Re: Memory under KVM?

[rek2 <rek2@binaryfreedom.info>]

On 12/13/09 4:42 PM, Thomas Fjellstrom wrote:
> On Sun December 13 2009, rek2 wrote:
>    
>> Hi Thanks for the responses, but look:
>> PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
>> /usr/bin/kvm -S -M pc-0.11 -m 1024 -smp 1 -name vm_hsci -uuid
>> 52ed4c7c-65e4-325e-0f96-87a5be6d854c -monitor
>> unix:/var/run/libvirt/qemu/vm_hsci.monitor,server,nowait -boot c -drive
>> file=/var/kvm_images/vm_hsci.img,if=virtio,index=0,boot=on -net
>> nic,macaddr=00:16:36:5b:c4:e2,vlan=0,name=nic.0 -net
>> tap,fd=16,vlan=0,name=tap.0 -serial pty -parallel none -usb -vnc
>> 127.0.0.1:0 -k en-us -vga cirrus -soundhw es1370
>>
>> I have -m 1ith 1024 right?
>> but if I do a top:
>> 1214m 364m 3360 S    0  4.5  46:55.24 kvm
>>
>> so is clearly above -m
>> what could be the issue?
>> Thanks
>>      
> VIRT includes a lot of shared memory, so it's not a very useful number to
> look at when trying to gauge how much memory a process is using.
>    
Ok, so then what stats should we look to calculate the amount of memory 
a server should have depending on how many guest VM's we will like to use?

Thanks again