On Fri, Apr 17, 2009 at 03:43:49PM +0300, Zvi Dubitzky wrote:
> virNodeGetInfo() returns .cpus as 2 but the /proc/cpuinfo of the node
> shows 2 processors with 2 cores each ('cpu cores') . Or maybe the 'core
> id' is what
> counts in the /proc/cpuinfo and that one gets vaue 0 , 1 only i.e
> totally 2
>
> can you clarify ?
What libvirt driver are you using ? QEMU or Xen. The answer can be quite
complicated. In essence, for Xen, the /proc/cpuinfo does *not* reflect your
actual physical CPU topology. So for Xen we get the real data from the
hypervisor directly. For QEMU, libvirt just parses /proc/cpuinfo.
Your cpuinfo output below, shows 1 physical CPU with 2 cores
>
> Here is the output of /proc/cpuinfo:
>
> processor : 0
> vendor_id : AuthenticAMD
> cpu family : 15
> model : 65
> model name : Dual-Core AMD Opteron(tm) Processor 2210 HE
> stepping : 2
> cpu MHz : 1800.034
> cache size : 1024 KB
> physical id : 0
> siblings : 2
> core id : 0
> cpu cores : 2
> apicid : 0
> initial apicid : 0
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
> rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic
> cr8_legacy
> bogomips : 3600.06
> clflush size : 64
> power management: ts fid vid ttp tm stc
>
> processor : 1
> vendor_id : AuthenticAMD
> cpu family : 15
> model : 65
> model name : Dual-Core AMD Opteron(tm) Processor 2210 HE
> stepping : 2
> cpu MHz : 1800.034
> cache size : 1024 KB
> physical id : 0
> siblings : 2
> core id : 1
> cpu cores : 2
> apicid : 1
> initial apicid : 1
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
> rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic
> cr8_legacy
> bogomips : 3600.23
> clflush size : 64
> power management: ts fid vid ttp tm stc
Daniel
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
--
Libvir-list mailing list
Libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list