Framework: Telemetry retake

Signed-off-by: pmikus <pmikus@cisco.com>
Change-Id: I2f019a083916aec9f7816266f6ad5b92dcc31fa0

1 files changed, 130 insertions, 0 deletions

diff --git a/resources/libraries/python/TelemetryUtil.py b/resources/libraries/python/TelemetryUtil.py
new file mode 100644
index 0000000000..3031647915
--- /dev/null
+++ b/resources/libraries/python/TelemetryUtil.py
@@ -0,0 +1,130 @@
+# Copyright (c) 2021 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.OptionString import OptionString
+from resources.libraries.python.ssh import exec_cmd, exec_cmd_no_error
+from resources.libraries.python.topology import NodeType
+
+__all__ = [u"TelemetryUtil"]
+
+
+class TelemetryUtil:
+    """Class contains methods for telemetry 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 as a string separated by comma.
+        :param duration: Measure time in seconds.
+        :type node: dict
+        :type cpu_list: str
+        :type duration: int
+        """
+        if cpu_list:
+            cpu_list = list(dict.fromkeys(cpu_list.split(u",")))
+            cpu_list = ",".join(str(cpu) for cpu in cpu_list)
+
+        cmd_opts = OptionString(prefix=u"--")
+        cmd_opts.add(u"no-aggr")
+        cmd_opts.add_with_value_if(
+            u"cpu", cpu_list, cpu_list
+        )
+        cmd_opts.add_if(
+            u"all-cpus", not(cpu_list)
+        )
+        cmd_opts.add_with_value_if(
+            u"event", f"'{{{Constants.PERF_STAT_EVENTS}}}'",
+            Constants.PERF_STAT_EVENTS
+        )
+        cmd_opts.add_with_value(
+            u"interval-print", 1000
+        )
+        cmd_opts.add_with_value(
+            u"field-separator", u"';'"
+        )
+
+        cmd_base = OptionString()
+        cmd_base.add(f"perf stat")
+        cmd_base.extend(cmd_opts)
+        cmd_base.add(u"--")
+        cmd_base.add_with_value(u"sleep", int(duration))
+
+        exec_cmd(node, cmd_base, 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:
+                TelemetryUtil.perf_stat(
+                    node, cpu_list=cpu_list, duration=duration
+                )
+
+    @staticmethod
+    def run_telemetry(node, profile, hook=None):
+        """Get telemetry stat read for duration.
+
+        :param node: Node in the topology.
+        :param profile: Telemetry configuration profile.
+        :param hook: Process ID or socket path (optional).
+        :type node: dict
+        :type profile: str
+        :type hook: str
+        """
+        config = u""
+        config += f"{Constants.REMOTE_FW_DIR}/"
+        config += f"{Constants.RESOURCES_TPL_TELEMETRY}/"
+        config += f"{profile}"
+
+        cd_cmd = u""
+        cd_cmd += f"sh -c \"cd {Constants.REMOTE_FW_DIR}/"
+        cd_cmd += f"{Constants.RESOURCES_TOOLS}"
+
+        bin_cmd = f"python3 -m telemetry --config {config} --hook {hook}\""
+
+        exec_cmd_no_error(node, f"{cd_cmd} && {bin_cmd}", sudo=True)
+        exec_cmd_no_error(node, f"cat /tmp/metric.prom", sudo=True)
+
+    @staticmethod
+    def run_telemetry_on_all_duts(nodes, profile):
+        """Get telemetry stat read on all DUTs.
+
+        :param nodes: Nodes in the topology.
+        :param profile: Telemetry configuration profile.
+        :param hooks: Dict of Process IDs or socket paths (optional).
+        :type nodes: dict
+        :type profile: str
+        :type hooks: dict
+        """
+        for node in nodes.values():
+            if node[u"type"] == NodeType.DUT:
+                try:
+                    for socket in node[u"sockets"][u"PAPI"].values():
+                        TelemetryUtil.run_telemetry(
+                            node, profile=profile, hook=socket
+                        )
+                except IndexError:
+                    pass