nova/nova/tests/unit/objects/test_instance_numa.py

240 lines
9.3 KiB
Python

# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import copy
import mock
from oslo_utils.fixture import uuidsentinel as uuids
from oslo_versionedobjects import base as ovo_base
from nova import exception
from nova import objects
from nova.objects import fields
from nova.tests.unit.objects import test_objects
fake_instance_uuid = uuids.fake
fake_obj_numa_topology = objects.InstanceNUMATopology(
instance_uuid = fake_instance_uuid,
cells=[
objects.InstanceNUMACell(
id=0, cpuset=set([1, 2]), memory=512, pagesize=2048),
objects.InstanceNUMACell(
id=1, cpuset=set([3, 4]), memory=512, pagesize=2048)
])
fake_db_topology = {
'created_at': None,
'updated_at': None,
'deleted_at': None,
'deleted': 0,
'id': 1,
'instance_uuid': fake_instance_uuid,
'numa_topology': fake_obj_numa_topology._to_json()
}
def get_fake_obj_numa_topology(context):
fake_obj_numa_topology_cpy = fake_obj_numa_topology.obj_clone()
fake_obj_numa_topology_cpy._context = context
return fake_obj_numa_topology_cpy
class _TestInstanceNUMACell(object):
def test_siblings(self):
inst_cell = objects.InstanceNUMACell(
cpuset=set([0, 1, 2]))
self.assertEqual([], inst_cell.siblings)
topo = objects.VirtCPUTopology(sockets=1, cores=3, threads=0)
inst_cell = objects.InstanceNUMACell(
cpuset=set([0, 1, 2]), cpu_topology=topo)
self.assertEqual([], inst_cell.siblings)
# One thread actually means no threads
topo = objects.VirtCPUTopology(sockets=1, cores=3, threads=1)
inst_cell = objects.InstanceNUMACell(
cpuset=set([0, 1, 2]), cpu_topology=topo)
self.assertEqual([], inst_cell.siblings)
topo = objects.VirtCPUTopology(sockets=1, cores=2, threads=2)
inst_cell = objects.InstanceNUMACell(
cpuset=set([0, 1, 2, 3]), cpu_topology=topo)
self.assertEqual([set([0, 1]), set([2, 3])], inst_cell.siblings)
topo = objects.VirtCPUTopology(sockets=1, cores=1, threads=4)
inst_cell = objects.InstanceNUMACell(
cpuset=set([0, 1, 2, 3]), cpu_topology=topo)
self.assertEqual([set([0, 1, 2, 3])], inst_cell.siblings)
def test_pin(self):
inst_cell = objects.InstanceNUMACell(cpuset=set([0, 1, 2, 3]),
cpu_pinning=None)
inst_cell.pin(0, 14)
self.assertEqual({0: 14}, inst_cell.cpu_pinning)
inst_cell.pin(12, 14)
self.assertEqual({0: 14}, inst_cell.cpu_pinning)
inst_cell.pin(1, 16)
self.assertEqual({0: 14, 1: 16}, inst_cell.cpu_pinning)
def test_pin_vcpus(self):
inst_cell = objects.InstanceNUMACell(cpuset=set([0, 1, 2, 3]),
cpu_pinning=None)
inst_cell.pin_vcpus((0, 14), (1, 15), (2, 16), (3, 17))
self.assertEqual({0: 14, 1: 15, 2: 16, 3: 17}, inst_cell.cpu_pinning)
def test_cpu_pinning_requested(self):
inst_cell = objects.InstanceNUMACell(cpuset=set([0, 1, 2, 3]),
cpu_pinning=None)
self.assertFalse(inst_cell.cpu_pinning_requested)
inst_cell.cpu_policy = fields.CPUAllocationPolicy.DEDICATED
self.assertTrue(inst_cell.cpu_pinning_requested)
def test_cpu_pinning(self):
topo_obj = get_fake_obj_numa_topology(self.context)
self.assertEqual(set(), topo_obj.cpu_pinning)
topo_obj.cells[0].pin_vcpus((1, 10), (2, 11))
self.assertEqual(set([10, 11]), topo_obj.cpu_pinning)
topo_obj.cells[1].pin_vcpus((3, 0), (4, 1))
self.assertEqual(set([0, 1, 10, 11]), topo_obj.cpu_pinning)
def test_clear_host_pinning(self):
topo_obj = get_fake_obj_numa_topology(self.context)
topo_obj.cells[0].pin_vcpus((1, 10), (2, 11))
topo_obj.cells[0].id = 3
topo_obj.cells[1].pin_vcpus((3, 0), (4, 1))
topo_obj.cells[1].id = 0
topo_obj.clear_host_pinning()
self.assertEqual({}, topo_obj.cells[0].cpu_pinning)
self.assertEqual(-1, topo_obj.cells[0].id)
self.assertEqual({}, topo_obj.cells[1].cpu_pinning)
self.assertEqual(-1, topo_obj.cells[1].id)
def test_emulator_threads_policy(self):
topo_obj = get_fake_obj_numa_topology(self.context)
self.assertFalse(topo_obj.emulator_threads_isolated)
topo_obj.emulator_threads_policy = (
fields.CPUEmulatorThreadsPolicy.ISOLATE)
self.assertTrue(topo_obj.emulator_threads_isolated)
def test_obj_make_compatible_numa_cell_pre_1_4(self):
topo_obj = objects.InstanceNUMACell(
cpuset_reserved=set([1, 2]))
versions = ovo_base.obj_tree_get_versions('InstanceNUMACell')
data = lambda x: x['nova_object.data']
primitive = data(topo_obj.obj_to_primitive(target_version='1.4',
version_manifest=versions))
self.assertIn('cpuset_reserved', primitive)
primitive = data(topo_obj.obj_to_primitive(target_version='1.3',
version_manifest=versions))
self.assertNotIn('cpuset_reserved', primitive)
class TestInstanceNUMACell(
test_objects._LocalTest, _TestInstanceNUMACell,
):
pass
class TestInstanceNUMACellRemote(
test_objects._RemoteTest, _TestInstanceNUMACell,
):
pass
class _TestInstanceNUMATopology(object):
@mock.patch('nova.db.api.instance_extra_update_by_uuid')
def test_create(self, mock_update):
topo_obj = get_fake_obj_numa_topology(self.context)
topo_obj.instance_uuid = fake_db_topology['instance_uuid']
topo_obj.create()
self.assertEqual(1, len(mock_update.call_args_list))
def _test_get_by_instance_uuid(self):
numa_topology = objects.InstanceNUMATopology.get_by_instance_uuid(
self.context, fake_db_topology['instance_uuid'])
self.assertEqual(fake_db_topology['instance_uuid'],
numa_topology.instance_uuid)
for obj_cell, topo_cell in zip(
numa_topology.cells, fake_obj_numa_topology['cells']):
self.assertIsInstance(obj_cell, objects.InstanceNUMACell)
self.assertEqual(topo_cell.id, obj_cell.id)
self.assertEqual(topo_cell.cpuset, obj_cell.cpuset)
self.assertEqual(topo_cell.memory, obj_cell.memory)
self.assertEqual(topo_cell.pagesize, obj_cell.pagesize)
@mock.patch('nova.db.api.instance_extra_get_by_instance_uuid')
def test_get_by_instance_uuid(self, mock_get):
mock_get.return_value = fake_db_topology
self._test_get_by_instance_uuid()
@mock.patch('nova.db.api.instance_extra_get_by_instance_uuid')
def test_get_by_instance_uuid_missing(self, mock_get):
mock_get.return_value = None
self.assertRaises(
exception.NumaTopologyNotFound,
objects.InstanceNUMATopology.get_by_instance_uuid,
self.context, 'fake_uuid')
def test_cpu_pinning_requested(self):
fake_topo_obj = copy.deepcopy(fake_obj_numa_topology)
self.assertFalse(fake_topo_obj.cpu_pinning_requested)
for cell in fake_topo_obj.cells:
cell.cpu_policy = fields.CPUAllocationPolicy.DEDICATED
self.assertTrue(fake_topo_obj.cpu_pinning_requested)
def test_cpuset_reserved(self):
topology = objects.InstanceNUMATopology(
instance_uuid=fake_instance_uuid,
cells=[
objects.InstanceNUMACell(
id=0, cpuset=set([1, 2]), memory=512, pagesize=2048,
cpuset_reserved=set([3, 7])),
objects.InstanceNUMACell(
id=1, cpuset=set([3, 4]), memory=512, pagesize=2048,
cpuset_reserved=set([9, 12]))
])
self.assertEqual(set([3, 7]), topology.cells[0].cpuset_reserved)
self.assertEqual(set([9, 12]), topology.cells[1].cpuset_reserved)
def test_obj_make_compatible_numa_pre_1_3(self):
topo_obj = objects.InstanceNUMATopology(
emulator_threads_policy=(
fields.CPUEmulatorThreadsPolicy.ISOLATE))
versions = ovo_base.obj_tree_get_versions('InstanceNUMATopology')
primitive = topo_obj.obj_to_primitive(target_version='1.2',
version_manifest=versions)
self.assertNotIn(
'emulator_threads_policy', primitive['nova_object.data'])
topo_obj = objects.InstanceNUMATopology.obj_from_primitive(primitive)
self.assertFalse(topo_obj.emulator_threads_isolated)
class TestInstanceNUMATopology(
test_objects._LocalTest, _TestInstanceNUMATopology,
):
pass
class TestInstanceNUMATopologyRemote(
test_objects._RemoteTest, _TestInstanceNUMATopology,
):
pass