Please look at the NUMA feature to enable you to pin a VM to a CPU group. Yaniv Dary Technical Product Manager Red Hat Israel Ltd. 34 Jerusalem Road Building A, 4th floor Ra'anana, Israel 4350109 Tel : +972 (9) 7692306 8272306 Email: ydary@redhat.com IRC : ydary On Mon, Feb 1, 2016 at 9:21 AM, David Jorm <djorm@iix.net> wrote:
Hi All
Thanks for the help that people have recently provided on this list. I'm running into another edge case that, as far as I can see, does not have a native solution within oVirt. I have a use case where every VM must have 4 pinned vCPUs, and these must map 1:1 to physical CPUs so that there are never two VMs contending for the same physical cores. I already have code in place that ensures a VM will not be created or started if n/4 VMs are already running on the target host, where n is the number of physical cores. What I need now is to ensure that pinning is managed so that each physical core maps 1:1 to vCPUs.
Would it be possible to manage the pool of physical cores in a local DB, and implement a VDSM hook similar to the example on this page?
http://www.ovirt.org/VDSM-Hooks
Or would there be a preferable solution?
Thanks David _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users