[SOLVED] Speedtest-cli: Upload Speed is Capped Because the Kernel Uses BBR

[Proxygen]

BBR seems to be the reason for upload speeds limited to 4.17Mbps when using speedtest-cli on kernel >= 4.9.

See https://github.com/sivel/speedtest-cli/issues/605

Until this is resolved, use iperf to test upload speeds.

PS: This is not a tutorial, but it is surely not a question.

 

[Stoiko Ivanov]

Thanks for the find and report - we had quite a few questions regarding this recently!