51–60 of 216 posts
You also probably need some internal/LAN speed measurement tools. When your wifi link is over-crowded, measuring your uplink isn't much use. I use iperf3.
Why, here’s some now!
Pretty much spot on for me. 2gig/1gig fiber internet and I got 1.95 Gbps/960 Mbps
Wow that’s fast. Genuine question: what’s it like having internet that fast? Because I get 40-50Mbps down and ~16 Mbps down on that tool, and I have fibre to the property (yay, Australia) and I’m so curious to know what’s it like to have a connection that’s actually good .
Earlier quoted context omitted.
Not how it’s usually measured…link speed is pretty much always in bits/s
I don't measure file size in bits. I don't want to multiply/divide by 8 when roughly estimating how long a download will take. I end up doing 10 instead for maximum ease and pessimism.
Why do these speed tests start out slow and then get faster over the course of a few seconds? Is it something about the internet that means the speed changes so much over the course of the test?
But the first keyword I would look at would be BGP.
Generally speaking, routing decisions are dynamic and constantly changing. Add the unreliability of the network layer, corporate politics and optimization heuristics to that and you get varying results.
https://www.cloudflare.com/learning/security/glossary/what-i...
Why do these speed tests start out slow and then get faster over the course of a few seconds? Is it something about the internet that means the speed changes so much over the course of the test?
TCP initially starts with a small transmission buffer (the congestion window), and gradually increases its size until it starts getting errors (packet drops or reordering).
EDIT: Apparently there is a nodejs module available https://github.com/cloudflare/speedtest Totally gonna start this project asap
I have a 250 Mb/s connection, but this claims I have over 440 Mb/s download speed. When looking closer at the details I get 250 Mb/s on all tests except the 1 MB download, so it's probably because of some compression or caching or similar, but I don't get the point of the larger tests if they don't affect the final score. I have never downloaded anything faster than 250 Mb/s before, so this is not a good reflection o…
I suspect that your line has a configured limit as opposed to physical limit of 250mb/s (perhaps the fibre equipment is capable of 500mb/s or something). I've seen this ever since I moved to fibre about 8 years ago, I've never taken the fastest packages and whenever I test on speedtest.net it always starts off exceeding my limit, then comes down to my limit over a short while. The limiter for you may very well allow…
The speed is very clearly throttled by the ISP though, they sell a faster package that I don't need. I'm not complaining, I've just never seen this burst behavior anywhere else.