diff options
Diffstat (limited to 'resources/libraries/robot/performance/performance_utils.robot')
| -rw-r--r-- | resources/libraries/robot/performance/performance_utils.robot | 75 |
1 files changed, 73 insertions, 2 deletions
diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot index 66fd307451..b98d103beb 100644 --- a/resources/libraries/robot/performance/performance_utils.robot +++ b/resources/libraries/robot/performance/performance_utils.robot @@ -220,6 +220,42 @@ | | 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, @@ -244,7 +280,7 @@ | | ... | | [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}""" @@ -272,7 +308,7 @@ | | ... | | [Arguments] | ${result} | ${framesize} | | ... -| | ${framesize}= | Get Frame Size | ${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} @@ -284,6 +320,41 @@ | | 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 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. |