[Openstack-operators] Strange memory usage

Samuel Winchenbach swinchen at gmail.com
Tue Oct 15 15:43:44 UTC 2013


Hi all,

I have a 16 process/64GB RAM compute node running Grizzly with some odd
memory usage behavior.  The node is currently running 17 lightly used VMs.

root at test1:~/scripts# free -m
             total       used       free     shared    buffers     cached
Mem:         64429      48742      15687          0          0      28479
-/+ buffers/cache:      20263      44166
Swap:         4093       4026         67

As you can see I have over 15GB free (44 if you remove cached memory!)  yet
the swap space is almost completely full.

Any idea what might be going on?

Thanks,
Sam
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