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This made me think of https://e4rat.sourceforge.net/, which moves boot files into sequential runs, which was helpful on spinning disks where seeks were slow but sequential reads were fast.

Just as an idea for a feature your defragmenter could have.

(Also this is a side thought; but I wonder if AWS AMIs and EBS volumes will boot faster if also organized sequentially.)

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> Also this is a side thought; but I wonder if AWS AMIs and EBS volumes will boot faster if also organized sequentially.

Probably a measurable, but small, difference. I would expect it's not worth the effort unless you're spending a lot of time booting, and even then, there's probably better things to work on in the boot process, such as reducing the amount of things that run or reducing the size of them.

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