#26868: How does metrics get bridge statistics at a granularity of 1 user? --------------------------------+------------------------------ Reporter: teor | Owner: metrics-team Type: defect | Status: new Priority: Medium | Milestone: Component: Metrics/Statistics | Version: Severity: Normal | Resolution: Keywords: | Actual Points: Parent ID: | Points: Reviewer: | Sponsor: --------------------------------+------------------------------
Comment (by teor): So, I believe he answer to my question is: "We approximate directory request numbers by multiplying the fraction of unique IP addresses from a given country, transport, or IP version with the total number of successful requests." But I think there are two missing steps: * Metrics appears to round/truncate/ceiling client numbers to the nearest integer * You say that you "Skip dates where frac is smaller than 10% and hence too low for a robust estimate" * are the snowflake bridges less than 10% of total bridge usage? That could be why their numbers vary so much. * how do you calculate 10% of bridge usage? (Bridges don't have bandwidth, so do you use unique IP addresses?) -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26868#comment:7> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online
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