Re: RFC about socket/cores numbers and HT info

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On Thursday 28 January 2010, Gianluca Cecchi wrote:
> Hello,
> after digging around different systems (Fedora, RHEL) and mailing
> lists suggestions I arrived at this script about identifying on a
> system:
> - number of sockets
> - number of cores per socket
> - number of logical processors (so computational units) seen by OS
> - info about presence/enablement of HT if present
> 
> I would like to share and ask 2 things:
> a) what about the script accuracy?
> Can you verify with your hw setup/config?
> b) Do you think there is any way to enumerate the number of physical
> sockets of a system based only on values in cpuinfo and not using
> dmidecode command? I have a system (not under my control) that
> collects nmon values only for many servers and I would like to be able
> to get the number of sockets ion them based on this info...
> In nmon output I find, other than the cpuinfo info, only something like
> AAA,cpus,4,4
> But it seems quite static where the two numerical values are identical.
> 
> Thanks in advance,
> Gianluca
> 
Ok. I ran it again using sudo and this is the output:

[john@slave1 ~]$ sudo ./count_cpu.sh
Cpu Model: AMD Athlon(tm) 64 X2 Dual Core Processor 6000+
Number of Sockets: 1
Number of Cores per Socket: 2
Number of CPUs seen by OS: 2
Hyper-Threading: NO

Much better, IMO. :-)
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