Is there a way to reserve a cpu on the host OS?

asked 2015-09-30 03:50:55 -0500

vblando gravatar image

If I have a dual 10 core cpu and giving it a 1:2 cpu_allocation_ratio, that means I have 80 vcpu total capacity, is there a way to take out 2 vcpu and reserve it to the host OS? I checked on CPU pinning but from my understanding it is geared towards guest OS.

edit retag flag offensive close merge delete

2 answers

Sort by ยป oldest newest most voted

answered 2015-09-30 07:45:15 -0500

Not sure of any reservation that can be done for cpu pining for host but memory for specific host could be guaranteed,

edit flag offensive delete link more


I have a compute node that consumed all of the vCPUs and there's a slowdown on the node when that happens

vblando gravatar imagevblando ( 2015-10-04 08:05:45 -0500 )edit

answered 2015-09-30 11:45:45 -0500

dbaxps gravatar image
edit flag offensive delete link more


i was looking for the host OS.

vblando gravatar imagevblando ( 2015-10-04 08:04:49 -0500 )edit

Get to know Ask OpenStack

Resources for moderators

Question Tools

1 follower


Asked: 2015-09-30 03:50:55 -0500

Seen: 971 times

Last updated: Sep 30 '15