Comments by "Limrasson" (@Limrasson) on "Blizzard using the same servers since 2004" video.

@GroxEmpire I don't know that much about bandwith and data transfer, but if it's a hardware capacity issue (which it likely is) then you can in fact, or at least should be able to, enable more CPUs so this does not happen. The issue is that dynamic allocation of said CUs is expensive as hek. So they don't.
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@GroxEmpire Well if it's an exclusive file access, so an update instruction then more CPU might very well not do anything, but if it's just read then it should be fine.
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@GroxEmpire I don't see why that's a problem. Multiple cores just have to wait for all timestamped data to be ready and syncronize. So for instance a huge arcane explosion creates and is matched against all types of data you just said, maybe they are not stored in a dataset maybe they are, what matters is how many of these explosions a processor can take on and how long it takes for it. But there is a timestamp for when that ability went off, there is also a duration for all communications and calculations. Increasing the number of processors decreases the time it takes to make the calculations. Of course syncronization also takes resources and therefore there is a diminishing return on the number of cores you add and eventually it's not worth adding more. Also if it worked almost 20 years ago (I was there, AQ opening had 3 minutes lag, but outdoor mass PvP was mostly fine), then it most definitely could work now.
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