Re: Raspberry Pi 3B and pitiful network speeds

From: Mark Millard via freebsd-arm <>
Date: Mon, 21 Jun 2021 03:04:02 UTC

On 2021-Jun-20, at 19:16, MJ <mafsys1234 at> wrote:

> On 21/06/2021 7:29 am, Denis Ovsienko wrote:
>> . . .
>> As a separate note, in my setup ifconfig tells "100baseTX
>> <full-duplex>", which is expected for RPI3B. In the original message it
>> tells "1000baseT <full-duplex>", which means the board is RPI3B+ or
> Hi Denis.
> Yes, you're correct. This is the 3B+. I apologize for misrepresenting it. It is also the earlier version board,
> Built in 2017. I think it's version 1.1 (it's in a case, I don't feel like dismantling it).

I do not have access to such for any testing, just a 3B. (Not
a reasonable comparison.) In checking on that, I ran into the
following information:
only shows one revision for 3B+:

Code	Model	Revision	RAM	Manufacturer
. . .
a020d3	3B+	1.3	1GB	Sony UK
. . .

Under RaspiOS the revision code shows up via: cat /proc/cpuinfo

It was released in 2018. (See .)

>> RPI4B. So another useful thing to do in addition to the method above
>> would be to identify the model exactly and to double-check the earlier
>> test results (Mb/s or MB/s).
> Again, sorry, misspelling. The figures are in megabytes. So, on the Devuan, I can consistently obtain 18.x megabytes transfer using FTP or Samba. On FreeBSD it's lucky to top 10.
> I have also stepped up the CPU frequency to 1400, but this makes no discernible difference.
> The copying, when running Devuan, achieves the same speeds regardless of whether the input is from the SD card or an attached USB (Sandisk Extreme 128GB 3.1).
> The power supply is official raspberry pi. The case has a fan, it is set for 50degC turn on (via GPIO). For FreeBSD there is not even an attached USB; nothing is on that bus.

Mark Millard
marklmi at
( went
away in early 2018-Mar)