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As others have pointed out iOS does have virtual memory. As to why it doesn't use a swap file probably the a reason is that flash memory has a limited number of
by almost 16y ago
As others have pointed out iOS does have virtual memory. As to why it doesn't use a swap file probably the a reason is that flash memory has a limited number of read-write cycles, probably way more than you could ever use under normal usage but with paging stuff to and from flash all the time you might reach the limits much faster.
- glhaynes 16y agoThat may be a factor, but I think it's much more likely to be related to interface fluidity. People swap to SSDs on desktops/laptops without significant issue. I believe Android uses a similar scheme: virtual memory but no pagefile. Is there a way to turn on paging on Android?