this post was submitted on 11 Mar 2026
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Vista called it SuperFetch, and preloading pages into memory is not a bad technique. macOS and Linux do it, too, because it's a simple technique for speeding up access to data that would otherwise have to be fetched from disk. You can see that Linux does it as you check the output of
freeand read out the buff/cache column. Freeing unused pages from memory is very fast, because you can just overwrite dirty pages.Yeah, conceptually it’s good, but the free up is important and seems to be a secondary concern. Perhaps it’s the third party devs.
Wasn’t super fetch what they called the high speed usb flash drives you could use as swap? That reminds me of a time I was optimistic about technology. Vista RC and Office 2007 on my MacBook Pro.