From fcce2ca13e7dacebf719fd9f7a6dcc8fb24f56ef Mon Sep 17 00:00:00 2001 From: Peter Mikus Date: Fri, 10 Jan 2020 12:44:45 +0000 Subject: Performance: TRex approximatedDuration and approximateRate - API to provide duration for send and receive traffic Signed-off-by: Peter Mikus Change-Id: Id186a200be66b7703348e6fd3099ffd405e915ae --- resources/libraries/python/TrafficGenerator.py | 19 +++++++++++++++++-- .../robot/performance/performance_utils.robot | 8 ++++++-- 2 files changed, 23 insertions(+), 4 deletions(-) (limited to 'resources/libraries') diff --git a/resources/libraries/python/TrafficGenerator.py b/resources/libraries/python/TrafficGenerator.py index 4e3a5493bd..539ced584a 100644 --- a/resources/libraries/python/TrafficGenerator.py +++ b/resources/libraries/python/TrafficGenerator.py @@ -151,6 +151,8 @@ class TrafficGenerator(AbstractMeasurer): self._sent = None self._latency = None self._received = None + self._approximated_rate = None + self._approximated_duration = None # Measurement input fields, needed for async stop result. self._start_time = None self._rate = None @@ -204,6 +206,15 @@ class TrafficGenerator(AbstractMeasurer): """ return self._latency + def get_approximated_rate(self): + """Return approximated rate computed as ratio of transmited packets over + duration of trial. + + :returns: Approximated rate. + :rtype: str + """ + return self._approximated_rate + # TODO: pylint says disable=too-many-locals. # A fix is developed in https://gerrit.fd.io/r/c/csit/+/22221 def initialize_traffic_generator( @@ -460,9 +471,12 @@ class TrafficGenerator(AbstractMeasurer): self._received = self._result.split(u", ")[1].split(u"=", 1)[1] self._sent = self._result.split(u", ")[2].split(u"=", 1)[1] self._loss = self._result.split(u", ")[3].split(u"=", 1)[1] + self._approximated_duration = \ + self._result.split(u", ")[5].split(u"=", 1)[1] + self._approximated_rate = self._result.split(u", ")[6].split(u"=", 1)[1] self._latency = list() - self._latency.append(self._result.split(u", ")[4].split(u"=", 1)[1]) - self._latency.append(self._result.split(u", ")[5].split(u"=", 1)[1]) + self._latency.append(self._result.split(u", ")[7].split(u"=", 1)[1]) + self._latency.append(self._result.split(u", ")[8].split(u"=", 1)[1]) def trex_stl_stop_remote_exec(self, node): """Execute script on remote node over ssh to stop running traffic. @@ -748,6 +762,7 @@ class TrafficGenerator(AbstractMeasurer): duration, transmit_rate, transmit_count, loss_count ) measurement.latency = self.get_latency_int() + measurement.approximated_rate = self.get_approximated_rate() return measurement def measure(self, duration, transmit_rate): diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot index 52ddc9193e..ee49b98adf 100644 --- a/resources/libraries/robot/performance/performance_utils.robot +++ b/resources/libraries/robot/performance/performance_utils.robot @@ -379,7 +379,8 @@ | | ... | ${fail_no_traffic}=${True} | ${subsamples}=${PERF_TRIAL_MULTIPLICITY} | | ... | ${traffic_directions}=${2} | ${tx_port}=${0} | ${rx_port}=${1} | | -| | ${results} = | Send traffic at specified rate | ${trial_duration} +| | ${results} | ${approximated_results} = | Send traffic at specified rate +| | ... | ${trial_duration} | | ... | ${max_rate}pps | ${frame_size} | ${traffic_profile} | ${subsamples} | | ... | ${traffic_directions} | ${tx_port} | ${rx_port} | | Set Test Message | ${\n}Maximum Receive Rate trial results @@ -427,6 +428,7 @@ | | Run Keyword If | ${dut_stats}==${True} | | ... | VPP enable elog traces on all DUTs | ${nodes} | | ${results} = | Create List +| | ${approximated_results} = | Create List | | FOR | ${i} | IN RANGE | ${subsamples} | | | # The following line is skipping some default arguments, | | | # that is why subsequent arguments have to be named. @@ -435,8 +437,10 @@ | | | ... | traffic_directions=${traffic_directions} | tx_port=${tx_port} | | | ... | rx_port=${rx_port} | | | ${rx} = | Get Received +| | | ${ar} = | Get Approximated Rate | | | ${rr} = | Evaluate | ${rx} / ${trial_duration} | | | Append To List | ${results} | ${rr} +| | | Append To List | ${approximated_results} | ${ar} | | END | | Run Keyword If | ${dut_stats}==${True} | Show event logger on all DUTs | | ... | ${nodes} @@ -444,7 +448,7 @@ | | ... | ${nodes} | | Run Keyword If | ${dut_stats}==${True} and ${pkt_trace}==${True} | | ... | Show Packet Trace On All Duts | ${nodes} | maximum=${100} -| | Return From Keyword | ${results} +| | Return From Keyword | ${results} | ${approximated_results} | Measure and show latency at specified rate | | [Documentation] -- cgit 1.2.3-korg