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

#12891: Simulate KIST - global scheduling (#9262) and socket write limits (#12890)
----------------------------+--------------------------------
     Reporter:  robgjansen  |      Owner:  robgjansen
         Type:  task        |     Status:  new
     Priority:  normal      |  Milestone:  Tor: 0.2.7.x-final
    Component:  Tor         |    Version:
   Resolution:              |   Keywords:  tor-relay
Actual Points:              |  Parent ID:  #12541
       Points:              |
----------------------------+--------------------------------

Comment (by robgjansen):

 After numerous big fixes and new Tor network model, I finally have some
 initial results. I tested nickm/kist at commit
 55814effcb96ff4998e75a2136ac2ed631247d8a with `UseKIST 0` and `UseKIST 1`.

 The results totally blow. Downloads times increased dramatically when
 using the new feature and Tor queue times were unchanged. I also noticed
 download failure modes around 5 minutes and 10 minutes, and am still
 looking into the cause.

 None of this makes sense to me yet, and I have little confidence in the
 results I got. (Specifically, the queue times should have at least
 slightly changed, but I have not observed that.) My current thinking is
 that the problems are primarily due to the changes that occurred as a
 result of using a new network model. So my next step is to simulate under
 our older, stable model and go from there.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12891#comment:6>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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