There is no way for the kernel to predict what pages you will and won't
need in the future, and it is not desirable to simply pull pages in from
swap just because there is room for them, as those pages very well may
never be referenced again so the ram would be better used by for
example, the page cache.


** Changed in: linux (Ubuntu)
       Status: Confirmed => Won't Fix

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https://bugs.launchpad.net/bugs/133853

Title:
  Automatically reclaim swapped pages when there is free memory

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