61–70 of 164 posts
Let's add to that all the fuss that occurs to deliver us ads according to our recent navigation ... Improving physical delays will not speed up browsing!
If you're thinking, "it's fast enough!" -- remember that a system's performance determines what you're able to build on top of it. If GPU designers had said "it's fast enough" ten years ago, for example, modern neural-net AI may never have happened. It's easy to imagine doing the same things faster, but it's harder to picture the new things that a lower-latency Internet would make possible.
Right on the money. There is a deep synergy between AI and simulation. It's not just that they both run on GPUs, but simulation will become a major part of future AI. A robot needs to imagine scenarios before executing them. So they meet in the middle - gaming, VR, AI and robotics. Isn't it interesting that PacMan and other Atari games, that we used to play when we were kids, are now the playground of AI?
CDF = cumulative distribution function People who care about how fast the internet is are not the same set as people who know statistics acronyms, and they don't show up in a simple web search. You know how else we can make the internet better and faster? Publishing articles with software and licenses that make it easy for people to improve and share your article.
Good one.
Earlier quoted context omitted.
A lot of latency inflation over past 10 yeara came from increase in L3 switchings over L2. Nowadays, you can have over 10 IP switching in DCs, and within the last mile. You also get more hops thanks to some backbone networks abandoning MPLS in favour of native routing/packet labeling. In Romania, as I understand, networks are largely free of L3 switching overhead thanks to large portion of networks running pure L2
Most switches are routing switches and the same pipeline is used for both L2 switching and L3 routing. There is no sensible difference in switching and routing unless the switch has the ability to completely disable L3 routing. The typical latency is 500ns in store-and-forward mode (cut-through fallbacks to store-and-forward in most situations). If L2 processing could be done in 300ns, this is 200ns. With 10 routers,…
L2 switching is faster than IP routing because even cheap "smart" L2 hardware come with hardware acceleration, but a typical non-core router for a mid-tier ISP is usually a consumer grade, PC hardware based router.
ETHZ is developing a new kind of internet architecture: https://scion-architecture.net/ It's deployed in some places and working already. Citing from the webpage: > SCION is the first clean-slate Internet architecture designed to provide route control, failure isolation, and explicit trust information for end-to-end communications. Also it will reduce latency, increase throughput and more, as mentioned in the papers.…
CDF = cumulative distribution function People who care about how fast the internet is are not the same set as people who know statistics acronyms, and they don't show up in a simple web search. You know how else we can make the internet better and faster? Publishing articles with software and licenses that make it easy for people to improve and share your article.
If you are unfamiliar with basic statistical concepts it is hard to believe you will be able to provide any compelling contributions to making the internet faster.
Earlier quoted context omitted.
You're saying that achieving 2.7% of the theoretical efficiency is good? Many car engines have an efficiency of around 20% for example, as compared to the maximum theoretical efficiency of 67%. If car engines performed only well enough to meet your standard of amazingness, your gas costs would be 7 or 8 times higher. Or if you used a modern Toyota engine for comparison, something like 14 times higher. Obviously I too…
Your car is not operating at 20% efficiency of theoretical limits if you take the whole energy pipeline into account. You know... fusion, sunlight, plankton, oil, refining, combustion, mechanical energy. On the other hand speed-of-light to actual ping times is an end-to-end efficiency calculation. Plankton in particular is terrible at converting energy. sun -> mj-PV -> battery -> electric motors run circles around th…
Says the person who can't even photosynthesize!
Earlier quoted context omitted.
Most switches are routing switches and the same pipeline is used for both L2 switching and L3 routing. There is no sensible difference in switching and routing unless the switch has the ability to completely disable L3 routing. The typical latency is 500ns in store-and-forward mode (cut-through fallbacks to store-and-forward in most situations). If L2 processing could be done in 300ns, this is 200ns. With 10 routers,…
My measurements give me from 10ms to 50ms for IP routing on mainstream hardware (for the whole route). L2 switching is faster than IP routing because even cheap "smart" L2 hardware come with hardware acceleration, but a typical non-core router for a mid-tier ISP is usually a consumer grade, PC hardware based router.
If you're thinking, "it's fast enough!" -- remember that a system's performance determines what you're able to build on top of it. If GPU designers had said "it's fast enough" ten years ago, for example, modern neural-net AI may never have happened. It's easy to imagine doing the same things faster, but it's harder to picture the new things that a lower-latency Internet would make possible.