• regbin_@lemmy.world
      link
      fedilink
      English
      arrow-up
      4
      ·
      1 year ago

      Not even 5 ms. I have a properly set up Wi-Fi at home and you’ll feel no difference in gaming. Wi-Fi only adds like 1-2 ms latency at most.

      • tfw_no_toiletpaper@feddit.de
        link
        fedilink
        arrow-up
        3
        ·
        1 year ago

        Is the notebook or desktop wifi NIC and antenna important or only the router? Because when I had a shitty laptop a few years back the latency sucked ass, both at home and at my university (where I hope they had good network components but idk)

        • MystikIncarnate@lemmy.ca
          link
          fedilink
          English
          arrow-up
          1
          ·
          1 year ago

          With wifi, everything is important, even the number of people connected on your channel… not the number of wifi networks on the channel, the number of total nodes using the same channel. The ap hardware factors in, your wifi card (client) factors in, even drivers and other things can factor in. The band (2.4/5/6 GHz), the non-wifi traffic, spurious emissions from other harmonic frequencies, even electrical noise from gadgets and other devices nearby. You can even factor in distance to the ap and cosmic background noise.

          On top of that, it’s half duplex, so only one node can successfully transmit at a time. So it interferes with itself.

          It’s a complete mess of unknowns and unknowable things, unless you have a very good spectrum analyser to look into it.

          IMO, this is what makes WiFi so terrible. There’s simply too many factors that can be slowing you down, most of which you can’t see and aren’t obvious.

      • WindowsEnjoyer@sh.itjust.works
        link
        fedilink
        arrow-up
        2
        ·
        1 year ago

        Unless you have no choice - a good WiFi will not add noticeable latency.

        Myself I am playing over 5ghz wifi. I would say I don’t feel much difference, but prefer cable any time!

    • Aux@lemmy.world
      link
      fedilink
      arrow-up
      3
      arrow-down
      1
      ·
      1 year ago

      WiFi 5 latency on a decent router (not the shit your ISP gives you for free) is only 0.6ms. Yes, that’s less than 1ms.

      • uis@lemmy.world
        link
        fedilink
        arrow-up
        3
        ·
        1 year ago

        I just tested ping between my weak computers, one of which supports only 100mbit ethernet and are sequentially connected via cheap 2$ dumb switch and ISP-provided router and got 0.187ms average, while ping via same system, but using 802.11ac for one device got 8.16ms with standard deviation of 11.9, maximum of 67ms and minimum of 1.44ms.

      • quadropiss@lemmy.world
        link
        fedilink
        arrow-up
        2
        ·
        1 year ago

        Right. Like even in the shittiest scenario that’s not a major difference. There’s stuff like interference and the speeds are lower, sure, but 1 gigabit is plenty for non enterprise situations

      • MystikIncarnate@lemmy.ca
        link
        fedilink
        English
        arrow-up
        1
        arrow-down
        1
        ·
        1 year ago

        Maybe…

        your latency on your network might be 0.6ms, but for most practical use-cases, it will be orders of magnitude more. Partly due to the interference and half duplex nature of wifi, but also because of CSMA/CA (carrier sense multi access / collision avoidance) algorithm, which listens before transmitting to ensure the channel is clear, and waits when it’s busy until it’s clear before transmitting. The actual transit time for each frame is very short, but getting to the point where you can actually transmit is the main challenge for wifi.

        Propegation time for a 1500 byte frame on gigabit Ethernet is approximately 12 µs, or 12 microseconds, aka 0.012 ms. So the argument is kind of squished here. Given that you have a dedicated channel to the switch (and not needing a carrier sense, collision avoidance of detection algorithm with ethernet) the frame can be immediately sent, so the total transit time from a computer connected by ethernet to a router or switch is orders of magnitude faster.