QOS - possibly improving ping

Discussion in 'Tech Support & Showroom' started by Zorph, Sep 20, 2018.

  1. Zorph

    Zorph Legendary Gamer Legendary Gamer Veteran Member

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    I had to set up a new router, so have been reading up on them. Turning on QOS might improve some peoples lag issues in games.

    https://www.makeuseof.com/tag/fix-gaming-video-lag-easy-router-tweak/

    You can test your speed at DSL Reports. It is a very good test because it shows your bufferbloat

    https://www.makeuseof.com/tag/fix-gaming-video-lag-easy-router-tweak/
    https://inspeednetworks.com/resources/fix-buffer-bloat/

    Bufferbloat is when your Internet slows to a crawl because too many packets queue up in buffers between you and the sites you are communicating with. Users experience high latency and/or jitter, even when they have a high bandwidth connection.
     
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  2. twobits

    twobits Test Tenacious Gamer Veteran Member 2009 Original Member

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    I knew about bufferbloat for awhile, from back in the telnet mud days and making sure Naggle was enabled. However, like many I did not pay attention to it for awhile once I got a high speed connection. I really have no other choices than cable these days. At least till DOCSIS 3.1 Full Duplex comes I am stuck with a highly asymmetrical connection and TCP/IP works much better over symmetric connections. I had two things happen recently that forced me to finally fix my bufferbloat issue. I needed to be able to use SIP/VoIP and my download speeds got a large boost while the upload speeds stayed the same. This made VoIP completely unusable so I had to do something. I was going to try traditional QoS, but that can be a pain and is application specific. I happened to come across a discussion on buffer bloat and figure I would try that first. Unfortunately the routers I had did not support settings for it, and did not support custom firmware that did. So I tried a few prosumer routers that worked to get me from a D on the dslreports test to an A+. It has made the world of difference, VoIP works, I don't get those hangs loaded webpages, or the pauses streaming video anymore. I had forgotten how much of a difference it can make and how bad the large asymmetry can affect things.

    QoS is a bit different then AQM (Adaptive queue management) which is used to reduce bufferbloat. The first article you link to is for QoS. http://bufferbloat.net/projects/bloat/wiki/What_can_I_do_about_Bufferbloat/ is another source of information on buffer bloat. Unfortunately I don't think most consumer grade routers support the SQM/AQM options to reduce it. I know I had to do some shopping specifically for some prosumer routers to get rid of it.

    I can say though, that if you can, get rid of it! Made a big difference. Also, next time you buy a router try and get one that can!
     
    Last edited: Oct 18, 2018
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  3. Averie

    Averie Averie#1956 - Add me! Website Administrator Mythic Gamer Veteran Member

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    @twobits, you don't have enough likes. I'm gonna like two of your posts and then you'll meet the requirements.
     
  4. twobits

    twobits Test Tenacious Gamer Veteran Member 2009 Original Member

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    Ok, it was saying 0% required but that did it. I edited the post to put back the url and removed the message. Thanks.
     
    Last edited: Oct 18, 2018

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