yahoo-eng-team team mailing list archive

[Dmitriy Rabotyagov <1966452@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

When instance is being created from flavor with `--property
resources:PCPU=4`, generated XML doesn't include vcpupin directives that
basically does pinning.

Instead only <vcpu placement='static'>4</vcpu> is present in libvirt for
flavor with PCPU resource.

Nova version: Xena

Sample flavor that's being used:
+----------------------------+----------------------------------------------------+
| Field                      | Value                                              |
+----------------------------+----------------------------------------------------+
| OS-FLV-DISABLED:disabled   | False                                              |
| OS-FLV-EXT-DATA:ephemeral  | 0                                                  |
| description                | None                                               |
| disk                       | 50                                                 |
| id                         | 7d4455db-8d5e-4067-8c7d-2e0eb0d642f1               |
| name                       | cpu-high-flavor_test                               |
| os-flavor-access:is_public | True                                               |
| properties                 | resouces:PCPU='4', trait:CUSTOM_HIGHCPU='required' |
| ram                        | 2048                                               |
| rxtx_factor                | 1.0                                                |
| swap                       |                                                    |
| vcpus                      | 4                                                  |
+----------------------------+----------------------------------------------------+

Generated XML will be attached.

** Affects: nova
     Importance: High
         Status: New

** Attachment added: "pcpu_domain.xml"
   https://bugs.launchpad.net/bugs/1966452/+attachment/5572936/+files/pcpu_domain.xml

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https://bugs.launchpad.net/bugs/1966452

Title:
  Using resources:PCPU property does not result in CPU pinning

Status in OpenStack Compute (nova):
  New

Bug description:
  When instance is being created from flavor with `--property
  resources:PCPU=4`, generated XML doesn't include vcpupin directives
  that basically does pinning.

  Instead only <vcpu placement='static'>4</vcpu> is present in libvirt
  for flavor with PCPU resource.

  Nova version: Xena

  Sample flavor that's being used:
  +----------------------------+----------------------------------------------------+
  | Field                      | Value                                              |
  +----------------------------+----------------------------------------------------+
  | OS-FLV-DISABLED:disabled   | False                                              |
  | OS-FLV-EXT-DATA:ephemeral  | 0                                                  |
  | description                | None                                               |
  | disk                       | 50                                                 |
  | id                         | 7d4455db-8d5e-4067-8c7d-2e0eb0d642f1               |
  | name                       | cpu-high-flavor_test                               |
  | os-flavor-access:is_public | True                                               |
  | properties                 | resouces:PCPU='4', trait:CUSTOM_HIGHCPU='required' |
  | ram                        | 2048                                               |
  | rxtx_factor                | 1.0                                                |
  | swap                       |                                                    |
  | vcpus                      | 4                                                  |
  +----------------------------+----------------------------------------------------+

  Generated XML will be attached.

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