[tor-bugs] #32720 [Core Tor/Tor]: How much bandwidth does a user use to bootstrap and maintain dir info? How has that changed over time?

[Tor Bug Tracker & Wiki]

#32720: How much bandwidth does a user use to bootstrap and maintain dir info? How
has that changed over time?
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 Reporter:  arma          |          Owner:  nickm
     Type:  task          |         Status:  accepted
 Priority:  Medium        |      Milestone:
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Changes (by nickm):

 * status:  new => accepted
 * owner:  (none) => nickm


Comment:

 I've measured this in the silliest way possible: instrumenting the
 directory code to dump how much it downloads, and then running it for
 24-48 hours with a fresh datadirectory.

 With a Tor ~0.4.2 client, in late July, I got 2.4 MiB to bootstrap, plus
 mean 47 KiB per epoch to stay up-to-date.

 I'm attaching the tarball of my experiment; I'm happy to re-run this with
 other versions and settings, so long as they work on the current Tor
 network.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32720#comment:1>
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