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Re: [tor-bugs] #1854 [Analysis]: Investigate raising the minimum bandwidth for getting the Fast flag
#1854: Investigate raising the minimum bandwidth for getting the Fast flag
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Reporter: arma | Owner: arma
Type: task | Status: needs_review
Priority: normal | Milestone:
Component: Analysis | Version:
Keywords: performance loadbalancing | Parent:
Points: | Actualpoints:
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Changes (by gsathya):
* status: needs_revision => needs_review
Comment:
Replying to [comment:28 karsten]:
> Here, `validafter` is the consensus valid-after time, `min_advbw` is the
minimum advertised bandwidth of relays kept in the modified consensus,
`relays` is the number of those relays, and `linf` is the largest
difference between consensus weight fractions of all relays. The
probability in the pristine consensus is always the consensus weight
fraction. The probability in the modified consensus is 0 if the relay was
excluded, or the consensus weight fraction relative to the ''new''
consensus weight sum (which is lower than the original consensus weight
sum, because we cut out some relays). We'll want to compare probabilities
of all relays, including those that we excluded, because they have non-
zero probability in the modified consensus.
>
"The probability in the modified consensus is 0 if the relay was
excluded," and "including those that we excluded, because they have non-
zero probability in the modified consensus" seem to be contradicting?
> Sathya, want to look into modifying pyentropy.py for the linf stuff?
I'm ignoring the probabilities of relays that we excluded because they
have 0 probability. Please check my [https://github.com/gsathya/metrics-
tasks/tree/bug_1854_v2 bug_1854_v2] branch Thanks!
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/1854#comment:30>
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