36d5633f67
Until we fix the bugs, disable it to get clean runs, and fix our tests to correctly skip if the feature is not available. Change-Id: Ic6ed360ee18e5b000c2305c65e1fb5595a95f196
92 lines
3.8 KiB
Python
92 lines
3.8 KiB
Python
# Copyright 2023 Red Hat
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from tempest.common import waiters
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from tempest import config
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from whitebox_tempest_plugin.api.compute import base
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from whitebox_tempest_plugin import hardware
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from whitebox_tempest_plugin.services import clients
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CONF = config.CONF
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class TestCPUStateMgmt(base.BaseWhiteboxComputeTest):
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"""Test Nova's CPU state management feature, ensuring that CPUs are
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onlined and offlined at the expected times.
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"""
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min_microversion = '2.95'
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@classmethod
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def skip_checks(cls):
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super(TestCPUStateMgmt, cls).skip_checks()
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if not CONF.compute_feature_enabled.cpu_power_management:
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raise cls.skipException(
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'Libvirt CPU power is unavailable, skipping.')
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def setUp(self):
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super(TestCPUStateMgmt, self).setUp()
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self.flavor = self.create_flavor(
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vcpus=1,
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extra_specs={'hw:cpu_policy': 'dedicated'})
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def test_cpu_state(self):
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host = self.list_compute_hosts()[0]
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sysfsclient = clients.SysFSClient(host)
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sm = clients.NovaServiceManager(host, 'nova-compute',
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self.os_admin.services_client)
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dedicated_cpus = sm.get_cpu_dedicated_set()
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shared_cpus = sm.get_cpu_shared_set()
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# Nova offlines all unused cpu's from the dedicated set
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# except for cpu0 because it is not hot pluggable
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# Hence modifying to exclude it avoid false test failures.
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dedicated_cpus.discard(0)
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if len(dedicated_cpus) < 2:
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raise self.skipException('Multiple dedicated CPUs required')
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# Assert that nova-compute disabled dedicated CPUs on startup. In case
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# we didn't have a full set specified, at least make sure that our
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# shared CPUs are in the subset of online CPUs (i.e. we didn't offline
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# any of the shared ones).
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online = sysfsclient.get_sysfs_value('devices/system/cpu/online')
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self.assertTrue(shared_cpus.issubset(hardware.parse_cpu_spec(online)))
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# All our dedicated CPUs should be offlined (this assumes running
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# serially with no other guests using the dedicated CPUs).
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offline_before = hardware.parse_cpu_spec(
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sysfsclient.get_sysfs_value('devices/system/cpu/offline'))
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self.assertEqual(dedicated_cpus, offline_before)
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server = self.create_test_server(clients=self.os_admin,
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flavor=self.flavor['id'],
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host=host,
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wait_until='ACTIVE')
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# Our test server should have caused nova to online our dedicated CPU
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offline_after = hardware.parse_cpu_spec(
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sysfsclient.get_sysfs_value('devices/system/cpu/offline'))
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self.assertLess(offline_after, offline_before)
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self.os_admin.servers_client.delete_server(server['id'])
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waiters.wait_for_server_termination(self.os_admin.servers_client,
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server['id'])
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# Once it is gone, the dedicated CPU should be offline again
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offline_final = hardware.parse_cpu_spec(
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sysfsclient.get_sysfs_value('devices/system/cpu/offline'))
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self.assertEqual(offline_before, offline_final)
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