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

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#22798: Windows relay is several times slower than Linux relay
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 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:
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Comment (by cypherpunks):

 > It's not Linux, which accelerated my relay, but NAT from VirtualBox?

 According to manual VirtualBox tunes buffers for itself yet, effectively
 disables host optimizations if any exists.
 > The VirtualBox NAT stack performance is often determined by its
 interaction with the host’s TCP/IP stack and the size of several buffers (
 SO_RCVBUF and SO_SNDBUF ). For certain setups users might want to adjust
 the buffer size for a better performance. This can by achieved using the
 following commands (values are in kilobytes and can range from 8 to 1024)
 > Each of these buffers has a default size of 64KB

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22798#comment:112>
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