speedtest.net added support for tracking latency under load a few years ago. they show ping during up/dl now. That's the number to show your colleague.
However they tend to use something like the 75th percentile and throw out real data. The waveform bufferbloat test does 95% and supplies whisker charts. cloudflare also.
No web test tests up + down at the same time, which is the worst scenario. crusader and flent.org's rrul test do.
Rathan than argue with your colleague, why not just slap an OpenWrt box as a transparent bridge inline and configure CAKE SQM?
However they tend to use something like the 75th percentile and throw out real data. The waveform bufferbloat test does 95% and supplies whisker charts. cloudflare also.
No web test tests up + down at the same time, which is the worst scenario. crusader and flent.org's rrul test do.
Rathan than argue with your colleague, why not just slap an OpenWrt box as a transparent bridge inline and configure CAKE SQM?