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RPIgoodSBC

Chromium youtube videos bad performance on rpi3B+ This kernel works fine to me... pi@raspberrypi:~ $ uname -a Linux raspberrypi 4.19.25-v7+ #1205 SMP Mon Feb 25 18:19:20 GMT 2019 armv7l GNU/Linux OK but after dist-upgrade to... pi@raspberrypi:~ $ uname -a Linux raspberrypi 4.19.27-v7+ #1206 SMP Wed ...

RPIgoodSBC

More screenshots...

: 2018-07-19-dsl-reports-test-quality.png (199.49 KiB) Viewed 5791 times

: 2018-07-19-RPI3B-plus-overclocked-ram-550-and-gpu-450.png (229.63 KiB) Viewed 5791 times

RPIgoodSBC

Performance test overclocked ram=550 and gpu=450 raspberrypi 3B+ and results on gigabit ethernet youtube 1920x1080@30fps fullscreen video and downloads speeds gigabit ethernet. Linux raspberrypi 4.14.52-v7+ #1123 SMP Wed Jun 27 17:35:49 BST 2018 armv7l GNU/Linux Raspberry pi3B+ official power supply...

RPIgoodSBC

Rasp-berry good test on ethernet gigabit on Linux raspberrypi 4.14.52-v7+ ...Rpi3B+... My ISP is 200Down/20Up and I am running de pi with /boot/config.txt... arm_freq=1200 sdram_freq=450 I like less performance and stable than more fast and not stable. On 1080p youtube videos Rpi3B+ is no more than ...

RPIgoodSBC

A lot but that much better. Testing iperf3 from my bigPC to my Rpi3B+ I receive at 220 Mbps and 0 Retr. Of 10 consecutive tests the results are: 0,20,0,0,0,0,0,0,0,16 Retr. Internet download speeds measured with speedtest-cli have increased from 130 Mbps to 160 Mbps. The scandalous 3000 Retr from be...

RPIgoodSBC

iperf3 and speedtest-cli test...

: 4-2018-04-06-iperf3-speedtest-cli.png (229.54 KiB) Viewed 6336 times

RPIgoodSBC

QoS != Flow control. Have you found any options to turn flow control on or off on your router? With it turned on I would expect very few retries. I have uninstalled luci-app-qos and qos-scripts on my TP-Link router and installed and configured luci-app-sqm and sqm-scripts . See pictures below. The ...

RPIgoodSBC

@ jamesh The main conclusion we have come to - if your switch does NOT have flow control turned on, you will suffer a large drop in performance. This is due to the Pi being unable to service incoming data at gig speeds, and therefor a lot of retries are required for dropped frames. Now, desktop swit...

RPIgoodSBC

UPDATED screenshots: All the clues are on my screenshots. https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=208512&p=1294025#p1294025 The important point is that the problem appears using ethernet drivers that depend on the usb bus. In the RPi3B + (any rpi) the ethernet depends on the ...

RPIgoodSBC

---> jamesh Ok. Can you put the way to boot on 100 mode that works and edit my last comment because I have tested now and is not working. UPDATED: People like me with problems NIC on 1000 mode can do this in: /home/pi/.config/lxsession/LXDE-pi/autostart and add this... @sudo ethtool -s eth0 speed 10...

RPIgoodSBC

ejolson dixit... While 200 Mbit download may seem fine at first glance, these tests were performed using a low latency local area network. The retransmits have a much greater impact when transferring data across a high-latency connection to the internet. Exactly. All this is a consequence of the us...

RPIgoodSBC

Test people:

Code: Select all

sudo apt-get install -y iperf3

Code: Select all

iperf3 -c bouygues.iperf.fr -p 5209 -R

This server works very well.
Test on RPi3B+ and on other PC gigabit NIC.

viewtopic.php?f=63&t=208512&start=75#p1294025

RPIgoodSBC

---> Bruny...What about public servers? I think they are very saturated. I do not think they will be useful in this case, but there is a test: UPDATED...I was wrong this server works very well.But not in mi pi. pi@raspberrypi:~ $ iperf3 -c bouygues.iperf.fr -p 5209 -R Connecting to host bouygues.ipe...

RPIgoodSBC

Curious. Using netcat to transfer from an Ubuntu PC to the Pi, yes | pv -rab | nc [ip of pi] 4444 and running this on the Pi nc -l 4444 > /dev/null Gives me an average throughput of 27.5 MB/s, which is 220Mbits/s. Which seem fine to me. Can you try it to see what happens? Same test to me is... 27,1...

RPIgoodSBC

[ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 265 MBytes 222 Mbits/sec 3497 sender [ 4] 0.00-10.00 sec 265 MBytes 222 Mbits/sec receiver Don''t focus too much on retransmit values in iperf3, it''s normal that you see these when the RPi is on the receiving side. The sender will try to t...

RPIgoodSBC

Curious. Using netcat to transfer from an Ubuntu PC to the Pi, yes | pv -rab | nc [ip of pi] 4444 and running this on the Pi nc -l 4444 > /dev/null Gives me an average throughput of 27.5 MB/s, which is 220Mbits/s . Which seem fine to me. Can you try it to see what happens? About 220Mbits/s receivin...

RPIgoodSBC

---> ejolson I have limited time, now can do now can not. Here a few test: Non stress on usb buses test iperf3: - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 265 MBytes 222 Mbits/sec 3497 sender [ 4] 0.00-10.00 sec 265 MBytes 222 Mbits/s...

RPIgoodSBC

I wasn't expecting much change in overall speed performance, I've not seen improvements by turning off eee. What I have seen is that the number of drop outs went from 5 or 6 per 1.5GB transfer down to zero. So I am expecting the link to be more robust, but not faster. When we have tested for speed ...

RPIgoodSBC

Can those people experiencing drop outs or odd delays during downloads or copies, please try the following. In config.txt, add the line dtparam=eee=off And report back if the problem goes away. No change nothing an this was tested in other way in this thread. Here the results now: [ ID] Interval Tr...

RPIgoodSBC

jamesh wrote: ↑
Wed Mar 28, 2018 12:06 pm
Can those people experiencing drop outs or odd delays during downloads or copies, please try the following.

In config.txt, add the line
Code: Select all
dtparam=eee=off
And report back if the problem goes away.

I am going to test it now.

RPIgoodSBC

---> RaTTuS I can not see any problem in your code related. Command ifconfig is no the right tool to see this problem. I have similar output than you ifconfig related. You need to use iperf3 over your cable net to other PC and look at retransmits. That must be 0 in a good cable net hardware configur...

RPIgoodSBC

Bit confused. There doesn't seem to be anything wrong with those performance numbers - why do you think they are slow? >300Mbits/s seems very good. Yes sending on iperf3 is good but not receiving.That is on the problem is. Retr column is showing 3281 Retr when RPi3B+ is receiving and 0 Retr when is...

RPIgoodSBC

This can help to solve the problem... Pay attention: RPi3B+ internal gigabit NIC... pi@raspberrypi:~ $ sudo iperf3 -c XXX.XXX.X.XXX ... sending from pi to my big PC Connecting to host big PC , port 5201 [ 4] local RPi3B+ port 54914 connected to big PC port 5201 [ ID] Interval Transfer Bandwidth Retr...

RPIgoodSBC

---> jamesh

So it appears to be a RX problem on the Pi.

OK.
If you have some new compilation of raspbian with a new ethernet driver even beta tell me and try it.

RPIgoodSBC

this is on a fresh raspbian lite FYI / comparison ./speedtest-cli Retrieving speedtest.net configuration... Testing from .... Retrieving speedtest.net server list... Selecting best server based on ping... Hosted by Spitfire Network Services (London) [9.61 km]: 15.453 ms Testing download speed.........

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Chromium youtube videos bad performance on rpi3B+

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