[ovirt-users] Re: High Performance VM: trouble using vNUMA and hugepages

Hi, this is probably a bug. Can you open a new ticket in Bugzilla? https://bugzilla.redhat.com/enter_bug.cgi?product=ovirt-engine As a workaround, if you are sure that the VM's NUMA configuration is compatible with the host's NUMA configuration, you could create a custom cluster scheduling policy and disable the "NUMA" filter. In Administration -> Configure -> Scheduling Policies. Regards, Andrej On Thu, 13 Jun 2019 at 12:49, Matthias Leopold <matthias.leopold(a)meduniwien.ac.at <mailto:matthias.leopold@meduniwien.ac.at>> wrote: > Hi, > > I'm having trouble using vNUMA and hugepages at the same time: > > - hypervisor host hast 2 CPU and 768G RAM > - hypervisor host is configured to allocate 512 1G hugepages > - VM configuration > * 2 virtual sockets, vCPUs are evenly pinned to 2 physical CPUs > * 512G RAM > * 2 vNUMA nodes that are pinned to the 2 host NUMA nodes > * custom property "hugepages=1048576" > - VM is the only VM on hypervisor host > > when I want to start the VM I'm getting the error message > "The host foo did not satisfy internal filter NUMA because cannot > accommodate memory of VM's pinned virtual NUMA nodes within host's > physical NUMA nodes" > VM start only works when VM memory is shrunk so that it fits in (host > memory - allocated huge pages) > > I don't understand why this happens. Can someone explain to me how this > is supposed to work? > > oVirt engine is 4.3.3 > oVirt host is 4.3.4 > > thanks > matthias