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Hardware and Performance / Re: Some suggestions for my new OPNSense (on ESXi host)

« on: May 14, 2016, 10:54:56 pm »

If you assign four vCPU's to a VMware guest it will only be able to run when four physical cores are available on the host.

That's not correct. The ESXi CPU scheduler will actually run an instruction on any available core unless you specifically state to use CPU affinity on a VM - even then it won't "reserve" all the core for a single VM.

http://www.vmware.com/files/pdf/techpaper/VMware-vSphere-CPU-Sched-Perf.pdf