-| | ... | 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,
-| | ... | 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
-| | ... | 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
-| | ... | - framesize - 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} | ${framesize} | ${latency}=${EMPTY}
-| | ...
-| | ${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}"""
-| | Set Test Message | ${\n}LATENCY usec [min/avg/max] per stream: ${latency}
-| | ... | append=yes
-
-| Display result of NDRPDR search
-| | [Documentation]
-| | ... | Display result of NDR+PDR search, both quantities, both 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
-| | ... | The given result should contain latency data as well.
-| | ...
-| | ... | *Arguments:*
-| | ... | - result - Measured result data per stream [pps]. Type: NdrPdrResult
-| | ... | - framesize - L2 Frame Size [B]. Type: integer
-| | ...
-| | ... | *Example:*
-| | ...
-| | ... | \| Display result of NDRPDR search \| \${result} \| \${64} \|
-| | ...
-| | [Arguments] | ${result} | ${framesize}
-| | ...
-| | ${framesize} = | Get 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 | NDR_UPPER
-| | ... | ${result.ndr_interval.measured_high.transmit_rate} | ${framesize}
-| | Display single bound | PDR_LOWER
-| | ... | ${result.pdr_interval.measured_low.transmit_rate} | ${framesize}
-| | ... | ${result.pdr_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
-| | ...