Hi Gianluca, in 4.2 we added a new engine custom property "hugepages" to replace the VDSM hook, where the value of the property is the size of the pages in KiB (1G = 1048576, 2M = 2048). This property can be set for any VM profile type (not just to high performance VM's). Please see the following for more details (not all details are up to date, but most are): https://mpolednik.github.io/2017/06/26/hugepages-and-ovirt/ Regards, Sharon On Sat, Jun 16, 2018 at 7:42 PM, Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:
A part from configuring high performance vm, that gives me no high availability. Can I allocate huge pages using vdsm-hook-hugepages-4. 19.31-1.el7.centos.noarch
it seems that after updating an environment to 4.2 I'm not able to start a VM configured with the custom property
I get
Th ehost xxxxx did not satisfy internal filter HugePages because there are not enough free huge pages to run the VM
But on host I have
# cat /proc/meminfo | grep -i huge AnonHugePages: 0 kB HugePages_Total: 60000 HugePages_Free: 60000 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB #
and the custom property is configured to allocate 8200 huge pages to the guest
The gropu configured in sysctl.d/10-hugepages.conf is
vm.hugetlb_shm_group = 36
Do I have to set anything in /etc/securily/limits.d/ for qemu user?
Thanks In advance,
Gainluca
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