigned
 Priority:  normal                   |      Milestone:          
Component:  Analysis                 |        Version:          
 Keywords:  performance flowcontrol  |         Parent:  #4465   
   Points:                           |   Actualpoints:          
-------------------------------------+--------------------------------------

Comment(by robgjansen):

 Replying to [comment:32 robgjansen]:
 > Following arma's advice in #4486, I suggest we use the large-m2.4xlarge
 topology. Its both distributed with Shadow (resource/scallion-
 hosts/large-m2.4xlarge.tar.xz) and also exists in the current EC2 image
 (~/workspace/large-m2.4xlarge).

 I'm changing my mind.

 After doing a sample experiment with the large-m2.4xlarge.tar.xz model
 distributed with Shadow, I'm now thinking we should use the model from
 #6401 instead. The reason is that in my sample experiment, bulk data only
 accounts for about 10% of the network load, whereas the PETS 2008 exit
 traffic study says it is 40%, and the NSS 2010 study said it was 52%. I've
 already analyzed the load to be more approximately correct in the #6401
 model.

 Sorry to flip-flop. If you've already run the experiments, the results are
 probably useful anyway.

 Thoughts?

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4086#comment:33>
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