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
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