-# 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:
| Documentation
| ... | Performance suite keywords - utilities to find and verify NDR and PDR.
+*** Variables ***
+| ${trial_duration}= | ${PERF_TRIAL_DURATION}
+| ${trial_multiplicity}= | ${PERF_TRIAL_MULTIPLICITY}
+
*** Keywords ***
| Find NDR and PDR intervals using optimized search
| | [Documentation]
| | ... | 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.
+| | ... | 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.
| |
| | ... | *Test (or broader scope) variables read:*
| | ... | - traffic_profile - Name of module defining traffc for measurements.
| | ... | ${latency_duration}=${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}
| | Check NDRPDR interval validity | ${result.pdr_interval}
| | ... | ${packet_loss_ratio}
| | Check NDRPDR interval validity | ${result.ndr_interval}
-| | # 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}
+| | ${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 | 0.1 * ${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:
+| | ${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}
-| | ${rate}= | Evaluate | 0.9 * ${ndr_per_stream}
-| | Measure and show latency at specified rate | Latency at 90% NDR:
+| | ${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}
-| | ${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:
+| | # Rate needs to be high enough for latency streams.
+| | ${rate}= | Set Variable | ${9500}
+| | Measure and show latency at specified rate | Latency at 0% PDR:
| | ... | ${latency_duration} | ${rate}pps | ${framesize}
| | ... | ${traffic_profile} | ${traffic_directions}
-| | # Finally, a trial with runtime and other stats.
+| | # 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}pps | ${framesize} | ${traffic_profile}
+| | ... | traffic_directions=${traffic_directions}
| | Send traffic at specified rate
| | ... | ${1.0} | ${ndr_per_stream}pps | ${framesize} | ${traffic_profile}
| | ... | traffic_directions=${traffic_directions}
| | ... | ${final_trial_duration} | ${initial_trial_duration}
| | ... | ${number_of_intermediate_phases} | timeout=${timeout}
| | ... | doublings=${doublings} | traffic_directions=${traffic_directions}
-| | Return From Keyword | ${result.pdr_interval.measured_low.transmit_rate}
+| | Check NDRPDR interval validity | ${result.pdr_interval}
+| | ... | ${packet_loss_ratio}
+| | Return From Keyword | ${result.pdr_interval.measured_low.target_tr}
| Find critical load using PLRsearch
| | [Documentation]
| |
| | ${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.target_tr} | ${frame_size}
| | ... | ${result.ndr_interval.measured_low.latency}
| | Display single bound | NDR_UPPER
-| | ... | ${result.ndr_interval.measured_high.transmit_rate} | ${frame_size}
+| | ... | ${result.ndr_interval.measured_high.target_tr} | ${frame_size}
| | Display single bound | PDR_LOWER
-| | ... | ${result.pdr_interval.measured_low.transmit_rate} | ${frame_size}
+| | ... | ${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.transmit_rate} | ${frame_size}
+| | ... | ${result.pdr_interval.measured_high.target_tr} | ${frame_size}
| Display result of soak search
| | [Documentation]
| | ... | Type: float
| |
| | ... | *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
+| | ... | - trial_duration - Duration of single trial [s].
+| | ... | 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
+| | ... | - 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}
+| | [Arguments] | ${trial_duration}=${trial_duration}
+| | ... | ${fail_no_traffic}=${True}
+| | ... | ${trial_multiplicity}=${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}
+| | ${results}= | Send traffic at specified rate
+| | ... | ${trial_duration} | ${max_rate}pps | ${frame_size}
+| | ... | ${traffic_profile} | ${trial_multiplicity}
| | ... | ${traffic_directions} | ${tx_port} | ${rx_port}
| | Set Test Message | ${\n}Maximum Receive Rate trial results
| | Set Test Message | in packets per second: ${results}
| | ... | 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
+| | ... | - 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
+| | ... | - 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
-| | ... | - pkt_trace - True to enable packet trace. Type: boolean
+| | ... | - 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:*
| |
| | ... | \| 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}
+| | ... | ${traffic_profile} | ${trial_multiplicity}=${trial_multiplicity}
+| | ... | ${traffic_directions}=${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}
| | 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 | ${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}