On Wed, Apr 19, 2017 at 3:44 PM, Martin Polednik <mpolednik@redhat.com> wrote:
If you are using recent CentOS (or I guess Fedora), there isn't any extra setup required. Just create the custom property:
Both my engine and my hosts are CentOS 7.3 + updates
On the host where engine is running:
$ engine-config -s "UserDefinedVMProperties=hugepages=^.*$" $ service ovirt-engine restart
and you should see 'hugepages' when editing a VM under custom properties.
So no vdsm hook at all to install?
Set the number to (desired memory / 2048) and you're good to go. The VM will run with it's memory backed by hugepages.
As in sysctl.conf? So that if I want 4Gb of Huge Pages I have to set 2048?
If you need hugepages even inside the VM, do whatever you would do on a physical host.
mpolednik
yes, the main subject is to have Huge Pages inside the guest, so that Oracle RDBMS at startup detect them and use them Gianluca