freebsd-arm Digest, Vol 740, Issue 7 (Rock64 Ethernet testing)
Sleep Walker
s199p.wa1k9r at gmail.com
Tue Jul 7 07:43:23 UTC 2020
Hi!
On Khadas-EDGE-V
ot at khadas-edge-v:~ # sysctl dev.cpu.0.freq
dev.cpu.0.freq: 1416
root at khadas-edge-v:~ # uname -aUK
FreeBSD khadas-edge-v 13.0-CURRENT FreeBSD 13.0-CURRENT #0 r362798M
0fb6ad5-c996(nanopi): Tue Jun 30 19:44:09 MSK 2020
root at dev.kubsu.ru:/usr/crochet/work/obj/usr/crochet/src-13.0/arm64.aarch64/sys/FREENAS
arm64 1300100 1300100
root at khadas-edge-v:~ # iperf3 -c 192.168.1.100
Connecting to host 192.168.1.100, port 5201
[ 5] local 192.168.1.101 port 26993 connected to 192.168.1.100 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 57.4 MBytes 481 Mbits/sec 0 144 KBytes
[ 5] 1.00-2.00 sec 56.8 MBytes 476 Mbits/sec 0 161 KBytes
[ 5] 2.00-3.00 sec 56.8 MBytes 476 Mbits/sec 0 161 KBytes
[ 5] 3.00-4.00 sec 56.8 MBytes 476 Mbits/sec 0 161 KBytes
[ 5] 4.00-5.00 sec 56.8 MBytes 476 Mbits/sec 0 161 KBytes
[ 5] 5.00-6.00 sec 56.8 MBytes 476 Mbits/sec 0 161 KBytes
[ 5] 6.00-7.00 sec 56.8 MBytes 476 Mbits/sec 0 175 KBytes
[ 5] 7.00-8.00 sec 56.8 MBytes 476 Mbits/sec 0 175 KBytes
[ 5] 8.00-9.00 sec 56.8 MBytes 476 Mbits/sec 0 175 KBytes
[ 5] 9.00-10.00 sec 56.8 MBytes 476 Mbits/sec 0 175 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 568 MBytes 477 Mbits/sec 0 sender
[ 5] 0.00-10.34 sec 568 MBytes 461 Mbits/sec
receiver
iperf Done.
root at khadas-edge-v:~ # iperf3 -R -c 192.168.1.100
Connecting to host 192.168.1.100, port 5201
Reverse mode, remote host 192.168.1.100 is sending
[ 5] local 192.168.1.101 port 45336 connected to 192.168.1.100 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.01 sec 4.65 MBytes 38.5 Mbits/sec
[ 5] 1.01-2.01 sec 9.39 MBytes 79.3 Mbits/sec
[ 5] 2.01-3.00 sec 6.15 MBytes 51.8 Mbits/sec
[ 5] 3.00-4.01 sec 5.79 MBytes 48.0 Mbits/sec
[ 5] 4.01-5.01 sec 2.75 MBytes 23.1 Mbits/sec
[ 5] 5.01-6.00 sec 6.84 MBytes 57.7 Mbits/sec
[ 5] 6.00-7.00 sec 2.01 MBytes 16.9 Mbits/sec
[ 5] 7.00-8.01 sec 1.97 MBytes 16.4 Mbits/sec
[ 5] 8.01-9.01 sec 2.06 MBytes 17.3 Mbits/sec
[ 5] 9.01-10.00 sec 1.69 MBytes 14.3 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.34 sec 43.4 MBytes 35.2 Mbits/sec 1636
sender
[ 5] 0.00-10.00 sec 43.3 MBytes 36.3 Mbits/sec
receiver
iperf Done.
root at khadas-edge-v:~ # iperf3 -u -c 192.168.1.100
Connecting to host 192.168.1.100, port 5201
[ 5] local 192.168.1.101 port 52129 connected to 192.168.1.100 port 5201
[ ID] Interval Transfer Bitrate Total Datagrams
[ 5] 0.00-1.00 sec 128 KBytes 1.05 Mbits/sec 90
[ 5] 1.00-2.00 sec 128 KBytes 1.05 Mbits/sec 90
[ 5] 2.00-3.00 sec 128 KBytes 1.05 Mbits/sec 90
[ 5] 3.00-4.00 sec 128 KBytes 1.05 Mbits/sec 90
[ 5] 4.00-5.00 sec 127 KBytes 1.04 Mbits/sec 89
[ 5] 5.00-6.00 sec 128 KBytes 1.05 Mbits/sec 90
[ 5] 6.00-7.00 sec 128 KBytes 1.05 Mbits/sec 90
[ 5] 7.00-8.00 sec 128 KBytes 1.05 Mbits/sec 90
[ 5] 8.00-9.00 sec 127 KBytes 1.04 Mbits/sec 89
[ 5] 9.00-10.00 sec 128 KBytes 1.05 Mbits/sec 90
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Jitter Lost/Total
Datagrams
[ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.000 ms 0/898 (0%)
sender
[ 5] 0.00-10.04 sec 1.25 MBytes 1.04 Mbits/sec 0.007 ms 0/898 (0%)
receiver
iperf Done.
root at khadas-edge-v:~ # iperf3 -R -u -c 192.168.1.100
Connecting to host 192.168.1.100, port 5201
Reverse mode, remote host 192.168.1.100 is sending
[ 5] local 192.168.1.101 port 39861 connected to 192.168.1.100 port 5201
[ ID] Interval Transfer Bitrate Jitter Lost/Total
Datagrams
[ 5] 0.00-1.00 sec 134 KBytes 1.10 Mbits/sec 0.013 ms 0/94 (0%)
[ 5] 1.00-2.00 sec 127 KBytes 1.04 Mbits/sec 0.008 ms 0/89 (0%)
[ 5] 2.00-3.00 sec 128 KBytes 1.05 Mbits/sec 0.008 ms 0/90 (0%)
[ 5] 3.00-4.00 sec 128 KBytes 1.05 Mbits/sec 0.004 ms 0/90 (0%)
[ 5] 4.00-5.00 sec 128 KBytes 1.05 Mbits/sec 0.008 ms 0/90 (0%)
[ 5] 5.00-6.00 sec 127 KBytes 1.04 Mbits/sec 0.004 ms 0/89 (0%)
[ 5] 6.00-7.00 sec 128 KBytes 1.05 Mbits/sec 0.005 ms 0/90 (0%)
[ 5] 7.00-8.00 sec 128 KBytes 1.05 Mbits/sec 0.004 ms 0/90 (0%)
[ 5] 8.00-9.00 sec 128 KBytes 1.05 Mbits/sec 0.004 ms 0/90 (0%)
[ 5] 9.00-10.00 sec 127 KBytes 1.04 Mbits/sec 0.049 ms 0/89 (0%)
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Jitter Lost/Total
Datagrams
[ 5] 0.00-10.04 sec 1.25 MBytes 1.05 Mbits/sec 0.000 ms 0/901 (0%)
sender
[ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.049 ms 0/901 (0%)
receiver
iperf Done.
root at khadas-edge-v:~ #
вт, 7 июл. 2020 г. в 10:16, Sleep Walker <s199p.wa1k9r at gmail.com>:
> Hi!
>
> On NanoPC-T4 r361538 nodebug
>
> root at freenas:~ # uname -aUK
> FreeBSD freenas 13.0-CURRENT FreeBSD 13.0-CURRENT #0 r361538: Tue May 26
> 23:53:06 MSK 2020 root at freenas:/usr/obj/usr/src/arm64.aarch64/sys/FREENAS
> arm64 1300096 1300096
> root at freenas:~ # iperf3 -c 192.168.1.100
> Connecting to host 192.168.1.100, port 5201
> [ 5] local 192.168.1.101 port 55179 connected to 192.168.1.100 port 5201
> [ ID] Interval Transfer Bitrate Retr Cwnd
> [ 5] 0.00-1.00 sec 60.4 MBytes 507 Mbits/sec 0 161 KBytes
>
> [ 5] 1.00-2.00 sec 59.9 MBytes 503 Mbits/sec 0 161 KBytes
>
> [ 5] 2.00-3.00 sec 59.9 MBytes 503 Mbits/sec 0 161 KBytes
>
> [ 5] 3.00-4.00 sec 59.9 MBytes 503 Mbits/sec 0 161 KBytes
>
> [ 5] 4.00-5.00 sec 59.9 MBytes 503 Mbits/sec 0 161 KBytes
>
> [ 5] 5.00-6.00 sec 59.9 MBytes 503 Mbits/sec 0 161 KBytes
>
> [ 5] 6.00-7.00 sec 59.9 MBytes 503 Mbits/sec 0 161 KBytes
>
> [ 5] 7.00-8.00 sec 59.9 MBytes 503 Mbits/sec 0 161 KBytes
>
> [ 5] 8.00-9.00 sec 59.9 MBytes 503 Mbits/sec 0 161 KBytes
>
> [ 5] 9.00-10.00 sec 59.9 MBytes 503 Mbits/sec 0 175 KBytes
>
> - - - - - - - - - - - - - - - - - - - - - - - - -
> [ ID] Interval Transfer Bitrate Retr
> [ 5] 0.00-10.00 sec 600 MBytes 503 Mbits/sec 0
> sender
> [ 5] 0.00-10.34 sec 599 MBytes 486 Mbits/sec
> receiver
>
> iperf Done.
> root at freenas:~ # iperf3 -R -c 192.168.1.100
> Connecting to host 192.168.1.100, port 5201
> Reverse mode, remote host 192.168.1.100 is sending
> [ 5] local 192.168.1.101 port 40284 connected to 192.168.1.100 port 5201
> [ ID] Interval Transfer Bitrate
> [ 5] 0.00-1.01 sec 3.11 MBytes 26.0 Mbits/sec
> [ 5] 1.01-2.01 sec 2.77 MBytes 23.1 Mbits/sec
> [ 5] 2.01-3.01 sec 3.22 MBytes 27.1 Mbits/sec
> [ 5] 3.01-4.01 sec 2.34 MBytes 19.7 Mbits/sec
> [ 5] 4.01-5.00 sec 4.55 MBytes 38.5 Mbits/sec
> [ 5] 5.00-6.01 sec 4.88 MBytes 40.5 Mbits/sec
> [ 5] 6.01-7.01 sec 3.72 MBytes 31.3 Mbits/sec
> [ 5] 7.01-8.01 sec 3.80 MBytes 31.9 Mbits/sec
> [ 5] 8.01-9.00 sec 1.73 MBytes 14.6 Mbits/sec
> [ 5] 9.00-10.00 sec 1.18 MBytes 9.97 Mbits/sec
> - - - - - - - - - - - - - - - - - - - - - - - - -
> [ ID] Interval Transfer Bitrate Retr
> [ 5] 0.00-10.34 sec 31.4 MBytes 25.5 Mbits/sec 1100
> sender
> [ 5] 0.00-10.00 sec 31.3 MBytes 26.3 Mbits/sec
> receiver
>
> iperf Done.
> root at freenas:~ # iperf3 -u -c 192.168.1.100
> Connecting to host 192.168.1.100, port 5201
> [ 5] local 192.168.1.101 port 30151 connected to 192.168.1.100 port 5201
> [ ID] Interval Transfer Bitrate Total Datagrams
> [ 5] 0.00-1.00 sec 128 KBytes 1.05 Mbits/sec 90
> [ 5] 1.00-2.00 sec 128 KBytes 1.05 Mbits/sec 90
> [ 5] 2.00-3.00 sec 128 KBytes 1.05 Mbits/sec 90
> [ 5] 3.00-4.00 sec 128 KBytes 1.05 Mbits/sec 90
> [ 5] 4.00-5.00 sec 127 KBytes 1.04 Mbits/sec 89
> [ 5] 5.00-6.00 sec 128 KBytes 1.05 Mbits/sec 90
> [ 5] 6.00-7.00 sec 128 KBytes 1.05 Mbits/sec 90
> [ 5] 7.00-8.00 sec 128 KBytes 1.05 Mbits/sec 90
> [ 5] 8.00-9.00 sec 127 KBytes 1.04 Mbits/sec 89
> [ 5] 9.00-10.00 sec 128 KBytes 1.05 Mbits/sec 90
> - - - - - - - - - - - - - - - - - - - - - - - - -
> [ ID] Interval Transfer Bitrate Jitter Lost/Total
> Datagrams
> [ 5] 0.00-10.00 sec 1.25 MBytes 1.05 Mbits/sec 0.000 ms 0/898 (0%)
> sender
> [ 5] 0.00-10.04 sec 1.25 MBytes 1.04 Mbits/sec 0.025 ms 0/898 (0%)
> receiver
>
> iperf Done.
> root at freenas:~ # iperf3 -R -u -c 192.168.1.100
> Connecting to host 192.168.1.100, port 5201
> Reverse mode, remote host 192.168.1.100 is sending
> [ 5] local 192.168.1.101 port 13018 connected to 192.168.1.100 port 5201
> [ ID] Interval Transfer Bitrate Jitter Lost/Total
> Datagrams
> [ 5] 0.00-1.00 sec 134 KBytes 1.10 Mbits/sec 0.012 ms 0/94 (0%)
> [ 5] 1.00-2.00 sec 128 KBytes 1.05 Mbits/sec 0.004 ms 0/90 (0%)
> [ 5] 2.00-3.00 sec 127 KBytes 1.04 Mbits/sec 0.003 ms 0/89 (0%)
> [ 5] 3.00-4.00 sec 128 KBytes 1.05 Mbits/sec 0.007 ms 0/90 (0%)
> [ 5] 4.00-5.00 sec 128 KBytes 1.05 Mbits/sec 0.004 ms 0/90 (0%)
> [ 5] 5.00-6.00 sec 128 KBytes 1.05 Mbits/sec 0.006 ms 0/90 (0%)
> [ 5] 6.00-7.00 sec 127 KBytes 1.04 Mbits/sec 0.005 ms 0/89 (0%)
> [ 5] 7.00-8.00 sec 128 KBytes 1.05 Mbits/sec 0.009 ms 0/90 (0%)
> [ 5] 8.00-9.00 sec 128 KBytes 1.05 Mbits/sec 0.006 ms 0/90 (0%)
> [ 5] 9.00-10.00 sec 128 KBytes 1.05 Mbits/sec 0.008 ms 0/90 (0%)
> - - - - - - - - - - - - - - - - - - - - - - - - -
> [ ID] Interval Transfer Bitrate Jitter Lost/Total
> Datagrams
> [ 5] 0.00-10.04 sec 1.26 MBytes 1.05 Mbits/sec 0.000 ms 0/902 (0%)
> sender
> [ 5] 0.00-10.00 sec 1.26 MBytes 1.05 Mbits/sec 0.008 ms 0/902 (0%)
> receiver
>
> iperf Done.
> root at freenas:~ #
>
> вт, 7 июл. 2020 г. в 09:44, Mark Millard via freebsd-arm <
> freebsd-arm at freebsd.org>:
>
>>
>>
>> On 2020-Jul-6, at 23:22, Mark Millard <marklmi at yahoo.com> wrote:
>>
>> > 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:
>> >>
>> >>> On 2020-Jul-6, at 13:47, Oleksandr Tymoshenko <gonzo at bluezbox.com>
>> wrote:
>> >>>
>> >>>> Furkan Salman (furkan at fkardame.com) wrote:
>> >>>>> Hello Peter,
>> >>>>>
>> >>>>> 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.
>> >>>>
>> >>>>
>> >>>> Hi Furkan,
>> >>>>
>> >>>> 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.
>> >>>
>> >>> 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.
>> >>>
>> >>> 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.
>> >>
>> >> 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.
>> >>
>> >> It did DHCP to pick up an address just fine during
>> >> the boot. I ssh'd into it just fine after the boot.
>> >>
>> >> # uname -apKU
>> >> FreeBSD Rock64orRPi4 13.0-CURRENT FreeBSD 13.0-CURRENT #0 r362982: Tue
>> Jul 7 03:41:02 UTC 2020
>> root at FreeBSD-head-aarch64-build.jail.ci.FreeBSD.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC
>> arm64 aarch64 1300100 1300092
>> >>
>> >> # ifconfig
>> >> dwc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
>> 1500
>> >> options=80008<VLAN_MTU,LINKSTATE>
>> >> ether #
>> >> hwaddr #
>> >> inet # netmask # broadcast #
>> >> media: Ethernet autoselect (1000baseT <full-duplex>)
>> >> status: active
>> >> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>> >> . . .
>> >>
>> >> I'll note that the Rock64 is the only thing running a debug
>> >> kernel for this note.
>> >>
>> >> An rsync copying an approximately 4 GiByte tar file to the Rock64
>> >> reported:
>> >>
>> >> # rsync -axHh --info=progress2 --delete -r
>> /usr/obj/clang-cortexA53-installworld-poud.tar X at Y:/tmp/
>> >>
>> >> 4.01G 100% 28.91MB/s 0:02:12 (xfr#1, to-chk=0/1)
>> >>
>> >> 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.
>> >>
>> >> For reference, locally duplicating the file on the Rock64 via
>> >> rsync reported:
>> >>
>> >> # rsync -axHh --info=progress2 -r
>> /tmp/clang-cortexA53-installworld-poud.tar /tmp/mmjnk.tar
>> >> 4.01G 100% 38.48MB/s 0:01:39 (xfr#1, to-chk=0/1)
>> >>
>> >> (from/to: same media). I do not expect that the rsync over the
>> >> network was limited by the target media on the Rock64.
>> >>
>> >> Copying from the same machine to a large, fast machine instead
>> >> of to the Rock64:
>> >>
>> >> # rsync -axHh --info=progress2 --delete -r
>> /usr/obj/clang-cortexA53-installworld-poud.tar X at Y:/tmp/
>> >> 4.01G 100% 77.32MB/s 0:00:49 (xfr#1, to-chk=0/1)
>> >>
>> >> So that should not be the side constraining the to-Rock64
>> >> rate.
>> >>
>> >> Copying from the Rock64 to the large, fast machine:
>> >>
>> >> rsync -axHh --info=progress2 --delete -r
>> /tmp/clang-cortexA53-installworld-poud.tar X at Y:/tmp/
>> >> 4.01G 100% 21.35MB/s 0:02:59 (xfr#1, to-chk=0/1)
>> >>
>> >> It did not list figures much higher than above, so slower than
>> >> the copy to the Rock64 fairly generally.
>> >>
>> >> 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.
>> >>
>> >> I hope that the above helps.
>> >>
>> >> 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.
>> >>
>> >
>> > 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
>> > [ 5] 1.00-2.00 sec 45.4 MBytes 380 Mbits/sec 0 730
>> KBytes
>> > [ 5] 2.00-3.00 sec 44.9 MBytes 376 Mbits/sec 0 730
>> KBytes
>> > [ 5] 3.00-4.00 sec 45.3 MBytes 380 Mbits/sec 0 730
>> KBytes
>> > [ 5] 4.00-5.00 sec 44.7 MBytes 375 Mbits/sec 0 730
>> KBytes
>> > [ 5] 5.00-6.00 sec 45.2 MBytes 378 Mbits/sec 0 730
>> KBytes
>> > [ 5] 6.00-7.00 sec 44.7 MBytes 376 Mbits/sec 0 730
>> KBytes
>> > [ 5] 7.00-8.00 sec 44.6 MBytes 374 Mbits/sec 0 730
>> KBytes
>> > [ 5] 8.00-9.00 sec 44.7 MBytes 375 Mbits/sec 0 730
>> KBytes
>> > [ 5] 9.00-10.00 sec 45.3 MBytes 380 Mbits/sec 0 730
>> KBytes
>> > - - - - - - - - - - - - - - - - - - - - - - - - -
>> > [ 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
>> > [ 5] 1.00-2.00 sec 61.3 MBytes 514 Mbits/sec
>> > [ 5] 2.00-3.00 sec 61.3 MBytes 515 Mbits/sec
>> > [ 5] 3.00-4.00 sec 61.4 MBytes 515 Mbits/sec
>> > [ 5] 4.00-5.00 sec 61.4 MBytes 515 Mbits/sec
>> > [ 5] 5.00-6.00 sec 61.2 MBytes 513 Mbits/sec
>> > [ 5] 6.00-7.00 sec 61.4 MBytes 515 Mbits/sec
>> > [ 5] 7.00-8.00 sec 61.3 MBytes 514 Mbits/sec
>> > [ 5] 8.00-9.00 sec 61.4 MBytes 515 Mbits/sec
>> > [ 5] 9.00-10.00 sec 61.3 MBytes 514 Mbits/sec
>> > - - - - - - - - - - - - - - - - - - - - - - - - -
>> > [ 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=1200
>> >
>> > 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.
>>
>> Looks like it will be some time before I deal with
>> updating to a more modern kernel/world (non-debug).
>>
>> But I switched back to my non-debug head -r360311
>> kernel (and dtb) build and here are the iperf3
>> results for that context:
>>
>> # iperf3 -c 192.168.1.122
>> Connecting to host 192.168.1.122, port 5201
>> [ 5] local 192.168.1.109 port 39541 connected to 192.168.1.122 port 5201
>> [ ID] Interval Transfer Bitrate Retr Cwnd
>> [ 5] 0.00-1.00 sec 73.6 MBytes 617 Mbits/sec 0 1.07 MBytes
>>
>> [ 5] 1.00-2.00 sec 72.9 MBytes 612 Mbits/sec 0 1.60 MBytes
>>
>> [ 5] 2.00-3.00 sec 72.9 MBytes 611 Mbits/sec 0 1.60 MBytes
>>
>> [ 5] 3.00-4.00 sec 72.8 MBytes 611 Mbits/sec 0 1.60 MBytes
>>
>> [ 5] 4.00-5.00 sec 72.9 MBytes 611 Mbits/sec 0 1.60 MBytes
>>
>> [ 5] 5.00-6.00 sec 72.9 MBytes 611 Mbits/sec 0 1.60 MBytes
>>
>> [ 5] 6.00-7.00 sec 72.7 MBytes 610 Mbits/sec 0 1.60 MBytes
>>
>> [ 5] 7.00-8.00 sec 72.8 MBytes 610 Mbits/sec 0 1.60 MBytes
>>
>> [ 5] 8.00-9.00 sec 72.8 MBytes 611 Mbits/sec 0 1.60 MBytes
>>
>> [ 5] 9.00-10.00 sec 72.8 MBytes 610 Mbits/sec 0 1.60 MBytes
>>
>> - - - - - - - - - - - - - - - - - - - - - - - - -
>> [ ID] Interval Transfer Bitrate Retr
>> [ 5] 0.00-10.00 sec 729 MBytes 611 Mbits/sec 0
>> sender
>> [ 5] 0.00-10.32 sec 729 MBytes 593 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 50696 connected to 192.168.1.122 port 5201
>> [ ID] Interval Transfer Bitrate
>> [ 5] 0.00-1.00 sec 112 MBytes 941 Mbits/sec
>> [ 5] 1.00-2.00 sec 112 MBytes 942 Mbits/sec
>> [ 5] 2.00-3.00 sec 112 MBytes 941 Mbits/sec
>> [ 5] 3.00-4.00 sec 84.4 MBytes 708 Mbits/sec
>> [ 5] 4.00-5.00 sec 112 MBytes 941 Mbits/sec
>> [ 5] 5.00-6.00 sec 112 MBytes 941 Mbits/sec
>> [ 5] 6.00-7.00 sec 112 MBytes 941 Mbits/sec
>> [ 5] 7.00-8.00 sec 112 MBytes 941 Mbits/sec
>> [ 5] 8.00-9.00 sec 112 MBytes 941 Mbits/sec
>> [ 5] 9.00-10.00 sec 112 MBytes 941 Mbits/sec
>> - - - - - - - - - - - - - - - - - - - - - - - - -
>> [ ID] Interval Transfer Bitrate Retr
>> [ 5] 0.00-10.31 sec 1.07 GBytes 892 Mbits/sec 55
>> sender
>> [ 5] 0.00-10.00 sec 1.07 GBytes 918 Mbits/sec
>> receiver
>>
>>
>> ===
>> Mark Millard
>> marklmi at yahoo.com
>> ( dsl-only.net went
>> away in early 2018-Mar)
>>
>> _______________________________________________
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