SMP on x86: Difference between revisions

No edit summary
No edit summary
Line 6: Line 6:
* Interactions with [[cpuid]]
* Interactions with [[cpuid]]
* HyperThreading requires CPU, BIOS and OS support. It's found on some P4's and Core2Duo's, especially from the Xeon line.
* HyperThreading requires CPU, BIOS and OS support. It's found on some P4's and Core2Duo's, especially from the Xeon line.
<pre>[recombinator](0) $ sudo virsh nodeinfo
CPU model:          x86_64
CPU(s):              2
CPU frequency:      1596 MHz
CPU socket(s):      1
Core(s) per socket:  2
Thread(s) per core:  1
NUMA cell(s):        1
Memory size:        3908568 kB
[recombinator](0) $ </pre>


==/proc/cpuinfo==
==/proc/cpuinfo==
Line 269: Line 257:
Memory size:        66113480 kB
Memory size:        66113480 kB
[wopr](0) $ </pre>
[wopr](0) $ </pre>
<pre>[recombinator](0) $ sudo virsh nodeinfo
CPU model:          x86_64
CPU(s):              2
CPU frequency:      1596 MHz
CPU socket(s):      1
Core(s) per socket:  2
Thread(s) per core:  1
NUMA cell(s):        1
Memory size:        3908568 kB
[recombinator](0) $ </pre>


==See also==
==See also==
* [http://osdir.com/ml/linux.ports.x86-64.general/2005-10/msg00022.html This LKML thread] provides much information
* [http://osdir.com/ml/linux.ports.x86-64.general/2005-10/msg00022.html This LKML thread] provides much information