[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Xen CPU limit?
>>> Pasi KÃrkkÃinen<pasik@xxxxxx> 29.03.10 17:49 >>> >I think the number of virtual cpus (vcpus) per guest is (was) 32, >and now in Xen 4.0.0 you can have up to 64 vcpus per guest. I don't think the tools are up to anything beyond 32 yet. The (64-bit) hypervisor allows up to 8192 vCPU-s iirc (but that's a truly theoretical limit, as Dom0 or a guest likely won't be able to bring up that many due to there only being 4096 event channels; current Linux requires 5-6 of them per vCPU for IPIs and timer vIRQ). Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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