You can check which families are supported by an oVirt Host via:<div>virsh domcapabilities | xmllint --xpath '/domainCapabilities/cpu' -</div><div><br></div><div>For the instruction set - it all depends on the app. Set your VM with the cluster's top notch CPU , run your app and note down the performance indicators. Once the test is over, shitdown the VM, set the CPU to host-passthrough and test again.</div><div><br></div><div>Best Regards,</div><div>Strahil Nikolov&nbsp;<br> <br> <blockquote style="margin: 0 0 20px 0;"> <div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Mon, Jan 23, 2023 at 15:19, Laurent Duparchy</div><div>&lt;duparchy@esrf.fr&gt; wrote:</div> </div> <div style="padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px solid #6D00F6;"> _______________________________________________<br clear="none">Users mailing list -- <a shape="rect" ymailto="mailto:users@ovirt.org" href="mailto:users@ovirt.org">users@ovirt.org</a><br clear="none">To unsubscribe send an email to <a shape="rect" ymailto="mailto:users-leave@ovirt.org" href="mailto:users-leave@ovirt.org">users-leave@ovirt.org</a><br clear="none">Privacy Statement: <a shape="rect" href="https://www.ovirt.org/privacy-policy.html" target="_blank">https://www.ovirt.org/privacy-policy.html</a><br clear="none">oVirt Code of Conduct: <a shape="rect" href="https://www.ovirt.org/community/about/community-guidelines/" target="_blank">https://www.ovirt.org/community/about/community-guidelines/</a><br clear="none">List Archives: <a shape="rect" href="https://lists.ovirt.org/archives/list/users@ovirt.org/message/TNLZJSGJTSCT6YSQPKC7YETRD4VAPZ3J/" target="_blank">https://lists.ovirt.org/archives/list/users@ovirt.org/message/TNLZJSGJTSCT6YSQPKC7YETRD4VAPZ3J/</a><br clear="none"> </div> </blockquote></div>