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SubjectRe: Xeon processors &&Hyper-Threading
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> You recompile the kernel for SMP as well as P4. If the motherboard
> hasn't disabled HT capabilities, you will take full advantage of
> the processor under Linux. Whatever "full advantage" means, is
> not absolute, but whatever it is, will be used to its fullest.
> Basically, if the code is I/O bound, you'll not see any difference.
> If the code is compute-intensive, you will.

I discovered that you need the 'CPU Enumeration' part of ACPI to be enabled
otherwise the kernel only sees physical processors, not sibling HT processors
- shouldnt this be selected automatically when you select SMP ?
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