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Date:      Mon, 6 Jul 2020 23:22:18 -0700
From:      Mark Millard <marklmi@yahoo.com>
To:        Oleksandr Tymoshenko <gonzo@bluezbox.com>, Peter Jeremy <peter@rulingia.com>
Cc:        freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: freebsd-arm Digest, Vol 740, Issue 7 (Rock64 Ethernet testing)
Message-ID:  <EB92D6CC-940A-4429-A257-7D17955B8379@yahoo.com>
In-Reply-To: <0C77695E-A9D0-410A-B105-5B69823E17E2@yahoo.com>
References:  <mailman.75.1593950402.45034.freebsd-arm@freebsd.org> <1731fbded28.10a3342f0357159.8148813293316485882@fkardame.com> <20200706204707.GA94158@bluezbox.com> <0A2E974E-39D3-46C8-8791-3BD914EBE7E9@yahoo.com> <0C77695E-A9D0-410A-B105-5B69823E17E2@yahoo.com>

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On 2020-Jul-6, at 23:03, Mark Millard <marklmi at yahoo.com> wrote:


> On 2020-Jul-6, at 14:21, Mark Millard <marklmi at yahoo.com> wrote:
>=20
>> On 2020-Jul-6, at 13:47, Oleksandr Tymoshenko <gonzo at bluezbox.com> =
wrote:
>>=20
>>> Furkan Salman (furkan@fkardame.com) wrote:
>>>> Hello Peter,
>>>>=20
>>>> I have rockpiE which is somewhat similar to Rock64, If s133pwa1k9r@ =
or gonzo@ can confirm if rockpie can be used to test RK3328 Lan issue =
then I am happy to help with testing.
>>>=20
>>>=20
>>> Hi Furkan,
>>>=20
>>> Yes, RockPi E seems to be a good test target. If you could check the
>>> GigE interface before and after the patch. Whether it works/doesn't =
work
>>> and if it works in both cases - try testing performance with iperf3,
>>> just to see if performance was affected in any way.
>>=20
>> For folks not familiar with the general type of activity
>> or specifically with iperf3 (or other specifics), more
>> detailed information to "collect and report . . ., collecting
>> the information via the commands .  . ." could help: more
>> step-by-step.
>>=20
>> Also: Do you care between debug kernels vs. non-debug
>> kernels? Debug ones of the appropriate vintage for head
>> are available via artifacts.ci.freebsd.org but there
>> might be performance consequences to using such.
>=20
> I put a copy of the -r362982 *debug* kernel from
> artifacts.ci.freebsd.org on the Rock64 V2.0 that
> I sometimes have access to. There are no hardware
> mods to the Rock64 V2.0.
>=20
> It did DHCP to pick up an address just fine during
> the boot. I ssh'd into it just fine after the boot.
>=20
> # uname -apKU
> FreeBSD Rock64orRPi4 13.0-CURRENT FreeBSD 13.0-CURRENT #0 r362982: Tue =
Jul  7 03:41:02 UTC 2020     =
root@FreeBSD-head-aarch64-build.jail.ci.FreeBSD.org:/usr/obj/usr/src/arm64=
.aarch64/sys/GENERIC  arm64 aarch64 1300100 1300092
>=20
> # ifconfig
> dwc0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 =
mtu 1500
>        options=3D80008<VLAN_MTU,LINKSTATE>
>        ether #
>        hwaddr #
>        inet # netmask # broadcast #
>        media: Ethernet autoselect (1000baseT <full-duplex>)
>        status: active
>        nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> . . .
>=20
> I'll note that the Rock64 is the only thing running a debug
> kernel for this note.
>=20
> An rsync copying an approximately 4 GiByte tar file to the Rock64
> reported:
>=20
> # rsync -axHh --info=3Dprogress2 --delete -r =
/usr/obj/clang-cortexA53-installworld-poud.tar X@Y:/tmp/
>=20
>          4.01G 100%   28.91MB/s    0:02:12 (xfr#1, to-chk=3D0/1)
>=20
> I'll note that at times it listed over 32MB/s. The storage media
> is a USB3 SSD plugged into the USB3 port. It has the Rock64's
> root filesystem.
>=20
> For reference, locally duplicating the file on the Rock64 via
> rsync reported:
>=20
> # rsync -axHh --info=3Dprogress2 -r =
/tmp/clang-cortexA53-installworld-poud.tar /tmp/mmjnk.tar
>          4.01G 100%   38.48MB/s    0:01:39 (xfr#1, to-chk=3D0/1)
>=20
> (from/to: same media). I do not expect that the rsync over the
> network was limited by the target media on the Rock64.
>=20
> Copying from the same machine to a large, fast machine instead
> of to the Rock64:
>=20
> # rsync -axHh --info=3Dprogress2 --delete -r =
/usr/obj/clang-cortexA53-installworld-poud.tar X@Y:/tmp/
>          4.01G 100%   77.32MB/s    0:00:49 (xfr#1, to-chk=3D0/1)
>=20
> So that should not be the side constraining the to-Rock64
> rate.
>=20
> Copying from the Rock64 to the large, fast machine:
>=20
> rsync -axHh --info=3Dprogress2 --delete -r =
/tmp/clang-cortexA53-installworld-poud.tar X@Y:/tmp/
>          4.01G 100%   21.35MB/s    0:02:59 (xfr#1, to-chk=3D0/1)
>=20
> It did not list figures much higher than above, so slower than
> the copy to the Rock64 fairly generally.
>=20
> All this activity is over the local network, nothing remote.
> All machines were running head -r360311 (non-debug), except
> for the Rock64 having the -r362982 *debug* kernel instead.=20
>=20
> I hope that the above helps.
>=20
> I see that there are now iperf3 usage instructions so at some
> point I may get that going and report the results, including
> doing a non-debug kernel build and install.
>=20

Still using the debug kernel, but I figured I'd show
the results from proving that I can get iperf3 to do
the requested type of testing:

# iperf3 -c 192.168.1.122
Connecting to host 192.168.1.122, port 5201
[  5] local 192.168.1.109 port 17015 connected to 192.168.1.122 port =
5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  45.4 MBytes   381 Mbits/sec    0    730 KBytes  =
    =20
[  5]   1.00-2.00   sec  45.4 MBytes   380 Mbits/sec    0    730 KBytes  =
    =20
[  5]   2.00-3.00   sec  44.9 MBytes   376 Mbits/sec    0    730 KBytes  =
    =20
[  5]   3.00-4.00   sec  45.3 MBytes   380 Mbits/sec    0    730 KBytes  =
    =20
[  5]   4.00-5.00   sec  44.7 MBytes   375 Mbits/sec    0    730 KBytes  =
    =20
[  5]   5.00-6.00   sec  45.2 MBytes   378 Mbits/sec    0    730 KBytes  =
    =20
[  5]   6.00-7.00   sec  44.7 MBytes   376 Mbits/sec    0    730 KBytes  =
    =20
[  5]   7.00-8.00   sec  44.6 MBytes   374 Mbits/sec    0    730 KBytes  =
    =20
[  5]   8.00-9.00   sec  44.7 MBytes   375 Mbits/sec    0    730 KBytes  =
    =20
[  5]   9.00-10.00  sec  45.3 MBytes   380 Mbits/sec    0    730 KBytes  =
    =20
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   450 MBytes   377 Mbits/sec    0             =
sender
[  5]   0.00-10.62  sec   450 MBytes   355 Mbits/sec                  =
receiver

# iperf3 -R -c 192.168.1.122
Connecting to host 192.168.1.122, port 5201
Reverse mode, remote host 192.168.1.122 is sending
[  5] local 192.168.1.109 port 54738 connected to 192.168.1.122 port =
5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  61.4 MBytes   515 Mbits/sec                 =20
[  5]   1.00-2.00   sec  61.3 MBytes   514 Mbits/sec                 =20
[  5]   2.00-3.00   sec  61.3 MBytes   515 Mbits/sec                 =20
[  5]   3.00-4.00   sec  61.4 MBytes   515 Mbits/sec                 =20
[  5]   4.00-5.00   sec  61.4 MBytes   515 Mbits/sec                 =20
[  5]   5.00-6.00   sec  61.2 MBytes   513 Mbits/sec                 =20
[  5]   6.00-7.00   sec  61.4 MBytes   515 Mbits/sec                 =20
[  5]   7.00-8.00   sec  61.3 MBytes   514 Mbits/sec                 =20
[  5]   8.00-9.00   sec  61.4 MBytes   515 Mbits/sec                 =20
[  5]   9.00-10.00  sec  61.3 MBytes   514 Mbits/sec                 =20
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.61  sec   614 MBytes   486 Mbits/sec   28             =
sender
[  5]   0.00-10.00  sec   613 MBytes   515 Mbits/sec                  =
receiver

I'll note that I run with the following in /etc/sysctl.conf :

# The Rock64 does not seem to automatically adjust from 600MHz,
# so do so manually. (The specifics likely would not be
# appropriate to the RPi4/3.)
dev.cpu.0.freq=3D1200

It is a historical artifact that I've not checked on the
status of in a very long time: it works so I leave it
there.

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




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