[tor-bugs] #15482 [Tor]: Don't surprise users with new circuits in the middle of browsing

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#15482: Don't surprise users with new circuits in the middle of browsing
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     Reporter:           |      Owner:  mikeperry
  mikeperry              |     Status:  new
         Type:           |  Milestone:  Tor: 0.2.7.x-final
  enhancement            |    Version:
     Priority:  normal   |   Keywords:  tbb-usability, tbb-4.5-alpha,
    Component:  Tor      |  TorBrowserTeam201503, MikePerry201503 tbb-wants
   Resolution:           |  Parent ID:
Actual Points:           |
       Points:           |
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Comment (by nickm):

 The way I thought I implemented the randomness didn't allow for short-
 lived circuits.  It wasn't choosing randomly between [0,X], but instead
 between [X, X*9/8].

 For me, the idea of no maximum at all is a bit scary; it means that
 keepalive-type stuff will keep a circuit open forever even if the user
 doesn't expect that it would.

 Finally -- did somebody test out the isolation thing, to make sure that
 only authentication-isolated circuits get the new behavior?  I only wrote
 it; it does need some testing.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15482#comment:4>
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