add possibility to specify server-id

[Hades32]

To be have less variance in the measurements I'd like to always use the same server and not rely on the auto-detection which sometimes selects pretty bad servers.

Not much python experience here, so hope the PR is ok :)

[Hades32]

BTW, I opened this PR originally, because the official speedtest CLI is able to measure >900MBit/s for my line. But this version here only get about 280 MBit/s . Both running on my Pine64 (arm64) board. Maybe you have an idea, why...

[jeanralphaviles]

BTW, I opened this PR originally, because the official speedtest CLI is able to measure >900MBit/s for my line. But this version here only get about 280 MBit/s . Both running on my Pine64 (arm64) board. Maybe you have an idea, why...

Nice internet :). I haven't seen any differences in speed reported by speedtest-cli and prometheus_speedtest; at least at the 85 MiB I'm getting. We're just a thin wrapper around the tool.

It could be the client options we're setting. This server flag should help, thank you.

[Hades32]

Ah I probably should have been more specific. When I was referring to "the official speedtest CLI" I did not mean the python speedtest-cli project, but the CLI provided by speedtest.net which is a binary (maybe C?). But yes, probably then it would be a problem in your underlying library and not in your code. Probably should open an issue there.

[jeanralphaviles]

Just these couple None vs [] nits then LGTM.

[Hades32]

Thanks for your feedback. Incorporated all your requested changes.

BTW, I reported the wrong measurements downstream, but was not very helpful: https://github.com/sivel/speedtest-cli/issues/716#issuecomment-610788176

[jeanralphaviles]

Thank you!