Re: [ovirt-users] Question about Huge Pages
On Wed, Apr 19, 2017 at 3:44 PM, Martin Polednik <mpolednik(a)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
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