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Re: [tor-bugs] #18122 [Tor Browser]: Show prefetched new Tor circuit
#18122: Show prefetched new Tor circuit
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Reporter: bugzilla | Owner: tbb-
Type: enhancement | team
Priority: Medium | Status:
Component: Tor Browser | reopened
Severity: Normal | Milestone:
Keywords: tbb-circuit-display, tbb-usability, | Version:
tbb-performance | Resolution:
Parent ID: | Actual Points:
Sponsor: | Points:
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Comment (by cypherpunks):
It is rare that circuit creation is slow. What usually happens is that the
network connection times out after Tor attaches the stream to a circuit
(the timeout is normally 10s). If that happens, Tor will retry with a new
circuit.
Some exit nodes appear to be blackholed by some destinations and don't
receive any network replies. In this case you will get the timeouts.
I often monitor timestamped Tor control STREAM and CIRC events, so I know
where the delay is.
Your UI suggestions in comment 2 don't make much sense. Idle prebuilt
circuits are assigned opportunistically and may be used by an existing tab
or some other application or Tor may have to create a new one if the exit
relay doesn't support the target port.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18122#comment:4>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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