Info on allocating vCPUs on virt-manager

[Satya Prasad Nemana <spn221@xxxxxxxxx>]

Gurus,

I need clarity on what each item means and how it maps to the info we find on dmidecod or lscpu on the host when creating a guest from the virt-manager.

My question:

1) Under CPUs , we have Logical Host CPUs: What number does it indicate? Is the max value that can be configured here the Cores* hyperthreads on the host?

2) Under Topology : we have sockets, cores , threads  : do these correspond to the outputs from dmidecode?

        Socket Designation: Proc 1
        Core Count: 10
        Core Enabled: 10
        Thread Count: 20

3) Under Pinning, we have VCPU, On CPU, Pinning

 : what do these values indicate

does each vcpu value correspond to each virtual cpu on the host (obtained by threads per core * number of cores)
[root@sienna ~]# lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                20
On-line CPU(s) list:   0-19
Thread(s) per core:    2
Core(s) per socket:    10
Socket(s):             1

If there is any detailed documentation anywhere, could someone please point me to that ?

Thanks,

Satya

--

Satya Prasad

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