Ubuntu 20.04 and slow speedtest-cli

[Sorin Srbu]

On Wed, 2023-12-13 at 13:42 -0500, Jerry Geis wrote:
> I run speedtest-cli and only get 34Mbit/s - my connection should be like
> 1G or close to it.
> 
> This is on a NUC-i3
> lspci
> 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (10)
> I219-V
> 
> uname -a 
> 5.15.0-89-generic #99-Ubuntu SMP Mon Oct 30 20:42:41 UTC 2023 x86_64
> x86_64 x86_64 GNU/Linux
> 
> ethtool eno1 shows
>  Speed: 1000Mb/s
> 
> On another laptop on the network I get speedtest.net of 932M
> 
> Why is the NUC-i3 so slow on the network? It supposed to be a 1G network
> interface.

Hello,

This NUC-i3 computer is based off of an Intel i3, an entry level point cpu,
correct?

My experience is that low-powered cpus can rarely keep up with saturating a
gigabit network interface (NIC). In fact, what I've seen during the years is
that the more powerful a cpu is, the more it can help throughput to the NIC.

What you see with your NUC is most probably the max performance network-wise
it can achieve.

As usual, YMMV.


-- 
Sorin Srbu
Drifttekniker, Serverdrift
Karolinska Institutet Universitetsbibliotek
Enheten för teknikstöd och bildproduktion,
Avdelningen för Verksamhetsstöd
Tele: 08-524 84166


# They say you can't buy happiness, but you can buy a 
# motorcycle, and that's pretty damn close!

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