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

Tor Bug Tracker & Wiki blackhole at torproject.org
Fri Jul 7 14:40:02 UTC 2017


#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):

 > I tested this code with IDEAL_SEND_BACKLOG for virtual (unlimit) low
 latency local link (guest win7 to host linux), it goes to grow buffer to
 2M without any reason, if to keep report ideal buffer (it says 64k)
 without actual changes (system default sndbuf reported as 8k) then it
 transfer with the same speed as with 2M buffer size.

 Tested with latency 1, 5, 10, it wants 2M (probably depends maximum size
 of system memory) always.

 Outbound connection behaves differently, if some real latency present
 (1ms, 10ms) it doesn't tries to get all available bw, IDEAL_SEND_BACKLOG
 returns 64k every time.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22798#comment:77>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online


More information about the tor-bugs mailing list