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[tor-bugs] #4482 [Analysis]: Research: what's the relationship between capacity, bytes used, and torperf?
#4482: Research: what's the relationship between capacity, bytes used, and
torperf?
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Reporter: arma | Owner:
Type: task | Status: new
Priority: normal | Milestone:
Component: Analysis | Version:
Keywords: performance | Parent:
Points: | Actualpoints:
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It seems that when our network capacity goes down, the torperf latency
goes up. And vice versa. Except it's not a perfect correlation, and
sometimes the response is damped more than other times.
Seems to me that the less capacity there is (relative to actual load), the
more losing further capacity will influence the torperf results. And the
more capacity there i (relative to actual load), the less gaining further
capacity will influence the torperf results.
Is there a way to predict where the 'healthy' or 'unhealthy' parts of this
relationship graph are?
Step one is to try to figure out what data points we have so far, and get
an intuition for what we think happened, and how healthy we think the
network was, in each case.
Step two might be to design some experiments where we intentionally gain
or lose capacity in a controlled way, and observe the effect on torperf
results, either to confirm a hypothesis or to get more data points.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4482>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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