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...ot; > > Why? > > For Cache Allocation Technology you need support at CPU hardware level. > Currently, only less than dozen CPUs support it (all server level Xeons): > > https://www.intel.com/content/www/us/en/communications/cache-monitoring-cache-allocation-technologies.html#xeoncmtcat Also besides that, the feature depends on a kernel feature which was broken upstream and deemed unusable and thus reverted. Until libvirt is rewritten to use the new resource control interface, the feature will not work with new kernels.

Libvirt release version V4.1.0 It add a element is cachetune After we add this, We can use host-cpu-cache But when i add it, my host get a error message: "Resource control is not supported on this host" Why? Following is my environment: kernel : 4.1.5, libvirt : 4.1.0 qemu : 2.9 host : lfs-7.0 my add cachetune in xml: <cachetune

...not supported on this host" > Why? For Cache Allocation Technology you need support at CPU hardware level. Currently, only less than dozen CPUs support it (all server level Xeons): https://www.intel.com/content/www/us/en/communications/cache-monitoring-cache-allocation-technologies.html#xeoncmtcat Michal

...> > > For Cache Allocation Technology you need support at CPU hardware level. > > Currently, only less than dozen CPUs support it (all server level Xeons): > > > > https://www.intel.com/content/www/us/en/communications/cache-monitoring-cache-allocation-technologies.html#xeoncmtcat > > Also besides that, the feature depends on a kernel feature which was > broken upstream and deemed unusable and thus reverted. Until libvirt is > rewritten to use the new resource control interface, the feature will > not work with new kernels. IIUC, that only applies to the per...