X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=resources%2Flibraries%2Frobot%2Fperformance%2Fperformance_utils.robot;h=96b0e0e4305a16c5c6e2af9ebc0030f1f4bfcdea;hp=e9eab2c08b42c8b851e2ca3b2e921ab92745ddc8;hb=b623785eb9ecaf0657e8f6ca6898dabdc5381128;hpb=752a4c3304581fa375f520fdb15a9f87604e11be

diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot
index e9eab2c08b..96b0e0e430 100644
--- a/resources/libraries/robot/performance/performance_utils.robot
+++ b/resources/libraries/robot/performance/performance_utils.robot
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Cisco and/or its affiliates.
+# 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:
@@ -15,421 +15,637 @@
 | Library | Collections
 | Library | resources.libraries.python.topology.Topology
 | Library | resources.libraries.python.NodePath
-| Library | resources.libraries.python.DpdkUtil
 | Library | resources.libraries.python.InterfaceUtil
-| Library | resources.libraries.python.KubernetesUtils
-| Library | resources.libraries.python.VhostUser
+| Library | resources.libraries.python.Iperf3
+| Library | resources.libraries.python.TelemetryUtil
 | Library | resources.libraries.python.TrafficGenerator
 | Library | resources.libraries.python.TrafficGenerator.OptimizedSearch
 | Library | resources.libraries.python.TrafficGenerator.TGDropRateSearchImpl
 | Library | resources.libraries.python.Trace
-| Resource | resources/libraries/robot/shared/default.robot
-| Resource | resources/libraries/robot/shared/interfaces.robot
-| Resource | resources/libraries/robot/shared/counters.robot
-| Resource | resources/libraries/robot/shared/container.robot
-| Resource | resources/libraries/robot/shared/memif.robot
-| Resource | resources/libraries/robot/l2/l2_bridge_domain.robot
-| Resource | resources/libraries/robot/l2/l2_xconnect.robot
-| Resource | resources/libraries/robot/ip/ip4.robot
-| Resource | resources/libraries/robot/ip/ip6.robot
-| Resource | resources/libraries/robot/l2/tagging.robot
-| Documentation | Performance suite keywords - utilities to find and verify NDR
-| ... | and PDR.
+| Variables | resources/libraries/python/Constants.py
+| Resource | resources/libraries/robot/performance/performance_actions.robot
+| Resource | resources/libraries/robot/performance/performance_display.robot
+| Resource | resources/libraries/robot/performance/performance_vars.robot
+|
+| Documentation
+| ... | Performance suite keywords - utilities to find and verify NDR and PDR.
+| ... | See performance_vars.robot for values accessed via there.
+
+*** Variables ***
+| # Variable holding multiplicator of main heap size. By default it is set to 1
+| # that means the main heap size will be set to 2G. Some tests may require more
+| # memory for IP FIB (e.g. nat44det tests with 4M or 16M sessions).
+| ${heap_size_mult}= | ${1}
 
 *** Keywords ***
-| Find NDR and PDR intervals using optimized search
+| Find critical load using PLRsearch
 | | [Documentation]
-| | ... | Find boundaries for RFC2544 compatible NDR and PDR values
-| | ... | using an optimized search algorithm.
+| | ... | Find boundaries for troughput (of hardcoded target loss ratio)
+| | ... | using PLRsearch algorithm.
 | | ... | Display results as formatted test message.
-| | ... | Fail if a resulting lower bound has too high loss fraction.
-| | ... | Input rates are understood as uni-directional,
-| | ... | reported result contains bi-directional rates.
-| | ... | Currently, the min_rate value is hardcoded to match test teardowns.
-| | ...
-| | ... | TODO: Should the trial duration of the additional
-| | ... | measurements be configurable?
-| | ...
-| | ... | Some inputs are read from variables to streamline suites.
-| | ...
+| | ... | Fail if computed lower bound is 110% of the minimal rate or less.
+| | ... | Input rates are unidirectional, in transaction per second.
+| | ... | Reported result may contain aggregate pps rates, depending on test.
+| | ... | Call \${resetter} (if defined) to reset DUT state before each trial.
+| |
 | | ... | *Test (or broader scope) variables read:*
 | | ... | - traffic_profile - Name of module defining traffc for measurements.
 | | ... | Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | | ... | - max_rate - Calculated unidirectional maximal transmit rate [pps].
 | | ... | Type: float
-| | ...
-| | ... | *Arguments:*
-| | ... | - packet_loss_ratio - Accepted loss during search. Type: float
-| | ... | - final_relative_width - Maximal width multiple of upper. Type: float
-| | ... | - final_trial_duration - Duration of final trials [s]. Type: float
-| | ... | - initial_trial_duration - Duration of initial trials [s]. Type: float
-| | ... | - intermediate phases - Number of intermediate phases [1]. Type: int
-| | ... | - timeout - Fail if search duration is longer [s]. Type: float
-| | ... | - doublings - How many doublings to do when expanding [1]. Type: int
-| | ...
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Find NDR and PDR intervals using optimized search \| \${0.005}
-| | ... | \| \${0.005} \| \${30.0} \| \${1.0} \| \${2} \| ${600.0} \| ${2} \|
-| | ...
-| | [Arguments] | ${packet_loss_ratio}=${0.005}
-| | ... | ${final_relative_width}=${0.005} | ${final_trial_duration}=${30.0}
-| | ... | ${initial_trial_duration}=${1.0}
-| | ... | ${number_of_intermediate_phases}=${2} | ${timeout}=${720.0}
-| | ... | ${doublings}=${2}
-| | ...
-| | ${result} = | Perform optimized ndrpdr search | ${frame_size}
-| | ... | ${traffic_profile} | ${20000} | ${max_rate*2}
-| | ... | ${packet_loss_ratio} | ${final_relative_width}
-| | ... | ${final_trial_duration} | ${initial_trial_duration}
-| | ... | ${number_of_intermediate_phases} | timeout=${timeout}
-| | ... | doublings=${doublings}
-| | Display result of NDRPDR search | ${result} | ${frame_size}
-| | Check NDRPDR interval validity | ${result.pdr_interval}
-| | ... | ${packet_loss_ratio}
-| | Check NDRPDR interval validity | ${result.ndr_interval}
-| | Perform additional measurements based on NDRPDR result
-| | ... | ${result} | ${frame_size} | ${traffic_profile}
+| |
+| | ... | \| Find critical load using PLR search \|
+| |
+| | # Get values via performance_vars.
+| | ${max_rate} = | Get Max Rate
+| | ${min_rate_soft} = | Get Min Rate Soft
+| | ${ppta} = | Get Packets Per Transaction Aggregated
+| | ${ramp_up_duration} = | Get Ramp Up Duration
+| | ${ramp_up_rate} = | Get Ramp Up Rate
+| | ${resetter} = | Get Resetter
+| | ${traffic_directions} = | Get Traffic Directions
+| | ${transaction_duration} = | Get Transaction Duration
+| | ${transaction_scale} = | Get Transaction Scale
+| | ${transaction_type} = | Get Transaction Type
+| | ${use_latency} = | Get Use Latency
+| | ${average} | ${stdev} = | Perform soak search
+| | ... | frame_size=${frame_size}
+| | ... | traffic_profile=${traffic_profile}
+| | ... | minimum_transmit_rate=${min_rate_soft}
+| | ... | maximum_transmit_rate=${max_rate}
+| | ... | plr_target=${1e-7}
+| | ... | tdpt=${0.1}
+| | ... | initial_count=${50}
+| | ... | ppta=${ppta}
+| | ... | resetter=${resetter}
+| | ... | timeout=${1800.0}
+| | ... | trace_enabled=${False}
+| | ... | traffic_directions=${traffic_directions}
+| | ... | transaction_scale=${transaction_scale}
+| | ... | transaction_duration=${transaction_duration}
+| | ... | transaction_type=${transaction_type}
+| | ... | use_latency=${use_latency}
+| | ... | ramp_up_duration=${ramp_up_duration}
+| | ... | ramp_up_rate=${ramp_up_rate}
+| | ${lower} | ${upper} = | Display result of soak search
+| | ... | ${average} | ${stdev}
+| | Set Test Variable | \${rate for teardown} | ${lower}
+| | Should Not Be True | 1.1 * ${min_rate_soft} > ${lower}
+| | ... | Lower bound ${lower} too small for unidir minimum ${min_rate_soft}.
 
-| Find critical load using PLRsearch
+| Find NDR and PDR intervals using optimized search
 | | [Documentation]
-| | ... | Find boundaries for troughput (of given target loss ratio)
-| | ... | using PLRsearch algorithm.
-| | ... | Display results as formatted test message.
-| | ... | Fail if computed lower bound is below minimal rate.
-| | ... | Input rates are understood as uni-directional,
-| | ... | reported result contains bi-directional rates.
-| | ... | Currently, the min_rate value is hardcoded to match test teardowns.
-| | ... | Some inputs are read from variables to streamline suites.
-| | ...
+| | ... | Find boundaries for RFC2544 compatible NDR and PDR values
+| | ... | using an optimized search algorithm.
+| | ... | Display findings as a formatted test message.
+| | ... | Fail if a resulting lower bound has too high loss ratio.
+| | ... | Input rates are unidirectional, in transaction per second.
+| | ... | Reported result may contain aggregate pps rates, depending on test.
+| | ... | Additional latency measurements are performed for smaller loads,
+| | ... | even if latency stream is disabled in search. Their results
+| | ... | are also displayed.
+| | ... | Finally, two measurements for runtime stats are done (not displayed).
+| | ... | Call \${resetter} (if defined) to reset DUT state before each trial.
+| |
 | | ... | *Test (or broader scope) variables read:*
 | | ... | - traffic_profile - Name of module defining traffc for measurements.
 | | ... | Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
-| | ... | - max_rate - Calculated unidirectional maximal transmit rate [pps].
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
+| | ... | - max_rate - Calculated maximal unidirectional transmit rate [tps].
 | | ... | Type: float
-| | ...
-| | ... | *Arguments:*
-| | ... | - packet_loss_ratio - Accepted loss during search. Type: float
-| | ... | - timeout - Stop when search duration is longer [s]. Type: float
-| | ...
+| | ... | - resetter - Callable to reset DUT state before each trial.
+| | ... | - transaction_scale - Number of ASTF transaction (zero if unlimited).
+| | ... | - transaction_type - String identifier to determine how to count
+| | ... | transactions. Default is "packet".
+| | ... | - disable_latency - If true, skip anything related to latency.
+| | ... | Useful if transaction_scale is high and TPS is low. Default: false.
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Find critical load using PLR search \| \${1e-7} \| \${120} \|
-| | ...
-| | [Arguments] | ${packet_loss_ratio}=${1e-7} | ${timeout}=${7200.0}
-| | ...
-| | ${min_rate} = | Set Variable | ${20000}
-| | ${average} | ${stdev} = | Perform soak search | ${frame_size}
-| | ... | ${traffic_profile} | ${min_rate} | ${max_rate*2}
-| | ... | ${packet_loss_ratio} | timeout=${timeout}
-| | ${lower} | ${upper} = | Display result of soak search
-| | ... | ${average} | ${stdev} | ${frame_size}
-| | Should Not Be True | ${lower} < ${min_rate}
-| | ... | Lower bound ${lower} is below bidirectional minimum ${min_rate}.
+| |
+| | ... | \| Find NDR and PDR intervals using optimized search \|
+| |
+| | # Get values via performance_vars.
+| | ${disable_latency} = | Get Disable Latency
+| | ${max_rate} = | Get Max Rate
+| | ${min_rate_soft} = | Get Min Rate Soft
+| | # \${packet_loss_ratio} is used twice so it is worth a variable.
+| | ${packet_loss_ratio} = | Get Packet Loss Ratio
+| | ${ppta} = | Get Packets Per Transaction Aggregated
+| | ${ramp_up_duration} = | Get Ramp Up Duration
+| | ${ramp_up_rate} = | Get Ramp Up Rate
+| | ${resetter} = | Get Resetter
+| | ${traffic_directions} = | Get Traffic Directions
+| | ${transaction_duration} = | Get Transaction Duration
+| | ${transaction_scale} = | Get Transaction Scale
+| | ${transaction_type} = | Get Transaction Type
+| | ${use_latency} = | Get Use Latency
+| | ${result} = | Perform optimized ndrpdr search
+| | ... | frame_size=${frame_size}
+| | ... | traffic_profile=${traffic_profile}
+| | ... | minimum_transmit_rate=${min_rate_soft}
+| | ... | maximum_transmit_rate=${max_rate}
+| | ... | packet_loss_ratio=${packet_loss_ratio}
+| | ... | final_relative_width=${0.005}
+| | ... | final_trial_duration=${30.0}
+| | ... | initial_trial_duration=${1.0}
+| | ... | number_of_intermediate_phases=${2}
+| | ... | timeout=${720.0}
+| | ... | ppta=${ppta}
+| | ... | resetter=${resetter}
+| | ... | traffic_directions=${traffic_directions}
+| | ... | transaction_duration=${transaction_duration}
+| | ... | transaction_scale=${transaction_scale}
+| | ... | transaction_type=${transaction_type}
+| | ... | use_latency=${use_latency}
+| | ... | ramp_up_duration=${ramp_up_duration}
+| | ... | ramp_up_rate=${ramp_up_rate}
+| | Display result of NDRPDR search | ${result}
+| | Check NDRPDR interval validity | ${result[1]}
+| | ... | ${packet_loss_ratio}
+| | Check NDRPDR interval validity | ${result[0]}
+| | ${pdr} = | Set Variable | ${result[1].measured_low.target_tr}
+| | ${ndr} = | Set Variable | ${result[0].measured_low.target_tr}
+| | # We expect NDR and PDR to have different-looking stats.
+| | Send traffic at specified rate
+| | ... | rate=${pdr}
+| | ... | trial_duration=${1.0}
+| | ... | trial_multiplicity=${1}
+| | ... | use_latency=${use_latency}
+| | ... | duration_limit=${1.0}
+| | Run Keyword If | ${ndr} != ${pdr}
+| | ... | Send traffic at specified rate
+| | ... | rate=${ndr}
+| | ... | trial_duration=${1.0}
+| | ... | trial_multiplicity=${1}
+| | ... | use_latency=${use_latency}
+| | ... | duration_limit=${1.0}
+| | Return From Keyword If | ${disable_latency}
+| | ${rate} = | Evaluate | 0.9 * ${pdr}
+| | Measure and show latency at specified rate | Latency at 90% PDR: | ${rate}
+| | ${rate} = | Evaluate | 0.5 * ${pdr}
+| | Measure and show latency at specified rate | Latency at 50% PDR: | ${rate}
+| | ${rate} = | Evaluate | 0.1 * ${pdr}
+| | Measure and show latency at specified rate | Latency at 10% PDR: | ${rate}
+| | Measure and show latency at specified rate | Latency at 0% PDR: | ${0.0}
 
-| Display single bound
+| Find Throughput Using MLRsearch
 | | [Documentation]
-| | ... | Display one bound of NDR+PDR search,
-| | ... | in packet per seconds (total and per stream)
-| | ... | and Gbps total bandwidth with untagged packet.
-| | ... | Througput is calculated as:
-| | ... | Measured rate per stream * Total number of streams
-| | ... | Bandwidth is calculated as:
-| | ... | (Throughput * (L2 Frame Size + IPG) * 8) / Max bitrate of NIC
-| | ... | The given result should contain latency data as well.
-| | ...
-| | ... | *Arguments:*
-| | ... | - text - Flavor text describing which bound is this. Type: string
-| | ... | - rate_total - Total (not per stream) measured Tr [pps]. Type: float
-| | ... | - frame_size - L2 Frame Size [B]. Type: integer
-| | ... | - latency - Latency data to display if non-empty. Type: string
-| | ...
+| | ... | Find and return lower bound NDR (zero PLR)
+| | ... | throughput using MLRsearch algorithm.
+| | ... | Input and output rates are understood as uni-directional, in tps.
+| | ... | Call \${resetter} (if defined) to reset DUT state before each trial.
+| |
+| | ... | *Test (or broader scope) variables read:*
+| | ... | - traffic_profile - Name of module defining traffc for measurements.
+| | ... | Type: string
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
+| | ... | - max_rate - Calculated maximal unidirectional transmit rate [tps].
+| | ... | Type: float
+| | ... | - resetter - Callable to reset DUT state before each trial.
+| | ... | - transaction_scale - Number of ASTF transaction (zero if unlimited).
+| | ... | - transaction_type - String identifier to determine how to count
+| | ... | transactions. Default is "packet".
+| |
+| | ... | *Returns:*
+| | ... | - Lower bound for uni-directional tps throughput at given PLR.
+| | ... | Type: float
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Display single bound \| NDR lower bound \| \${12345.67} \
-| | ... | \| \${64} \| show_latency=\${EMPTY} \|
-| | ...
-| | [Arguments] | ${text} | ${rate_total} | ${frame_size} | ${latency}=${EMPTY}
-| | ...
-| | ${bandwidth_total} = | Evaluate | ${rate_total} * (${frame_size}+20)*8 / 1e9
-| | Set Test Message | ${\n}${text}: ${rate_total} pps, | append=yes
-| | Set Test Message | ${bandwidth_total} Gbps (untagged) | append=yes
-| | Return From Keyword If | not """${latency}"""
-| | Set Test Message | ${\n}LATENCY usec [min/avg/max] per stream: ${latency}
-| | ... | append=yes
+| |
+| | ... | \| \${throughpt}= \| Find Throughput Using MLRsearch \|
+| |
+| | ${max_rate} = | Get Max Rate
+| | ${min_rate_soft} = | Get Min Rate Soft
+| | ${ppta} = | Get Packets Per Transaction Aggregated
+| | ${ramp_up_duration} = | Get Ramp Up Duration
+| | ${ramp_up_rate} = | Get Ramp Up Rate
+| | ${resetter} = | Get Resetter
+| | ${traffic_directions} = | Get Traffic Directions
+| | ${transaction_duration} = | Get Transaction Duration
+| | ${transaction_scale} = | Get Transaction Scale
+| | ${transaction_type} = | Get Transaction Type
+| | ${use_latency} = | Get Use Latency
+| | ${result} = | Perform optimized ndrpdr search
+| | ... | frame_size=${frame_size}
+| | ... | traffic_profile=${traffic_profile}
+| | ... | minimum_transmit_rate=${min_rate_soft}
+| | ... | maximum_transmit_rate=${max_rate}
+| | ... | packet_loss_ratio=${0.0}
+| | ... | final_relative_width=${0.001}
+| | ... | final_trial_duration=${10.0}
+| | ... | initial_trial_duration=${1.0}
+| | ... | number_of_intermediate_phases=${1}
+| | ... | timeout=${720}
+| | ... | ppta=${ppta}
+| | ... | resetter=${resetter}
+| | ... | traffic_directions=${traffic_directions}
+| | ... | transaction_duration=${transaction_duration}
+| | ... | transaction_scale=${transaction_scale}
+| | ... | transaction_type=${transaction_type}
+| | ... | use_latency=${use_latency}
+| | ... | ramp_up_duration=${ramp_up_duration}
+| | ... | ramp_up_rate=${ramp_up_rate}
+| | Check NDRPDR interval validity | ${result[0]}
+| | Return From Keyword | ${result[0].measured_low.target_tr}
 
-| Display result of NDRPDR search
+| Measure and show latency at specified rate
 | | [Documentation]
-| | ... | Display result of NDR+PDR search, both quantities, both bounds,
-| | ... | in packet per seconds (total and per stream)
-| | ... | and Gbps total bandwidth with untagged packet.
-| | ... | Througput is calculated as:
-| | ... | Measured rate per stream * Total number of streams
-| | ... | Bandwidth is calculated as:
-| | ... | (Throughput * (L2 Frame Size + IPG) * 8) / Max bitrate of NIC
-| | ... | The given result should contain latency data as well.
-| | ...
+| | ... | Send traffic at specified rate, single trial.
+| | ... | Extract latency information and append it to text message.
+| | ... | The rate argument is float, so should not include "pps".
+| | ... | If the given rate is too low, a safe value is used instead.
+| | ... | Call \${resetter} (if defined) to reset DUT state before each trial.
+| |
 | | ... | *Arguments:*
-| | ... | - result - Measured result data per stream [pps]. Type: NdrPdrResult
-| | ... | - frame_size - L2 Frame Size [B]. Type: integer
-| | ...
+| | ... | - message_prefix - Preface to test message addition. Type: string
+| | ... | - rate - Unidirectional rate [tps] for sending packets.
+| | ... | Type: float
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Display result of NDRPDR search \| \${result} \| \${64} \|
-| | ...
-| | [Arguments] | ${result} | ${frame_size}
-| | ...
-| | ${frame_size} = | Get Average Frame Size | ${frame_size}
-| | Display single bound | NDR_LOWER
-| | ... | ${result.ndr_interval.measured_low.transmit_rate} | ${frame_size}
-| | ... | ${result.ndr_interval.measured_low.latency}
-| | Display single bound | NDR_UPPER
-| | ... | ${result.ndr_interval.measured_high.transmit_rate} | ${frame_size}
-| | Display single bound | PDR_LOWER
-| | ... | ${result.pdr_interval.measured_low.transmit_rate} | ${frame_size}
-| | ... | ${result.pdr_interval.measured_low.latency}
-| | Display single bound | PDR_UPPER
-| | ... | ${result.pdr_interval.measured_high.transmit_rate} | ${frame_size}
+| |
+| | ... | \| Measure and show latency at specified rate \| Latency at 90% NDR \
+| | ... | \| ${10000000} \|
+| |
+| | [Arguments] | ${message_prefix} | ${rate}
+| |
+| | ${min_rate_hard} = | Get Min Rate Hard
+| | ${ppta} = | Get Packets Per Transaction Aggregated
+| | ${ramp_up_duration} = | Get Ramp Up Duration
+| | ${ramp_up_rate} = | Get Ramp Up Rate
+| | ${real_rate} = | Evaluate | max(${rate}, ${min_rate_hard})
+| | ${traffic_directions} = | Get Traffic Directions
+| | ${transaction_duration} = | Get Transaction Duration
+| | ${transaction_scale} = | Get Transaction Scale
+| | ${transaction_type} = | Get Transaction Type
+| | Call Resetter
+| | Send traffic on tg
+| | ... | duration=${PERF_TRIAL_LATENCY_DURATION}
+| | ... | rate=${real_rate}
+| | ... | frame_size=${frame_size}
+| | ... | traffic_profile=${traffic_profile}
+| | ... | async_call=${False}
+| | ... | duration_limit=${PERF_TRIAL_LATENCY_DURATION}
+| | ... | ppta=${ppta}
+| | ... | traffic_directions=${traffic_directions}
+| | ... | transaction_duration=${transaction_duration}
+| | ... | transaction_scale=${transaction_scale}
+| | ... | transaction_type=${transaction_type}
+| | ... | use_latency=${True}
+| | ... | ramp_up_duration=${ramp_up_duration}
+| | ... | ramp_up_rate=${ramp_up_rate}
+| | ${latency} = | Get Latency Int
+| | Set Test Message | ${\n}${message_prefix} ${latency} | append=${True}
 
-| Display result of soak search
+| Send ramp-up traffic
 | | [Documentation]
-| | ... | Display result of soak search, avg+-stdev, as upper/lower bounds,
-| | ... | in packet per seconds (total and per stream)
-| | ... | and Gbps total bandwidth with untagged packet.
-| | ... | Througput is calculated as:
-| | ... | Measured rate per stream * Total number of streams
-| | ... | Bandwidth is calculated as:
-| | ... | (Throughput * (L2 Frame Size + IPG) * 8) / Max bitrate of NIC
-| | ... | TODO: Do we want to report some latency data,
-| | ... | even if not measured at the reported bounds?.
-| | ...
-| | ... | *Arguments:*
-| | ... | - avg - Estimated average critical load [pps]. Type: float
-| | ... | - stdev - Standard deviation of critical load [pps]. Type: float
-| | ... | - frame_size - L2 Frame Size [B]. Type: integer
-| | ...
-| | ... | *Returns:*
-| | ... | - Lower and upper bound of critical load [pps]. Type: 2-tuple of float
-| | ...
+| | ... | Fail unless positive ramp-up rate is specified.
+| | ... | Else perform one trial with appropriate rate and duration.
+| | ... | This is useful for tests that set DUT state via traffic.
+| | ... | Rate has to bee low enough so packets are not lost,
+| | ... | Duration has to be long enough to set all the state.
+| | ... | The trial results are discarded.
+| |
+| | ... | *Test (or broader scope) variables read:*
+| | ... | - traffic_profile - Name of module defining traffic for measurements.
+| | ... | Type: string
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
+| | ... | - ramp_up_duration - Suitable traffic duration [s].
+| | ... | Type: float
+| | ... | - ramp_up_rate - Suitable unidirectional transmit rate [tps].
+| | ... | Type: float
+| | ... | - transaction_type - String identifier to determine how to count
+| | ... | transactions. Default is "packet".
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Display result of soak search \| \${100000} \| \${100} \| \${64} \|
-| | ...
-| | [Arguments] | ${avg} | ${stdev} | ${frame_size}
-| | ...
-| | ${frame_size} = | Get Average Frame Size | ${frame_size}
-| | ${avg} = | Convert To Number | ${avg}
-| | ${stdev} = | Convert To Number | ${stdev}
-| | ${lower} = | Evaluate | ${avg} - ${stdev}
-| | ${upper} = | Evaluate | ${avg} + ${stdev}
-| | Display single bound | PLRsearch lower bound: | ${lower} | ${frame_size}
-| | Display single bound | PLRsearch upper bound: | ${upper} | ${frame_size}
-| | Return From Keyword | ${lower} | ${upper}
+| |
+| | ... | \| Send ramp-up traffic \|
+| |
+| | ${ramp_up_rate} = | Get Ramp Up Rate
+| | Run Keyword Unless | ${ramp_up_rate} > 0.0 | Fail | Ramp up rate missing!
+| | ${ramp_up_duration} = | Get Ramp Up Duration
+| | ${ppta} = | Get Packets Per Transaction Aggregated
+| | ${traffic_directions} = | Get Traffic Directions
+| | ${transaction_duration} = | Get Transaction Duration
+| | ${transaction_scale} = | Get Transaction Scale
+| | ${transaction_type} = | Get Transaction Type
+| | ${use_latency} = | Get Use Latency
+| | Send traffic on tg
+| | ... | duration=${ramp_up_duration}
+| | ... | rate=${ramp_up_rate}
+| | ... | frame_size=${frame_size}
+| | ... | traffic_profile=${traffic_profile}
+| | ... | async_call=${False}
+| | ... | duration_limit=${0.0}
+| | ... | ppta=${ppta}
+| | ... | use_latency=${use_latency}
+| | ... | traffic_directions=${traffic_directions}
+| | ... | transaction_duration=${transaction_duration}
+| | ... | transaction_scale=${transaction_scale}
+| | ... | transaction_type=${transaction_type}
+| | ... | ramp_up_duration=${ramp_up_duration}
+| | ... | ramp_up_rate=${ramp_up_rate}
+| | ... | ramp_up_only=${True}
 
-| Check NDRPDR interval validity
+| Send traffic at specified rate
 | | [Documentation]
-| | ... | Extract loss ratio of lower bound of the interval.
-| | ... | Fail if it does not reach the allowed value.
-| | ...
+| | ... | Perform a warmup, show runtime counters during it.
+| | ... | Then send traffic at specified rate, possibly multiple trials.
+| | ... | Show various DUT stats, optionally also packet trace.
+| | ... | Return list of measured receive rates.
+| | ... | Call \${resetter} (if defined) to reset DUT state before each trial.
+| |
 | | ... | *Arguments:*
-| | ... | - interval - Measured interval. Type: ReceiveRateInterval
-| | ... | - packet_loss_ratio - Accepted loss (0.0 for NDR). Type: float
-| | ...
+| | ... | - trial_duration - Duration of single trial [s]. Type: float
+| | ... | - rate - Target unidirectional transmit rate [tps]. Type: float
+| | ... | Type: string
+| | ... | - trial_multiplicity - How many trials in this measurement.
+| | ... | Type: boolean
+| | ... | - use_latency - Use latency stream in search; default value: False.
+| | ... | Type: boolean
+| | ... | - duration_limit - Hard limit for trial duration, overriding duration
+| | ... | computed from transaction_scale. Default 0.0 means no limit.
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Check NDRPDR interval validity \| \${result.pdr_interval} \
-| | ... | \| \${0.005} \|
-| | ...
-| | [Arguments] | ${interval} | ${packet_loss_ratio}=${0.0}
-| | ...
-| | ${lower_bound} = | Set Variable | ${interval.measured_low}
-| | ${lower_bound_lf} = | Set Variable | ${lower_bound.loss_fraction}
-| | Return From Keyword If | ${lower_bound_lf} <= ${packet_loss_ratio}
-| | ${message}= | Catenate | SEPARATOR=${SPACE}
-| | ... | Minimal rate loss fraction ${lower_bound_lf}
-| | ... | does not reach target ${packet_loss_ratio}.
-| | ${message_zero} = | Set Variable | Zero packets forwarded!
-| | ${message_other} = | Set Variable | ${lower_bound.loss_count} packets lost.
-| | ${message} = | Set Variable If | ${lower_bound_lf} >= 1.0
-| | ... | ${message}${\n}${message_zero} | ${message}${\n}${message_other}
-| | Fail | ${message}
+| |
+| | ... | \| Send traffic at specified rate \| \${1.0} \| ${4000000.0} \
+| | ... | \| \${10} \| ${False} \| ${1.0} \|
+| |
+| | [Arguments] | ${trial_duration} | ${rate} | ${trial_multiplicity}
+| | ... | ${use_latency}=${False} | ${duration_limit}=${0.0}
+| |
+| | ${ppta} = | Get Packets Per Transaction Aggregated
+| | ${ramp_up_duration} = | Get Ramp Up Duration
+| | ${ramp_up_rate} = | Get Ramp Up Rate
+| | ${traffic_directions} = | Get Traffic Directions
+| | ${transaction_duration} = | Get Transaction Duration
+| | ${transaction_scale} = | Get Transaction Scale
+| | ${transaction_type} = | Get Transaction Type
+| | Set Test Variable | \${rate_for_teardown} | ${rate}
+| | FOR | ${action} | IN | @{stat_runtime}
+| | | Run Keyword | Additional Statistics Action For ${action}
+| | END
+| | FOR | ${action} | IN | @{stat_pre_trial}
+| | | Run Keyword | Additional Statistics Action For ${action}
+| | END
+| | ${results} = | Create List
+| | FOR | ${i} | IN RANGE | ${trial_multiplicity}
+| | | Call Resetter
+| | | ${result} = | Send traffic on tg
+| | | ... | duration=${trial_duration}
+| | | ... | rate=${rate}
+| | | ... | frame_size=${frame_size}
+| | | ... | traffic_profile=${traffic_profile}
+| | | ... | async_call=${False}
+| | | ... | duration_limit=${duration_limit}
+| | | ... | ppta=${ppta}
+| | | ... | traffic_directions=${traffic_directions}
+| | | ... | transaction_duration=${transaction_duration}
+| | | ... | transaction_scale=${transaction_scale}
+| | | ... | transaction_type=${transaction_type}
+| | | ... | use_latency=${use_latency}
+| | | ... | ramp_up_duration=${ramp_up_duration}
+| | | ... | ramp_up_rate=${ramp_up_rate}
+| | | # Out of several quantities for aborted traffic (duration stretching),
+| | | # the approximated receive rate is the best estimate we have.
+| | | Append To List | ${results} | ${result.approximated_receive_rate}
+| | END
+| | FOR | ${action} | IN | @{stat_post_trial}
+| | | Run Keyword | Additional Statistics Action For ${action}
+| | END
+| | Return From Keyword | ${results}
 
-| Perform additional measurements based on NDRPDR result
+| Traffic should pass with maximum rate on iPerf3
 | | [Documentation]
-| | ... | Perform any additional measurements which are not directly needed
-| | ... | for determining NDR nor PDR, but which are needed for gathering
-| | ... | additional data for debug purposes.
-| | ... | Currently, just "Traffic should pass with no loss" is called.
-| | ... | TODO: Move latency measurements from optimized search here.
-| | ...
+| | ... | Send traffic at maximum rate on iPerf3.
+| |
 | | ... | *Arguments:*
-| | ... | - result - Measured result data per stream [pps]. Type: NdrPdrResult
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
-| | ... | - traffic_profile - Topology profile. Type: string
-| | ...
+| | ... | - trial_duration - Duration of single trial [s].
+| | ... | Type: float
+| | ... | - trial_multiplicity - How many trials in this measurement.
+| | ... | Type: integer
+| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic;
+| | ... | Type: integer
+| |
 | | ... | *Example:*
-| | ... | \| Perform additional measurements based on NDRPDR result \
-| | ... | \| \${result} \| ${64} \| 3-node-IPv4 \|
-| | ...
-| | [Arguments] | ${result} | ${framesize} | ${traffic_profile}
-| | ...
-| | ${duration}= | Set Variable | 2.0
-| | ${rate_per_stream}= | Evaluate
-| | ... | ${result.ndr_interval.measured_low.target_tr} / 2.0
-| | Traffic should pass with no loss | ${duration} | ${rate_per_stream}pps
-| | ... | ${framesize} | ${traffic_profile} | fail_on_loss=${False}
+| |
+| | ... | \| Traffic should pass with maximum rate on iPerf3 \| \${1} \| \
+| | ... | \| \${10.0} \| \${2} \|
+| |
+| | [Arguments] | ${trial_duration}=${trial_duration}
+| | ... | ${trial_multiplicity}=${trial_multiplicity}
+| | ... | ${traffic_directions}=${1}
+| |
+| | ${results}= | Send iPerf3 traffic at specified rate
+| | ... | ${trial_duration} | ${None} | ${None}
+| | ... | ${trial_multiplicity} | ${traffic_directions}
+| | Set Test Message | ${\n}iPerf3 trial results
+| | Set Test Message | in Gbits per second: ${results}
+| | ... | append=yes
 
-| Traffic should pass with no loss
+| Send iPerf3 traffic at specified rate
 | | [Documentation]
-| | ... | Send traffic at specified rate. No packet loss is accepted at loss
-| | ... | evaluation.
-| | ...
+| | ... | Perform a warmup, show runtime counters during it.
+| | ... | Then send traffic at specified rate, possibly multiple trials.
+| | ... | Show various DUT stats, optionally also packet trace.
+| | ... | Return list of measured receive rates.
+| |
 | | ... | *Arguments:*
-| | ... | - duration - Duration of traffic run [s]. Type: integer
-| | ... | - rate - Rate for sending packets. Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX_v4_1. Type: integer/string
-| | ... | - traffic_profile - Name of module defining traffc for measurements.
-| | ... | Type: string
-| | ... | - fail_on_loss - If True, the keyword fails if loss occurred.
+| | ... | - trial_duration - Duration of single trial [s].
+| | ... | Type: float
+| | ... | - rate - Target aggregate transmit rate [bps] / Bits per second
+| | ... | Type: float
+| | ... | - frame_size - L2 Frame Size [B].
+| | ... | Type: integer or string
+| | ... | - trial_multiplicity - How many trials in this measurement.
+| | ... | Type: integer
+| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
+| | ... | Type: integer
+| | ... | - extended_debug - True to enable extended debug.
 | | ... | Type: boolean
-| | ...
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Traffic should pass with no loss \| 10 \| 4.0mpps \| 64 \
-| | ... | \| 3-node-IPv4 \|
-| | ...
-| | [Arguments] | ${duration} | ${rate} | ${frame_size} | ${traffic_profile}
-| | ... | ${fail_on_loss}=${True}
-| | ...
-| | Send traffic at specified rate | ${duration} | ${rate} | ${frame_size}
-| | ... | ${traffic_profile}
-| | Run Keyword If | ${fail_on_loss} | No traffic loss occurred
+| |
+| | ... | \| Send iPerf3 traffic at specified rate \| \${1.0} \| ${4000000.0} \
+| | ... | \| \${64} \| \${10} \| \${1} \| ${False} \|
+| |
+| | [Arguments] | ${trial_duration} | ${rate} | ${frame_size}
+| | ... | ${trial_multiplicity}=${trial_multiplicity}
+| | ... | ${traffic_directions}=${1} | ${extended_debug}=${extended_debug}
+| |
+| | Set Test Variable | ${extended_debug}
+| | Set Test Variable | ${rate}
+| | Set Test Variable | ${traffic_directions}
+| |
+| | ${smt_used}= | Is SMT enabled | ${nodes['${iperf_server_node}']['cpuinfo']}
+| | ${vm_status} | ${value}= | Run Keyword And Ignore Error
+| | ... | Get Library Instance | vnf_manager
+| | ${vth}= | Evaluate | (${thr_count_int} + 1)
+| | ${cpu_skip_cnt}= | Set Variable If | '${vm_status}' == 'PASS'
+| | ... | ${CPU_CNT_SYSTEM}
+| | ... | ${${CPU_CNT_SYSTEM} + ${CPU_CNT_MAIN} + ${cpu_count_int} + ${vth}}
+| |
+| | Initialize iPerf Server
+| | ... | ${nodes['${iperf_server_node}']}
+| | ... | pf_key=${iperf_server_pf_key}
+| | ... | interface=${iperf_server_interface}
+| | ... | bind=${iperf_server_bind}
+| | ... | bind_gw=${iperf_server_bind_gw}
+| | ... | bind_mask=${iperf_server_bind_mask}
+| | ... | namespace=${iperf_server_namespace}
+| | ... | cpu_skip_cnt=${cpu_skip_cnt}
+| | Run Keyword If | '${iperf_client_namespace}' is not '${None}'
+| | ... | Set Linux Interface IP
+| | ... | ${nodes['${iperf_client_node}']}
+| | ... | interface=${iperf_client_interface}
+| | ... | ip_addr=${iperf_client_bind}
+| | ... | prefix=${iperf_client_bind_mask}
+| | ... | namespace=${iperf_client_namespace}
+| | Run Keyword If | '${iperf_client_namespace}' is not '${None}'
+| | ... | Add Default Route To Namespace
+| | ... | ${nodes['${iperf_client_node}']}
+| | ... | namespace=${iperf_client_namespace}
+| | ... | default_route=${iperf_client_bind_gw}
+| | ${stat_runtime}= | Create List
+| | ... | vpp-runtime-iperf3
+| | ${stat_pre_trial}= | Create List
+| | ... | vpp-runtime-iperf3 | vpp-clear-stats | vpp-enable-packettrace
+| | FOR | ${action} | IN | @{stat_runtime}
+| | | Run Keyword | Additional Statistics Action For ${action}
+| | END
+| | FOR | ${action} | IN | @{stat_pre_trial}
+| | | Run Keyword | Additional Statistics Action For ${action}
+| | END
+| | ${results} = | Create List
+| | FOR | ${i} | IN RANGE | ${trial_multiplicity}
+| | | ${rr} = | iPerf Client Start Remote Exec
+| | | ... | ${nodes['${iperf_client_node}']}
+| | | ... | duration=${trial_duration}
+| | | ... | rate=${rate}
+| | | ... | frame_size=${frame_size}
+| | | ... | async_call=False
+| | | ... | warmup_time=0
+| | | ... | traffic_directions=${traffic_directions}
+| | | ... | namespace=${iperf_client_namespace}
+| | | ... | udp=${iperf_client_udp}
+| | | ... | host=${iperf_server_bind}
+| | | ... | bind=${iperf_client_bind}
+| | | ... | affinity=${iperf_client_affinity}
+| | | ${conv} = | Convert To Number | ${rr['sum_received']['bits_per_second']}
+| | | ${conv} = | Evaluate | ${conv} / ${1000} / ${1000} / ${1000}
+| | | ${conv} = | Evaluate | "{:.3f}".format(${conv})
+| | | Append To List
+| | | ... | ${results} | ${conv}
+| | END
+| | FOR | ${action} | IN | @{stat_post_trial}
+| | | Run Keyword | Additional Statistics Action For ${action}
+| | END
+| | Return From Keyword | ${results}
 
-| Traffic should pass with maximum rate
+| Start Traffic on Background
 | | [Documentation]
-| | ... | Send traffic at maximum rate.
-| | ...
-| | ... | Some inputs are read from variables to streamline suites.
-| | ...
+| | ... | Start traffic at specified rate then return control to Robot.
+| | ... | This keyword is useful if the test needs to do something
+| | ... | while traffic is running.
+| |
 | | ... | *Test (or broader scope) variables read:*
 | | ... | - traffic_profile - Name of module defining traffc for measurements.
 | | ... | Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
-| | ... | - max_rate - Calculated unidirectional maximal transmit rate [pps].
-| | ... | Type: float
-| | ...
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | | ... | *Arguments:*
-| | ... | - subsamples - How many trials in this measurement. Type: int
-| | ... | - trial_duration - Duration of single trial [s]. Type: float
-| | ... | - fail_no_traffic - Whether to fail on zero receive count. Type: boolean
-| | ... | - unidirection - False if traffic is bidirectional. Type: boolean
-| | ... | - tx_port - TX port of TG, default 0. Type: integer
-| | ... | - rx_port - RX port of TG, default 1. Type: integer
-| | ...
+| | ... | - rate - Unidirectional rate [tps] for sending packets.
+| | ... | Type: float
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Traffic should pass with maximum rate \| ${1} \| ${10.0} \|
-| | ... | \| ${False} \| ${False} \| ${0} \| ${1} \|
-| | ...
-| | [Arguments] | ${trial_duration}=${perf_trial_duration}
-| | ... | ${fail_no_traffic}=${True} | ${subsamples}=${perf_trial_multiplicity}
-| | ... | ${unidirection}=${False} | ${tx_port}=${0} | ${rx_port}=${1}
-| | ...
-| | ${results} = | Send traffic at specified rate | ${trial_duration}
-| | ... | ${max_rate}pps | ${frame_size} | ${traffic_profile} | ${subsamples}
-| | ... | ${unidirection} | ${tx_port} | ${rx_port}
-| | Set Test Message | ${\n}Maximum Receive Rate trial results
-| | Set Test Message | in packets per second: ${results}
-| | ... | append=yes
-| | # TODO: Should we also report the percentage relative to transmit rate,
-| | # so that people looking at console can decide how close to 100% it is?
-| | Run Keyword If | ${fail_no_traffic} | Fail if no traffic forwarded
+| |
+| | ... | \| Start Traffic on Background \| ${4000000.0} \|
+| |
+| | [Arguments] | ${rate}
+| |
+| | ${ppta} = | Get Packets Per Transaction Aggregated
+| | ${ramp_up_duration} = | Get Ramp Up Duration
+| | ${ramp_up_rate} = | Get Ramp Up Rate
+| | ${traffic_directions} = | Get Traffic Directions
+| | ${transaction_duration} = | Get Transaction Duration
+| | ${transaction_scale} = | Get Transaction Scale
+| | ${transaction_type} = | Get Transaction Type
+| | ${use_latency} = | Get Use Latency
+| | Call Resetter
+| | # Duration of -1 means we will stop traffic manually.
+| | Send traffic on tg
+| | ... | duration=${-1}
+| | ... | rate=${rate}
+| | ... | frame_size=${frame_size}
+| | ... | traffic_profile=${traffic_profile}
+| | ... | async_call=${True}
+| | ... | duration_limit=${0.0}
+| | ... | ppta=${ppta}
+| | ... | ramp_up_duration=${ramp_up_duration}
+| | ... | ramp_up_rate=${ramp_up_rate}
+| | ... | traffic_directions=${traffic_directions}
+| | ... | transaction_duration=${transaction_duration}
+| | ... | transaction_scale=${transaction_scale}
+| | ... | transaction_type=${transaction_type}
+| | ... | use_latency=${use_latency}
+| | # TODO: Ramp-up?
 
-| Send traffic at specified rate
+| Stop Running Traffic
 | | [Documentation]
-| | ... | Send traffic at specified rate.
-| | ... | Return list of measured receive rates.
-| | ... | The rate argument should be TRex friendly, so it should include "pps".
-| | ...
-| | ... | *Arguments:*
-| | ... | - trial_duration - Duration of single trial [s]. Type: float
-| | ... | - rate - Rate for sending packets. Type: string
-| | ... | - frame_size - L2 Frame Size [B]. Type: integer/string
-| | ... | - traffic_profile - Name of module defining traffc for measurements.
-| | ... | Type: string
-| | ... | - subsamples - How many trials in this measurement. Type: int
-| | ... | - unidirection - False if traffic is bidirectional. Type: boolean
-| | ... | - tx_port - TX port of TG, default 0. Type: integer
-| | ... | - rx_port - RX port of TG, default 1. Type: integer
-| | ...
+| | ... | Stop the running traffic, return measurement result.
+| | ... | For bidirectional traffic, the reported values are bi-directional.
+| |
+| | ... | *Returns:*
+| | ... | - Measurement result. Type: ReceiveRateMeasurement
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Send traffic at specified rate \| ${1.0} \| 4.0mpps \| 64 \
-| | ... | \| 3-node-IPv4 \| ${10} \| ${False} \| ${0} | ${1} \|
-| | ...
-| | [Arguments] | ${trial_duration} | ${rate} | ${frame_size}
-| | ... | ${traffic_profile} | ${subsamples}=${1} | ${unidirection}=${False}
-| | ... | ${tx_port}=${0} | ${rx_port}=${1}
-| | ...
-| | Clear and show runtime counters with running traffic | ${trial_duration}
-| | ... | ${rate} | ${frame_size} | ${traffic_profile}
-| | ... | ${unidirection} | ${tx_port} | ${rx_port}
-| | Run Keyword If | ${dut_stats}==${True} | Clear all counters on all DUTs
-| | Run Keyword If | ${dut_stats}==${True} and ${pkt_trace}==${True}
-| | ... | VPP Enable Traces On All DUTs | ${nodes}
-| | Run Keyword If | ${dut_stats}==${True}
-| | ... | VPP enable elog traces on all DUTs | ${nodes}
-| | ${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.
-| | | Send traffic on tg | ${trial_duration} | ${rate} | ${frame_size}
-| | | ... | ${traffic_profile} | warmup_time=${0} | unidirection=${unidirection}
-| | | ... | tx_port=${tx_port} | rx_port=${rx_port}
-| | | ${rx} = | Get Received
-| | | ${rr} = | Evaluate | ${rx} / ${trial_duration}
-| | | Append To List | ${results} | ${rr}
-| | Run Keyword If | ${dut_stats}==${True} | Show event logger on all DUTs
-| | ... | ${nodes}
-| | Run Keyword If | ${dut_stats}==${True} | Show statistics on all DUTs
-| | ... | ${nodes}
-| | Run Keyword If | ${dut_stats}==${True} and ${pkt_trace}==${True}
-| | ... | Show Packet Trace On All Duts | ${nodes} | maximum=${100}
-| | Return From Keyword | ${results}
+| |
+| | ... | \${result}= \| Stop Running Traffic \|
+| |
+| | ${result}= | Stop traffic on tg
+| | Return From Keyword | ${result}
 
-| Clear and show runtime counters with running traffic
+| Traffic should pass with maximum rate
 | | [Documentation]
-| | ... | Start traffic at specified rate then clear runtime counters on all
-| | ... | DUTs. Wait for specified amount of time and capture runtime counters
-| | ... | on all DUTs. Finally stop traffic
-| | ...
-| | ... | *Arguments:*
-| | ... | - duration - Duration of traffic run [s]. Type: integer
-| | ... | - rate - Rate for sending packets. Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX_v4_1. Type: integer/string
-| | ... | - traffic_profile - Name of module defining traffc for measurements.
+| | ... | Send traffic at maximum rate.
+| | ... | Call \${resetter} (if defined) to reset DUT state before each trial.
+| | ... | Fail if no packets were forwarded.
+| |
+| | ... | *Test (or broader scope) variables read:*
+| | ... | - traffic_profile - Name of module defining traffic for measurements.
 | | ... | Type: string
-| | ... | - unidirection - False if traffic is bidirectional. Type: boolean
-| | ... | - tx_port - TX port of TG, default 0. Type: integer
-| | ... | - rx_port - RX port of TG, default 1. Type: integer
-| | ...
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
+| | ... | - max_rate - Calculated maximal transmit rate [tps].
+| | ... | Type: float
+| | ... | - transaction_type - String identifier to determine how to count
+| | ... | transactions. Default is "packet".
+| |
 | | ... | *Example:*
-| | ...
-| | ... | \| Clear and show runtime counters with running traffic \| 10 \
-| | ... | \| 4.0mpps \| 64 \| 3-node-IPv4 \| ${False} \| ${0} | ${1} \|
-| | ...
-| | [Arguments] | ${duration} | ${rate} | ${frame_size} | ${traffic_profile}
-| | ... | ${unidirection}=${False} | ${tx_port}=${0} | ${rx_port}=${1}
-| | ...
-| | # Duration of -1 means we will stop traffic manually.
-| | Send traffic on tg | ${-1} | ${rate} | ${frame_size} | ${traffic_profile}
-| | ... | warmup_time=${0} | async_call=${True} | latency=${False}
-| | ... | unidirection=${unidirection} | tx_port=${tx_port} | rx_port=${rx_port}
-| | Run Keyword If | ${dut_stats}==${True}
-| | ... | Clear runtime counters on all DUTs | ${nodes}
-| | Sleep | ${duration}
-| | Run Keyword If | ${dut_stats}==${True}
-| | ... | Show runtime counters on all DUTs | ${nodes}
-| | Stop traffic on tg
+| |
+| | ... | \| Traffic should pass with maximum rate \|
+| |
+| | ${max_rate} = | Get Max Rate
+| | ${transaction_type} = | Get Transaction Type
+| | ${trial_duration} = | Get Mrr Trial Duration
+| | ${trial_multiplicity} = | Get Mrr Trial Multiplicity
+| | ${use_latency} = | Get Use Latency
+| | # The following also sets \${rate_for_teardown}
+| | ${results} = | Send traffic at specified rate
+| | ... | rate=${max_rate}
+| | ... | trial_duration=${trial_duration}
+| | ... | trial_multiplicity=${trial_multiplicity}
+| | ... | use_latency=${use_latency}
+| | ... | duration_limit=${0.0}
+| | ${unit} = | Set Variable If | """_cps""" in """${transaction_type}"""
+| | ... | estimated connections per second | packets per second
+| | Set Test Message | ${\n}Maximum Receive Rate trial results
+| | Set Test Message | in ${unit}: ${results}
+| | ... | append=yes
+| | Fail if no traffic forwarded