Ok, so the conclusion is that tiger can't make the Ocho run to full potential because it doesn't have a smart enough process scheduler... But what if you run some smart, multi-core aware linux install as a virtual machine, in Parallels or VMWare? Would that provide better access to all the cores? I don't know enough about the inner workings of operating systems, or the details of how Parallels/VMWare accesses the CPUs. Anyone have any experience running virtual servers on a multi-core Mac to speak to this? Anyone with an 8-way MP wanna try it out?