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A Portal Connecting NYC to Dublin Opens in Flatiron Today

secretnyc.co

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Re: A Portal Connecting NYC to Dublin Opens in Flatiron Today

#54
post #36
post #25

Earlier quoted context omitted.

Why 1/30th? Latency will be far more than that due to speed of light. My mpeg vision circuits are about 480ms end to end from Washington/New York to London. The j2k ones are faster but still in the 200ms range. In theory you could get it down to sub 100ms but at that point you are certainly having to engineer your paths correctly and use barely any compression. Uncompressed 4k is in the 10gbit range. My uhd jxs bitra…

OP is correct, 1/30 s is a good ballpark theoretical lower bound. Assuming travel across the earth surface, light in a vacuum take about 14ms to cross the distances. Times two for round trip that’s about 1/30 s. Of course we don’t have anywhere near ideal conditions there (at a minimum, light in fiber is already slower, closer to 40ms round trip in that case, and of course network infrastructure adds orders of magnit…

You don’t need round trip with live video, you can push frames in UDP packets from both sides.

Re: A Portal Connecting NYC to Dublin Opens in Flatiron Today

#55
post #24

Earlier quoted context omitted.

It doesn't say what technology is used, does it? Could be using wifi, or cell networks.

Wired, using the subsea fiber cables, your still stuck at a 60 ms RTT minimum from NYC to Dublin. Add in video transcoding time and a more realistic estimate of the networks on either side, and you're looking at latency closer to 200-400 ms. WiFi over this distance actually isn't a significant contributor to latency.

Actually transcoding can be done far below that with consumer hardware. I’m doing Quicksync accelerated transcoding right now for Moonlight and encoding/decoding latency is only a few ms. And Wifi is, by far the greatest source of latency. In fact I can get data to a datacenter a few hundred km away over a fiber connection faster than Wifi across the room (<5ms vs 10-20ms)

Re: A Portal Connecting NYC to Dublin Opens in Flatiron Today

#57
post #22

I hope this helps manifest a real portal but yeah JetBlue may disagree (i.e. unmanifest)

That was an ad in the beginning, right?

So that JetBlue can sell more credit cards? https://www.theatlantic.com/ideas/archive/2023/09/airlines-b...

Re: A Portal Connecting NYC to Dublin Opens in Flatiron Today

#60

Earlier quoted context omitted.

Wired, using the subsea fiber cables, your still stuck at a 60 ms RTT minimum from NYC to Dublin. Add in video transcoding time and a more realistic estimate of the networks on either side, and you're looking at latency closer to 200-400 ms. WiFi over this distance actually isn't a significant contributor to latency.

Actually transcoding can be done far below that with consumer hardware. I’m doing Quicksync accelerated transcoding right now for Moonlight and encoding/decoding latency is only a few ms. And Wifi is, by far the greatest source of latency. In fact I can get data to a datacenter a few hundred km away over a fiber connection faster than Wifi across the room (<5ms vs 10-20ms)

A few hundred km and 5000-7000 km under the ocean are very different. Good to know transcoding can be so fast, though.

Dublin is about 10-50 times further from NY than you are from that datacenter, and the speed of light is a universal limit.

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