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Re: [tor-bugs] #22798 [Core Tor/Tor]: Windows relay is several times slower than Linux relay

#22798: Windows relay is several times slower than Linux relay
-------------------------------------------+-------------------------------
 Reporter:  Vort                           |          Owner:
     Type:  defect                         |         Status:  new
 Priority:  Medium                         |      Milestone:  Tor:
                                           |  unspecified
Component:  Core Tor/Tor                   |        Version:  Tor: 0.2.9.11
 Severity:  Normal                         |     Resolution:
 Keywords:  tor-relay performance windows  |  Actual Points:
Parent ID:                                 |         Points:  5
 Reviewer:                                 |        Sponsor:
-------------------------------------------+-------------------------------

Comment (by cypherpunks):

 Tested NAT-ed guest Win7 with "BwTest.3.exe -c ip_of_local_host -u" (yet
 moded to report SNDBUF on start and later). When NAT-ed it connects to
 host's "bwtest -s -d" over "lo" interface, so added delay to "lo" and got
 ping 500ms. It uploads faster than usual 53KiB/s but reported SNDBUF ==
 8KB anyway. In guest's wireshark ACKs have no delays. WAN latency doesn't
 affect tcp data in NAT mode, guest communicates internally with VM process
 on host without host's tcp stack: all acks appears immediately, peer's
 tcp_window differs, etc. VM process behaves like proxy for guest in NAT
 mode.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22798#comment:98>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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