[CentOS-virt] kvm guest ram
markus.falb at fasel.at
Tue May 24 09:53:59 EDT 2011
On a 4gb 64 bit centos kvm guest per libvirt
but in dmesg of the guest I find
Memory: 4039712k/5242880k available (2592k kernel code, 154076k
reserved, 1653k data, 224k init)
Why is dmesg reporting 5g of ram ? Or am I reading wrong ?
How much memory on the Host is necessary on the kvm host for this "4g"
machine in the worst case (I try to not overcommit for now). I want to
avoid the situation that this "4g" machine requires "5g".
A 4gb 32 bit machine is reporting expected values
Memory: 3102712k/4194304k available (2190k kernel code, 41592k reserved,
911k data, 228k init, 2228160k highmem)
All of the above lead to the following more generic question:
How many percent of the Host RAM may I safely give to guests (without
Kind Regards, Markus Falb
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 307 bytes
Desc: OpenPGP digital signature
Url : http://lists.centos.org/pipermail/centos-virt/attachments/20110524/fd75c7c7/attachment.bin
More information about the CentOS-virt