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...
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to