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[tor-bugs] #2794 [Metrics]: Find a good metric for bridge churn
#2794: Find a good metric for bridge churn
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Reporter: karsten | Owner: karsten
Type: task | Status: new
Priority: normal | Milestone:
Component: Metrics | Version:
Keywords: | Parent:
Points: | Actualpoints:
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We are still lacking a good metric for bridge churn, that is, the rate of
joining and leaving bridges over time. If this rate is too high, we
should give out more bridges to bridge users, because otherwise they'll
soon end up with bridges that left the network. If the rate is lower than
expected, we might even give out fewer bridges, and bridge users will
still be able to use Tor.
Here's a possible metric for bridge churn: Of the bridges that are
running at the beginning of a month, what fraction keeps running
throughout the month? And what fraction of bridges keeps running on the
same IP address that they had at the beginning of the month?
In the attachment you'll find a graph for January 2011. The graph shows
when bridges that were running on January 2 are listed in the bridge
network status throughout the month with a) any IP address or b) the same
IP address. I'm going to commit the code to metrics-tasks and add a link
here later today.
Thoughts?
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2794>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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