Zvi Dubitzky schrieb:
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 ?
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
Zvi Dubitzky
Virtualization and System Architecture Email:dubi@xxxxxxxxxx
IBM Haifa Research Laboratory Phone: +972-4-8296182
Haifa, 31905, ISRAEL
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An Opteron 2210 HE only has two cores. Yours is a single-CPU. Each core
is on Processor, the core-count is of all cores bound together (i.e. in
one socket), also called the siblings in /proc/cpuinfo
2x AMD Opteron 2344 => 8 processors, each entry with 4 cores and 4
siblings (2.6.18-92.1.22.el5)
1x Intel Xeon E5405 => 4 processors, each entry with 4 core and 4
sibling (2.6.18-53.el5)
2x Intel Xeon E5450 => 8 processors, each etnry with 4 cores and 4
siblings (2.6.18-53.el5)
1x Intel Core 2 Duo E6550 => 2 processors, each entry with 2 cores and 2
siblings (2.6.18-128.el5)
1x Intel Core 2 Duo 6400 => 2 processors, each entry with 2 cores and 2
siblings (2.6.18-128.1.6.el5)
1x Intel Core 2 Duo T8300 => 2 processors, each entry with 2 cores and 2
siblings (2.6.18-128.el5)
Nothing unexpected here.
Anyways virNodeGetInfo().cpus returns the correct value in your case and
in all mine tested too, it should be obtained iterating over the
processor-ids as seen in /proc/cpuinfo.
My sole xen-Host returns for his E5405 1 core and 1 sibling for each
processor via /proc/cpuinfo.
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