Find PDR using binary search

- JIRA: CSIT-72
- modify libraries for PDR search evaluation
- write robot framework keywords for PDR search
- write Performance Test Cases using PDR

Change-Id: Id06a2a7f78fe8626c221afe4178c5c30cc599762
Signed-off-by: Peter Mikus <pmikus@cisco.com>

1 files changed, 292 insertions, 4 deletions

diff --git a/resources/libraries/robot/performance.robot b/resources/libraries/robot/performance.robot
index 5c8af8ede2..6c99e1d5aa 100644
--- a/resources/libraries/robot/performance.robot
+++ b/resources/libraries/robot/performance.robot
@@ -61,6 +61,18 @@
 | | Set Suite Variable | ${10Ge_linerate_pps_9000B}
 | | Set Suite Variable | ${10Ge_linerate_pps_9004B}
 
+| Setup performance global Variables
+| | [Documentation] | Setup performance global Variables
+| | ...
+| | ... | _NOTE:_ This KW sets following suite variables:
+| | ... | - ${glob_loss_acceptance} - Loss acceptance treshold
+| | ... | - ${glob_loss_acceptance_type} - Loss acceptance treshold type
+| | ...
+| | ${glob_loss_acceptance}= | Set Variable | 0.5
+| | ${glob_loss_acceptance_type}= | Set Variable | percentage
+| | Set Suite Variable | ${glob_loss_acceptance}
+| | Set Suite Variable | ${glob_loss_acceptance_type}
+
 | 3-node circular Topology Variables Setup
 | | Append Nodes | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['DUT2']}
 | | ...          | ${nodes['TG']}
@@ -183,6 +195,7 @@
 | | Setup default startup configuration of VPP on all DUTs
 | | Update All Interface Data On All Nodes | ${nodes}
 | | Setup performance rate Variables
+| | Setup performance global Variables
 | | 3-node circular Topology Variables Setup
 | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2}
 | | ...                          | ${dut1} | ${dut1_if1} | ${dut1_if2}
@@ -194,6 +207,7 @@
 | | Setup default startup configuration of VPP on all DUTs
 | | Update All Interface Data On All Nodes | ${nodes}
 | | Setup performance rate Variables
+| | Setup performance global Variables
 | | 3-node circular Topology Variables Setup with DUT interface model
 | | ... | ${nic_model}
 | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2}
@@ -205,7 +219,24 @@
 | | Teardown traffic generator | ${tg}
 
 | Find NDR using linear search and pps
-| | [Documentation] | Find throughput by using RFC2544 linear search
+| | [Documentation] | Find throughput by using RFC2544 linear search with
+| | ...             | non drop rate
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${start_rate} - Initial start rate [pps]. Type: float
+| | ... | - ${step_rate} - Step of linear search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find NDR using linear search and pps \| 64 \| 5000000 \| \
+| | ... | \| 100000 \| 3-node-IPv4 \| 100000 \| 14880952
 | | [Arguments] | ${framesize} | ${start_rate} | ${step_rate}
 | | ...         | ${topology_type} | ${min_rate} | ${max_rate}
 | | ${duration}= | Set Variable | 10
@@ -221,8 +252,69 @@
 | | ...                              | ${framesize} | ${topology_type}
 | | ...                              | fail_on_loss=${False}
 
+| Find PDR using linear search and pps
+| | [Documentation] | Find throughput by using RFC2544 linear search with
+| | ...             | partial drop rate, with PDR threshold 0.5%.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${start_rate} - Initial start rate [pps]. Type: float
+| | ... | - ${step_rate} - Step of linear search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find PDR using linear search and pps \| 64 \| 5000000 \
+| | ... | \| 100000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 0.5 \| percentage
+| | [Arguments] | ${framesize} | ${start_rate} | ${step_rate}
+| | ...         | ${topology_type} | ${min_rate} | ${max_rate}
+| | ...         | ${loss_acceptance}=0 | ${loss_acceptance_type}='frames'
+| | ${duration}= | Set Variable | 10
+| | Set Duration | ${duration}
+| | Set Search Rate Boundaries | ${max_rate} | ${min_rate}
+| | Set Search Linear Step | ${step_rate}
+| | Set Search Frame Size | ${framesize}
+| | Set Search Rate Type pps
+| | Set Loss Acceptance | ${loss_acceptance}
+| | Run Keyword If | '${loss_acceptance_type}' == 'percentage'
+| | ...            | Set Loss Acceptance Type Percentage
+| | Linear Search | ${start_rate} | ${topology_type}
+| | ${rate_per_stream}= | Verify Search Result
+| | Display result of PDR search | ${rate_per_stream} | ${framesize} | 2
+| | ...                          | ${loss_acceptance} | ${loss_acceptance_type}
+| | Traffic should pass with partial loss | ${duration} | ${rate_per_stream}pps
+| | ...                                   | ${framesize} | ${topology_type}
+| | ...                                   | ${loss_acceptance}
+| | ...                                   | ${loss_acceptance_type}
+| | ...                                   | fail_on_loss=${False}
+
 | Find NDR using binary search and pps
-| | [Documentation] | Find throughput by using RFC2544 binary search
+| | [Documentation] | Find throughput by using RFC2544 binary search with
+| | ...             | non drop rate
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${binary_min} - Lower boundary of search [pps]. Type: float
+| | ... | - ${binary_max} - Upper boundary of search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${threshold} - Threshold to stop search [pps]. Type: integer
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find NDR using binary search and pps \| 64 \| 6000000 \
+| | ... | \| 12000000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 50000
 | | [Arguments] | ${framesize} | ${binary_min} | ${binary_max}
 | | ...         | ${topology_type} | ${min_rate} | ${max_rate} | ${threshold}
 | | ${duration}= | Set Variable | 10
@@ -238,9 +330,71 @@
 | | ...                              | ${framesize} | ${topology_type}
 | | ...                              | fail_on_loss=${False}
 
+| Find PDR using binary search and pps
+| | [Documentation] | Find throughput by using RFC2544 binary search with
+| | ...             | partial drop rate, with PDR threshold 0.5%.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${binary_min} - Lower boundary of search [pps]. Type: float
+| | ... | - ${binary_max} - Upper boundary of search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${threshold} - Threshold to stop search [pps]. Type: integer
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find PDR using binary search and pps \| 64 \| 6000000 \
+| | ... | \| 12000000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 50000 \| 0.5 \
+| | ... | \| percentage
+| | [Arguments] | ${framesize} | ${binary_min} | ${binary_max}
+| | ...         | ${topology_type} | ${min_rate} | ${max_rate} | ${threshold}
+| | ...         | ${loss_acceptance}=0 | ${loss_acceptance_type}='frames'
+| | ${duration}= | Set Variable | 10
+| | Set Duration | ${duration}
+| | Set Search Rate Boundaries | ${max_rate} | ${min_rate}
+| | Set Search Frame Size | ${framesize}
+| | Set Search Rate Type pps
+| | Set Loss Acceptance | ${loss_acceptance}
+| | Run Keyword If | '${loss_acceptance_type}' == 'percentage'
+| | ...            | Set Loss Acceptance Type Percentage
+| | Set Binary Convergence Threshold | ${threshold}
+| | Binary Search | ${binary_min} | ${binary_max} | ${topology_type}
+| | ${rate_per_stream}= | Verify Search Result
+| | Display result of PDR search | ${rate_per_stream} | ${framesize} | 2
+| | ...                          | ${loss_acceptance} | ${loss_acceptance_type}
+| | Traffic should pass with partial loss | ${duration} | ${rate_per_stream}pps
+| | ...                                   | ${framesize} | ${topology_type}
+| | ...                                   | ${loss_acceptance}
+| | ...                                   | ${loss_acceptance_type}
+| | ...                                   | fail_on_loss=${False}
+
 | Find NDR using combined search and pps
 | | [Documentation] | Find throughput by using RFC2544 combined search
-| | ...             | (linear + binary)
+| | ...             | (linear + binary) with non drop rate
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${start_rate} - Initial start rate [pps]. Type: float
+| | ... | - ${step_rate} - Step of linear search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${threshold} - Threshold to stop search [pps]. Type: integer
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find NDR using combined search and pps \| 64 \| 5000000 \
+| | ... | \| 100000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 5000
 | | [Arguments] | ${framesize} | ${start_rate} | ${step_rate}
 | | ...         | ${topology_type} | ${min_rate} | ${max_rate} | ${threshold}
 | | ${duration}= | Set Variable | 10
@@ -257,9 +411,68 @@
 | | ...                              | ${framesize} | ${topology_type}
 | | ...                              | fail_on_loss=${False}
 
+| Find PDR using combined search and pps
+| | [Documentation] | Find throughput by using RFC2544 combined search
+| | ...             | (linear + binary) with partial drop rate, with PDR
+| | ...             | threshold 0.5%.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${start_rate} - Initial start rate [pps]. Type: float
+| | ... | - ${step_rate} - Step of linear search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${threshold} - Threshold to stop search [pps]. Type: integer
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find PDR using combined search and pps \| 64 \| 5000000 \
+| | ... | \| 100000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 5000 \| 0.5 \
+| | ... | \| percentage
+| | [Arguments] | ${framesize} | ${start_rate} | ${step_rate}
+| | ...         | ${topology_type} | ${min_rate} | ${max_rate} | ${threshold}
+| | ...         | ${loss_acceptance}=0 | ${loss_acceptance_type}='frames'
+| | ${duration}= | Set Variable | 10
+| | Set Duration | ${duration}
+| | Set Search Rate Boundaries | ${max_rate} | ${min_rate}
+| | Set Search Linear Step | ${step_rate}
+| | Set Search Frame Size | ${framesize}
+| | Set Search Rate Type pps
+| | Set Loss Acceptance | ${loss_acceptance}
+| | Run Keyword If | '${loss_acceptance_type}' == 'percentage'
+| | ...            | Set Loss Acceptance Type Percentage
+| | Set Binary Convergence Threshold | ${threshold}
+| | Combined Search | ${start_rate} | ${topology_type}
+| | ${rate_per_stream}= | Verify Search Result
+| | Display result of PDR search | ${rate_per_stream} | ${framesize} | 2
+| | ...                          | ${loss_acceptance} | ${loss_acceptance_type}
+| | Traffic should pass with partial loss | ${duration} | ${rate_per_stream}pps
+| | ...                                   | ${framesize} | ${topology_type}
+| | ...                                   | ${loss_acceptance}
+| | ...                                   | ${loss_acceptance_type}
+| | ...                                   | fail_on_loss=${False}
+
 | Display result of NDR search
 | | [Documentation] | Display result of NDR search in packet per seconds (total
-| | ...             | and per stream) and Gbps
+| | ...             | and per stream) and Gbps.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${rate_per_stream} - Measured rate per stream [pps]. Type: string
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${nr_streams} - Total number of streams. Type: integer
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Display result of NDR search \| 4400000 \| 64 \| 2
 | | [Arguments] | ${rate_per_stream} | ${framesize} | ${nr_streams}
 | | ${rate_total}= | Evaluate | ${rate_per_stream}*${nr_streams}
 | | ${bandwidth_total}= | Evaluate | ${rate_total}*(${framesize}+20)*8/(10**9)
@@ -267,7 +480,51 @@
 | | Set Test Message | (${nr_streams}x ${rate_per_stream} pps) | append=yes
 | | Set Test Message | FINAL_BANDWIDTH: ${bandwidth_total} Gbps | append=yes
 
+| Display result of PDR search
+| | [Documentation] | Display result of PDR search in packet per seconds (total
+| | ...             | and per stream) and Gbps.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${rate_per_stream} - Measured rate per stream [pps]. Type: string
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${nr_streams} - Total number of streams. Type: integer
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Display result of PDR search \| 4400000 \| 64 \| 2 \| 0.5 \
+| | ... | \| percentage
+| | [Arguments] | ${rate_per_stream} | ${framesize} | ${nr_streams}
+| | ...         | ${loss_acceptance} | ${loss_acceptance_type}
+| | ${rate_total}= | Evaluate | ${rate_per_stream}*${nr_streams}
+| | ${bandwidth_total}= | Evaluate | ${rate_total}*(${framesize}+20)*8/(10**9)
+| | Set Test Message | FINAL_RATE: ${rate_total} pps
+| | Set Test Message | (${nr_streams}x ${rate_per_stream} pps) | append=yes
+| | Set Test Message | FINAL_BANDWIDTH: ${bandwidth_total} Gbps | append=yes
+| | Set Test Message | ${\n}LOSS_ACCEPTANCE: ${loss_acceptance} ${loss_acceptance_type}
+| | ...              | append=yes
+
 | Traffic should pass with no loss
+| | [Documentation] | Send traffic at specified rate. No packet loss is
+| | ...             | accepted at loss evaluation.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${duration} - Duration of traffic run [s]. Type: integer
+| | ... | - ${rate} - Rate for sending packets. Type: string
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Traffic should pass with no loss \| 10 \| 4.0mpps \| 64 \
+| | ... | \| 3-node-IPv4
 | | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
 | | ...         | ${fail_on_loss}=${True}
 | | Clear and show runtime counters with running traffic | ${duration}
@@ -278,6 +535,37 @@
 | | Show statistics on all DUTs
 | | Run Keyword If | ${fail_on_loss} | No traffic loss occurred
 
+| Traffic should pass with partial loss
+| | [Documentation] | Send traffic at specified rate. Partial packet loss is
+| | ...             | accepted within loss acceptance value.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${duration} - Duration of traffic run [s]. Type: integer
+| | ... | - ${rate} - Rate for sending packets. Type: string
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Traffic should pass with partial loss \| 10 \| 4.0mpps \| 64 \
+| | ... | \| 3-node-IPv4 \| 0.5 \| percentage
+| | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
+| | ...         | ${loss_acceptance} | ${loss_acceptance_type}
+| | ...         | ${fail_on_loss}=${True}
+| | Clear and show runtime counters with running traffic | ${duration}
+| | ...  | ${rate} | ${framesize} | ${topology_type}
+| | Clear all counters on all DUTs
+| | Send traffic on tg | ${duration} | ${rate} | ${framesize}
+| | ...                | ${topology_type} | warmup_time=0
+| | Show statistics on all DUTs
+| | Run Keyword If | ${fail_on_loss} | Partial traffic loss accepted
+| | ...            | ${loss_acceptance} | ${loss_acceptance_type}
+
 | Clear and show runtime counters with running traffic
 | | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
 | | Send traffic on tg | -1 | ${rate} | ${framesize}