[tor-bugs] #21205 [Core Tor/Tor]: Instrument clients to measure directory usage

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#21205: Instrument clients to measure directory usage
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 Reporter:  nickm         |          Owner:
     Type:  project       |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.3.1.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:  sponsor4      |  Actual Points:
Parent ID:                |         Points:  parent
 Reviewer:                |        Sponsor:
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Changes (by ahf):

 * cc: ahf (added)


Comment:

 Additional possible scenarios for client usage after a discussion in
 `#tor-dev`:

 - Client turns on, fetches an HTTP website, idles for N minutes, then
 shuts down for M minutes, then starts again.
 - Add systematic "noise" to some of the already listed tests: For example:
 client is completely unused, but have a flaky network connection.
 - For the IRC test (long-lasting connection): add occasional retries and
 some bursty behaviour.

 Roger additionally suggested using `tgen`, from Shadow, to generate
 realistic-looking network traffic, but since this is about directory
 connectivity performance enhancements, we decided to not look at it for
 now.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21205#comment:1>
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