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authorPeter Mikus <pmikus@cisco.com>2020-03-05 11:12:18 +0000
committerPeter Mikus <pmikus@cisco.com>2020-07-31 11:53:19 +0000
commita40195bdda6ec06af8479cfe7d3b3e11d4c9778f (patch)
treeffb43f69629f68a446c3577cb9618cad3bad3e81 /resources/libraries
parent5ba372e3b5066b87e345e5f3b1bb7074e95530d0 (diff)
Framework: Perf stat capturing
Change-Id: I3bbe1fe0073ddeead5219993675f24955e8c3dfd Signed-off-by: Peter Mikus <pmikus@cisco.com>
Diffstat (limited to 'resources/libraries')
-rw-r--r--resources/libraries/python/Constants.py9
-rw-r--r--resources/libraries/python/PerfUtil.py60
-rw-r--r--resources/libraries/robot/performance/performance_utils.robot20
-rw-r--r--resources/libraries/robot/shared/test_teardown.robot5
4 files changed, 84 insertions, 10 deletions
diff --git a/resources/libraries/python/Constants.py b/resources/libraries/python/Constants.py
index a743593387..d1cd45c9fe 100644
--- a/resources/libraries/python/Constants.py
+++ b/resources/libraries/python/Constants.py
@@ -210,6 +210,9 @@ class Constants:
# Core dump directory
CORE_DUMP_DIR = u"/tmp"
+ # Perf stat events (comma separated).
+ PERF_STAT_EVENTS = u"machine_clears.smc"
+
# Equivalent to ~0 used in vpp code
BITWISE_NON_ZERO = 0xffffffff
@@ -226,8 +229,10 @@ class Constants:
PERF_TRIAL_LATENCY_DURATION = get_float_from_env(
u"PERF_TRIAL_LATENCY_DURATION", 5.0)
- # VPP packet trace
- PKT_TRACE = get_pessimistic_bool_from_env(u"PKT_TRACE")
+ # Extended debug (incl. vpp packet trace, linux perf stat, ...).
+ # Full list is available as suite variable (__init__.robot) or is
+ # override by test.
+ EXTENDED_DEBUG = get_pessimistic_bool_from_env(u"EXTENDED_DEBUG")
# UUID string of DUT1 /tmp volume created outside of the
# DUT1 docker in case of vpp-device test. ${EMPTY} value means that
diff --git a/resources/libraries/python/PerfUtil.py b/resources/libraries/python/PerfUtil.py
new file mode 100644
index 0000000000..51832dee48
--- /dev/null
+++ b/resources/libraries/python/PerfUtil.py
@@ -0,0 +1,60 @@
+# Copyright (c) 2020 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Linux perf utility."""
+
+from resources.libraries.python.Constants import Constants
+from resources.libraries.python.ssh import exec_cmd
+from resources.libraries.python.topology import NodeType
+
+__all__ = [u"PerfUtil"]
+
+
+class PerfUtil:
+ """Class contains methods for perf utility."""
+
+ @staticmethod
+ def perf_stat(node, cpu_list=None, duration=1):
+ """Get perf stat read for duration.
+
+ :param node: Node in the topology.
+ :param cpu_list: CPU List.
+ :param duration: Measure time in seconds.
+ :type node: dict
+ :type cpu_list: str
+ :type duration: int
+ """
+ cpu = cpu_list if cpu_list else u"0-$(($(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)
diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot
index 53334edb8f..4c8146e56a 100644
--- a/resources/libraries/robot/performance/performance_utils.robot
+++ b/resources/libraries/robot/performance/performance_utils.robot
@@ -15,6 +15,7 @@
| Library | Collections
| Library | resources.libraries.python.topology.Topology
| Library | resources.libraries.python.NodePath
+| Library | resources.libraries.python.PerfUtil
| Library | resources.libraries.python.InterfaceUtil
| Library | resources.libraries.python.TrafficGenerator
| Library | resources.libraries.python.TrafficGenerator.OptimizedSearch
@@ -28,7 +29,7 @@
*** Variables ***
| ${trial_duration}= | ${PERF_TRIAL_DURATION}
| ${trial_multiplicity}= | ${PERF_TRIAL_MULTIPLICITY}
-| ${pkt_trace}= | ${PKT_TRACE}
+| ${extended_debug}= | ${EXTENDED_DEBUG}
*** Keywords ***
| Find NDR and PDR intervals using optimized search
@@ -423,7 +424,7 @@
| | ... | Type: integer
| | ... | - rx_port - RX port of TG, default 1.
| | ... | Type: integer
-| | ... | - pkt_trace - True to enable packet trace.
+| | ... | - extended_debug- True to enable extended debug.
| | ... | Type: boolean
| |
| | ... | *Example:*
@@ -434,12 +435,12 @@
| | [Arguments] | ${trial_duration} | ${rate} | ${frame_size}
| | ... | ${traffic_profile} | ${trial_multiplicity}=${trial_multiplicity}
| | ... | ${traffic_directions}=${2} | ${tx_port}=${0} | ${rx_port}=${1}
-| | ... | ${pkt_trace}=${pkt_trace}
+| | ... | ${extended_debug}=${extended_debug}
| |
+| | Set Test Variable | ${extended_debug}
| | Clear and show runtime counters with running traffic | ${trial_duration}
| | ... | ${rate} | ${frame_size} | ${traffic_profile}
| | ... | ${traffic_directions} | ${tx_port} | ${rx_port}
-| | Set Test Variable | ${pkt_trace}
| | FOR | ${action} | IN | @{pre_stats}
| | | Run Keyword | Additional Statistics Action For ${action}
| | END
@@ -614,14 +615,14 @@
| | [Documentation]
| | ... | Additional Statistics Action for enable VPP packet trace.
| |
-| | Run Keyword If | ${pkt_trace}==${True}
+| | Run Keyword If | ${extended_debug}==${True}
| | ... | VPP Enable Traces On All DUTs | ${nodes} | fail_on_error=${False}
| Additional Statistics Action For vpp-show-packettrace
| | [Documentation]
| | ... | Additional Statistics Action for show VPP packet trace.
| |
-| | Run Keyword If | ${pkt_trace}==${True}
+| | Run Keyword If | ${extended_debug}==${True}
| | ... | Show Packet Trace On All Duts | ${nodes} | maximum=${100}
| Additional Statistics Action For vpp-enable-elog
@@ -635,3 +636,10 @@
| | ... | Additional Statistics Action for show VPP elog trace.
| |
| | Show Event Logger On All DUTs | ${nodes}
+
+| Additional Statistics Action For bash-perf-stat
+| | [Documentation]
+| | ... | Additional Statistics Action for bash command "perf stat".
+| |
+| | Run Keyword If | ${extended_debug}==${True}
+| | ... | Perf Stat On All DUTs | ${nodes} \ No newline at end of file
diff --git a/resources/libraries/robot/shared/test_teardown.robot b/resources/libraries/robot/shared/test_teardown.robot
index 1174fde9de..e6ddc58c4b 100644
--- a/resources/libraries/robot/shared/test_teardown.robot
+++ b/resources/libraries/robot/shared/test_teardown.robot
@@ -51,8 +51,9 @@
| | ... | Additional teardown for tests which uses performance measurement.
| |
| | Run Keyword If Test Failed
-| | ... | Send traffic at specified rate | ${PERF_TRIAL_DURATION} | 10000pps
-| | ... | ${frame_size} | ${traffic_profile} | pkt_trace=${True}
+| | ... | Send traffic at specified rate | ${1.0} | 10000pps
+| | ... | ${frame_size} | ${traffic_profile} | trial_multiplicity=${1}
+| | ... | extended_debug=${True}
| Additional Test Tear Down Action For packet_trace
| | [Documentation]