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by RPIgoodSBC
Fri Apr 12, 2019 12:26 pm
Forum: General discussion
Topic: Chromium youtube videos bad performance on rpi3B+
Replies: 16
Views: 1594

Re: Chromium youtube videos bad performance on rpi3B+

Another update: The old version may have used memcpys whereas the new version uses DMA. Although DMA copies reduced the CPU usage, they seem to be a little slower. Going back to memcpy seems to improve video playback and the expense of higher CPU usage, which may not be a good trade-off on armv6 pi...
by RPIgoodSBC
Fri Apr 12, 2019 12:26 pm
Forum: General discussion
Topic: Chromium youtube videos bad performance on rpi3B+
Replies: 16
Views: 1594

Re: Chromium youtube videos bad performance on rpi3B+

It's looking more and more like change in upstream chromium rather than anything related to the mmal patches. We'll keep looking into it, but it's not looking promising. Perhaps it would be possible to give the possibility of installing from the Raspbian repository the version of chromium 65 for th...
by RPIgoodSBC
Thu Apr 11, 2019 12:21 pm
Forum: General discussion
Topic: Chromium youtube videos bad performance on rpi3B+
Replies: 16
Views: 1594

Re: Chromium youtube videos bad performance on rpi3B+

Are you using the legacy, fkms or kms drivers? If you're not sure, can you post your config.txt? Legacy drivers. Default drivers on Raspbian. Here my /boot/config.txt... # For more options and information see # http://rpf.io/configtxt # Some settings may impact device functionality. See link above ...
by RPIgoodSBC
Thu Apr 11, 2019 12:18 pm
Forum: General discussion
Topic: Chromium youtube videos bad performance on rpi3B+
Replies: 16
Views: 1594

Re: Chromium youtube videos bad performance on rpi3B+

Now I have done an rpi-update to latest kernel testing 4.19.34-v7+ with chromium 65 retained and the performance youtube 1080p fullscreen is near perfect.A little better than official kernel 4.14.98-v7+ raspbian april 2019. How test it? I am using this video https://youtu.be/HiZXABMNCUY to see any l...
by RPIgoodSBC
Thu Apr 11, 2019 11:50 am
Forum: General discussion
Topic: Chromium youtube videos bad performance on rpi3B+
Replies: 16
Views: 1594

Re: Chromium youtube videos bad performance on rpi3B+

Now I have done sudo apt full-upgrade from kernel 4.19.25-v7+ with chromium 65 retained to kernel 4.14.98-v7+ (latest official kernel April 2019 raspbian) and youtube 1080p fullscreen is working fine, not perfect but very good performance. The good youtube fullscreen 1080p performance is on chromium...
by RPIgoodSBC
Thu Apr 11, 2019 10:22 am
Forum: General discussion
Topic: Chromium youtube videos bad performance on rpi3B+
Replies: 16
Views: 1594

Re: Chromium youtube videos bad performance on rpi3B+

The latest Raspbian Stretch with desktop Image April 2019 Release date:2019-04-08 Kernel version:4.14, have a very bad performance on youtube. Chromium version is 72 versus Chromium 65 in my old raspbian image that is working very good. Linux raspberrypi 4.14.98-v7+ #1200 SMP Tue Feb 12 20:27:48 GMT...
by RPIgoodSBC
Tue Apr 09, 2019 8:35 pm
Forum: General discussion
Topic: Chromium youtube videos bad performance on rpi3B+
Replies: 16
Views: 1594

Re: Chromium youtube videos bad performance on rpi3B+

Today I have tested my raspbian image with kernel 4.19.25-v7+ that have Chromium browser version 65.0.3325.181 on Raspbian 9.8 and I have hold the chromium version with this commands... sudo apt-mark hold chromium-browser sudo apt-mark hold rpi-chromium-mods ...and after dist-upgrade the fullscreen ...
by RPIgoodSBC
Sat Apr 06, 2019 1:38 pm
Forum: General discussion
Topic: Chromium youtube videos bad performance on rpi3B+
Replies: 16
Views: 1594

Re: Chromium youtube videos bad performance on rpi3B+

> fruitoftheloom

Thanks for reply.

Can you test the below video at fullscreen 1080p on chromium and tell if it is working fine fluid or with dropped audio video?

https://youtu.be/HiZXABMNCUY
by RPIgoodSBC
Sat Apr 06, 2019 1:25 pm
Forum: General discussion
Topic: Chromium youtube videos bad performance on rpi3B+
Replies: 16
Views: 1594

Chromium youtube videos bad performance on rpi3B+

Chromium youtube videos bad performance on rpi3B+ This kernel works fine to me... [email protected]:~ $ 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... [email protected]:~ $ uname -a Linux raspberrypi 4.19.27-v7+ #1206 SMP Wed ...
by RPIgoodSBC
Thu Jul 19, 2018 4:59 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

More screenshots...
2018-07-19-dsl-reports-test-quality.png
2018-07-19-dsl-reports-test-quality.png (199.49 KiB) Viewed 3238 times
2018-07-19-RPI3B-plus-overclocked-ram-550-and-gpu-450.png
2018-07-19-RPI3B-plus-overclocked-ram-550-and-gpu-450.png (229.63 KiB) Viewed 3238 times
by RPIgoodSBC
Thu Jul 19, 2018 4:57 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

Performance test overclocked ram=550 and gpu=450 raspberrypi 3B+ and results on gigabit ethernet youtube [email protected] 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...
by RPIgoodSBC
Thu Jul 12, 2018 3:20 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

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 ...
by RPIgoodSBC
Mon Apr 16, 2018 2:43 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

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...
by RPIgoodSBC
Fri Apr 06, 2018 1:06 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

iperf3 and speedtest-cli test...
4-2018-04-06-iperf3-speedtest-cli.png
4-2018-04-06-iperf3-speedtest-cli.png (229.54 KiB) Viewed 3484 times
by RPIgoodSBC
Fri Apr 06, 2018 1:05 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

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 ...
by RPIgoodSBC
Thu Apr 05, 2018 11:26 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

@ 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...
by RPIgoodSBC
Fri Mar 30, 2018 12:54 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

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 usb bus....
by RPIgoodSBC
Thu Mar 29, 2018 4:13 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

---> 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...
by RPIgoodSBC
Thu Mar 29, 2018 3:54 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

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...
by RPIgoodSBC
Wed Mar 28, 2018 11:40 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

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
by RPIgoodSBC
Wed Mar 28, 2018 10:18 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

---> 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. [email protected]:~ $ iperf3 -c bouygues.iperf.fr -p 5209 -R Connecting to host bouygues.ipe...
by RPIgoodSBC
Wed Mar 28, 2018 9:52 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

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...
by RPIgoodSBC
Wed Mar 28, 2018 8:58 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

[ 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...
by RPIgoodSBC
Wed Mar 28, 2018 8:41 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

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...
by RPIgoodSBC
Wed Mar 28, 2018 8:22 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 192
Views: 55951

Re: RPi 3B+ gigabit ethernet bad download speeds.

---> 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...

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