[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
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 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
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Comment (by cohosh):

 Okay I was able to reproduce the 10-20KB/s download speed by looking at
 the transfer rate in `about:downloads`.

 I also ran a speed test using `iperf -u` and found the performance to be
 fine:
 [[Image(iperf.png,100%)]]

 I tried a download on linux and found that I'm getting the same 10-20KB/s
 in `about:downloads` when I use snowflake. I'm starting to doubt this is a
 windows-specific problem. In any case, 20KB/s is very slow. I'll look into
 whether there are good reasons why it's so slow on all platforms.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31971#comment:19>
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