3 ms·

And that's such a hard problem that you don't even have to go down to CPU scale for it to matter. If you look at mainboards (or some smaller PCBs), the connect

by creshal 10y ago

And that's such a hard problem that you don't even have to go down to CPU scale for it to matter. If you look at mainboards (or some smaller PCBs), the connecting lanes between e.g. RAM and CPU closer to the centre are often zigzagged, to match the lengths – and delays – of the necessarily longer outer lanes. The speed of light is actually really damn slow.

hamiltonkibbe 10y ago
> The speed of light is actually really damn slow. I don't think one really appreciates that until they found out that after X hours of place&route they missed timing by some fraction of a nanosecond
Dylan16807 10y ago
> you don't even have to go down to CPU scale for it to matter. It's say it's the opposite, really. The longer the wires, the more effort it takes to synchronize their delays within a certain number of picoseconds.