I was wondering about that myself. The dual Xeon with hyperthreading showed 4 procs but two had a physical id of 0 and the other two had 3. However, my dual PIII has both procs listed with a physical id of 0 even though they are distinct. But of course, there is no ht flag. So maybe the ht flag with physical id is enough??
--Rick On 23 Jul 2003, Robert Walsh wrote: > My understanding is that if the 'physical id' field is present in > /proc/cpuinfo, it indicates the physical processor this hyperthreading > processing is associated with. It's certainly there on 2.4.20-8smp as > shipped by RedHat. It's possible they've patched the kernel for this, > though, as I don't see it on a vanilla 2.5.70 machine I have. > > Regards, > Robert. >
