Public bug reported:
Sometimes a runaway process will eat up huge amounts of memory, forcing
memory pages to be shipped out to the swap partition.
When I kill said process, I might be left with 800MB of free memory and
300MB of swapped pages. I am going to use these pages at some point
(many belong to the WM, browser windows in the background, etc), but
reclaiming them Just-In-Time makes the desktop feel sluggish.
I sometimes do "sudo swapoff -a && sudo swapon -a" to clean up the mess,
but Ubuntu really ought to be reclaiming swapped pages in the
background, using idle cycles.
** Affects: Ubuntu
Importance: Undecided
Status: New
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Automatically reclaim swapped pages when there is free memory
https://bugs.launchpad.net/bugs/133853
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