> I have just installed Redhat 9 on a dual-Xeon hyper threading machine. I
> run 'top' and see the expected 4 virtual CPUs, they are labeled as CPU0,
> CPU1, CPU2 and CPU3.
>
> How do I know which two virtual CPUs belong to a single physical CPU?
> I need this info to do cpu binding.
Don't know about Red Hat 9 but under Red Hat 7.3 doing a "cat
/proc/cpuinfo" gives "Physical processor ID" for each processor.
So you should be able to match up those to work out which virtual ones are
which physical processor.
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