• Wi-Fi bandwidth

    From pinnerite@pinnerite@gmail.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Fri Apr 2 20:39:14 2021
    From Newsgroup: alt.os.linux.ubuntu

    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan

    --
    Mint 20.04, kernel 5.4.0-42-generic, Cinnamon 4.6.7
    running on an AMD Phenom II X4 Black edition processor with 8GB of DRAM.
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From William Unruh@unruh@invalid.ca to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Fri Apr 2 21:40:54 2021
    From Newsgroup: alt.os.linux.ubuntu

    On 2021-04-02, pinnerite <pinnerite@gmail.com> wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    The bandwidth is probably more determined by that last 20 feet than
    anything else, and that is NOT determinable by any generic statements.
    Ie, the wireless part between your computer the modem. It will depend on environmental noise (is your microwave running) by intevening walls (eg
    steel studs), the positioning of the antennae, etc.

    Try using some of those speed tests you can find on the web.



    TIA

    Alan

    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Paul@nospam@needed.invalid to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Fri Apr 2 19:45:37 2021
    From Newsgroup: alt.os.linux.ubuntu

    pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan


    These are the instructions for Windows. I believe "ttcp"
    started on another platform, check your package manager
    and see if it is there. I include this, just so I won't
    have to re-write it.

    https://web.archive.org/web/20130606180737if_/http://www.pcausa.com/Utilities/pcattcp/PCATTCP-0114.zip

    On the second (perfectly working) machine, set up the receiver first.

    ipconfig # This gives the address of this machine (192.168.1.3)

    pcattcp -r -4 # The receiver sits and waits for the transmitter

    On the broken machine, do

    pcattcp -t -4 192.168.1.3 # Substitute IP address from ipconfig result...

    *******

    It's almost as basic as Ping, but not quite.

    And here is the Linux version.

    https://linux.die.net/man/1/ttcp

    It's a very basic test.

    You could also set up an ftp server on one machine,
    and an ftp client on another machine, and do some
    testing that way. Some platforms allow setting up
    an FTP server with one click - that was MacOSX :-)
    Usually, it's more work to set up ftp or http servers
    for LAN usage in testing.

    There's more than one program out there to test with,
    but there is also the tendency to go overboard with
    this stuff, and some of the others might be more trouble
    than they're worth.

    Paul
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Bit Twister@BitTwister@mouse-potato.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Fri Apr 2 22:03:51 2021
    From Newsgroup: alt.os.linux.ubuntu

    On Fri, 2 Apr 2021 20:39:14 +0100, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    Do not know about wi-fi bandwith but you might look into iperf3 for throughput testing.

    You start it as a server on one node, then run it on the client node.

    For example I have three nodes wb, tb, and mtv. wb is the server and the command
    I would run from the client nodes. Following is from my brain book.


    $ uh network speed
    _network_debug_speed_testing_server_wb_ iperf3 -s _network_debug_speed_testing_client_mtv_ iperf3 -c wb _network_debug_speed_testing_client_tb_ iperf3 -c wb

    ------key words for uh search -------- ---- command to execute--------

    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Henry Crun@mike@rechtman.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sat Apr 3 07:46:31 2021
    From Newsgroup: alt.os.linux.ubuntu

    On 02/04/2021 22:39, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan


    For basic info try installing wavemon (runs on Ubuntu)

    --
    Mike R.
    Home: http://alpha.mike-r.com/
    QOTD: http://alpha.mike-r.com/qotd.php
    No Micro$oft products were used in the URLs above, or in preparing this message.
    Recommended reading: http://www.catb.org/~esr/faqs/smart-questions.html#before
    and: http://alpha.mike-r.com/jargon/T/top-post.html
    Missile address: N31.7624/E34.9691
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From pinnerite@pinnerite@gmail.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sat Apr 3 12:01:50 2021
    From Newsgroup: alt.os.linux.ubuntu

    On Sat, 3 Apr 2021 07:46:31 +0300
    Henry Crun <mike@rechtman.com> wrote:

    On 02/04/2021 22:39, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan


    For basic info try installing wavemon (runs on Ubuntu)


    I installed wavemon on the mythtv server machine via ssh.
    I am not sure whether what it reports is about the internal wi-fi stuff or the quality of its connection via the router to the outside world.

    For now, I will stick with viewing live TV in SD.

    Thank you for your advice.

    Alan





    --
    Mint 20.04, kernel 5.4.0-42-generic, Cinnamon 4.6.7
    running on an AMD Phenom II X4 Black edition processor with 8GB of DRAM.
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Bit Twister@BitTwister@mouse-potato.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sat Apr 3 06:51:43 2021
    From Newsgroup: alt.os.linux.ubuntu

    On Sat, 3 Apr 2021 12:01:50 +0100, pinnerite wrote:
    On Sat, 3 Apr 2021 07:46:31 +0300
    Henry Crun <mike@rechtman.com> wrote:

    On 02/04/2021 22:39, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan


    For basic info try installing wavemon (runs on Ubuntu)


    I installed wavemon on the mythtv server machine via ssh.
    I am not sure whether what it reports is about the internal wi-fi stuff or the quality of its connection via the router to the outside world.

    Personally, I would suggest you would want to compare results on both
    server and client machines.

    Do run ifconfig wi-fi_here and check the Tx/Rx lines for problems on
    the client machines.
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Chris Elvidge@chris@mshome.net to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sat Apr 3 13:09:59 2021
    From Newsgroup: alt.os.linux.ubuntu

    On 02/04/2021 08:39 pm, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan


    Are you using 2.4GHz or 5GHz?
    5GHz will give a better data rate.
    HD needs more data then SD.

    --
    Chris Elvidge
    England
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Jonathan N. Little@lws4art@gmail.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sat Apr 3 09:11:13 2021
    From Newsgroup: alt.os.linux.ubuntu

    Chris Elvidge wrote:
    On 02/04/2021 08:39 pm, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV
    over wi-fi to my work computer. SD is fine and both are fine on the
    MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi
    bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan


    Are you using 2.4GHz or 5GHz?
    5GHz will give a better data rate.
    HD needs more data then SD.


    Additionally, what it distance between server and tv? What is between
    server and tv? What channel are you using and proximity to other
    networks on the same channel? 5GHz will have higher through put than
    2.4GHz but at the expense of range and sensitivity to interference. All
    the advantages of the wire over wireless.

    --
    Take care,

    Jonathan
    -------------------
    LITTLE WORKS STUDIO
    http://www.LittleWorksStudio.com
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From TJ@TJ@noneofyour.business to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sat Apr 3 10:34:28 2021
    From Newsgroup: alt.os.linux.ubuntu

    On 4/3/21 9:11 AM, Jonathan N. Little wrote:
    Chris Elvidge wrote:
    On 02/04/2021 08:39 pm, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV
    over wi-fi to my work computer. SD is fine and both are fine on the
    MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi
    bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan


    Are you using 2.4GHz or 5GHz?
    5GHz will give a better data rate.
    HD needs more data then SD.


    Additionally, what it distance between server and tv? What is between
    server and tv? What channel are you using and proximity to other
    networks on the same channel? 5GHz will have higher through put than
    2.4GHz but at the expense of range and sensitivity to interference. All
    the advantages of the wire over wireless.

    Agreed. When I got my first dual-band router, I thought I'd use the 5GHz
    band on my laptop, leaving the lower frequency to my brother so we
    didn't have to share the bandwidth on the lower frequency. But, I soon
    learned that when I put a couple of walls and a floor between my router
    and laptop, 5Ghz was actually the slower of the two.

    TJ
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Melzzzzz@Melzzzzz@zzzzz.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sat Apr 3 14:47:36 2021
    From Newsgroup: alt.os.linux.ubuntu

    ["Followup-To:" header set to alt.os.linux.mint.]
    On 2021-04-03, Chris Elvidge <chris@mshome.net> wrote:
    On 02/04/2021 08:39 pm, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan


    Are you using 2.4GHz or 5GHz?
    5GHz will give a better data rate.

    Yes, but weaker signal.
    HD needs more data then SD.



    --
    current job title: senior software engineer
    skills: x86 aasembler,c++,c,rust,go,nim,haskell...

    press any key to continue or any other to quit...
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Abandoned_Trolley@someone@microsoft.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sat Apr 3 16:01:28 2021
    From Newsgroup: alt.os.linux.ubuntu

    On 02/04/2021 20:39, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan



    Why not stop worrying about "bandwidth" (whatever that means to you) and
    check the actual connection speed, just like any normal phone or laptop
    user would ?

    Theres no mention of it anywhere in this thread

    AT
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Jonathan N. Little@lws4art@gmail.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sat Apr 3 11:26:27 2021
    From Newsgroup: alt.os.linux.ubuntu

    TJ wrote:
    On 4/3/21 9:11 AM, Jonathan N. Little wrote:

    <snip>

    Additionally, what it distance between server and tv? What is between
    server and tv? What channel are you using and proximity to other
    networks on the same channel? 5GHz will have higher through put than
    2.4GHz but at the expense of range and sensitivity to interference. All
    the advantages of the wire over wireless.

    Agreed. When I got my first dual-band router, I thought I'd use the 5GHz
    band on my laptop, leaving the lower frequency to my brother so we
    didn't have to share the bandwidth on the lower frequency. But, I soon learned that when I put a couple of walls and a floor between my router
    and laptop, 5Ghz was actually the slower of the two.


    Absolutely, you may have a higher initial base bandwidth value but with
    a weak and obstructed signal lose all advantage as dropped packets
    require resending.

    --
    Take care,

    Jonathan
    -------------------
    LITTLE WORKS STUDIO
    http://www.LittleWorksStudio.com
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Bud Frede@frede@mouse-potato.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sun Apr 4 06:06:21 2021
    From Newsgroup: alt.os.linux.ubuntu

    William Unruh <unruh@invalid.ca> writes:

    On 2021-04-02, pinnerite <pinnerite@gmail.com> wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    The bandwidth is probably more determined by that last 20 feet than
    anything else, and that is NOT determinable by any generic statements.
    Ie, the wireless part between your computer the modem. It will depend on environmental noise (is your microwave running) by intevening walls (eg
    steel studs), the positioning of the antennae, etc.

    The key thing is usually airtime. It _is_ possible to measure what's
    actually going on, but AFAIK it requires more sophisticated test
    equipment than most people have access to.



    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Bud Frede@frede@mouse-potato.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sun Apr 4 06:10:17 2021
    From Newsgroup: alt.os.linux.ubuntu

    Chris Elvidge <chris@mshome.net> writes:

    On 02/04/2021 08:39 pm, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan


    Are you using 2.4GHz or 5GHz?
    5GHz will give a better data rate.
    HD needs more data then SD.

    HD should still be quite possible with 2.4GHz channels. It also
    penetrates better, so in some cases will perform better over a distance.

    All of this also depends upon where you live and whether or not there
    are competing WiFi networks within range (and how busy those networks
    are).

    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Bud Frede@frede@mouse-potato.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sun Apr 4 06:19:33 2021
    From Newsgroup: alt.os.linux.ubuntu

    Abandoned_Trolley <someone@microsoft.com> writes:

    On 02/04/2021 20:39, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan



    Why not stop worrying about "bandwidth" (whatever that means to you)
    and check the actual connection speed, just like any normal phone or
    laptop user would ?

    Theres no mention of it anywhere in this thread

    It can vary from moment to moment, and may not mean much anyway. It's
    like the "bars" that you see on a typical cell phone that are supposed
    to indicate signal strength in a meaningful way. :-)

    I've been told about some consumer network equipment that recognizes
    when one of the popular speed test sites is being used and prioritizes
    that traffic so that speed test results look better. (Doing a "VW," in
    other words.)

    I know of some other consumer network equipment that learns traffic
    patterns and changes its behavior based on them. A streaming 4K video
    session will be optimized because it takes place over a long period of
    time. A speed test is too short in duration to be optimized for (unless
    you're cheating like the other company), and it's highly abnormal usage
    as well, so the results shown may not reflect real-world usage of the
    network.

    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Abandoned_Trolley@someone@microsoft.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sun Apr 4 11:51:50 2021
    From Newsgroup: alt.os.linux.ubuntu

    On 04/04/2021 11:19, Bud Frede wrote:
    Abandoned_Trolley <someone@microsoft.com> writes:

    On 02/04/2021 20:39, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google.

    TIA

    Alan



    Why not stop worrying about "bandwidth" (whatever that means to you)
    and check the actual connection speed, just like any normal phone or
    laptop user would ?

    Theres no mention of it anywhere in this thread

    It can vary from moment to moment, and may not mean much anyway. It's
    like the "bars" that you see on a typical cell phone that are supposed
    to indicate signal strength in a meaningful way. :-)

    I've been told about some consumer network equipment that recognizes
    when one of the popular speed test sites is being used and prioritizes
    that traffic so that speed test results look better. (Doing a "VW," in
    other words.)

    I know of some other consumer network equipment that learns traffic
    patterns and changes its behavior based on them. A streaming 4K video
    session will be optimized because it takes place over a long period of
    time. A speed test is too short in duration to be optimized for (unless you're cheating like the other company), and it's highly abnormal usage
    as well, so the results shown may not reflect real-world usage of the network.


    I am well aware of all of that. However, there is still no mention at
    all of the connection speed anywhere in this thread.

    More importantly, theres no mention of any attempt to ascertain the
    actual (wired or fibre) download speed from the ISP to the router (which
    DOES NOT vary from moment to moment) which is more likely to be the
    cause of the problem.

    I would check the admin page of the router and see what the downstream
    line rate is and work from there. If it looks like its OK then (if
    possible) it might be an idea to make a temporary WIRED connection to
    the router and see if that cures the problem. If it doesnt, then clearly
    its not a wi-fi issue.

    Nothing I have seen in this thread so far conclusively proves that the
    wi-fi is at fault.

    AT




    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Paul@nospam@needed.invalid to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Sun Apr 4 08:02:44 2021
    From Newsgroup: alt.os.linux.ubuntu

    Abandoned_Trolley wrote:
    On 04/04/2021 11:19, Bud Frede wrote:
    Abandoned_Trolley <someone@microsoft.com> writes:

    On 02/04/2021 20:39, pinnerite wrote:
    I have been experiencing jerkyness streaming live HD TV from MythTV
    over wi-fi to my work computer. SD is fine and both are fine on the
    MythTV server.

    So, I concluded that it must be limits across the wi-fi.

    is there /are there any programs that can demonstrate the wi-fi
    bandwith and perhaps how it is bewing sliced up?

    I couldn't find anything from a brief search via DuckDuckGo or google. >>>>
    TIA

    Alan



    Why not stop worrying about "bandwidth" (whatever that means to you)
    and check the actual connection speed, just like any normal phone or
    laptop user would ?

    Theres no mention of it anywhere in this thread

    It can vary from moment to moment, and may not mean much anyway. It's
    like the "bars" that you see on a typical cell phone that are supposed
    to indicate signal strength in a meaningful way. :-)

    I've been told about some consumer network equipment that recognizes
    when one of the popular speed test sites is being used and prioritizes
    that traffic so that speed test results look better. (Doing a "VW," in
    other words.)

    I know of some other consumer network equipment that learns traffic
    patterns and changes its behavior based on them. A streaming 4K video
    session will be optimized because it takes place over a long period of
    time. A speed test is too short in duration to be optimized for (unless
    you're cheating like the other company), and it's highly abnormal usage
    as well, so the results shown may not reflect real-world usage of the
    network.


    I am well aware of all of that. However, there is still no mention at
    all of the connection speed anywhere in this thread.

    More importantly, theres no mention of any attempt to ascertain the
    actual (wired or fibre) download speed from the ISP to the router (which DOES NOT vary from moment to moment) which is more likely to be the
    cause of the problem.

    I would check the admin page of the router and see what the downstream
    line rate is and work from there. If it looks like its OK then (if
    possible) it might be an idea to make a temporary WIRED connection to
    the router and see if that cures the problem. If it doesnt, then clearly
    its not a wi-fi issue.

    Nothing I have seen in this thread so far conclusively proves that the
    wi-fi is at fault.

    AT

    Pinnerite setup, described in OP

    Some-Wifi-Router ---+---------------------+
    | |
    Client MythTV -- OTA
    (Wifi) (Wifi)
    PC PC

    This is a question of LAN performance, nothing
    about WAN or pulling Netflix or anything like that.

    MythTV is capable of complicated setups, but we're not
    being told about that. There can be front ends and
    back ends in the picture. Tuners doing capture,
    would burn up as much bandwidth as client sessions
    (2 megabytes/sec per tuner?). A capture tuner could be
    competing for bandwidth, with a client session trying
    to watch a recording.

    http://www.killswtch.net/wp-content/uploads/2007/12/mythtv-network.png

    You could do an air survey or whatever. See whether
    there's a better Wifi channel or band choice maybe.

    https://www.pcwdld.com/wifi-tools

    Or any sort of simple LAN transfer would indicate
    whether something is broken. If you can only get
    11 megabits/sec during a file transfer, that's going
    to doom TV streaming.

    Doing speedtest.net won't help, because it's not
    a WAN issue.

    If a router is not supporting QOS (quality of service)
    protocol options, then the router might be using nothing
    more complicated than round robin. That's what the LAN
    to WAN router on my network does. The higher speed portion
    is done with a GbE switch. If one machine opens too many
    WAN-directed connections to the router, the other machines
    might not get as many slices of the WAN pie as a result.
    I can just about starve a second machine (can't web surf),
    if the first machine opens a shitload of connections. But
    this is an issue of getting fair share on the WAN end,
    which is not particularly the problem here.

    Networking questions can benefit from drawings,
    but what are ya gonna do.

    Paul
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From pinnerite@pinnerite@gmail.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Tue Apr 6 17:59:48 2021
    From Newsgroup: alt.os.linux.ubuntu

    On Sat, 3 Apr 2021 16:01:28 +0100

    Why not stop worrying about "bandwidth" (whatever that means to you) and check the actual connection speed, just like any normal phone or laptop
    user would ?

    Theres no mention of it anywhere in this thread

    AT

    If I disconnect the phone connection at the router, I still have wi-fi access between my devices.

    Recording TV does not depend on the wi-fi. the signal comes from the TV aerial directly to both the TV and the HTPC.

    Both my work computer and the TV only handle 2.4Ghz. The remaining items are enabled for that and 5Ghz including a TP-Link wi-fi extender.

    Now there is no problem on the combined frontend / backend server presumably because wi-fi is not involved. Similarly, playback to the TV is fine because it is connected by an HDMI cable. Sadly to the remote frontend on my work-machine it is.

    The extraordinary thing is that playback of HD via wi-fi to my work machine is fine,
    Live TV is not. Logically I would expect them behave the same.

    As Ian Lang often says "I blame the EU".


    --
    Mint 20.04, kernel 5.4.0-42-generic, Cinnamon 4.6.7
    running on an AMD Phenom II X4 Black edition processor with 8GB of DRAM.
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Paul@nospam@needed.invalid to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Tue Apr 6 23:13:04 2021
    From Newsgroup: alt.os.linux.ubuntu

    pinnerite wrote:
    On Sat, 3 Apr 2021 16:01:28 +0100
    Why not stop worrying about "bandwidth" (whatever that means to you) and
    check the actual connection speed, just like any normal phone or laptop
    user would ?

    Theres no mention of it anywhere in this thread

    AT

    If I disconnect the phone connection at the router, I still have wi-fi access between my devices.

    Recording TV does not depend on the wi-fi. the signal comes from the TV aerial directly to both the TV and the HTPC.

    Both my work computer and the TV only handle 2.4Ghz. The remaining items are enabled for that and 5Ghz including a TP-Link wi-fi extender.

    Now there is no problem on the combined frontend / backend server presumably because wi-fi is not involved. Similarly, playback to the TV is fine because it is connected by an HDMI cable. Sadly to the remote frontend on my work-machine it is.

    The extraordinary thing is that playback of HD via wi-fi to my work machine is fine,
    Live TV is not. Logically I would expect them behave the same.

    As Ian Lang often says "I blame the EU".

    But you know your MythTV better than anyone here.

    The software (not MythTV) for my tuner card, does it this way.

    "Live TV"

    1) Comes into tuner from OTA antenna.
    2) Tuner packets are written to disk. Disk could be on a backend machine.
    3) Streaming software reads from disk (delayed maybe a second or two).
    4) MPEG2 video now needs to be decoded and sent to a screen, from (3)
    This uses a bit of CPU (in the old days), or it uses
    the Video SIP on your video card.

    The "feature" that comes with this, is while you are watching LiveTV,
    you can "commit" what has just been shown, and the file stored on
    the hard drive is then kept for later.

    The activity in that sequence, might involve two passes on
    Wifi, thrashing at the hard drive (reads and writes could be
    smoothed a bit via caching), and CPU activity for decode
    (which could be moved to a block on the video card).

    With your knowledge of how MythTV works, maybe you'll find
    a bottleneck similar to the above.

    Paul
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From pinnerite@pinnerite@gmail.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Fri Apr 9 10:15:08 2021
    From Newsgroup: alt.os.linux.ubuntu

    On Tue, 06 Apr 2021 23:13:04 -0400
    Paul <nospam@needed.invalid> wrote:

    pinnerite wrote:
    On Sat, 3 Apr 2021 16:01:28 +0100
    Why not stop worrying about "bandwidth" (whatever that means to you) and >> check the actual connection speed, just like any normal phone or laptop >> user would ?

    Theres no mention of it anywhere in this thread

    AT

    If I disconnect the phone connection at the router, I still have wi-fi access between my devices.

    Recording TV does not depend on the wi-fi. the signal comes from the TV aerial directly to both the TV and the HTPC.

    Both my work computer and the TV only handle 2.4Ghz. The remaining items are enabled for that and 5Ghz including a TP-Link wi-fi extender.

    Now there is no problem on the combined frontend / backend server presumably because wi-fi is not involved. Similarly, playback to the TV is fine because it is connected by an HDMI cable. Sadly to the remote frontend on my work-machine it is.

    The extraordinary thing is that playback of HD via wi-fi to my work machine is fine,
    Live TV is not. Logically I would expect them behave the same.

    As Ian Lang often says "I blame the EU".

    But you know your MythTV better than anyone here.

    The software (not MythTV) for my tuner card, does it this way.

    "Live TV"

    1) Comes into tuner from OTA antenna.
    2) Tuner packets are written to disk. Disk could be on a backend machine.
    3) Streaming software reads from disk (delayed maybe a second or two).
    4) MPEG2 video now needs to be decoded and sent to a screen, from (3)
    This uses a bit of CPU (in the old days), or it uses
    the Video SIP on your video card.

    The "feature" that comes with this, is while you are watching LiveTV,
    you can "commit" what has just been shown, and the file stored on
    the hard drive is then kept for later.

    The activity in that sequence, might involve two passes on
    Wifi, thrashing at the hard drive (reads and writes could be
    smoothed a bit via caching), and CPU activity for decode
    (which could be moved to a block on the video card).

    With your knowledge of how MythTV works, maybe you'll find
    a bottleneck similar to the above.

    Paul

    That is a very useful explanation but most MythTV users will be connected much the same way, yet I have not come across simmilar complaints.

    However!

    This morning I had to reboot the router because our cellphones registered "No Wifi" ot no "Internet connection". This has been happening throughout the year. Not frequently but often enough. I am wondering whether the router (supplied by TalkTalk) is actually faulty.

    -
    Mint 20.04, kernel 5.4.0-42-generic, Cinnamon 4.6.7
    running on an AMD Phenom II X4 Black edition processor with 8GB of DRAM.
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Paul@nospam@needed.invalid to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Fri Apr 9 13:55:35 2021
    From Newsgroup: alt.os.linux.ubuntu

    pinnerite wrote:

    This morning I had to reboot the router because our cellphones
    registered "No Wifi" ot no "Internet connection". This has been
    happening throughout the year. Not frequently but often enough.
    I am wondering whether the router (supplied by TalkTalk) is actually faulty.

    It's possible. My very first router was flake-city and
    the most likely culprit was how the CPU was clocked.
    Rather than the firmware being buggy. Embedded CPUs can
    use a quartz crystal and an internal oscillator, or can
    be driven from an external four pin tin can oscillator.
    The tin can only has one job to do, and is thus more
    trustworthy.

    Sometimes, an excuse could be made for failures, based on
    what the box-at-the-corner is doing.

    All the other network boxes with a CPU inside since then,
    have had the normal level of reliability. I don't consider
    bad CPU design to be endemic. As the industry matures, things
    should improve.

    Another possibility is bad thermal design. As a recent example,
    TPLink makes a new pair of 10GbE switches. One with five ports,
    one with eight ports. The eight port one has a fan, the
    five port one, does not have a fan. Hmmm. And the units
    are expensive enough at retail, for a fan to be included
    if it is needed. There was a time when GbE ports first
    came out, where there were premature failures related
    to thermals. One guy dremeled a hole in his and fitted
    a regular heatsink to the main chip.

    You can spot lots of really stupid stuff, when it
    comes to engineering. I especially like disk enclosures
    equipped with a fan, where there are no vent holes for
    an air intake. And it works just as well as you would
    expect :-)

    Paul

    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Bit Twister@BitTwister@mouse-potato.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Fri Apr 9 19:21:16 2021
    From Newsgroup: alt.os.linux.ubuntu

    On Fri, 9 Apr 2021 10:15:08 +0100, pinnerite wrote:


    This morning I had to reboot the router because our cellphones registered "No Wifi" ot no "Internet connection". This has been happening throughout the year. Not frequently but often enough. I am wondering whether the router (supplied by TalkTalk) is actually faulty.


    I have seen the same kind of problem when my ISP upgrades the router firmware. I have also lost connection when my ISP re-balances the LAN and I get a new ip address but need to re-boot to get new ip.

    I have an hourly cron job to check internet access and will tell me if my Internet ip address has changed.



    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Big Bad Bob@BigBadBob-at-mrp3-dot-com@testing.local to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Wed Apr 14 02:51:59 2021
    From Newsgroup: alt.os.linux.ubuntu

    On 2021-04-06 09:59, pinnerite wrote:
    Both my work computer and the TV only handle 2.4Ghz. The remaining items are enabled for that and 5Ghz including a TP-Link wi-fi extender.

    2.4Ghz in the USA has bands that are too narrow for anything above
    6Mbit; that is, they will extend beyond a single channel into the
    neighboring channels.

    You might want to use a scanning program to see what other access points
    (and bluetooth devices) are also using bandwidth in the 2.4Ghz range.
    Even some portable phones use it. It's _VERY_ noisy!!

    (if you are using bluetooth headphones to listen to the audio, maybe
    it's "that")

    Airplane radars even interfere with 2.4Ghz. Are you near an airport?

    The only thing you can do about 2.4Ghz interference is "big buffers" and
    cross your fingers. Otherwise, ethernet.

    On a side note, if your neighbors have frequency hopping APs, you could "claim" a channel and use iperf to max out bandwidth on several
    computers for a period of 1-2 hours until they move. It's a little mean
    but so what.

    From my house I can see at least 6 (and sometimes as many as 10) access points on 2.4Ghz. Careful choice of channels, directional antennas, and careful placement of the AP all help. THAT and the occasional "iperf
    test" to drive others off of your claimed channels...

    The extraordinary thing is that playback of HD via wi-fi to my work machine is fine,
    Live TV is not. Logically I would expect them behave the same.

    playback that is NOT live TV may involve larger buffers... [I am not
    familiar enough with Myth TV to know for sure]

    over a decade ago I was involved in doing research on improving the
    quality of streaming HD video over wifi. So I have a pretty good grip
    on the things you have to deal with when it comes to RF interference, especially on the 2.4Ghz band.


    --
    (aka 'Bombastic Bob' in case you wondered)

    'Feeling with my fingers, and thinking with my brain' - me

    'your story is so touching, but it sounds just like a lie'
    "Straighten up and fly right"
    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From gcubebuddy@gcubebuddy@f129.n4.z21.fsxnet (gcubebuddy) to pinnerite on Tue Apr 20 14:58:52 2021
    From Newsgroup: alt.os.linux.ubuntu

    is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?

    Hello, you can try the cli command iptraf it will show packets moving through your computer. wireshark can also do simular stuff with a fancy graphics
    front end.
    thanks
    - Luke

    Thanks
    - Gamecube Buddy

    telnet --<{bbs.hive32.com:23333}>--

    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From gcubebuddy@gcubebuddy@f129.n4.z21.fsxnet (gcubebuddy) to William Unruh on Tue Apr 20 15:06:32 2021
    From Newsgroup: alt.os.linux.ubuntu

    Ie, the wireless part between your computer the modem. It will depend on environmental noise (is your microwave running) by intevening walls (eg steel studs), the positioning of the antennae, etc.

    Most people dont believe this but when i worked at Dell for consumer laptop / desktop, they told us that one of the things that can kill a wifi zone is
    pine trees planted around a house. apparently the water in the pine needles vibrate at 2.6 ghtz or something like that which creates "Cross Wave Cancellation.
    - Luke

    Thanks
    - Gamecube Buddy

    telnet --<{bbs.hive32.com:23333}>--

    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Bud Frede@frede@mouse-potato.com to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Fri Apr 23 18:03:45 2021
    From Newsgroup: alt.os.linux.ubuntu

    Big Bad Bob <BigBadBob-at-mrp3-dot-com@testing.local> writes:


    Airplane radars even interfere with 2.4Ghz. Are you near an airport?

    What?


    The only thing you can do about 2.4Ghz interference is "big buffers"
    and cross your fingers. Otherwise, ethernet.

    Big buffers? What?


    On a side note, if your neighbors have frequency hopping APs, you
    could "claim" a channel and use iperf to max out bandwidth on several computers for a period of 1-2 hours until they move. It's a little
    mean but so what.

    From my house I can see at least 6 (and sometimes as many as 10)
    access points on 2.4Ghz. Careful choice of channels, directional
    antennas, and careful placement of the AP all help. THAT and the
    occasional "iperf test" to drive others off of your claimed
    channels...

    You're a real piece of work. I bet your neighbors regularly raise a
    finger in your direction.


    over a decade ago I was involved in doing research on improving the
    quality of streaming HD video over wifi. So I have a pretty good grip
    on the things you have to deal with when it comes to RF interference, especially on the 2.4Ghz band.

    Yeah, sure you were. A big "scientist" no doubt.

    --- Synchronet 3.18a-Linux NewsLink 1.113
  • From Big Bad Bob@BigBadBob-at-mrp3-dot-com@testing.local to alt.os.linux.mint,alt.os.linux.ubuntu,alt.os.linux.mageia on Mon Apr 26 05:14:51 2021
    From Newsgroup: alt.os.linux.ubuntu

    On 2021-04-23 15:03, Bud Frede wrote:
    Big Bad Bob <BigBadBob-at-mrp3-dot-com@testing.local> writes:


    Airplane radars even interfere with 2.4Ghz. Are you near an airport?

    What?


    The only thing you can do about 2.4Ghz interference is "big buffers"
    and cross your fingers. Otherwise, ethernet.

    Big buffers? What?

    Shh... the adults [those with real engeering experience] are talking

    Then again... hey look - HE DOESN'T UNDERSTAND!!! Would you like me to
    draw the lines from A to B to C so that your puny mind can comprehend???

    Did you even read the original post about watching video over wifi?

    over a decade ago I was involved in doing research on improving the
    quality of streaming HD video over wifi. So I have a pretty good grip
    on the things you have to deal with when it comes to RF interference,
    especially on the 2.4Ghz band.

    Yeah, sure you were. A big "scientist" no doubt.

    Troll off, bug. Or creep off. whatever.

    My name is actually on a provisional patent from around 2008 regarding
    this very thing, a method by which wifi packet reliability for UDP can
    be improved for transmitting video. You can research the patent. Or
    not. Up to you.

    I bet you went to one of those "schools" where they didn't want to hurt
    your self esteem so they went ahead and let you SPOUT PURE BULLSHIT and
    then patted you on the back for "participating".

    Johnny just said one and one is three. We can't hurt his FEELINGS and
    tell him he's wrong. It's ok Johnny, just believe it's three, and
    you're a good boy and shouldn't ever get discouraged...

    Something like THAT, right?

    --
    (aka 'Bombastic Bob' in case you wondered)

    'Feeling with my fingers, and thinking with my brain' - me

    'your story is so touching, but it sounds just like a lie'
    "Straighten up and fly right"
    --- Synchronet 3.18a-Linux NewsLink 1.113