Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option
On 3/4/19 4:19 PM, Igor Mammedov wrote:
Then I'd guess that most VMs end up with default '-numa
node,mem'
which by design can produce only fake NUMA without ability to manage
guest RAM on host side. So such VMs aren't getting performance benefits
or worse run with performance regression (due to wrong sched/mm decisions
as guest kernel assumes NUMA topology is valid one).
Specifying NUMA distances in libvirt XML makes it generate the modern
cmd line.
Michal