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Finding out total memory usage

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# 1  
Old 01-04-2013
Finding out total memory usage
Hi,

I have a server box with 16GB ram in it, within the server box there are 3 VMs running with a total allocation of 9GB.

if I add up all the numbers under memory info using vmstat I get 15.8GB so I can say it adds up to 16Gb...

Is there a way to see from the command line how much memory is being allocated to the VMs? Because we seem to have 3GB of RAM missing...
# 2  
Old 01-04-2013
Please take a look at the attached pics, the first one is the master box with 16GB ram but only 13 being used.

The send one shows the ram allocated for the master + the 3 VMs which totals to 13gb.

I want to know where is the extra 3gb gone? How can i figure out where to locate it?
Finding out total memory usage-pic1jpg
Finding out total memory usage-pic2jpg
# 3  
Old 01-04-2013
Quote:
Originally Posted by speedhunt3r

if I add up all the numbers under memory info using vmstat I get 15.8GB so I can say it adds up to 16Gb...

Is there a way to see from the command line how much memory is being allocated to the VMs? Because we seem to have 3GB of RAM missing...
You can see "physical" memory installed, executing from each VM something like this:

dmidecode | grep 'Memory Device$' -A6 | grep Size
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