[SOLVED] choose core to use per vm

[kikigak]

I have 16 threads cpu, is it possible to select cpu core-thead per vm as follows?

VM1 - cpu thread 1-4
VM2 - cpu thread 1-8
VM3 - cpu thread 5-8
VM4 - cpu thread 9-12
VM5 - cpu thread 13-16

TIA

 

[dcsapak]

check out the 'cpu affiniity' for vms (in advanced options for processor settings) see https://pve.proxmox.com/pve-docs/pve-admin-guide.html#qm_virtual_machines_settings

 

[LnxBil]

I have 16 threads cpu, is it possible to select cpu core-thead per vm as follows?

Why would you do such a thing? This is not how virtualization should work. The goal is abstraction not, pinning.

 

[BobhWasatch]

“The real problem is that programmers have spent far too much time worrying about efficiency in the wrong places and at the wrong times; premature optimization is the root of all evil (or at least most of it) in programming.”

- Donald Knuth, The Art of Computer Programming

 

[kikigak]

Why would you do such a thing? This is not how virtualization should work. The goal is abstraction not, pinning.

Just want to isolate because I was wondering why only cpu-thread #3 got 80-100 spike most of the time on htop. Thanks

 

[BobhWasatch]

I would think that would correspond to the highest CPU-user in the list.

ETA: If you hit F2 in htop and go to the Screens category, you can add the processor number to the process listing. This might help you determine what is using CPU #3.