diff options
Diffstat (limited to 'resources/libraries/robot/performance')
| -rw-r--r-- | resources/libraries/robot/performance/performance_utils.robot | 132 |
1 files changed, 114 insertions, 18 deletions
diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot index 2cb8d07cb4..4cabe5660e 100644 --- a/resources/libraries/robot/performance/performance_utils.robot +++ b/resources/libraries/robot/performance/performance_utils.robot @@ -38,11 +38,99 @@ | ... | and PDR. *** Keywords *** +| Get Max Rate And Jumbo +| | [Documentation] +| | ... | Argument 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 line limit bandwidth, +| | ... | but NICs also have an independent limit in packet rate. +| | ... | For some NICs, the limit is not reachable (bps limit is stricter), +| | ... | in those cases None is used (meaning no limiting). +| | ... +| | ... | This keyword returns computed maximal unidirectional transmit rate +| | ... | and jumbo boolean (some suites need that). +| | ... +| | ... | *Arguments:* +| | ... | - bps_limit - Line rate limit in bps. Type: integer +| | ... | - framesize - Framesize in bytes or IMIX. Type: integer or string +| | ... | - overhead - Overhead in bytes. Default: 0. Type: integer +| | ... | - pps_limit - NIC limit rate value in pps. Type: integer or None +| | ... +| | ... | *Returns:* +| | ... | - 2-tuple, consisting of: +| | ... | - Calculated unidirectional maximal transmit rate. +| | ... | Type: integer or float +| | ... | - Jumbo boolean, true if jumbo packet support has to be enabled. +| | ... | Type: boolean +| | ... +| | ... | *Example:* +| | ... +| | ... | \| Get Max Rate And Jumbo | \${10000000} \| IMIX_v4_1 \ +| | ... | \| overhead=\${40} \| pps_limit=\${18750000} \| +| | ... +| | [Arguments] | ${bps_limit} | ${framesize} +| | ... | ${overhead}=${0} | ${pps_limit}=${None} +| | ... +| | ${avg_size} = | Set Variable If | '${framesize}' == 'IMIX_v4_1' +| | ... | ${353.83333} | ${framesize} +| | ${max_size} = | Set Variable If | '${framesize}' == 'IMIX_v4_1' +| | ... | ${1518} | ${framesize} +| | # swo := size_with_overhead +| | ${avg_swo} = | Evaluate | ${avg_size} + ${overhead} +| | ${max_swo} = | Evaluate | ${max_size} + ${overhead} +| | ${jumbo} = | Set Variable If | ${max_swo} < 1522 +| | ... | ${False} | ${True} +| | # For testing None see: https://groups.google.com/\ +| | # forum/#!topic/robotframework-users/XntFz0ocD9E +| | ${limit_set} = | Set Variable | ${pps_limit != None} +| | ${rate} = | Evaluate | (${bps_limit}/((${avg_swo}+20)*8)).__trunc__() +| | ${max_rate} = | Set Variable If | ${limit_set} and ${rate} > ${pps_limit} +| | ... | ${pps_limit} | ${rate} +| | Return From Keyword | ${max_rate} | ${jumbo} + +| Get Max Rate And Jumbo And Handle Multi Seg +| | [Documentation] +| | ... | This keyword adds correct multi seg configuration, +| | ... | then returns the result of Get Max Rate And Jumbo keyword. +| | ... +| | ... | See Documentation of Get Max Rate And Jumbo for more details. +| | ... +| | ... | *Arguments:* +| | ... | - bps_limit - Line rate limit in bps. Type: integer +| | ... | - framesize - Framesize in bytes. Type: integer or string +| | ... | - overhead - Overhead in bytes. Default: 0. Type: integer +| | ... | - pps_limit - NIC limit rate value in pps. Type: integer or None +| | ... +| | ... | *Returns:* +| | ... | - 2-tuple, consisting of: +| | ... | - Calculated unidirectional maximal transmit rate. +| | ... | Type: integer or float +| | ... | - Jumbo boolean, true if jumbo packet support has to be enabled. +| | ... | Type: boolean +| | ... +| | ... | *Example:* +| | ... +| | ... | \| Get Max Rate And Jumbo And Handle Multi Seg | \${10000000} \ +| | ... | \| IMIX_v4_1 \| overhead=\${40} \| pps_limit=\${18750000} \| +| | ... +| | [Arguments] | ${bps_limit} | ${framesize} +| | ... | ${overhead}=${0} | ${pps_limit}=${None} +| | ... +| | ${max_rate} | ${jumbo} = | Get Max Rate And Jumbo +| | ... | ${bps_limit} | ${framesize} | ${overhead} | ${pps_limit} +| | Run Keyword If | not ${jumbo} | Add no multi seg to all DUTs +| | Return From Keyword | ${max_rate} | ${jumbo} + | Calculate pps | | [Documentation] | | ... | Calculate pps for given rate and L2 frame size, | | ... | additional 20B are added to L2 frame size as padding. | | ... +| | ... | FIXME: Migrate callers to Get Max Rate And Jumbo +| | ... | | ... | *Arguments* | | ... | - bps - Rate in bps. Type: integer | | ... | - framesize - L2 frame size in Bytes. Type: integer @@ -66,6 +154,8 @@ | | ... | in stream, or set of packets in case of IMIX type or simmilar. | | ... | This keyword returns average framesize. | | ... +| | ... | FIXME: Migrate callers to Get Max Rate And Jumbo +| | ... | | ... | *Arguments:* | | ... | - framesize - Framesize. Type: integer or string | | ... @@ -362,6 +452,9 @@ | | ... | Display results as formatted test message. | | ... | Fail if a resulting lower bound has too high loss fraction. | | ... | Proceed with Perform additional measurements based on NDRPDR result. +| | ... | Input rates are understood as uni-directional, +| | ... | reported result contains bi-directional rates. +| | ... | | ... | TODO: Should the trial duration of the additional | | ... | measurements be configurable? | | ... @@ -381,19 +474,20 @@ | | ... | | ... | \| Find NDR and PDR intervals using optimized search \| \${64} \| \ | | ... | 3-node-IPv4 \| \${100000} \| \${14880952} \| \${0.005} \| \${0.005} \ -| | ... | \| \${30.0} \| \${1.0} \| \${2} \| ${600.0} +| | ... | \| \${30.0} \| \${1.0} \| \${2} \| ${600.0} \| | | ... | | [Arguments] | ${frame_size} | ${topology_type} | ${minimum_transmit_rate} | | ... | ${maximum_transmit_rate} | ${packet_loss_ratio}=${0.005} | | ... | ${final_relative_width}=${0.005} | ${final_trial_duration}=${30.0} | | ... | ${initial_trial_duration}=${1.0} -| | ... | ${number_of_intermediate_phases}=${2} | ${timeout}=${600.0} -| | ... -| | ${result}= | Perform optimized ndrpdr search | ${frame_size} -| | ... | ${topology_type} | ${minimum_transmit_rate} | ${maximum_transmit_rate} -| | ... | ${packet_loss_ratio} | ${final_relative_width} -| | ... | ${final_trial_duration} | ${initial_trial_duration} -| | ... | ${number_of_intermediate_phases} | timeout=${timeout} +| | ... | ${number_of_intermediate_phases}=${2} | ${timeout}=${720.0} +| | ... +| | ${result} = | Perform optimized ndrpdr search | ${frame_size} +| | ... | ${topology_type} | ${minimum_transmit_rate*2} +| | ... | ${maximum_transmit_rate*2} | ${packet_loss_ratio} +| | ... | ${final_relative_width} | ${final_trial_duration} +| | ... | ${initial_trial_duration} | ${number_of_intermediate_phases} +| | ... | timeout=${timeout} | | Display result of NDRPDR search | ${result} | ${frame_size} | | Check NDRPDR interval validity | ${result.pdr_interval} | | ... | ${packet_loss_ratio} @@ -421,7 +515,7 @@ | | ... | *Example:* | | ... | | ... | \| Display single bound \| NDR lower bound \| \${12345.67} \ -| | ... | \| \${64} \| show_latency=\${EMPTY} +| | ... | \| \${64} \| show_latency=\${EMPTY} \| | | ... | | [Arguments] | ${text} | ${rate_total} | ${framesize} | ${latency}=${EMPTY} | | ... @@ -449,7 +543,7 @@ | | ... | | ... | *Example:* | | ... -| | ... | \| Display result of NDRPDR search \| \${result} \| \${64} +| | ... | \| Display result of NDRPDR search \| \${result} \| \${64} \| | | ... | | [Arguments] | ${result} | ${framesize} | | ... @@ -477,15 +571,17 @@ | | ... | *Example:* | | ... | | ... | \| Check NDRPDR interval validity \| \${result.pdr_interval} \ -| | ... | \| \${0.005} +| | ... | \| \${0.005} \| | | ... | | [Arguments] | ${interval} | ${packet_loss_ratio}=${0.0} | | ... -| | ${lower_bound_lf}= | Set Variable | ${interval.measured_low.loss_fraction} +| | ${lower_bound_lf} = | Set Variable | ${interval.measured_low.loss_fraction} | | Return From Keyword If | ${lower_bound_lf} <= ${packet_loss_ratio} -| | ${messagge}= | Catenate | SEPARATOR=${SPACE} -| | ... | Lower bound fraction ${lower_bound_lf} -| | ... | does not reach ${packet_loss_ratio}. +| | ${message}= | Catenate | SEPARATOR=${SPACE} +| | ... | Minimal rate loss fraction ${lower_bound_lf} +| | ... | does not reach target ${packet_loss_ratio}. +| | ${message} = | Set Variable If | ${lower_bound_lf} >= 1.0 +| | ... | ${message}${\n}Zero packets forwarded! | ${message} | | Fail | ${message} | Perform additional measurements based on NDRPDR result @@ -503,7 +599,7 @@ | | ... | | ... | *Example:* | | ... | \| Perform additional measurements based on NDRPDR result \ -| | ... | \| \${result} \| ${64} \| 3-node-IPv4 +| | ... | \| \${result} \| ${64} \| 3-node-IPv4 \| | | ... | | [Arguments] | ${result} | ${framesize} | ${topology_type} | | ... @@ -673,7 +769,7 @@ | | ... | *Example:* | | ... | | ... | \| Traffic should pass with maximum rate \| 4.0mpps \| 64 \ -| | ... | \| 3-node-IPv4 \| ${1} \| ${10.0} | ${False} +| | ... | \| 3-node-IPv4 \| ${1} \| ${10.0} | ${False} \| | | ... | | [Arguments] | ${rate} | ${framesize} | ${topology_type} | | ... | ${trial_duration}=${perf_trial_duration} | ${fail_no_traffic}=${True} @@ -703,7 +799,7 @@ | | ... | *Example:* | | ... | | ... | \| Send traffic at specified rate \| ${1.0} \| 4.0mpps \| 64 \ -| | ... | \| 3-node-IPv4 \| ${10} +| | ... | \| 3-node-IPv4 \| ${10} \| | | ... | | [Arguments] | ${trial_duration} | ${rate} | ${framesize} | | ... | ${topology_type} | ${subsamples}=${1} |