Oracle VM (OVM) (MOSC)

MOSC Banner

OLVM 4.5 /CPU PINNING/ Core IDs

edited Mar 2, 2025 5:30AM in Oracle VM (OVM) (MOSC) 5 commentsAnswered

Hi,

When CPU pinning threads to Cores in my case i have two options.

For example i want to pin my 2 vCPUs to Core 6 on Numa Node 0.

Using "/proc/cpuinfo" it is showing "48,104" resides on core "6".

Using "lscpu" it is showing that my threads "6,62" resides on core "6".

Which threads do I choose and why do we have different Core ids on same OEL8 KVM host using different approach? Maybe because APIC, firmware or OS is giving them different numbering?

awk -F: -f cpu.awk /proc/cpuinfo
numa 0 core 0 : processors 0,56
numa 0 core 1 : processors 16,72
numa 0 core 2 : processors 40,96
numa 0 core 3 : processors 8,64
numa 0 core 4 : processors 24,80

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center