Check CPU Cores

[MaxNL]

Hi everyone.

 

I used the "lscpu" and "cat /proc/cpuinfo" and I got the following:

lscpu

cat /proc/cpuinfo

Architecture:              i686

CPU op-mode(s):        32-bit, 64-bit

CPU(s):                      1

Thread(s) per core:    1

Core(s) per socket:    1

CPU socket(s):          1

Vendor ID:            GenuineIntel

CPU family:            6

Model:                44

Stepping:              2

CPU MHz:              2405.486

Virtualization:        VT-x

L1d cache:            32K

L1i cache:            32K

L2 cache:              256K

L3 cache:              12288K

processor : 0

vendor_id : GenuineIntel

cpu family : 6

model : 44

model name : Intel® Xeon® CPU          E5620  @ 2.40GHz

stepping : 2

microcode : 0x13

cpu MHz : 2405.486

cache size : 12288 KB

physical id : 0

siblings : 1

core id : 0

cpu cores : 1

apicid : 0

initial apicid : 0

fdiv_bug : no

f00f_bug : no

coma_bug : no

fpu : yes

fpu_exception : yes

cpuid level : 11

wp : yes

bogomips : 4810.97

clflush size : 64

cache_alignment : 64

address sizes : 40 bits physical, 48 bits virtual

power management:

 

 

My CPU is an Intel Xeon E5620, shouldn't report 4 cores?

Is there something wrong?

 

Thanks for your help.

Max

[eroz]

What does

nproc

give you?

[MaxNL]

Thanks for taking time to answer.

 

nproc

gives me 1

 

Cheers

Max

[eroz]

Huh....it should report 4.  I don't have a Xeon, so not sure.  Hopefully someone else will chime in.

[MaxNL]

Thank you eroz.

 

Hoe someone can shed a little of light on that.

 

Cheers

Max

[MaxNL]

Looking with more attention to the syslog I've seen the following:

 

Nov 14 18:30:31 MaxMe kernel: Hierarchical RCU implementation.
Nov 14 18:30:31 MaxMe kernel: ^IRCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.

 

Anyone knows it already?

 

Cheers

Max

[eroz]

Looking with more attention to the syslog I've seen the following:

 

Nov 14 18:30:31 MaxMe kernel: Hierarchical RCU implementation.
Nov 14 18:30:31 MaxMe kernel: ^IRCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.

 

Anyone knows it already?

 

Cheers

Max

Possibly a limitation of v5.  Not sure why it is being restricted.

[StevenD]

Mine reports correctly in v6.