X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=resources%2Flibraries%2Frobot%2Fperformance%2Fperformance_utils.robot;h=a4fd2fa161a5a660415fb0e2f90b2f87d54dd48e;hb=6ac704e7388409c6aa719e50f83d0e08ebd671a0;hp=198147be5d6fb10bab7f22ff6373e78cb88b0736;hpb=4fa06bcfa9ef951b9062ddfc85ce58dcb742bcf7;p=csit.git diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot index 198147be5d..a4fd2fa161 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) 2020 Cisco and/or its affiliates. # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at: @@ -15,16 +15,13 @@ | 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.TrafficGenerator | Library | resources.libraries.python.TrafficGenerator.OptimizedSearch | Library | resources.libraries.python.TrafficGenerator.TGDropRateSearchImpl | Library | resources.libraries.python.Trace | Variables | resources/libraries/python/Constants.py -| ... +| | Documentation | ... | Performance suite keywords - utilities to find and verify NDR and PDR. @@ -37,20 +34,17 @@ | | ... | Fail if a resulting lower bound has too high loss fraction. | | ... | Input rates are understood as uni-directional, | | ... | reported result contains aggregate 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. -| | ... +| | ... | Currently, the min_rate value is hardcoded to 90kpps, +| | ... | allowing measurement at 10% of the discovered rate +| | ... | without breaking latency streams. +| | | | ... | *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 -| | ... +| | | | ... | *Arguments:* | | ... | - packet_loss_ratio - Accepted loss during search. Type: float | | ... | - final_relative_width - Maximal width multiple of upper. Type: float @@ -61,21 +55,23 @@ | | ... | - 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} \| -| | ... +| | ... | \| \${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} +| | | | ${result} = | Perform optimized ndrpdr search | ${frame_size} -| | ... | ${traffic_profile} | ${10000} | ${max_rate} +| | ... | ${traffic_profile} | ${90000} | ${max_rate} | | ... | ${packet_loss_ratio} | ${final_relative_width} | | ... | ${final_trial_duration} | ${initial_trial_duration} | | ... | ${number_of_intermediate_phases} | timeout=${timeout} @@ -84,27 +80,47 @@ | | 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} - -| 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 +| | # Rate needs to be high enough for latency streams. +| | ${rate}= | Set Variable | ${9500} +| | Measure and show latency at specified rate | Latency at 0%: +| | ... | ${latency_duration} | ${rate}pps | ${framesize} +| | ... | ${traffic_profile} | ${traffic_directions} +| | ${ndr_sum}= | Set Variable | ${result.ndr_interval.measured_low.target_tr} +| | ${ndr_per_stream}= | Evaluate | ${ndr_sum} / float(${traffic_directions}) +| | ${rate}= | Evaluate | 0.1 * ${ndr_per_stream} +| | Measure and show latency at specified rate | Latency at 10% NDR: +| | ... | ${latency_duration} | ${rate}pps | ${framesize} +| | ... | ${traffic_profile} | ${traffic_directions} +| | ${rate}= | Evaluate | 0.5 * ${ndr_per_stream} +| | Measure and show latency at specified rate | Latency at 50% NDR: +| | ... | ${latency_duration} | ${rate}pps | ${framesize} +| | ... | ${traffic_profile} | ${traffic_directions} +| | ${rate}= | Evaluate | 0.9 * ${ndr_per_stream} +| | Measure and show latency at specified rate | Latency at 90% NDR: +| | ... | ${latency_duration} | ${rate}pps | ${framesize} +| | ... | ${traffic_profile} | ${traffic_directions} +| | ${pdr_sum}= | Set Variable | ${result.pdr_interval.measured_low.target_tr} +| | ${pdr_per_stream}= | Evaluate | ${pdr_sum} / float(${traffic_directions}) +| | ${rate}= | Evaluate | 0.1 * ${pdr_per_stream} +| | Measure and show latency at specified rate | Latency at 10% PDR: +| | ... | ${latency_duration} | ${rate}pps | ${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}pps | ${framesize} +| | ... | ${traffic_profile} | ${traffic_directions} +| | ${rate}= | Evaluate | 0.9 * ${pdr_per_stream} +| | Measure and show latency at specified rate | Latency at 90% PDR: +| | ... | ${latency_duration} | ${rate}pps | ${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} | ${ndr_per_stream}pps | ${framesize} | ${traffic_profile} +| | ... | traffic_directions=${traffic_directions} +| | Send traffic at specified rate +| | ... | ${1.0} | ${pdr_per_stream}pps | ${framesize} | ${traffic_profile} +| | ... | traffic_directions=${traffic_directions} | Find Throughput Using MLRsearch | | [Documentation] @@ -112,19 +128,14 @@ | | ... | aggregate throughput using MLRsearch algorithm. | | ... | Input rates are understood as uni-directional. | | ... | 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. -| | ... +| | | | ... | *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 -| | ... +| | | | ... | *Arguments:* | | ... | - packet_loss_ratio - Accepted loss during search. Type: float | | ... | - final_relative_width - Maximal width multiple of upper. Type: float @@ -135,28 +146,30 @@ | | ... | - 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 -| | ... +| | | | ... | *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} +| | ... | ${packet_loss_ratio} | | Return From Keyword | ${result.pdr_interval.measured_low.transmit_rate} | Find critical load using PLRsearch @@ -168,29 +181,28 @@ | | ... | Input rates are understood as uni-directional, | | ... | reported result contains aggregate rates. | | ... | Currently, the min_rate value is hardcoded to match test teardowns. -| | ... | Some inputs are read from variables to streamline suites. -| | ... +| | | | ... | *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 -| | ... +| | | | ... | *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} @@ -211,27 +223,46 @@ | | ... | 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 usec [min/avg/max] per stream: ${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, @@ -242,18 +273,18 @@ | | ... | 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.transmit_rate} | ${frame_size} @@ -275,24 +306,22 @@ | | ... | Sum of measured rates over streams | | ... | Bandwidth is calculated as: | | ... | (Throughput * (L2 Frame Size + IPG) * 8) -| | ... | TODO: Do we want to report some latency data, -| | ... | even if not measured at the reported bounds?. -| | ... +| | | | ... | *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 -| | ... +| | | | ... | *Returns:* | | ... | - Lower and upper bound of critical load [pps]. Type: 2-tuple of 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} @@ -306,18 +335,18 @@ | | [Documentation] | | ... | Extract loss ratio of lower bound of the interval. | | ... | Fail if it does not reach the allowed value. -| | ... +| | | | ... | *Arguments:* | | ... | - interval - Measured interval. Type: ReceiveRateInterval | | ... | - packet_loss_ratio - Accepted loss (0.0 for NDR). 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} @@ -330,76 +359,17 @@ | | ... | ${message}${\n}${message_zero} | ${message}${\n}${message_other} | | Fail | ${message} -| Perform additional measurements based on NDRPDR result -| | [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. -| | ... -| | ... | *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 -| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic. -| | ... | Type: int -| | ... -| | ... | *Example:* -| | ... | \| Perform additional measurements based on NDRPDR result \ -| | ... | \| \${result} \| \${64} \| 3-node-IPv4 \| \${2} \| -| | ... -| | [Arguments] | ${result} | ${framesize} | ${traffic_profile} -| | ... | ${traffic_directions}=${2} -| | ... -| | ${duration}= | Set Variable | ${2.0} -| | ${rate_sum}= | Set Variable | ${result.ndr_interval.measured_low.target_tr} -| | ${rate_per_stream}= | Evaluate | ${rate_sum} / float(${traffic_directions}) -| | Traffic should pass with no loss | ${duration} | ${rate_per_stream}pps -| | ... | ${framesize} | ${traffic_profile} | fail_on_loss=${False} -| | ... | traffic_directions=${traffic_directions} - -| Traffic should pass with no loss -| | [Documentation] -| | ... | Send traffic at specified rate. No packet loss is accepted at loss -| | ... | evaluation. -| | ... -| | ... | *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. -| | ... | Type: boolean -| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic. -| | ... | Type: int -| | ... -| | ... | *Example:* -| | ... -| | ... | \| Traffic should pass with no loss \| \${10} \| 4.0mpps \| \${64} \ -| | ... | \| 3-node-IPv4 \| \${2} \| -| | ... -| | [Arguments] | ${duration} | ${rate} | ${frame_size} | ${traffic_profile} -| | ... | ${fail_on_loss}=${True} | ${traffic_directions}=${2} -| | ... -| | Send traffic at specified rate | ${duration} | ${rate} | ${frame_size} -| | ... | ${traffic_profile} | traffic_directions=${traffic_directions} -| | Run Keyword If | ${fail_on_loss} | No traffic loss occurred - | Traffic should pass with maximum rate | | [Documentation] | | ... | Send traffic at maximum rate. -| | ... -| | ... | Some inputs are read from variables to streamline suites. -| | ... +| | | | ... | *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 -| | ... +| | | | ... | *Arguments:* | | ... | - subsamples - How many trials in this measurement. Type: int | | ... | - trial_duration - Duration of single trial [s]. Type: float @@ -408,32 +378,32 @@ | | ... | Type: int | | ... | - tx_port - TX port of TG, default 0. Type: integer | | ... | - rx_port - RX port of TG, default 1. Type: integer -| | ... +| | | | ... | *Example:* -| | ... +| | | | ... | \| Traffic should pass with maximum rate \| \${1} \| \${10.0} \ | | ... | \| \${False} \| \${2} \| \${0} \| \${1} \| -| | ... +| | | | [Arguments] | ${trial_duration}=${PERF_TRIAL_DURATION} | | ... | ${fail_no_traffic}=${True} | ${subsamples}=${PERF_TRIAL_MULTIPLICITY} | | ... | ${traffic_directions}=${2} | ${tx_port}=${0} | ${rx_port}=${1} -| | ... +| | | | ${results} = | Send traffic at specified rate | ${trial_duration} | | ... | ${max_rate}pps | ${frame_size} | ${traffic_profile} | ${subsamples} | | ... | ${traffic_directions} | ${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 | Send traffic at specified rate | | [Documentation] -| | ... | Send traffic at specified rate. +| | ... | 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. | | ... | 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 @@ -446,16 +416,16 @@ | | ... | - tx_port - TX port of TG, default 0. Type: integer | | ... | - rx_port - RX port of TG, default 1. Type: integer | | ... | - pkt_trace - True to enable packet trace. Type: boolean -| | ... +| | | | ... | *Example:* -| | ... +| | | | ... | \| Send traffic at specified rate \| \${1.0} \| 4.0mpps \| \${64} \ -| | ... | \| 3-node-IPv4 \| \${10} \| \${2} \| \${0} | \${1} \| \${False} -| | ... +| | ... | \| 3-node-IPv4 \| \${10} \| \${2} \| \${0} \| \${1} \| \${False} \| +| | | | [Arguments] | ${trial_duration} | ${rate} | ${frame_size} | | ... | ${traffic_profile} | ${subsamples}=${1} | ${traffic_directions}=${2} | | ... | ${tx_port}=${0} | ${rx_port}=${1} | ${pkt_trace}=${False} -| | ... +| | | | Clear and show runtime counters with running traffic | ${trial_duration} | | ... | ${rate} | ${frame_size} | ${traffic_profile} | | ... | ${traffic_directions} | ${tx_port} | ${rx_port} @@ -466,7 +436,7 @@ | | Run Keyword If | ${dut_stats}==${True} | | ... | VPP enable elog traces on all DUTs | ${nodes} | | ${results} = | Create List -| | :FOR | ${i} | IN RANGE | ${subsamples} +| | 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} @@ -476,6 +446,7 @@ | | | ${rx} = | Get Received | | | ${rr} = | Evaluate | ${rx} / ${trial_duration} | | | Append To List | ${results} | ${rr} +| | END | | Run Keyword If | ${dut_stats}==${True} | Show event logger on all DUTs | | ... | ${nodes} | | Run Keyword If | ${dut_stats}==${True} | Show statistics on all DUTs @@ -484,12 +455,48 @@ | | ... | Show Packet Trace On All Duts | ${nodes} | maximum=${100} | | Return From Keyword | ${results} +| Measure and show latency at specified rate +| | [Documentation] +| | ... | Send traffic at specified rate, single trial. +| | ... | Extract latency information and append it to text message. +| | ... | The rate argument should be TRex friendly, so it should include "pps". +| | +| | ... | *Arguments:* +| | ... | - message_prefix - Preface to test message addition. Type: string +| | ... | - 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 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 +| | +| | ... | *Example:* +| | +| | ... | \| Measure and show latency at specified rate \| Latency at 90% NDR \ +| | ... | \| \${1.0} \| 4.0mpps \| \${64} \| 3-node-IPv4 \| \${2} \| +| | +| | [Arguments] | ${message_prefix} | ${trial_duration} | ${rate} +| | ... | ${frame_size} | ${traffic_profile} | ${traffic_directions}=${2} +| | ... | ${tx_port}=${0} | ${rx_port}=${1} +| | +| | # 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} = | Get Latency Int +| | Set Test Message | ${\n}${message_prefix} ${latency} | append=${True} + | Clear and show runtime counters with running traffic | | [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 - Unidirectional rate for sending packets. Type: string @@ -500,35 +507,33 @@ | | ... | Type: int | | ... | - tx_port - TX port of TG, default 0. Type: integer | | ... | - rx_port - RX port of TG, default 1. Type: integer -| | ... +| | | | ... | *Example:* -| | ... +| | | | ... | \| Clear and show runtime counters with running traffic \| \${10} \ | | ... | \| 4.0mpps \| \${64} \| 3-node-IPv4 \| \${2} \| \${0} \| \${1} \| -| | ... +| | | | [Arguments] | ${duration} | ${rate} | ${frame_size} | ${traffic_profile} | | ... | ${traffic_directions}=${2} | ${tx_port}=${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} | | ... | traffic_directions=${traffic_directions} | tx_port=${tx_port} | | ... | rx_port=${rx_port} | | Run Keyword If | ${dut_stats}==${True} -| | ... | VPP clear runtime counters on all DUTs | ${nodes} +| | ... | VPP clear runtime on all DUTs | ${nodes} | | Sleep | ${duration} | | Run Keyword If | ${dut_stats}==${True} -| | ... | VPP show runtime counters on all DUTs | ${nodes} +| | ... | VPP show runtime on all DUTs | ${nodes} | | Stop traffic on tg | Start Traffic on Background | | [Documentation] | | ... | Start traffic at specified rate then return control to Robot. -| | ... | Useful if the test needs to do something while traffic is running. -| | ... | Just a wrapper around L1 keyword. -| | ... | -| | ... | TODO: How to make sure the traffic is stopped on any failure? -| | ... +| | ... | 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 @@ -539,15 +544,15 @@ | | ... | 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 \| 4.0mpps \| \${2} \| \${0} \ | | ... | \| \${1} \| -| | ... +| | | | [Arguments] | ${rate} | ${traffic_directions}=${2} | ${tx_port}=${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} @@ -558,14 +563,13 @@ | | [Documentation] | | ... | Stop the running traffic, return measurement result. | | ... | For bidirectional traffic, the reported values are bi-directional. -| | ... | Just a wrapper around L1 keyword. -| | ... | -| | ... | TODO: Tolerate if traffic was not started. -| | ... +| | +| | ... | *Returns:* +| | ... | - Measurement result. Type: ReceiveRateMeasurement +| | | | ... | *Example:* -| | ... +| | | | ... | \${result}= \| Stop Running Traffic \| -| | ... -| | Stop traffic on tg -| | ${result}= | Get Measurement Result +| | +| | ${result}= | Stop traffic on tg | | Return From Keyword | ${result}