speedtest-cli from a Pi 2B?

Mar 08, 2019 3 Replies

I'm using a Pi 2B as a lightweight home office server. The lshw output says size: 100Mbit/s and capacity: 100Mbit/s for the ethernet connection, & it's plugged into the router, which is plugged into the cable modem (both cables are fairly short).



Are there other limitations on how fast the Pi can receive data that would explain lower than expected results from speedtest-cli?



You're 100 percent correct --- it's been scientifically proven that microwaving changes the molecular structure of food. THIS IS CALLED COOKING, YOU NITWIT. ---Cecil Adams

You've not said what results you're getting....

My own tests with iperf on the early Pi's LAN to LAN showed that it could almost saturate a 100Mb connection, but remember the Pi's Ethernet is on USB which is half duplex only, so if downloading from the Interwebs and storing to a file on a USB drive will give fairly meaningless results.

-Gordon

Around 26 Mb/s downstream on what's supposed to be a 70 Mb/s connection.

Aha! That is exactly the sort of "other limitations" that I needed to know about. (The Pi in question has /boot on the SD card & everything else on an external USB drive.)

Thanks.

If an organization had to assume that anything it did would become public in a few years, people within that organization would behave differently. ---Bruce Schneier

1/. What are you measuring the speed between? 2/. What is the (sync) speed of your cable connection?
In a Time of Universal Deceit, Telling the Truth Is a Revolutionary Act. - George Orwell

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