-# Copyright (c) 2018 Cisco and/or its affiliates.
+# Copyright (c) 2019 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:
| Resource | resources/libraries/robot/l2/l2_xconnect.robot
| Resource | resources/libraries/robot/ip/ip4.robot
| Resource | resources/libraries/robot/ip/ip6.robot
-| Resource | resources/libraries/robot/vm/qemu.robot
| Resource | resources/libraries/robot/l2/tagging.robot
| Documentation | Performance suite keywords - utilities to find and verify NDR
| ... | and PDR.
*** Keywords ***
+| Get Average Frame Size
+| | [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.
+| | ... | This keyword returns average framesize, as float or argument type.
+| | ...
+| | ... | *Arguments:*
+| | ... | - framesize - Framesize. Type: integer or string
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Get Average Frame Size \| IMIX_v4_1 \|
+| | ...
+| | [Arguments] | ${framesize}
+| | ...
+| | Return From Keyword If | '${framesize}' == 'IMIX_v4_1' | ${353.83333}
+| | Return From Keyword | ${framesize}
+
| Get Max Rate And Jumbo
| | [Documentation]
| | ... | Argument framesize can be either integer in case of a single packet
| | [Arguments] | ${bps_limit} | ${framesize}
| | ... | ${overhead}=${0} | ${pps_limit}=${None}
| | ...
-| | ${avg_size} = | Set Variable If | '${framesize}' == 'IMIX_v4_1'
-| | ... | ${353.83333} | ${framesize}
+| | ${avg_size} = | Get Average Frame Size | ${framesize}
| | ${max_size} = | Set Variable If | '${framesize}' == 'IMIX_v4_1'
| | ... | ${1518} | ${framesize}
| | # swo := size_with_overhead
| | # For testing None see: https://groups.google.com/\
| | # forum/#!topic/robotframework-users/XntFz0ocD9E
| | ${limit_set} = | Set Variable | ${pps_limit != None}
+| | # TODO: Can our code handle float rate?
| | ${rate} = | Evaluate | (${bps_limit}/((${avg_swo}+20)*8)).__trunc__()
| | ${max_rate} = | Set Variable If | ${limit_set} and ${rate} > ${pps_limit}
| | ... | ${pps_limit} | ${rate}
| | 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
-| | ...
-| | ... | *Return*
-| | ... | - Calculated pps. Type: integer
-| | ...
-| | ... | *Example:*
-| | ...
-| | ... | \| Calculate pps \| 10000000000 \| 64 \|
-| | ...
-| | [Arguments] | ${bps} | ${framesize}
-| | ...
-| | ${framesize}= | Get Frame Size | ${framesize}
-| | ${ret}= | Evaluate | (${bps}/((${framesize}+20)*8)).__trunc__()
-| | Return From Keyword | ${ret}
-
-| Get Frame Size
-| | [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.
-| | ... | This keyword returns average framesize.
-| | ...
-| | ... | FIXME: Migrate callers to Get Max Rate And Jumbo
-| | ...
-| | ... | *Arguments:*
-| | ... | - framesize - Framesize. Type: integer or string
-| | ...
-| | ... | *Example:*
-| | ...
-| | ... | \| Get Frame Size \| IMIX_v4_1 \|
-| | ...
-| | [Arguments] | ${framesize}
-| | ...
-| | Return From Keyword If | '${framesize}' == 'IMIX_v4_1' | ${353.83333}
-| | Return From Keyword | ${framesize}
-
| Find NDR and PDR intervals using optimized search
| | [Documentation]
| | ... | Find boundaries for RFC2544 compatible NDR and PDR values
| | Perform additional measurements based on NDRPDR result
| | ... | ${result} | ${frame_size} | ${topology_type}
+| Find critical load using PLRsearch
+| | [Documentation]
+| | ... | Find boundaries for troughput (of given target loss ratio)
+| | ... | using PLRsearch algorithm.
+| | ... | Display results as formatted test message.
+| | ... | Fail if computed lower bound is below minimal rate.
+| | ... | Input rates are understood as uni-directional,
+| | ... | reported result contains bi-directional rates.
+| | ... | TODO: Any additional measurements for debug purposes?
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - topology_type - Topology type. Type: string
+| | ... | - minimum_transmit_rate - Lower limit of search [pps]. Type: float
+| | ... | - maximum_transmit_rate - Upper limit of search [pps]. Type: float
+| | ... | - packet_loss_ratio - Accepted loss during search. Type: float
+| | ... | - timeout - Stop when search duration is longer [s]. Type: float
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find critical load usingPLR search \| \${64} \| \
+| | ... | 3-node-IPv4 \| \${100000} \| \${14880952} \| \${1e-7} \| \${1800} \
+| | ...
+| | [Arguments] | ${frame_size} | ${topology_type} | ${minimum_transmit_rate}
+| | ... | ${maximum_transmit_rate} | ${packet_loss_ratio}=${1e-7}
+| | ... | ${timeout}=${1800.0}
+| | ...
+| | ${min_rate} = | Set Variable | ${minimum_transmit_rate*2}
+| | ${average} | ${stdev} = | Perform soak search | ${frame_size}
+| | ... | ${topology_type} | ${min_rate} | ${maximum_transmit_rate*2}
+| | ... | ${packet_loss_ratio} | timeout=${timeout}
+| | ${lower} | ${upper} = | Display result of soak search
+| | ... | ${average} | ${stdev} | ${frame_size}
+| | Should Not Be True | ${lower} < ${min_rate}
+| | ... | Lower bound ${lower} is below bidirectional minimum ${min_rate}.
+
| Display single bound
| | [Documentation]
| | ... | Display one bound of NDR+PDR search,
| | ...
| | [Arguments] | ${text} | ${rate_total} | ${framesize} | ${latency}=${EMPTY}
| | ...
-| | ${bandwidth_total}= | Evaluate | ${rate_total}*(${framesize}+20)*8/(10**9)
+| | ${bandwidth_total} = | Evaluate | ${rate_total} * (${framesize}+20)*8 / 1e9
| | Set Test Message | ${\n}${text}: ${rate_total} pps, | append=yes
| | Set Test Message | ${bandwidth_total} Gbps (untagged) | append=yes
| | Return From Keyword If | not """${latency}"""
| | ...
| | [Arguments] | ${result} | ${framesize}
| | ...
-| | ${framesize}= | Get Frame Size | ${framesize}
+| | ${framesize} = | Get Average Frame Size | ${framesize}
| | Display single bound | NDR_LOWER
| | ... | ${result.ndr_interval.measured_low.transmit_rate} | ${framesize}
| | ... | ${result.ndr_interval.measured_low.latency}
| | Display single bound | PDR_UPPER
| | ... | ${result.pdr_interval.measured_high.transmit_rate} | ${framesize}
+| Display result of soak search
+| | [Documentation]
+| | ... | Display result of soak search, avg+-stdev, as upper/lower bounds,
+| | ... | in packet per seconds (total and per stream)
+| | ... | and Gbps total bandwidth with untagged packet.
+| | ... | Througput is calculated as:
+| | ... | Measured rate per stream * Total number of streams
+| | ... | Bandwidth is calculated as:
+| | ... | (Throughput * (L2 Frame Size + IPG) * 8) / Max bitrate of NIC
+| | ... | TODO: Do we want to report some latency data,
+| | ... | even if not measured at the reported bounds?.
+| | ...
+| | ... | *Arguments:*
+| | ... | - avg - Estimated average critical load [pps]. Type: float
+| | ... | - stdev - Standard deviation of critical load [pps]. Type: float
+| | ... | - framesize - L2 Frame Size [B]. Type: integer
+| | ...
+| | ... | *Returns:*
+| | ... | - Lower and upper bound of critical load [pps]. Type: 2-tuple of float
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Display result of soak search \| \${100000} \| \${100} \| \${64} \|
+| | ...
+| | [Arguments] | ${avg} | ${stdev} | ${framesize}
+| | ...
+| | ${framesize} = | Get Average Frame Size | ${framesize}
+| | ${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} | ${framesize}
+| | Display single bound | PLRsearch upper bound: | ${upper} | ${framesize}
+| | Return From Keyword | ${lower} | ${upper}
+
| Check NDRPDR interval validity
| | [Documentation]
| | ... | Extract loss ratio of lower bound of the interval.
| | Traffic should pass with no loss | ${duration} | ${rate_per_stream}pps
| | ... | ${framesize} | ${topology_type} | fail_on_loss=${False}
-| Measure latency pps
-| | [Documentation]
-| | ... | Send traffic at specified rate. Measure min/avg/max latency
-| | ...
-| | ... | *Arguments:*
-| | ... | - duration - Duration of traffic run [s]. Type: integer
-| | ... | - rate - Rate for sending packets. Type: integer
-| | ... | - framesize - L2 Frame Size [B] or IMIX_v4_1. Type: integer/string
-| | ... | - topology_type - Topology type. Type: string
-| | ...
-| | ... | *Example:*
-| | ...
-| | ... | \| Measure latency \| 10 \| 4.0 \| 64 \| 3-node-IPv4 \|
-| | ...
-| | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
-| | ...
-| | Return From Keyword If | ${rate} <= 10000 | ${-1}
-| | Send traffic on tg | ${duration} | ${rate}pps | ${framesize}
-| | ... | ${topology_type} | warmup_time=0
-| | Run keyword and return | Get latency
-
| Traffic should pass with no loss
| | [Documentation]
| | ... | Send traffic at specified rate. No packet loss is accepted at loss
| | ... | - 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
+| | ... | - unidirection - False if traffic is bidirectional. Type: boolean
+| | ... | - 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 \| 4.0mpps \| 64 \
-| | ... | \| 3-node-IPv4 \| ${1} \| ${10.0} | ${False} \|
+| | ... | \| 3-node-IPv4 \| ${1} \| ${10.0} \| ${False}
+| | ... | \| ${False} \| ${0} | ${1} \|
| | ...
| | [Arguments] | ${rate} | ${framesize} | ${topology_type}
| | ... | ${trial_duration}=${perf_trial_duration} | ${fail_no_traffic}=${True}
| | ... | ${subsamples}=${perf_trial_multiplicity}
+| | ... | ${unidirection}=${False} | ${tx_port}=${0} | ${rx_port}=${1}
| | ...
| | ${results} = | Send traffic at specified rate | ${trial_duration} | ${rate}
-| | ... | ${framesize} | ${topology_type} | ${subsamples}
+| | ... | ${framesize} | ${topology_type} | ${subsamples} | ${unidirection}
+| | ... | ${tx_port} | ${rx_port}
| | Set Test Message | ${\n}Maximum Receive Rate trial results
| | Set Test Message | in packets per second: ${results}
| | ... | append=yes
| | ... | - framesize - L2 Frame Size [B]. Type: integer/string
| | ... | - topology_type - Topology type. Type: string
| | ... | - subsamples - How many trials in this measurement. Type: int
+| | ... | - unidirection - False if traffic is bidirectional. Type: boolean
+| | ... | - tx_port - TX port of TG, default 0. Type: integer
+| | ... | - rx_port - RX port of TG, default 1. Type: integer
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Send traffic at specified rate \| ${1.0} \| 4.0mpps \| 64 \
-| | ... | \| 3-node-IPv4 \| ${10} \|
+| | ... | \| 3-node-IPv4 \| ${10} \| ${False} \| ${0} | ${1} \|
| | ...
| | [Arguments] | ${trial_duration} | ${rate} | ${framesize}
-| | ... | ${topology_type} | ${subsamples}=${1}
+| | ... | ${topology_type} | ${subsamples}=${1} | ${unidirection}=${False}
+| | ... | ${tx_port}=${0} | ${rx_port}=${1}
| | ...
| | Clear and show runtime counters with running traffic | ${trial_duration}
| | ... | ${rate} | ${framesize} | ${topology_type}
+| | ... | ${unidirection} | ${tx_port} | ${rx_port}
| | Run Keyword If | ${dut_stats}==${True} | Clear all counters on all DUTs
| | Run Keyword If | ${dut_stats}==${True} and ${pkt_trace}==${True}
| | ... | VPP Enable Traces On All DUTs | ${nodes}
| | ... | VPP enable elog traces on all DUTs | ${nodes}
| | ${results} = | Create List
| | :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} | ${framesize}
-| | | ... | ${topology_type} | warmup_time=0
+| | | ... | ${topology_type} | warmup_time=${0} | unidirection=${unidirection}
+| | | ... | tx_port=${tx_port} | rx_port=${rx_port}
| | | ${rx} = | Get Received
| | | ${rr} = | Evaluate | ${rx} / ${trial_duration}
| | | Append To List | ${results} | ${rr}
| | ... | - rate - Rate for sending packets. Type: string
| | ... | - framesize - L2 Frame Size [B] or IMIX_v4_1. Type: integer/string
| | ... | - topology_type - Topology type. Type: string
+| | ... | - unidirection - False if traffic is bidirectional. Type: boolean
+| | ... | - 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 partial loss \| 10 \| 4.0mpps \| 64 \
-| | ... | \| 3-node-IPv4 \| 0.5 \| percentage \|
+| | ... | \| Clear and show runtime counters with running traffic \| 10 \
+| | ... | \| 4.0mpps \| 64 \| 3-node-IPv4 \| ${False} \| ${0} | ${1} \|
| | ...
| | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
+| | ... | ${unidirection}=${False} | ${tx_port}=${0} | ${rx_port}=${1}
| | ...
-| | Send traffic on tg | -1 | ${rate} | ${framesize} | ${topology_type}
-| | ... | warmup_time=0 | async_call=${True} | latency=${False}
+| | Send traffic on tg | ${-1} | ${rate} | ${framesize} | ${topology_type}
+| | ... | warmup_time=${0} | async_call=${True} | latency=${False}
+| | ... | unidirection=${unidirection} | tx_port=${tx_port} | rx_port=${rx_port}
| | Run Keyword If | ${dut_stats}==${True}
| | ... | Clear runtime counters on all DUTs | ${nodes}
| | Sleep | ${duration}
| | Stop traffic on tg
| Create network function CPU list
+| | # TODO: Is there a better place for this keyword?
+| | # It is not exactly a performance utility.
| | [Documentation]
| | ... | Create list of CPUs allocated for network function base on SUT/DUT
| | ... | placement and other network functions placement.
Code Review / csit.git / blobdiff