My understanding is that VMware's Fusion product doesn't expose host MSRs to enable vPMC, which prevents the guest OSes from running tools to collect the MSRs. Using the system view (with baselines vs load), albeit with some inaccuracies, is an alternative to using a different host OS for VMware. However, I ended up using a different host OS to get vPMC access in the guest.
Thank you for the answer, I apologize for the delay in responding.
Sam
ps, I'll file a bug-report to ask for the kernel/user CORE-ACTIVE-CYCLE feedback, though likely this will be low priority given the IA32 nature of the request.
srwarner
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I confirmed kernel_task, PID 0, has %CPU cycles.