I think such a tool is fairly straightforward to develop with iperf 2 as the underlying src/sink. The man page has new features including start times & permit keys. Active, low duty-cycle, low impact telemetry has been a goal. The idea is that someone else would develop a web app and host public servers. As an iperf 2 maintainer, I'm trying to remain arm's length from such products but I do think the industry... Source: over 1 year ago

Iperf 2 can help and has many new tests including one way delay, low duty cycle burst, tcp bouncback, etc. More on the man page. OWD does required clock sync. Source: over 1 year ago

A bit of a tangent, but there are a lot of new features in iperf 2, much are around latency or one way delay (OWD). Many times these days it's latency that affects the quality of experience to end users. Source: about 2 years ago

Is this for remote access VPN? If so, what kind of bandwidth are you seeing on a speed test site like fast.com (with the VPN off) compared to the VPN bandwidth you're experiencing? Source: 6 months ago

What result do you get from fast.com ? What about if you ping your router? Source: 6 months ago

Websites like speedtest.net, fast.com and etc do provide measurement in megabits, and even with that, speedtest.net provides it between you and your ISP(mostly) only. So if you want to download something from lets say, YouTube, the speed will be slightly different because now you're connecting to Google's server, not your ISP's server. This is because speedtest.net has partnership with ISPs so that speedtest.net... Source: 6 months ago

If fast.com and speedtest.net are fast, then it's not the computer or your internet. Source: 6 months ago

If you try a speed test with only your PC connected via LAN (visit fast.com), do you get reasonable upload and download speeds? Are the speeds consistent? Source: 6 months ago