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vmware memory sharing numbers

Posted May 14, 2009 8:47 UTC (Thu) by robbe (guest, #16131)
Parent article: KSM tries again

For reference: on my vmware ESX 3.5 installation Linux VMs have between 5
and 25 % of their allotted memory marked as shared. The factor is higher
for idle machines than for busy ones -- as expected.

I've seen 35 % for Windows VMs, as these tend to more aggressively zero
out unused pages. These are of course trivially shareable.

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