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Joined 1 year ago
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Cake day: August 11th, 2023

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  • MIMO improves throughput if you have an Internet link it can saturate; realistically even a midrange 2x2 802.11AC router will provide more wifi bandwidth than your internet does.

    And that’s where the fat controller says you are wrong. I have 1000 Mbps down. I’ve yet to actually hit that speed with WiFi 6.

    Also newer WiFi standards significantly improve latency. That’s nothing to do with having more antennas though you would be correct there.

    The meme is correct. A $6 ethernet cable beats any and all wifi routers and client adapters, and always will.

    With current technology you would be correct. But as for the always part: Ethernet is an electrical signal, so it’s actually slower than microwave signals used by WiFi, and the WiFi signals can also take a more direct path. So in the future WiFi or LiFi could in fact be faster. It’s the processing delay, and scheduling that makes WiFi have higher latency. Not the physical medium.

    Before you say this is all academic because of the small distances involved I would remind you that propagation delay is actually a large issue in current microelectronics and computers. Sometimes parts of the same chip are far enough apart to create problems for the engineers due to the high clockspeeds of modern devices.









  • Where have I done any of that? Maybe I failed to explain properly what I mean the first time, but that isn’t the same as deliberatley moving goalposts. Getting rid of data centers would only make the environmental problems associated with computing worse, which defeats the whole purpose of people wanting to vandalise them. This to me sounds like you picked on someone more knowledgeable than yourself, tried to bamboozle them with tech terms, and when that failed you try this. Be better.


  • I know you can self-host. It’s nowhere near as energy efficient as a modern data center with the setups most people have. They were complaining about the power usage of data centers, not realising they are actually the efficient way of doing things. When people talk about sabotaging data centers they are doing it for environmental reasons. Most self-hosters are using shit like old desktops, laptops, or 10 year old Haswell and Broadwell servers businesses don’t want anymore. An Epyc Bergamo would give you multiple times the capacity for similar power. Even using new hardware it’s normally better to do things at scale as it reduces overhead.

    Self-hosting is actually bad for the environment and for your power bill. It’s great for privacy, practicing sys admin skills and for breaking the law. If you actually asked people who self-host, like me, they would tell you all this. You can get low energy setups, but you will really struggle to compete against data centers in terms of flops per watt especially if your hardware is running near idle all the time. My electricity is fixed rate anyway, so I don’t really care how efficient it is, but I very much know my FX-6300 improvised server is laughable compared to modern server technology.

    Though symmetric 1G fiber is quite enough.

    How many homes have that? Homes are almost always asymmetric, sometimes to an absurd degree. I have near 1 gig download at my current place, but only 80 Mbps upload. Pretending everyone has 1 gig upload available is dumb, and you know it if you’re not an idiot.

    Edit: also all ISPs have routers, switches, and servers somewhere in a data center. That’s also how the internet backbone works. Large interconnection points, maybe a handful of them in a country like mine (UK).


  • Lemmy isn’t P2P though. If it was our clients would connect directly to each other instead of to an instance like how bittorrent works. The Usenet analogy is a lot better, but you are forgetting that modern Usenet is still hosted on large server networks inside data farms. It being decentralised doesn’t actually reduce the computer power needed at all. If anything it actually makes things more complicated. Sure individual instance servers can be smaller, but once you add together all instances it will add up to the same. Some instances like mine require multiple servers working together to host them, and it’s not even the largest instance out there on a relatively niche platform.