[virt-tools-list] Info on allocating vCPUs on virt-manager
Satya Prasad Nemana
spn221 at gmail.com
Tue Mar 31 11:12:00 UTC 2015
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 at 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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