49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from ironic_lib import utils
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from oslo_concurrency import processutils
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from oslo_log import log
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from ironic_python_agent import errors
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LOG = log.getLogger(__name__)
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def stress_ng_cpu(node):
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"""Burn-in the CPU with stress-ng
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Run stress-ng on a configurable number of CPUs for
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a configurable amount of time. Without config use
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all CPUs and stress them for 24 hours.
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:param node: Ironic node object
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:raises: CommandExecutionError if the execution of stress-ng fails.
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"""
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info = node.get('driver_info', {})
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cpu = info.get('agent_burnin_cpu_cpu', 0)
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timeout = info.get('agent_burnin_cpu_timeout', 86400)
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args = ('stress-ng', '--cpu', cpu, '--timeout', timeout,
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'--metrics-brief')
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LOG.debug('Burn-in stress_ng_cpu command: %s', args)
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try:
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_, err = utils.execute(*args)
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# stress-ng reports on stderr only
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LOG.info(err)
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except (processutils.ProcessExecutionError, OSError) as e:
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error_msg = ("stress-ng (cpu) failed with error %(err)s",
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{'err': e})
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LOG.error(error_msg)
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raise errors.CommandExecutionError(error_msg)
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