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timvdalen
on Sept 7, 2021
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Swap on HDD: Does placement matter?
Couldn't that result in much slower reads when the head is far away from the swap when it needs to read (multiple times)?
marcodiego
on Sept 7, 2021
[–]
Even more interesting idea: pages are oportunistically mirrored between swap partitions and the kernel smartly chooses the closest one whenever needed!
resonator
on Sept 7, 2021
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parent
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Does the kernel even have the information to know which is closest. I figured that would be absracted away to the disk controller.
marcodiego
on Sept 7, 2021
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root
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The slowest swap was at the end probably because it was farther. The position of the head can be inferred by the geometry and last access.
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