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=dcabbb9fac6289b3065f2d782317d7985622c429;hb=b623785eb9ecaf0657e8f6ca6898dabdc5381128;hpb=b16f6c59bc9b37336f07c208106e566c05446205

diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot
index dcabbb9fac..96b0e0e430 100644
--- a/resources/libraries/robot/performance/performance_utils.robot
+++ b/resources/libraries/robot/performance/performance_utils.robot
@@ -1,4 +1,4 @@
-# Copyright (c) 2020 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:
@@ -15,390 +15,343 @@
 | 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.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
 | 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 ***
-| ${trial_duration}= | ${PERF_TRIAL_DURATION}
-| ${trial_multiplicity}= | ${PERF_TRIAL_MULTIPLICITY}
-| ${extended_debug}= | ${EXTENDED_DEBUG}
+| # 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.
-| | ... | Display findings as a formatted test message.
-| | ... | Fail if a resulting lower bound has too high loss fraction.
-| | ... | Input rates are understood as uni-directional,
-| | ... | reported result contains aggregate rates.
-| | ... | Additional latency measurements are performed for smaller loads,
-| | ... | their results are also displayed.
-| | ... | Finally, two measurements for runtime stats are done (not displayed).
-| | ... | Currently, the min_rate value is hardcoded to 90kpps,
-| | ... | allowing measurement at 10% of the discovered rate
-| | ... | without breaking latency streams.
+| | ... | Find boundaries for troughput (of hardcoded target loss ratio)
+| | ... | using PLRsearch algorithm.
+| | ... | Display results as formatted test message.
+| | ... | 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
-| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - latency_duration - Duration for latency-specific trials. Type: float
-| |
 | | ... | *Example:*
 | |
-| | ... | \| Find NDR and PDR intervals using optimized search \| \${0.005} \
-| | ... | \| \${0.005} \| \${30.0} \| \${1.0} \| \${2} \| \${600.0} \| \${2} \
-| | ... | \| \${2} \| ${5.0} \|
-| |
-| | [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} | ${traffic_directions}=${2}
-| | ... | ${latency_duration}=${PERF_TRIAL_LATENCY_DURATION}
-| |
-| | # Latency measurements will need more than 9000 pps.
-| | ${result} = | Perform optimized ndrpdr search | ${frame_size}
-| | ... | ${traffic_profile} | ${9001} | ${max_rate}
-| | ... | ${packet_loss_ratio} | ${final_relative_width}
-| | ... | ${final_trial_duration} | ${initial_trial_duration}
-| | ... | ${number_of_intermediate_phases} | timeout=${timeout}
-| | ... | doublings=${doublings} | traffic_directions=${traffic_directions}
-| | Display result of NDRPDR search | ${result}
-| | Check NDRPDR interval validity | ${result.pdr_interval}
-| | ... | ${packet_loss_ratio}
-| | Check NDRPDR interval validity | ${result.ndr_interval}
-| | ${pdr_sum}= | Set Variable | ${result.pdr_interval.measured_low.target_tr}
-| | ${pdr_per_stream}= | Evaluate | ${pdr_sum} / float(${traffic_directions})
-| | ${ndr_sum}= | Set Variable | ${result.ndr_interval.measured_low.target_tr}
-| | ${ndr_per_stream}= | Evaluate | ${ndr_sum} / float(${traffic_directions})
-| | ${rate}= | Evaluate | 0.9 * ${pdr_per_stream}
-| | Measure and show latency at specified rate | Latency at 90% PDR:
-| | ... | ${latency_duration} | ${rate} | ${framesize}
-| | ... | ${traffic_profile} | ${traffic_directions}
-| | ${rate}= | Evaluate | 0.5 * ${pdr_per_stream}
-| | Measure and show latency at specified rate | Latency at 50% PDR:
-| | ... | ${latency_duration} | ${rate} | ${framesize}
-| | ... | ${traffic_profile} | ${traffic_directions}
-| | ${rate}= | Evaluate | 0.1 * ${pdr_per_stream}
-| | Measure and show latency at specified rate | Latency at 10% PDR:
-| | ... | ${latency_duration} | ${rate} | ${framesize}
-| | ... | ${traffic_profile} | ${traffic_directions}
-| | Measure and show latency at specified rate | Latency at 0% PDR:
-| | ... | ${latency_duration} | ${0} | ${framesize}
-| | ... | ${traffic_profile} | ${traffic_directions}
-| | # Finally, trials with runtime and other stats.
-| | # We expect NDR and PDR to have different-looking stats.
-| | Send traffic at specified rate
-| | ... | ${1.0} | ${pdr_per_stream} | ${framesize} | ${traffic_profile}
-| | ... | traffic_directions=${traffic_directions}
-| | Send traffic at specified rate
-| | ... | ${1.0} | ${ndr_per_stream} | ${framesize} | ${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 Throughput Using MLRsearch
+| Find NDR and PDR intervals using optimized search
 | | [Documentation]
-| | ... | Find and return lower bound PDR (zero PLR by default)
-| | ... | aggregate throughput using MLRsearch algorithm.
-| | ... | Input rates are understood as uni-directional.
-| | ... | Currently, the min_rate value is hardcoded to match test teardowns.
+| | ... | 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
-| | ... | - 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
-| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| |
-| | ... | *Returns:*
-| | ... | - Lower bound for bi-directional throughput at given PLR. 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:*
 | |
-| | ... | \| \${throughpt}= \| Find Throughput Using MLRsearch \| \${0} \
-| | ... | \| \${0.001} \| \${10.0}\| \${1.0} \| \${1} \| \${720.0} \| \${2} \
-| | ... | \| \${2} \|
-| |
-| | [Arguments] | ${packet_loss_ratio}=${0.0}
-| | ... | ${final_relative_width}=${0.001} | ${final_trial_duration}=${10.0}
-| | ... | ${initial_trial_duration}=${1.0}
-| | ... | ${number_of_intermediate_phases}=${1} | ${timeout}=${720.0}
-| | ... | ${doublings}=${2} | ${traffic_directions}=${2}
-| |
-| | ${result} = | Perform optimized ndrpdr search | ${frame_size}
-| | ... | ${traffic_profile} | ${10000} | ${max_rate}
-| | ... | ${packet_loss_ratio} | ${final_relative_width}
-| | ... | ${final_trial_duration} | ${initial_trial_duration}
-| | ... | ${number_of_intermediate_phases} | timeout=${timeout}
-| | ... | doublings=${doublings} | traffic_directions=${traffic_directions}
-| | Check NDRPDR interval validity | ${result.pdr_interval}
+| | ... | \| 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}
-| | Return From Keyword | ${result.pdr_interval.measured_low.target_tr}
+| | 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}
 
-| Find critical load using PLRsearch
+| Find Throughput Using MLRsearch
 | | [Documentation]
-| | ... | Find boundaries for troughput (of given target loss ratio)
-| | ... | using PLRsearch algorithm.
-| | ... | Display results as formatted test message.
-| | ... | Fail if computed lower bound 110% of the minimal rate or less.
-| | ... | Input rates are understood as uni-directional,
-| | ... | reported result contains aggregate rates.
-| | ... | Currently, the min_rate value is hardcoded to match test teardowns.
+| | ... | 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: 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
-| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| |
-| | ... | *Example:*
-| |
-| | ... | \| Find critical load using PLR search \| \${1e-7} \| \${120} \
-| | ... | \| \${2} \|
-| |
-| | [Arguments] | ${packet_loss_ratio}=${1e-7} | ${timeout}=${1800.0}
-| | ... | ${traffic_directions}=${2}
-| |
-| | ${min_rate} = | Set Variable | ${10000}
-| | ${average} | ${stdev} = | Perform soak search | ${frame_size}
-| | ... | ${traffic_profile} | ${min_rate} | ${max_rate}
-| | ... | ${packet_loss_ratio} | timeout=${timeout}
-| | ... | traffic_directions=${traffic_directions}
-| | ${lower} | ${upper} = | Display result of soak search
-| | ... | ${average} | ${stdev}
-| | Should Not Be True | 1.1 * ${traffic_directions} * ${min_rate} > ${lower}
-| | ... | Lower bound ${lower} too small for unidirectional minimum ${min_rate}.
-
-| Display single bound
-| | [Documentation]
-| | ... | Display one bound of NDR+PDR search,
-| | ... | in packet per seconds (total and per stream)
-| | ... | and Gbps total bandwidth (for initial packet size).
-| | ... | Througput is calculated as:
-| | ... | Sum of measured rates over streams
-| | ... | Bandwidth is calculated as:
-| | ... | (Throughput * (L2 Frame Size + IPG) * 8)
-| | ... | 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
-| |
-| | ... | *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 | ${bandwidth_total} Gbps (initial) | append=yes
-| | Return From Keyword If | not """${latency}"""
-| | Set Test Message | ${\n}LATENCY [min/avg/max/hdrh] per stream: ${latency}
-| | ... | append=yes
-
-| Display Reconfig Test Message
-| | [Documentation]
-| | ... | Display the number of packets lost (bidirectionally)
-| | ... | due to reconfiguration under traffic.
-| |
-| | ... | *Arguments:*
-| | ... | - result - Result of bidirectional measurtement.
-| | ... | Type: ReceiveRateMeasurement
-| |
-| | ... | *Example:*
-| |
-| | ... | \| Display Reconfig Test Message \| \${result} \|
-| |
-| | [Arguments] | ${result}
-| |
-| | Set Test Message | Packets lost due to reconfig: ${result.loss_count}
-| | ${time_lost} = | Evaluate | ${result.loss_count} / ${result.target_tr}
-| | Set Test Message | ${\n}Implied time lost: ${time_lost} | append=yes
-
-| Display result of NDRPDR search
-| | [Documentation]
-| | ... | Display result of NDR+PDR search, both quantities, both bounds,
-| | ... | aggregate in packet per seconds
-| | ... | and Gbps total bandwidth (for initial packet size).
-| | ... | Througput is calculated as:
-| | ... | Sum of measured rate over streams
-| | ... | Bandwidth is calculated as:
-| | ... | (Throughput * (L2 Frame Size + IPG) * 8)
-| | ... | The given result should contain latency data as well.
-| |
-| | ... | *Test (or broader scope) variables read:*
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
-| | ... | *Arguments:*
-| | ... | - result - Measured result data per stream [pps]. Type: NdrPdrResult
-| |
-| | ... | *Example:*
-| |
-| | ... | \| Display result of NDRPDR search \| \${result} \|
-| |
-| | [Arguments] | ${result}
-| |
-| | ${frame_size} = | Get Average Frame Size | ${frame_size}
-| | Display single bound | NDR_LOWER
-| | ... | ${result.ndr_interval.measured_low.target_tr} | ${frame_size}
-| | ... | ${result.ndr_interval.measured_low.latency}
-| | Display single bound | NDR_UPPER
-| | ... | ${result.ndr_interval.measured_high.target_tr} | ${frame_size}
-| | Display single bound | PDR_LOWER
-| | ... | ${result.pdr_interval.measured_low.target_tr} | ${frame_size}
-| | ... | ${result.pdr_interval.measured_low.latency}
-| | Display single bound | PDR_UPPER
-| | ... | ${result.pdr_interval.measured_high.target_tr} | ${frame_size}
-
-| Display result of soak search
-| | [Documentation]
-| | ... | Display result of soak search, avg+-stdev, as upper/lower bounds,
-| | ... | in aggregate packets per seconds
-| | ... | and Gbps total bandwidth (for initial packet size).
-| | ... | Througput is calculated as:
-| | ... | Sum of measured rates over streams
-| | ... | Bandwidth is calculated as:
-| | ... | (Throughput * (L2 Frame Size + IPG) * 8)
-| |
-| | ... | *Test (or broader scope) variables read:*
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
-| | ... | *Arguments:*
-| | ... | - avg - Estimated average critical load [pps]. Type: float
-| | ... | - stdev - Standard deviation of critical load [pps]. 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 and upper bound of critical load [pps]. Type: 2-tuple of float
+| | ... | - Lower bound for uni-directional tps throughput at given PLR.
+| | ... | Type: float
 | |
 | | ... | *Example:*
 | |
-| | ... | \| Display result of soak search \| \${100000} \| \${100} \|
-| |
-| | [Arguments] | ${avg} | ${stdev}
-| |
-| | ${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}
+| | ... | \| \${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}
 
-| Check NDRPDR interval validity
+| Measure and show latency at specified rate
 | | [Documentation]
-| | ... | Extract loss ratio of lower bound of the interval.
-| | ... | Fail if it does not reach the allowed value.
+| | ... | 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:*
-| | ... | - interval - Measured interval. Type: ReceiveRateInterval
-| | ... | - packet_loss_ratio - Accepted loss (0.0 for NDR). Type: float
+| | ... | - message_prefix - Preface to test message addition. Type: string
+| | ... | - rate - Unidirectional rate [tps] for sending packets.
+| | ... | Type: float
 | |
 | | ... | *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}
+| | ... | \| 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}
 
-| Traffic should pass with maximum rate
+| Send ramp-up traffic
 | | [Documentation]
-| | ... | Send traffic at maximum rate.
+| | ... | 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 traffc for measurements.
+| | ... | - traffic_profile - Name of module defining traffic 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
+| | ... | - ramp_up_duration - Suitable traffic duration [s].
 | | ... | Type: float
-| |
-| | ... | *Arguments:*
-| | ... | - trial_duration - Duration of single trial [s].
+| | ... | - ramp_up_rate - Suitable unidirectional transmit rate [tps].
 | | ... | Type: float
-| | ... | - fail_no_traffic - Whether to fail on zero receive count.
-| | ... | Type: boolean
-| | ... | - trial_multiplicity - How many trials in this measurement.
-| | ... | Type: int
-| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - tx_port - TX port of TG, default 0.
-| | ... | Type: integer
-| | ... | - rx_port - RX port of TG, default 1.
-| | ... | Type: integer
+| | ... | - transaction_type - String identifier to determine how to count
+| | ... | transactions. Default is "packet".
 | |
 | | ... | *Example:*
 | |
-| | ... | \| Traffic should pass with maximum rate \| \${1} \| \${10.0} \
-| | ... | \| \${False} \| \${2} \| \${0} \| \${1} \|
-| |
-| | [Arguments] | ${trial_duration}=${trial_duration}
-| | ... | ${fail_no_traffic}=${True}
-| | ... | ${trial_multiplicity}=${trial_multiplicity}
-| | ... | ${traffic_directions}=${2} | ${tx_port}=${0} | ${rx_port}=${1}
-| | ... | ${latency}=${True}
-| |
-| | ${results}= | Send traffic at specified rate
-| | ... | ${trial_duration} | ${max_rate} | ${frame_size}
-| | ... | ${traffic_profile} | ${trial_multiplicity}
-| | ... | ${traffic_directions} | ${tx_port} | ${rx_port} | latency=${latency}
-| | Set Test Message | ${\n}Maximum Receive Rate trial results
-| | Set Test Message | in packets per second: ${results}
-| | ... | append=yes
-| | Run Keyword If | ${fail_no_traffic} | Fail if no traffic forwarded
+| | ... | \| 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}
 
 | Send traffic at specified rate
 | | [Documentation]
@@ -406,143 +359,194 @@
 | | ... | 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:*
 | | ... | - trial_duration - Duration of single trial [s]. Type: float
-| | ... | - rate - Target aggregate transmit rate [pps] / Connections per second
-| | ... | (CPS) for UDP/TCP flows. Type: float
-| | ... | - frame_size - L2 Frame Size [B]. Type: integer/string
-| | ... | - traffic_profile - Name of module defining traffc for measurements.
+| | ... | - rate - Target unidirectional transmit rate [tps]. Type: float
 | | ... | Type: string
 | | ... | - trial_multiplicity - How many trials in this measurement.
-| | ... | Type: int
-| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - tx_port - TX port of TG, default 0.
-| | ... | Type: integer
-| | ... | - rx_port - RX port of TG, default 1.
-| | ... | Type: integer
-| | ... | - extended_debug- True to enable extended debug.
 | | ... | 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:*
 | |
 | | ... | \| Send traffic at specified rate \| \${1.0} \| ${4000000.0} \
-| | ... | \| \${64} \| 3-node-IPv4 \| \${10} \| \${2} \| \${0} \| \${1} \
-| | ... | \${False} \|
-| |
-| | [Arguments] | ${trial_duration} | ${rate} | ${frame_size}
-| | ... | ${traffic_profile} | ${trial_multiplicity}=${trial_multiplicity}
-| | ... | ${traffic_directions}=${2} | ${tx_port}=${0} | ${rx_port}=${1}
-| | ... | ${extended_debug}=${extended_debug} | ${latency}=${True}
-| |
-| | 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}
-| | FOR | ${action} | IN | @{pre_stats}
+| | ... | \| \${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}
-| | | # 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}
-| | | ... | traffic_directions=${traffic_directions} | tx_port=${tx_port}
-| | | ... | rx_port=${rx_port} | latency=${latency}
-| | | ${rx} = | Get Received
-| | | ${rr} = | Evaluate | ${rx} / ${trial_duration}
-| | | Append To List | ${results} | ${rr}
+| | | 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 | @{post_stats}
+| | FOR | ${action} | IN | @{stat_post_trial}
 | | | Run Keyword | Additional Statistics Action For ${action}
 | | END
 | | Return From Keyword | ${results}
 
-| Measure and show latency at specified rate
+| Traffic should pass with maximum rate on iPerf3
 | | [Documentation]
-| | ... | Send traffic at specified rate, single trial.
-| | ... | Extract latency information and append it to text message.
-| | ... | The rate argument is int, so should not include "pps".
-| | ... | If the given rate is too low, a safe value is used instead.
+| | ... | Send traffic at maximum rate on iPerf3.
 | |
 | | ... | *Arguments:*
-| | ... | - message_prefix - Preface to test message addition. Type: string
-| | ... | - trial_duration - Duration of single trial [s]. Type: float
-| | ... | - rate - Rate [pps] for sending packets in case of T-Rex stateless
-| | ... | mode or multiplier of profile CPS in case of T-Rex astf mode.
+| | ... | - trial_duration - Duration of single trial [s].
 | | ... | Type: float
-| | ... | - frame_size - L2 Frame Size [B]. Type: integer/string
-| | ... | - traffic_profile - Name of module defining traffic for measurements.
-| | ... | Type: string
-| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - tx_port - TX port of TG, default 0. Type: integer
-| | ... | - rx_port - RX port of TG, default 1. Type: integer
-| | ... | - safe_rate - To apply if rate is below this, as latency pps is fixed.
-| | ... | In pps, type int.
+| | ... | - trial_multiplicity - How many trials in this measurement.
+| | ... | Type: integer
+| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic;
+| | ... | Type: integer
 | |
 | | ... | *Example:*
 | |
-| | ... | \| Measure and show latency at specified rate \| Latency at 90% NDR \
-| | ... | \| \${1.0} \| ${10000000} \| \${64} \| 3-node-IPv4 \| \${2} \
-| | ... | \| \${0} \| \${1} \| ${9500} \|
-| |
-| | [Arguments] | ${message_prefix} | ${trial_duration} | ${rate}
-| | ... | ${frame_size} | ${traffic_profile} | ${traffic_directions}=${2}
-| | ... | ${tx_port}=${0} | ${rx_port}=${1} | ${safe_rate}=${9001}
-| |
-| | ${real_rate} = | Evaluate | max(${rate}, ${safe_rate})
-| | # The following line is skipping some default arguments,
-| | # that is why subsequent arguments have to be named.
-| | Send traffic on tg | ${trial_duration} | ${real_rate} | ${frame_size}
-| | ... | ${traffic_profile} | warmup_time=${0}
-| | ... | traffic_directions=${traffic_directions} | tx_port=${tx_port}
-| | ... | rx_port=${rx_port} | latency=${True}
-| | ${latency} = | Get Latency Int
-| | Set Test Message | ${\n}${message_prefix} ${latency} | append=${True}
+| | ... | \| 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
 
-| Clear and show runtime counters with running traffic
+| Send iPerf3 traffic at specified 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
+| | ... | 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 [pps] for sending packets in case of T-Rex stateless
-| | ... | mode or multiplier of profile CPS in case of T-Rex astf mode.
+| | ... | - trial_duration - Duration of single trial [s].
 | | ... | Type: float
-| | ... | - frame_size - L2 Frame Size [B] or IMIX_v4_1. Type: integer/string
-| | ... | - traffic_profile - Name of module defining traffc for measurements.
-| | ... | Type: string
+| | ... | - 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: int
-| | ... | - tx_port - TX port of TG, default 0. Type: integer
-| | ... | - rx_port - RX port of TG, default 1. Type: integer
+| | ... | Type: integer
+| | ... | - extended_debug - True to enable extended debug.
+| | ... | Type: boolean
 | |
 | | ... | *Example:*
 | |
-| | ... | \| Clear and show runtime counters with running traffic \| \${10} \
-| | ... | \| ${4000000.0} \| \${64} \| 3-node-IPv4 \| \${2} \| \${0} \| \${1} \|
+| | ... | \| Send iPerf3 traffic at specified rate \| \${1.0} \| ${4000000.0} \
+| | ... | \| \${64} \| \${10} \| \${1} \| ${False} \|
 | |
-| | [Arguments] | ${duration} | ${rate} | ${frame_size} | ${traffic_profile}
-| | ... | ${traffic_directions}=${2} | ${tx_port}=${0} | ${rx_port}=${1}
+| | [Arguments] | ${trial_duration} | ${rate} | ${frame_size}
+| | ... | ${trial_multiplicity}=${trial_multiplicity}
+| | ... | ${traffic_directions}=${1} | ${extended_debug}=${extended_debug}
 | |
-| | # 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}
-| | ... | traffic_directions=${traffic_directions} | tx_port=${tx_port}
-| | ... | rx_port=${rx_port}
-| | FOR | ${action} | IN | @{pre_run_stats}
+| | 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
-| | Sleep | ${duration}
-| | FOR | ${action} | IN | @{post_run_stats}
+| | ${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
-| | Stop traffic on tg
+| | Return From Keyword | ${results}
 
 | Start Traffic on Background
 | | [Documentation]
@@ -553,29 +557,44 @@
 | | ... | *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
 | | ... | *Arguments:*
-| | ... | - rate - Rate [pps] for sending packets in case of T-Rex stateless
-| | ... | mode or multiplier of profile CPS in case of T-Rex astf mode.
+| | ... | - rate - Unidirectional rate [tps] for sending packets.
 | | ... | Type: float
-| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - tx_port - TX port of TG, default 0. Type: integer
-| | ... | - rx_port - RX port of TG, default 1. Type: integer
 | |
 | | ... | *Example:*
 | |
-| | ... | \| Start Traffic on Background \| ${4000000.0} \| \${2} \| \${0} \
-| | ... | \| \${1} \|
+| | ... | \| Start Traffic on Background \| ${4000000.0} \|
 | |
-| | [Arguments] | ${rate} | ${traffic_directions}=${2} | ${tx_port}=${0}
-| | ... | ${rx_port}=${1}
+| | [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 | ${-1} | ${rate} | ${frame_size} | ${traffic_profile}
-| | ... | warmup_time=${0} | async_call=${True} | latency=${False}
-| | ... | traffic_directions=${traffic_directions} | tx_port=${tx_port}
-| | ... | rx_port=${rx_port}
+| | Send traffic on tg
+| | ... | duration=${-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?
 
 | Stop Running Traffic
 | | [Documentation]
@@ -592,59 +611,41 @@
 | | ${result}= | Stop traffic on tg
 | | Return From Keyword | ${result}
 
-| Additional Statistics Action For vpp-clear-stats
-| | [Documentation]
-| | ... | Additional Statistics Action for clear VPP statistics.
-| |
-| | Clear Statistics On All DUTs | ${nodes}
-
-| Additional Statistics Action For vpp-show-stats
-| | [Documentation]
-| | ... | Additional Statistics Action for show VPP statistics.
-| |
-| | Show Statistics On All DUTs | ${nodes}
-
-| Additional Statistics Action For vpp-clear-runtime
-| | [Documentation]
-| | ... | Additional Statistics Action for clear VPP runtime.
-| |
-| | VPP Clear Runtime On All DUTs | ${nodes}
-
-| Additional Statistics Action For vpp-show-runtime
-| | [Documentation]
-| | ... | Additional Statistics Action for show VPP runtime.
-| |
-| | VPP Show Runtime On All DUTs | ${nodes}
-
-| Additional Statistics Action For vpp-enable-packettrace
-| | [Documentation]
-| | ... | Additional Statistics Action for enable VPP packet trace.
-| |
-| | 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 | ${extended_debug}==${True}
-| | ... | Show Packet Trace On All Duts | ${nodes} | maximum=${100}
-
-| Additional Statistics Action For vpp-enable-elog
+| Traffic should pass with maximum rate
 | | [Documentation]
-| | ... | Additional Statistics Action for enable VPP elog trace.
+| | ... | Send traffic at maximum rate.
+| | ... | Call \${resetter} (if defined) to reset DUT state before each trial.
+| | ... | Fail if no packets were forwarded.
 | |
-| | VPP Enable Elog Traces On All DUTs | ${nodes}
-
-| Additional Statistics Action For vpp-show-elog
-| | [Documentation]
-| | ... | Additional Statistics Action for show VPP elog trace.
+| | ... | *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
+| | ... | - max_rate - Calculated maximal transmit rate [tps].
+| | ... | Type: float
+| | ... | - transaction_type - String identifier to determine how to count
+| | ... | transactions. Default is "packet".
 | |
-| | Show Event Logger On All DUTs | ${nodes}
-
-| Additional Statistics Action For bash-perf-stat
-| | [Documentation]
-| | ... | Additional Statistics Action for bash command "perf stat".
+| | ... | *Example:*
 | |
-| | Run Keyword If | ${extended_debug}==${True}
-| | ... | Perf Stat On All DUTs | ${nodes}
\ No newline at end of file
+| | ... | \| 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