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[Subhajit Chatterjee <2052713@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Hi,
I have 46 isolated cpus in my server. I have made grub entry for that isolcpus=2-47. I have configured cpu_dedicated_set=6-47 and cpu_shared_set=0-5. But hypervisor is showing 8 vcpus and when I am assigning cpus (the flavor also has cpu_policy=dedicated) to an instance ( only 1 instance is running in the server), it is only assigned into those shared cpus. If I am trying to use more than 8 cpus it is giving error for resource crunch.

Which configuration should I change to make hypervisor discover all cpus
and make dedicated cpus work?

Thanks
Subhajit

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2052713

Title:
  Hypervisor is not able to discover cpu resources from compute

Status in OpenStack Compute (nova):
  New

Bug description:
  Hi,
  I have 46 isolated cpus in my server. I have made grub entry for that isolcpus=2-47. I have configured cpu_dedicated_set=6-47 and cpu_shared_set=0-5. But hypervisor is showing 8 vcpus and when I am assigning cpus (the flavor also has cpu_policy=dedicated) to an instance ( only 1 instance is running in the server), it is only assigned into those shared cpus. If I am trying to use more than 8 cpus it is giving error for resource crunch.

  Which configuration should I change to make hypervisor discover all
  cpus and make dedicated cpus work?

  Thanks
  Subhajit

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