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Add xxx-padding-machines-for-onion-clients.txt. #72

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commented Mar 29, 2019

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@asn-d6 asn-d6 force-pushed the asn-d6:bug28634 branch 2 times, most recently from 3fe66f7 to eb77f96 Apr 4, 2019

@asn-d6 asn-d6 force-pushed the asn-d6:bug28634 branch from eb77f96 to 13ae5b6 Apr 17, 2019

out. In particular, the origin-side machine needs in average 3.3 secs to
deplete all its padding cells, and hence it will slightly increase the
circuit lifetime. See section [IMPROVEMENTS] for a further low-hanging-fruit
improvement in this direction.

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mikeperry-tor Apr 30, 2019

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Where is the IMPROVEMENTS section?

Also, the manage_circ_lifetime field should keep the circuit open for MaxCircuitDirtiness seconds now. Is that not the case?

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asn-d6 May 2, 2019

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Oops, the IMPROVEMENTS section was removed. It was suggesting to split the machine into multiple phases, so that we try to hide the post-circuit-construction traffic as well.

Good point that the #28780 also messes with MaxCircuitDiriness need to update that.


XXX Isn't this kinda intense????? Using the graphs from metrics we see that
the Tor network has total capacity of 300 Gbit/s which is about 135000GB per
hour, so 3.9GB per hour is not that much, but still...

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@mikeperry-tor

mikeperry-tor Apr 30, 2019

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Nah, this is fine 🔥.

We need to skate to where the puck is going to be, or we'll deadlock forever on stuff like this and never deploy anything. The plan is to implement proposal #265 and ask people to run more middle relays, at which point 3.9GB per hour will become negligible (it's already close to that, since exits are often scarce by more than that much anyway).

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@asn-d6

asn-d6 May 2, 2019

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ACK

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