aaedbbe0eb
We need more statistics, including IPC, cache references and cache misses, to do performance tuning. This patch introduces four new meters to get them. Change-Id: Icb21eeed0e004450556176d01520784acd98002e
101 lines
4.0 KiB
Python
101 lines
4.0 KiB
Python
# Copyright 2016 Intel
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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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import mock
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from ceilometer.agent import manager
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from ceilometer.agent import plugin_base
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from ceilometer.compute.pollsters import perf
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from ceilometer.compute.virt import inspector as virt_inspector
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from ceilometer.tests.unit.compute.pollsters import base
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class TestPerfEventsPollster(base.TestPollsterBase):
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def setUp(self):
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super(TestPerfEventsPollster, self).setUp()
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@mock.patch('ceilometer.pipeline.setup_pipeline', mock.MagicMock())
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def test_get_samples(self):
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fake_value = virt_inspector.PerfEventsStats(cpu_cycles=7259361,
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instructions=8815623,
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cache_references=74184,
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cache_misses=16737)
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def inspect_perf_events(instance, duration):
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return fake_value
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self.inspector.inspect_perf_events = mock.Mock(
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side_effect=inspect_perf_events)
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mgr = manager.AgentManager()
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def _check_perf_events_cpu_cycles(expected_usage):
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pollster = perf.PerfEventsCPUCyclesPollster()
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samples = list(pollster.get_samples(mgr, {}, [self.instance]))
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self.assertEqual(1, len(samples))
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self.assertEqual(set(['perf.cpu.cycles']),
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set([s.name for s in samples]))
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self.assertEqual(expected_usage, samples[0].volume)
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def _check_perf_events_instructions(expected_usage):
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pollster = perf.PerfEventsInstructionsPollster()
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samples = list(pollster.get_samples(mgr, {}, [self.instance]))
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self.assertEqual(1, len(samples))
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self.assertEqual(set(['perf.instructions']),
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set([s.name for s in samples]))
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self.assertEqual(expected_usage, samples[0].volume)
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def _check_perf_events_cache_references(expected_usage):
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pollster = perf.PerfEventsCacheReferencesPollster()
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samples = list(pollster.get_samples(mgr, {}, [self.instance]))
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self.assertEqual(1, len(samples))
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self.assertEqual(set(['perf.cache.references']),
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set([s.name for s in samples]))
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self.assertEqual(expected_usage, samples[0].volume)
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def _check_perf_events_cache_misses(expected_usage):
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pollster = perf.PerfEventsCacheMissesPollster()
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samples = list(pollster.get_samples(mgr, {}, [self.instance]))
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self.assertEqual(1, len(samples))
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self.assertEqual(set(['perf.cache.misses']),
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set([s.name for s in samples]))
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self.assertEqual(expected_usage, samples[0].volume)
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_check_perf_events_cpu_cycles(7259361)
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_check_perf_events_instructions(8815623)
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_check_perf_events_cache_references(74184)
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_check_perf_events_cache_misses(16737)
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@mock.patch('ceilometer.pipeline.setup_pipeline', mock.MagicMock())
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def test_get_samples_with_empty_stats(self):
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def inspect_perf_events(instance, duration):
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raise virt_inspector.NoDataException()
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self.inspector.inspect_perf_events = mock.Mock(
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side_effect=inspect_perf_events)
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mgr = manager.AgentManager()
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pollster = perf.PerfEventsCPUCyclesPollster()
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def all_samples():
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return list(pollster.get_samples(mgr, {}, [self.instance]))
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self.assertRaises(plugin_base.PollsterPermanentError,
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all_samples)
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