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* Unexpected swapping without memory pressure
@ 2012-03-28 19:37 Andy Lutomirski
  0 siblings, 0 replies; only message in thread
From: Andy Lutomirski @ 2012-03-28 19:37 UTC (permalink / raw)
  To: linux-mm

Last night, a server I run did something very strange: it swapped out
a bunch of pages when it apparently had lots of free memory.  This
same server has had a more or less identical load for weeks and hasn't
swapped.  Munin says:

http://web.mit.edu/luto/www/kernel/memory-day.png
http://web.mit.edu/luto/www/kernel/swap-day.png

When this happened, free memory was high.  Any ideas?

This is a mainline kernel 3.0.19 with very minor and non-mm-related patches.

Thanks,
Andy

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