Neat, I was not aware of `networkQuality`. A good replacement for opening up Speedtest or whatnot when you just want to figure out if the network is slow or something else is up.
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That’s sort of the idea of `networkQuality`. It’s a new idea for how to measure that’s different from the standard speed test.
Through if you run it with the `-s` flag it’ll test them sequentially.
My one experience with this is on Ubiquiti hardware where there's a feature called "Smart Queues" you can enable. Really it's FQ_CODEL[1] under the hood. If you tell it your real maximum up/down bandwidth, minus ~5%, it'll enforce those limits in a way that prevents buffer bloat and lets you use nearly your full download bandwidth even when your upload bandwidth is maxed out. On Ubiquiti gear this has a CPU impact since it has move some traffic handling from dedicated hardware to the CPU. But it was a huge night and day difference for me. After enabling this, having a couple people on Zoom calls (highish upload) no longer tanked everyone else's download speed.
Also I think this stuff matters more when you have a large multi-user network. For normal home life, definitely not worth it. (In my case it was wifi for ~20 people).
[0] https://en.wikipedia.org/wiki/Bufferbloat [1] https://en.wikipedia.org/wiki/CoDel