Due to 4.3 issues pick option3 for the host (Hypervisor) and for the VM - disabled THP and defined regular (2M) hugepages .Once you migrate to 4.4 - you will enable Hugepages on the Hypervisors without needing downtime for the DB in the VM. Best Regards,Strahil Nikolov On Sun, Oct 3, 2021 at 16:46, tommy<sz_cui...@163.com> wrote: My virtual machine environment is advised by Oracle to use traditional huge pages and turn off transparent huge pages. At the same time, I have three choices on the KVM server: first, use the transparent huge page as the system default; second, use the traditional huge page as the VIRTUAL machine; third, disable the transparent huge page without activating the traditional huge page. I'd like to know if there is a recommendation order for these three plans？ Because I feel that the amount of memory managed and used by the phisical machine is much larger than that of the virtrual machine, if large pages are not enabled on physical machines, will it be effective to enable large pages on virtual machines? Even it's possible to set traditional huge pages on virtual machines on this condation, but I'm not sure it will work as expected.
发自我的华为手机 -------- 原始邮件 -------- 发件人： Strahil Nikolov <hunter86...@yahoo.com> 日期： 2021年10月3日周日 17:05 收件人： sz_cui...@163.com, Strahil Nikolov via Users <users@ovirt.org> 抄送： Simon Coter <simon.co...@oracle.com> 主 题： Re: [ovirt-users]Re: 回复：Re: 回复： Re: About the vm memory limit For 4.3 - yes. This is due to the issues in 4.3Once you move to 4.4 , you should be able to enable HugePages (not THP) on the Hypervisors without troubles. I assume that your workload is 'in production' and stability (no downtime) is more important that some performance gain from HugePages on the Hypervisors. @Simon, any hints when OLVM 4.4 will be released ? Best Regards,Strahil Nikolov On Sun, Oct 3, 2021 at 6:29, tommy sway<sz_cui...@163.com> wrote: _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/KLHJDZMPLKPPXABYSP55DA472UPCKCDO/
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