4 ms·

But iOS doesn't have a concept of swap like a traditional PC OS like macOS or Windows does, does it?

• saagarjha 8y ago
  No, but iOS can kill apps in the background during times of high memory pressure.
  • rhacker 8y ago
    So it can run xcode for about 4 seconds until the OS decides to kill it?
    • saagarjha 8y ago
      > in the background
      • rhacker 8y ago
        So when you debug your app?
        • saagarjha 8y ago
          Killing Xcode would also end your debug session. Presumably Apple will think that far ahead and grant the necessary entitlements so that this doesn't happen.
• Ivoah 8y ago
  iOS still runs the darwin kernel. I'd be shocked if it didn't use swap.
  • saagarjha 8y ago
    It doesn't, I believe mostly for reasons of keeping apps from using large amounts of memory in general, and by helping keep write cycles to a minimum.
    • glhaynes 8y ago
      I've always figured it had most to do with keeping responsiveness high and predictable.
• bunnycorn 8y ago
  Correct, it kills apps before they swap.