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

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Jul 5 11:44:49 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):

 > Probably, the difference is that in relay case, connection is incoming
 and in non-relay case is outgoing.
 > Yes.

 Can you test even more ~~crazy~~ random tweak yet?
 Try to remove code:
 {{{
         if (!connection_is_reading(conn)) {
           connection_stop_writing(conn);
           conn->write_blocked_on_bw = 1;
           /* we'll start reading again when we get more tokens in our
            * read bucket; then we'll start writing again too.
            */
         }
 }}}
 from connection_handle_write_impl()

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22798#comment:24>
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