Pinning physical CPU cores for VMs
AndrejZFeb 2 2011 — edited Apr 27 2011Hi all,
Let's assume we have OVM Server pool on two-node Dell R900 Hosts, FC switches and SAN. One server is acting as the Server Pool Master and Utilty Server, as well as the OVM Server. The other Dell R900 server acts as the OVM Server. Both Dell servers have two quad-core processors and are configured as active/passive. VMs are meant to be on SAN but will need memory and CPU from the phyisical servers in two-node Dell r900 hosts.
Is it possible to specify cores for the first VM as cpus='0,1,2,3' and the second VM as cpus='4,5,6,7' in both vm.cfg to avoid the situation when they will both use the same first four cores on the same phyisical server? I know it is more expensive lto use all 8 cores but is inevitable since the two applications in two VMs will need a lot of processing power.
What would be your recommendation how to configure vm.cfg and cpus parameter for two different VMs?
Cheers,
Andrei