4 ms·

http://man7.org/linux/man-pages/man2/mlock.2.html http://man7.org/linux/man-pages/man2/mlock.2.html at least for linux.

• monocasa 8y ago
  mlock, like VirtualLock, doesn't guarantee that a copy won't go out to disk, only that a copy will always be in RAM.
  • charleslmunger 8y ago
    The notes section of the page I linked addresses this - it'll only be paged in a hibernate state where memory is powered down. It won't be paged without that.
    • monocasa 8y ago
      That's just one of many examples. For instance if you're running in a VM, all bets are off, beacuse the host can and will page you out guest phys memory.