From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Tokarev <mjt@tls.msk.ru>
Subject: Re: Memory leaks in virtio drivers?
Date: Sat, 27 Nov 2010 02:23:02 +0300
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To: Freddie Cash <fjwcash@gmail.com>
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27.11.2010 02:09, Freddie Cash wrote:
[]
> Enabling KSM with the way things are currently freed up 1.2 GB of RAM
> in the host.  Which was then gobbled up as buffers (now over 4 GB).

This may go away after some time.  When you start windows there are
lots of zero pages, easy to share.  Later on win actually starts using
these pages, and it shares alot less.  So it might be false goodie,
watch it closely.  It'd be interesting to see how it really performs
on your case.

For cache=off,  I highly recommend using raw partitions (or LVM logical
volumes) instead of files for disk images - if you don't do that already.
And speaking of storage, if you use some sort of raid (except raid1,
but _especially_ for raid[456]), ensure proper alignment of everythg.

/mjt