[tor-bugs] #12891 [Tor]: Simulate KIST - global scheduling (#9262) and socket write limits (#12890)

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#12891: Simulate KIST - global scheduling (#9262) and socket write limits (#12890)
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     Reporter:  robgjansen  |      Owner:
         Type:  task        |     Status:  assigned
     Priority:  normal      |  Milestone:  Tor: 0.2.???
    Component:  Tor         |    Version:
   Resolution:              |   Keywords:  tor-relay, 027-triaged-1-out
Actual Points:              |  Parent ID:  #12541
       Points:              |
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Comment (by robgjansen):

 I believe the results I posted above are invalid. I recently found and
 fixed several bugs in Shadow which affected network performance, and
 created a more recent model of Tor that we were using for our peerflow
 experiments. I have higher confidence in this model after running many
 many experiments with it and analyzing results obtained with it.

 I compared Torperf performance in Tor vs in Shadow with my new fancy
 model. Those
 [https://trac.torproject.org/projects/tor/attachment/ticket/12891
 /shadowtorperf-ideal-model-from-ccs-peerflow.pdf results are attached
 here]. It appears that Shadow is again tracking Tor performance nicely. (I
 believe the difference in time to first byte is because Karsten and I are
 starting our download timers at different points, which we just realized
 this week.)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12891#comment:11>
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