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Date:      Sun, 20 Jun 2021 20:04:02 -0700
From:      Mark Millard via freebsd-arm <freebsd-arm@freebsd.org>
To:        MJ <mafsys1234@gmail.com>
Cc:        freebsd-arm@freebsd.org
Subject:   Re: Raspberry Pi 3B and pitiful network speeds
Message-ID:  <6B4F2FB6-ABA1-4CFA-BE2A-6A466C30FF02@yahoo.com>
In-Reply-To: <3fa3f2a6-8560-f413-b2eb-5c172ce025eb@gmail.com>
References:  <fcd91ac5-c807-3409-d1b6-a41ba6fdc362@gmail.com> <20210620144513.1f91a68f@basepc> <169baf0b-3f3c-f1dc-4a6f-b8a0ef863f51@denninger.net> <20210620154105.0c83bbcc@basepc> <20210620222922.51da1818@basepc> <3fa3f2a6-8560-f413-b2eb-5c172ce025eb@gmail.com>

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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
>=20
>=20
> Hi Denis.
>=20
> Yes, you're correct. This is the 3B+. I apologize for misrepresenting =
it. It is also the earlier version board,
>=20
> 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-co=
des/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).
>=20
> 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.
>=20
> I have also stepped up the CPU frequency to 1400, but this makes no =
discernible difference.
>=20
> 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).
>=20
> 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.
>=20


=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)




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