3 ms·
Light travels at 186,000 miles/second in a vacuum. A quick websearch says fiber's index of refraction is ~1.467. One round trip then takes 39 ms (coincidentally
by scottlamb 6y ago
Light travels at 186,000 miles/second in a vacuum. A quick websearch says fiber's index of refraction is ~1.467. One round trip then takes 39 ms (coincidentally the same number you said for 3 legs), vs the 62.36 ms on this chart. In theory they could reduce latency by ~23 ms then with a truly direct path. To do better would require abandoning fiber.
- legulere 6y agoHollow fiber would almost reach full light speed: https://www.nojitter.com/enterprise-networking/hollow-fiber-new-option-low-latency https://www.nojitter.com/enterprise-networking/hollow-fiber-... https://www.rp-photonics.com/hollow_core_fibers.html https://www.rp-photonics.com/hollow_core_fibers.html
- scottlamb 6y agoNeat! I'd never heard of that. I look forward to the day when it's generally used rather than yet another cool technology wasted on stupid high-frequency trading.
- virtuallynathan 6y agoIt's actually being deployed for HFT in London right now by euNetworks.