Messages in this thread | | | Date | Fri, 14 Sep 2012 15:37:18 +0200 | From | JA Magallón <> | Subject | Inconsistency in /proc/cpuinfo about topology ? |
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Hi...
Probably there is something I don't understand, but it looks to me like an inconsistency in the info given by /proc/cpuinfo about processor/core/thread topology.
For new processors, data seems to account for each 'physycal id', all virtual processors in the same package repeat the same info: - Core i5: physical id : 0 siblings : 4 cpu cores : 4 - Core i3: physical id : 0 siblings : 4 cpu cores : 2 - Dual Xeon X5365 physical id : 0 siblings : 4 cpu cores : 4 physical id : 1 siblings : 4 cpu cores : 4 - Core Q9450 physical id : 0 siblings : 4 cpu cores : 4
but for older CPUs or lower end it is not the same: - Dual P4-Xeon: physical id : 0 siblings : 1 cpu cores : 1 physical id : 0 siblings : 1 cpu cores : 0 physical id : 3 siblings : 1 cpu cores : 1 physical id : 3 siblings : 1 cpu cores : 0
- Single P4 HT: physical id : 0 siblings : 1 cpu cores : 1 physical id : 0 siblings : 1 cpu cores : 0
What am I missing ?
TIA
-- J.A. Magallon <jamagallon()ono!com> \ Winter is coming...
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