I've done relatively extensive testing on this in games I've worked on. There was disk cache, windows defender, and so many other variables.https://twitter.com/rygorous/status/1423778960739950595 …
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By the time I was done on one project, we had gone from a loading time of 44 seconds to somewhere around 0.5 seconds on our recommended spec machine. Most of those gains came from "not doing something stupid".
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I would wager that most games load times are not IO bound, but rather IO overhead bound.
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That's fascinating, those are some serious values. Do you still remember (or can talk about) what were a couple of those improvements?
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A lot of things. Lots of little IO calls was the biggest issue. IO was also hard because the threads to handle the IO being done wouldn't wake up soon enough. IO would be done in nanoseconds, but Windows' Sleep() takes 1 ms at the smallest.
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