+++ /dev/null
-# Copyright (c) 2020 Cisco and/or its affiliates.
-# 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.
-
-"""Linux perf utility."""
-
-from resources.libraries.python.Constants import Constants
-from resources.libraries.python.ssh import exec_cmd
-from resources.libraries.python.topology import NodeType
-
-__all__ = [u"PerfUtil"]
-
-
-class PerfUtil:
- """Class contains methods for perf utility."""
-
- @staticmethod
- def perf_stat(node, cpu_list=None, duration=1):
- """Get perf stat read for duration.
-
- :param node: Node in the topology.
- :param cpu_list: CPU List.
- :param duration: Measure time in seconds.
- :type node: dict
- :type cpu_list: str
- :type duration: int
- """
- cpu = cpu_list if cpu_list else u"0-$(($(nproc) - 1))"
- command = (
- u"perf stat"
- f" --cpu {cpu} --no-aggr"
- f" --event '{{{Constants.PERF_STAT_EVENTS}}}'"
- f" --interval-print 1000 "
- f" -- sleep {int(duration)}"
- )
- exec_cmd(node, command, sudo=True)
-
- @staticmethod
- def perf_stat_on_all_duts(nodes, cpu_list=None, duration=1):
- """Get perf stat read for duration on all DUTs.
-
- :param nodes: Nodes in the topology.
- :param cpu_list: CPU List.
- :param duration: Measure time in seconds.
- :type nodes: dict
- :type cpu_list: str
- :type duration: int
- """
- for node in nodes.values():
- if node[u"type"] == NodeType.DUT:
- PerfUtil.perf_stat(node, cpu_list=cpu_list, duration=duration)