Waitaminute, why does my "100% disk" transfer rate vary wildly between 3 and 65 MB per second

shouldn't a flat "100%" of something be, like, a constant same figure?

how does anything even work in a computer these days

It's definitely "active time" that's at a solid 100%, not transfer. Raw transfer got up to 60MB per sec there for a while, but mostly hovers around 3MB.

Such a bizarre performance world we're in now.

Do we gotta go back to the old 1950s days of hard-optimising all our programs so the disk head finishes a cycle exactly as we come to the NEXT in each FOR loop? Cause I don't wanna.


It's all OK though, because from an abstract viewpoint, all that's happening at every scale is just that Messages are being sent, by Objects, and the implementation details absolutely don't matter at all. In fact the less we know and care about implementation the better. In this TED Talk I will

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