diff options
Diffstat (limited to 'resources/libraries/robot/performance')
3 files changed, 188 insertions, 75 deletions
diff --git a/resources/libraries/robot/performance/performance_display.robot b/resources/libraries/robot/performance/performance_display.robot index db2b522091..a6df6f7b3a 100644 --- a/resources/libraries/robot/performance/performance_display.robot +++ b/resources/libraries/robot/performance/performance_display.robot @@ -1,4 +1,4 @@ -# Copyright (c) 2021 Cisco and/or its affiliates. +# Copyright (c) 2022 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: @@ -46,19 +46,19 @@ | | ... | ${message}${\n}${message_zero} | ${message}${\n}${message_other} | | Fail | ${message} -| Compute bandwidth +| Compute Bandwidth | | [Documentation] | | ... | Compute (bidir) bandwidth from given (unidir) transaction rate. | | ... -| | ... | This keyword reads "ppta" and "avg_frame_size" set elsewhere. -| | ... | The implementation should work for both pps and cps rates. +| | ... | This keyword reads \${ppta} and \${avg_aggregated_frame_size} set +| | ... | elsewhere. The implementation should work for both pps and cps rates. | | ... | | | ... | *Arguments:* | | ... | - tps - Transaction rate (unidirectional) [tps]. Type: float | | ... | | ... | *Returns:* | | ... | - Computed bandwidth in Gbps. -| | ... | - Computed aggregate packet rate in pps. +| | ... | - Computed aggregated packet rate in pps. | | | | ... | *Example:* | | @@ -68,7 +68,7 @@ | | | | ${ppta} = | Get Packets Per Transaction Aggregated | | ${pps} = | Evaluate | ${tps} * ${ppta} -| | ${bandwidth} = | Evaluate | ${pps} * (${avg_frame_size}+20)*8 / 1e9 +| | ${bandwidth} = | Evaluate | ${pps} * (${avg_aggregated_frame_size}+20)*8/1e9 | | Return From Keyword | ${bandwidth} | ${pps} | Display Reconfig Test Message @@ -96,7 +96,7 @@ | Display result of NDRPDR search | | [Documentation] | | ... | Display result of NDR+PDR search, both quantities, both bounds, -| | ... | aggregate in units given by trasaction type, e.g. by default +| | ... | aggregated, in units given by trasaction type, e.g. by default | | ... | in packet per seconds and Gbps total bandwidth | | ... | (for initial packet size). | | ... | @@ -115,7 +115,7 @@ | | ... | - transaction_type - String identifier to determine how to count | | ... | transactions. Default is "packet". | | ... | *Arguments:* -| | ... | - result - Measured result data. Aggregate rate, tps or pps. +| | ... | - result - Measured result data. Aggregated rate, tps or pps. | | ... | Type: NdrPdrResult | | | | ... | *Example:* @@ -175,7 +175,7 @@ | | ... | it is in transactions per second. Bidirectional traffic | | ... | transaction is understood as having 2 packets, for this purpose. | | ... | -| | ... | Pps values are aggregate in packet per seconds, +| | ... | Pps values are aggregated, in packet per seconds | | ... | and Gbps total bandwidth (for initial packet size). | | ... | | | ... | Througput is calculated as: @@ -231,8 +231,8 @@ | Display single pps bound | | [Documentation] -| | ... | Display one pps bound of NDR+PDR search, -| | ... | aggregate in packet per seconds and Gbps total bandwidth +| | ... | Display one pps bound of NDR+PDR search, aggregated, +| | ... | in packet per seconds and Gbps total bandwidth | | ... | (for initial packet size). | | ... | | | ... | The bound to display is given as target transfer rate, it is assumed diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot index 8350db0205..c90fc7434d 100644 --- a/resources/libraries/robot/performance/performance_utils.robot +++ b/resources/libraries/robot/performance/performance_utils.robot @@ -46,7 +46,7 @@ | | ... | 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. +| | ... | Reported result may contain aggregated pps rates, depending on test. | | ... | Call \${resetter} (if defined) to reset DUT state before each trial. | | | | ... | *Test (or broader scope) variables read:* @@ -105,7 +105,7 @@ | | ... | 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. +| | ... | Reported result may contain aggregated 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. @@ -468,7 +468,7 @@ | | ... | *Arguments:* | | ... | - trial_duration - Duration of single trial [s]. | | ... | Type: float -| | ... | - rate - Target aggregate transmit rate [bps] / Bits per second +| | ... | - rate - Target aggregated transmit rate [bps] / Bits per second. | | ... | Type: float | | ... | - frame_size - L2 Frame Size [B]. | | ... | Type: integer or string diff --git a/resources/libraries/robot/performance/performance_vars.robot b/resources/libraries/robot/performance/performance_vars.robot index 4f2cc50fa3..f75d585e4b 100644 --- a/resources/libraries/robot/performance/performance_vars.robot +++ b/resources/libraries/robot/performance/performance_vars.robot @@ -1,4 +1,4 @@ -# Copyright (c) 2021 Cisco and/or its affiliates. +# Copyright (c) 2022 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: @@ -155,11 +155,11 @@ | Get Packets Per Transaction Aggregated | | [Documentation] | | ... | Return value of \${packets_per_transaction_aggregated}; -| | ... | if not defined, assume traffic is symmetric and compute -| | ... | from unidirectional values. +| | ... | if not defined, assume traffic is symmetric (or unidirectional) +| | ... | and compute from unidirectional values. | | -| | ... | The return value is used when reporting PPS values from TPS found -| | ... | by some search (e.g. NDRPDR). +| | ... | The return value is used when reporting PPS (and bandwidth) values +| | ... | from TPS found by some search (e.g. NDRPDR). | | ... | Return type: integer. | | | | ... | *Example:* @@ -169,7 +169,6 @@ | | ${ppta} = | Get Variable Value | \${packets_per_transaction_aggregated} | | ... | ${0} | | Return From Keyword If | "${ppta}" != "0" | ${ppta} -| | # TODO: Insert TCP computation from packet size here. | | ${pptad} = | Get Packets Per Transaction And Direction | | ${traffic_directions} = | Get Traffic Directions | | # We do not support ASTF profiles with multiple transactions, yet. @@ -181,8 +180,9 @@ | | ... | Return value of \${packets_per_transaction_and_direction}, | | ... | or ${1} if not defined. | | -| | ... | The return value is used when computing max rate (TPS), -| | ... | so for asymmetric transaction use the more numerous direction. +| | ... | The return value is used when computing max rate (TPS) +| | ... | from packet level (pps or bps) limits. +| | ... | For asymmetric transactions, use the more numerous direction. | | ... | Return type: integer. | | | | ... | *Example:* @@ -392,19 +392,14 @@ | Set Jumbo | | [Documentation] -| | ... | For jumbo frames detection, the maximal packet size is relevant, -| | ... | encapsulation overhead (if any) has effect. -| | -| | ... | This keyword computes jumbo boolean (some suites need that for -| | ... | configuration decisions). +| | ... | Call Set Numeric Frame Sizes and set jumbo based on max framesize. | | ... | To streamline suite autogeneration, both input and output values | | ... | are communicated as test (or broader scope) variables, | | ... | instead of explicit arguments and return values. | | | | ... | *Test (or broader scope) variables read:* | | ... | - overhead - Overhead in bytes; default value: 0. Type: integer -| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or -| | ... | string +| | ... | - frame_size - Framesize. Type: integer or string | | | | ... | *Test variables set:* | | ... | - jumbo - Jumbo boolean, true if jumbo packet support has to be @@ -414,32 +409,22 @@ | | | | ... | \| Set Jumbo \| | | -| | # Already called by Set Max Rate And Jumbo, but some suites (e.g. device) -| | # are calling this directly. +| | # Some suites (e.g. device) are not calling Set Max Rate And Jumbo. | | Set Numeric Frame Sizes -| | ${jumbo} = | Set Variable If | ${max_frame_size} < 1522 -| | ... | ${False} | ${True} +| | ${jumbo} = | Evaluate | ${max_frame_size} >= 1522 | | Set Test Variable | \${jumbo} | Set Max Rate And Jumbo | | [Documentation] -| | ... | Input framesize can be either integer in case of a single packet -| | ... | in stream, or IMIX string defining mix of packets. -| | ... | For jumbo frames detection, the maximal packet size is relevant. -| | ... | For maximal transmit rate, the average packet size is relevant. -| | ... | In both cases, encapsulation overhead (if any) has effect. -| | ... | The maximal rate is computed from NIC name. -| | ... | The implementation works by mapping from exact -| | ... | whitelisted NIC names. -| | ... | The mapping is hardcoded in nic_limits.yaml -| | ... | TODO: Make the mapping from NIC names case insensistive. -| | | | ... | This keyword computes maximal unidirectional transmit rate | | ... | and jumbo boolean (some suites need that for configuration decisions). | | ... | To streamline suite autogeneration, both input and output values | | ... | are communicated as test (or broader scope) variables, | | ... | instead of explicit arguments and return values. | | +| | ... | For correctly applying bandwidth limit, average frame size is used, +| | ... | see Set Numeric Frame Sizes keyword documentation for details. +| | | | ... | If this keyword detects the test is interested in (unidirectional) | | ... | transactons per second maximal rate (tps), that is returned (not pps). | | @@ -448,8 +433,13 @@ | | ... | - overhead - Overhead in bytes; default value: 0. Type: integer | | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or | | ... | string -| | ... | - packets_per_transaction_and_direction - Pps-tps conversion. -| | ... | Optional, default 1. +| | ... | - ASTF_N_DATA_FRAMES - Number of data frames per transaction +| | ... | and direction. Type: integer +| | ... | - packets_per_transaction_and_direction - May be unset. +| | ... | See Get Packets Per Transaction And Direction keyword. Type: integer +| | ... | - packets_per_transaction_aggregated - May be unset. +| | ... | See Get Packets Per Transaction Aggregated keyword. Type: integer +| | ... | - TEST_TAGS - Robot tags of this test. Type: list of string | | | | ... | *Test variables set:* | | ... | - max_rate - Calculated unidirectional maximal transmit rate [pps]. @@ -457,8 +447,11 @@ | | ... | Type: float | | ... | - jumbo - Jumbo boolean, true if jumbo packet support has to be | | ... | enabled. Type: boolean -| | ... | avg_frame_size - Average frame size including overhead. Type: float -| | ... | max_frame_size - Maximal frame size including overhead. Type: float +| | ... | - max_frame_size - Maximal frame size including overhead. Type: float +| | ... | - avg_directional_frame_size - Average frame size including overhead +| | ... | for the more loaded direction. Type: float +| | ... | - avg_aggregated_frame_size - Average frame size including overhead +| | ... | across both traffic directions. Type: float | | | | ... | *Example:* | | @@ -470,68 +463,188 @@ | | ... | ${NIC_NAME_TO_PPS_LIMIT} | ${nic_name} | | ${bps_limit} = | Get From Dictionary | | ... | ${NIC_NAME_TO_BPS_LIMIT} | ${nic_name} -| | Set Numeric Frame Sizes -| | # We need to add 20B (Ethernet preamble and inter-frame gap) -| | # to avg_frame_size -| | ${rate} = | Evaluate | ${bps_limit} / ((${avg_frame_size} + 20.0) * 8) +| | # Set Jumbo also calls Set Numeric Frame Sizes. +| | Set Jumbo +| | # We need to add 20B (Ethernet preamble and inter-frame gap). +| | ${adfs} = | Get Variable Value | \${avg_directional_frame_size} +| | ${rate} = | Evaluate | ${bps_limit} / ((${adfs} + 20.0) * 8) | | ${max_rate} = | Set Variable If | ${rate} > ${pps_limit} | | ... | ${pps_limit} | ${rate} | | ${pptad} = | Get Packets Per Transaction And Direction | | ${max_rate} = | Evaluate | ${max_rate} / ${pptad} | | Set Test Variable | \${max_rate} -| | Set Jumbo | Set Numeric Frame Sizes | | [Documentation] | | ... | Framesize can be either integer in case of a single packet | | ... | in stream, or set of packets in case of IMIX type or simmilar. | | ... | For jumbo decisions, we need a numeric size of the biggest packet. -| | ... | For max rate decisions, we need a numeric average packet size. -| | ... | This keyword computes both and sets them as test variables. +| | ... | For bandwidth limit decisions, we need a numeric average packet size +| | ... | in the more bit intensive direction if traffic is non-symmetric. +| | ... | Computation of max_rate assumes it is also the more pps direction +| | ... | (so it can have smaller average frame size than the aggregated one). +| | ... | Average (across both directions) frame size is also used +| | ... | for displaying the bidirectional bandwidth forwarded. +| | ... | This keyword computes all three values (accounting for overheads) +| | ... | and sets them as test variables. | | | | ... | Each suite sets a value named \${overhead}, | | ... | which describes by how many bytes the frames on DUT-DUT link | | ... | are larger (due to encapsulation) than those -| | ... | on the primary TG-DUT link. But for some suites that value +| | ... | on the primary TG-DUT link. For some suites that value | | ... | can be negaive (if TG-DUT is encapsulated more heavily). | | ... | For calculations in this keyword, we need largest sizes | | ... | across links, so zero is used if \${overhead} is negative. | | +| | ... | The other overhead is from TCP control packets (only IPv4 supported). +| | ... | TCP_CPS tests have SYN frames of length 78B and other frames 70B. +| | ... | The more loaded is client-to-server direction with 1 SYN and 3 other, +| | ... | across both directions it is 2 SYN and 5 other. +| | ... | TCP_PPS and TCP_TPUT tests have one other control packet less +| | ... | (in the less loaded direction), but they do contain data frames. +| | | | ... | *Test variables read:* | | ... | - frame_size - Framesize. Type: integer or string | | ... | - overhead - Overhead in bytes; default value: ${0}. Type: integer +| | ... | - ASTF_N_DATA_FRAMES - Number of data frames per transaction +| | ... | and direction. Type: integer +| | ... | - packets_per_transaction_and_direction - May be unset. +| | ... | See Get Packets Per Transaction And Direction keyword. Type: integer +| | ... | - packets_per_transaction_aggregated - May be unset. +| | ... | See Get Packets Per Transaction Aggregated keyword. Type: integer +| | ... | - TEST_TAGS - Robot tags of this test. Type: list of string | | | | ... | *Test variables set* -| | ... | avg_frame_size - Average frame size including overhead. Type: float -| | ... | max_frame_size - Maximal frame size including overhead. Type: float +| | ... | - max_frame_size - Maximal frame size including overhead. Type: float +| | ... | - avg_directional_frame_size - Average frame size including overhead +| | ... | for the more loaded direction. Type: float +| | ... | - avg_aggregated_frame_size - Average frame size including overhead +| | ... | across both traffic directions. Type: float | | | | ... | *Example:* | | | | ... | \| Set Numeric Frame Sizes \| | | +| | ${bare_max_frame_size} = | Run Keyword If +| | ... | '${frame_size}' == 'IMIX_v4_1' | Set Variable | ${1518.0} +| | ... | ELSE | Convert To Number | ${frame_size} +| | ${bafs} = | Run Keyword If +| | ... | '${frame_size}' == 'IMIX_v4_1' | Set Variable | ${353.8333333333333} +| | ... | ELSE | Convert To Number | ${frame_size} +| | # Long boolean formula in 2 lines. +| | ${is_tcp_pps} = | Evaluate | 'TCP_PPS' in ${TEST_TAGS} +| | ${is_tcp_tput} = | Evaluate | ${is_tcp_pps} or 'TCP_TPUT' in ${TEST_TAGS} +| | ${avg_dir_frame_size} | ${avg_agg_frame_size} = | Run Keyword If +| | ... | 'TCP_CPS' in ${TEST_TAGS} | Apply Tcp Cps Proto Overhead | ${bafs} +| | ... | ELSE IF | ${is_tcp_tput} | Apply Tcp Tput Proto Overhead | ${bafs} +| | ... | ELSE | Set Variable | ${bafs} | ${bafs} | | ${max_overhead} = | Set Variable If | ${overhead} >= 0 | ${overhead} | ${0} -| | ${bare_avg_frame_size} = | Run Keyword If | '${frame_size}' == 'IMIX_v4_1' -| | ... | Set Variable | ${353.83333} -| | ... | ELSE -| | ... | Convert To Number | ${frame_size} -| | # Do not use $max_overhead (without braces), that does not tolerate string. -| | ${avg_frame_size} = | Evaluate | ${bare_avg_frame_size} + ${max_overhead} -| | Set Test Variable | \${avg_frame_size} -| | ${bare_max_frame_size} = | Run Keyword If | '${frame_size}' == 'IMIX_v4_1' -| | ... | Set Variable | ${1518} -| | ... | ELSE -| | ... | Convert To Number | ${frame_size} -| | ${max_frame_size} = | Evaluate | $bare_max_frame_size + $max_overhead -| | Set Test Variable | ${max_frame_size} +| | ${mfs} = | Evaluate | ${bare_max_frame_size} + ${max_overhead} +| | ${adfs} = | Evaluate | ${avg_dir_frame_size} + ${max_overhead} +| | ${aafs} = | Evaluate | ${avg_agg_frame_size} + ${max_overhead} +| | Set Test Variable | \${max_frame_size} | ${mfs} +| | Set Test Variable | \${avg_directional_frame_size} | ${adfs} +| | Set Test Variable | \${avg_aggregated_frame_size} | ${aafs} + +| Apply Tcp Cps Proto Overhead +| | [Documentation] +| | ... | Recompute average frame size for TCP CPS test cases. +| | +| | ... | This is contitionally called from Set Numeric Frame Sizes. +| | ... | In Robot Framework it is more convenient to wrap such a block +| | ... | as a standalone keyword to Run Keyword If. +| | +| | ... | *Test variables read:* +| | ... | - ASTF_N_DATA_FRAMES - Number of data frames per transaction +| | ... | and direction. Usually set globally. Type: integer +| | ... | - packets_per_transaction_and_direction - May be unset. +| | ... | See Get Packets Per Transaction And Direction keyword. Type: integer +| | ... | - packets_per_transaction_aggregated - May be unset. +| | ... | See Get Packets Per Transaction Aggregated keyword. Type: integer +| | +| | ... | *Arguments:* +| | ... | - bare_avg_frame_size - Average numeric framesize without overheads. +| | +| | ... | *Returns:* +| | ... | - avg_dir_frame_size - Average framesize for more loaded direction. +| | ... | - avg_agg_frame_size - Average framesize across both directions. +| | +| | ... | *Example:* +| | +| | ... | \| \${adfs} \| \${aafs} = \| Apply Tcp Cps Proto Overhead \| \${bafs} +| | +| | [Arguments] | ${bare_avg_frame_size} +| | +| | # Increase max_frame_size for TCP tests if used for more than just jumbo. +| | Run Keyword If | ${bare_avg_frame_size} != 64 +| | ... | Fail | TCP_CPS tests are only supported for (nominal) 64B frames. +| | # TODO: Unify with packets_per_transaction_* variables when adding PCAP. +| | ${pptad} = | Get Packets Per Transaction And Direction +| | ${ppta} = | Get Packets Per Transaction Aggregated +| | ${avg_dir_frame_size} = | Evaluate | (78.0 * 1 + 70.0 * 3) / (1 + 3) +| | Run Keyword If | '${pptad}' != '4' +| | ... | Fail | TCP CPS with pptad '${pptad}' != '4'. +| | ${avg_agg_frame_size} = | Evaluate | (78.0 * 2 + 70.0 * 5) / (2 + 5) +| | Run Keyword If | '${ppta}' != '7' +| | ... | Fail | TCP CPS with ppta '${ppta}' != '7'. +| | Return From Keyword | ${avg_dir_frame_size} | ${avg_agg_frame_size} + +| Apply Tcp Tput Proto Overhead +| | [Documentation] +| | ... | Recompute average frame size for TCP TPUT (or PPS) test cases. +| | +| | ... | This is contitionally called from Set Numeric Frame Sizes. +| | ... | In Robot Framework it is more convenient to wrap such a block +| | ... | as a standalone keyword to Run Keyword If. +| | +| | ... | *Test variables read:* +| | ... | - ASTF_N_DATA_FRAMES - Number of data frames per transaction +| | ... | and direction. Usually set globally. Type: integer +| | ... | - packets_per_transaction_and_direction - May be unset. +| | ... | See Get Packets Per Transaction And Direction keyword. Type: integer +| | ... | - packets_per_transaction_aggregated - May be unset. +| | ... | See Get Packets Per Transaction Aggregated keyword. Type: integer +| | +| | ... | *Arguments:* +| | ... | - bare_framesize - Average numeric framesize without overheads. +| | +| | ... | *Returns:* +| | ... | - avg_dir_frame_size - Average framesize for more loaded direction. +| | ... | - avg_agg_frame_size - Average framesize across both directions. +| | +| | ... | *Example:* +| | +| | ... | \| \${adfs} \| \${aafs} = \| Apply Tcp Cps Proto Overhead \| \${bafs} +| | +| | [Arguments] | ${bare_framesize} +| | +| | # TODO: Unify with packets_per_transaction_* variables when adding PCAP. +| | ${pptad} = | Get Packets Per Transaction And Direction +| | ${ppta} = | Get Packets Per Transaction Aggregated +| | # Long float formula in 4 lines. +| | ${numerator} = | Evaluate | ${bare_framesize} * ${ASTF_N_DATA_FRAMES} +| | ${numerator} = | Evaluate | 78.0 * 1 + 70.0 * 3 + ${numerator} +| | ${denominator} = | Evaluate | 1 + 3 + ${ASTF_N_DATA_FRAMES} +| | ${avg_dir_frame_size} = | Evaluate | ${numerator} / ${denominator} +| | Run Keyword If | '${pptad}' != '${denominator}' +| | ... | Fail | TCP TPUT with pptad '${pptad}' != '${denominator}'. +| | # Long float formula in 4 lines. +| | ${numerator} = | Evaluate | ${bare_framesize} * 2 * ${ASTF_N_DATA_FRAMES} +| | ${numerator} = | Evaluate | 78.0 * 2 + 70.0 * 4 + ${numerator} +| | ${denominator} = | Evaluate | 2 + 4 + 2 * ${ASTF_N_DATA_FRAMES} +| | ${avg_agg_frame_size} = | Evaluate | ${numerator} / ${denominator} +| | Run Keyword If | '${ppta}' != '${denominator}' +| | ... | Fail | TCP TPUT with ppta '${ppta}' != '${denominator}'. +| | Return From Keyword | ${avg_dir_frame_size} | ${avg_agg_frame_size} | Set Rates For Policer | | [Documentation] | | ... | Policer tests need these values, -| | ... | currently computed from \${avg_frame_size}. +| | ... | currently computed from \${avg_directional_frame_size}. | | ... | TODO: Verify the units match and computation is correct. | | | | ... | *Test (or broader scope) variables read:* -| | ... | - avg_frame_size - Average L2 Frame Size [B]. Type: float +| | ... | - avg_directional_frame_size - Average L2 Frame Size [B]. Type: float | | ... | Set by Set Max Rate And Jumbo keyword. | | | | ... | *Test variables set:* @@ -542,5 +655,5 @@ | | | | ... | \| Set Rates For Policer \| | | -| | Set Test Variable | \${eb} | ${avg_frame_size} -| | Set Test Variable | \${cb} | ${avg_frame_size} +| | Set Test Variable | \${eb} | ${avg_directional_frame_size} +| | Set Test Variable | \${cb} | ${avg_directional_frame_size} |