Re: [tor-bugs] #31971 [Circumvention/Snowflake]: Snowflake is *consistently* extremely slow when using the Windows build

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#31971: Snowflake is *consistently* extremely slow when using the Windows build
-------------------------------------+-----------------------------------
 Reporter:  cypherpunks              |          Owner:  cohosh
     Type:  defect                   |         Status:  needs_information
 Priority:  Medium                   |      Milestone:
Component:  Circumvention/Snowflake  |        Version:
 Severity:  Normal                   |     Resolution:
 Keywords:                           |  Actual Points:  .5
Parent ID:                           |         Points:  3
 Reviewer:                           |        Sponsor:  Sponsor28
-------------------------------------+-----------------------------------

Comment (by phw):

 Replying to [comment:26 cohosh]:
 > So even the Firefox version of WebRTC is much slower than the Chrome
 version. I wonder if there's something special Chrome has figured out and
 is doing to get around an issue with Windows.
 [[br]]
 Huh, this is unexpected. I tried to reproduce this on a Windows 10 (not a
 VM), using an up-to-date Chrome v79 and an up-to-date Firefox v71. On
 Chrome:
 {{{
 [ OK ] Transmitting at 1476.845 kbps.
 [ OK ] Transmitting at 1449.984 kbps.
 [ OK ] Transmitting at 1479.792 kbps.
 [ OK ] Transmitting at 1471.617 kbps.
 [ OK ] Transmitting at 1476.845 kbps.
 [ OK ] Total transmitted: 7405.568 kilo-bits in 5.037 seconds.
 }}}

 On Firefox:
 {{{
 [ OK ] Transmitting at 1466.619 kbps.
 [ OK ] Transmitting at 1504.319 kbps.
 [ OK ] Transmitting at 1490.944 kbps.
 [ OK ] Transmitting at 1499.829 kbps.
 [ OK ] Transmitting at 1561.93 kbps.
 [ OK ] Total transmitted: 7593.984 kilo-bits in 5.036 seconds.
 }}}

 My Firefox v71 on Debian (on a separate physical machine) is somewhat
 faster:
 {{{
 [ OK ] Transmitting at 1622.016 kbps.
 [ OK ] Transmitting at 1662.976 kbps.
 [ OK ] Transmitting at 1690.672 kbps.
 [ OK ] Transmitting at 1687.552 kbps.
 [ OK ] Transmitting at 1695.744 kbps.
 [ OK ] Total transmitted: 8421.376 kilo-bits in 5.04 seconds.
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31971#comment:29>
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