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Re: [tor-bugs] #6341 [Tor Relay]: connection_or_flush_from_first_active_circuit() does wrong thing when ewma_enabled
#6341: connection_or_flush_from_first_active_circuit() does wrong thing when
ewma_enabled
-----------------------+----------------------------------------------------
Reporter: arma | Owner:
Type: defect | Status: needs_review
Priority: normal | Milestone: Tor: 0.2.3.x-final
Component: Tor Relay | Version:
Keywords: | Parent:
Points: | Actualpoints:
-----------------------+----------------------------------------------------
Comment(by robgjansen):
I just uploaded the graphs. You can find the Tor network and client model
described in #6401.
There are 3 simulations here, all done with tor-0.2.3.16-alpha.
Load distribution in vanilla Tor:
{{{
TYPE #XFERS GiB %
im 34735 0.033 0.075
web 85779 26.178 59.376
bulk 1586 7.744 17.565
p2p 596397 9.100 20.641
perf50k 1896 0.090 0.205
perf1m 965 0.942 2.138
TOTAL 721358 44.088 100.000
}}}
Load distribution with CircuitPriorityHalflife 30, not patched:
{{{
TYPE #XFERS GiB %
im 6610 0.006 0.042
web 23264 7.100 47.495
bulk 1451 7.085 47.397
p2p 12919 0.197 1.319
perf50k 585 0.028 0.187
perf1m 545 0.532 3.560
TOTAL 45374 14.948 100.000
}}}
Load distribution with CircuitPriorityHalflife 30, patched:
{{{
TYPE #XFERS GiB %
im 18485 0.018 0.045
web 60669 18.515 46.973
bulk 2770 13.525 34.315
p2p 416375 6.353 16.119
perf50k 1650 0.079 0.200
perf1m 948 0.926 2.349
TOTAL 500897 39.416 100.000
}}}
I have not analyzed the log file, but it looks like some crazy shit
happened in the middle graph, when the patch was not applied. Was this
somewhat expected? Or is this backwards, i.e. were you thinking the patch
would make things explode?
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6341#comment:21>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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