[Starlingx-discuss] vcpus didn't recognize correctly after turning on hyper-threading

[Xu, YizhouX]

Hi all:
               I'm testing with a  AIO node(iso version:20190607T142331Z). To meet increasing vcpu requirments, I turn on hyper-threading(ht) in BIOS configuration.
Now the cpu num of system have been twice as much as before(12), but the num of vcpu did not changed(still 4).

Relating to problem:

1.      The num of cpu is correct in libvirtd container, check it with 'kube exec -it pod_id lscpu'

2.      Checking cpu with `system host-cpu-list` ,and seems it had allocated new added cpu to applications and platform separately correct.

[wrsroot at controller-0 ~(keystone_admin)]$ system host-cpu-list controller-0

+--------------------------------------+-------+-----------+-------+--------+------------------------------------------+-------------------+

| uuid                                 | log_c | processor | phy_c | thread | processor_model                          | assigned_function |

|                                      | ore   |           | ore   |        |                                          |                   |

+--------------------------------------+-------+-----------+-------+--------+------------------------------------------+-------------------+

| e7e806d7-10c2-44bd-9577-fef092b7bd75 | 0     | 0         | 0     | 0      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Platform          |

| 10ba7e55-742a-400d-8e41-15b5e7632c9f | 1     | 0         | 1     | 0      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Platform          |

| 075e8684-43b0-43e9-b8cd-2cbcc6cf06d9 | 2     | 0         | 2     | 0      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Shared            |

| 44c91151-5d32-4510-9003-6466fb9416a4 | 3     | 0         | 3     | 0      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Applications      |

| b44109e1-fa68-49dd-9d0c-317f4e9dd657 | 4     | 0         | 4     | 0      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Applications      |

| dc415b71-181b-4af4-886a-1a6361de027b | 5     | 0         | 5     | 0      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Applications      |

| eb176953-6675-4dbc-88ea-2b5776fea851 | 6     | 0         | 0     | 1      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Platform          |

| 8494b17a-bc06-4400-b4cb-55413d05d653 | 7     | 0         | 1     | 1      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Platform          |

| 32dacf3f-1248-45ea-a122-a4925604ab42 | 8     | 0         | 2     | 1      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Shared            |

| 966d3b34-7a61-4b6b-9c46-b30ece4b27b1 | 9     | 0         | 3     | 1      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Applications      |

| c6f57b41-5a41-4536-9221-b111511306ad | 10    | 0         | 4     | 1      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Applications      |

| ffd2eb6f-7ebe-4ce6-95b0-066d6ab47f56 | 11    | 0         | 5     | 1      | Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz | Applications      |

+--------------------------------------+-------+-----------+-------+--------+------------------------------------------+-------------------+

3.      Item "cpu_allocation_ratio"  in nova.conf '  is 16,seem it not works

Best Regards,
Xu, YiZhou

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