Re: Raspberry Pi 3B and pitiful network speeds

From: Mark Millard via freebsd-arm <freebsd-arm_at_freebsd.org>
Date: Sun, 20 Jun 2021 20:04:02 -0700
On 2021-Jun-20, at 19:16, MJ <mafsys1234 at gmail.com> 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:

https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md
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 https://en.wikipedia.org/wiki/Raspberry_Pi .)

>> 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 yahoo.com
( dsl-only.net went
away in early 2018-Mar)
Received on Mon Jun 21 2021 - 03:04:02 UTC

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