Re: CPU Overcommitting question

2014-07-18 Thread Paolo Bonzini
Il 18/07/2014 18:49, riccardo.brune...@dnshosting.it ha scritto: > So, it should be ok to have the first two options, but also considering > that with hyperthreading instead of 12 cores we can consider 24? Thus we > can go with: > > 1) Assign vCPUs so that vCPU(VM1) + vCPU(VM2) = total number of c

Re: CPU Overcommitting question

2014-07-18 Thread riccardo . brunetti
Hi Paolo, thanks for the prompt reply. On 2014-07-18 17:30, Paolo Bonzini wrote: Il 18/07/2014 15:06, Riccardo Brunetti ha scritto: 1) Assign vCPUs so that vCPU(VM1) + vCPU(VM2) = total number of physical cores (12) (both VMs have < 12 vCPUs) (ie. 8+4) 2) Assign vCPUs so that vCPU(VM1) + v

Re: CPU Overcommitting question

2014-07-18 Thread Paolo Bonzini
Il 18/07/2014 15:06, Riccardo Brunetti ha scritto: > > > 1) Assign vCPUs so that vCPU(VM1) + vCPU(VM2) = total number of physical > cores (12) (both VMs have < 12 vCPUs) (ie. 8+4) > 2) Assign vCPUs so that vCPU(VM1) + vCPU(VM2) > total number of physical > cores (12) (both VMs have <= 12 vCPUs) (

CPU Overcommitting question

2014-07-18 Thread Riccardo Brunetti
Dear KVM community people, we are running on a kvm hypervisor with the following configuration: CPU : Dual socket 6 cores: Intel(R) Xeon(R) CPU E5-2430 0 @ 2.20GHz RAM : 48 GB OS: CentOS release 6.5 2 very cpu intensive virtual machines and we are trying to find the best way to optimize the av