aboutsummaryrefslogtreecommitdiffstats
path: root/resources/libraries/robot/performance/performance_utils.robot
blob: 1935337445f8c4e25b411f8752c9786bd8df01cd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
# Copyright (c) 2018 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:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

*** Settings ***
| Library | Collections
| Library | resources.libraries.python.topology.Topology
| Library | resources.libraries.python.NodePath
| Library | resources.libraries.python.DpdkUtil
| Library | resources.libraries.python.InterfaceUtil
| Library | resources.libraries.python.KubernetesUtils
| Library | resources.libraries.python.VhostUser
| Library | resources.libraries.python.TrafficGenerator
| Library | resources.libraries.python.TrafficGenerator.OptimizedSearch
| Library | resources.libraries.python.TrafficGenerator.TGDropRateSearchImpl
| Library | resources.libraries.python.Trace
| Resource | resources/libraries/robot/shared/default.robot
| Resource | resources/libraries/robot/shared/interfaces.robot
| Resource | resources/libraries/robot/shared/counters.robot
| Resource | resources/libraries/robot/shared/container.robot
| Resource | resources/libraries/robot/shared/memif.robot
| Resource | resources/libraries/robot/l2/l2_bridge_domain.robot
| 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 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
| | ...
| | ... | *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 using linear search and pps
| | [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 | ${perf_trial_duration}
| | 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
| | Linear Search | ${start_rate} | ${topology_type}
| | ${rate_per_stream} | ${lat}= | Verify Search Result
| | ${tmp}= | Create List | 100%NDR | ${lat}
| | ${latency}= | Create List | ${tmp}
| | ${rate_50p}= | Evaluate | int(${rate_per_stream}*0.5)
| | ${lat_50p}= | Measure latency pps | ${duration} | ${rate_50p}
| | ... | ${framesize} | ${topology_type}
| | ${tmp}= | Create List | 50%NDR | ${lat_50p}
| | Append To List | ${latency} | ${tmp}
| | ${rate_10p}= | Evaluate | int(${rate_per_stream}*0.1)
| | ${lat_10p}= | Measure latency pps | ${duration} | ${rate_10p}
| | ... | ${framesize} | ${topology_type}
| | ${tmp}= | Create List | 10%NDR | ${lat_10p}
| | Append To List | ${latency} | ${tmp}
| | Display result of NDR search | ${rate_per_stream} | ${framesize} | 2
| | ... | ${latency}
| | Traffic should pass with no loss | ${duration} | ${rate_per_stream}pps
| | ... | ${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 and type specified by parameter.
| | ...
| | ... | *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
| | ...
| | ... | *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 | ${perf_trial_duration}
| | 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} | ${lat}= | Verify Search Result
| | ${tmp}= | Create List | 100%PDR | ${lat}
| | ${latency}= | Create List | ${tmp}
| | Display result of PDR search | ${rate_per_stream} | ${framesize} | 2
| | ... | ${loss_acceptance} | ${loss_acceptance_type} | ${latency}
| | 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 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
| | ...
| | ... | *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 | ${perf_trial_duration}
| | Set Duration | ${duration}
| | Set Search Rate Boundaries | ${max_rate} | ${min_rate}
| | Set Search Frame Size | ${framesize}
| | Set Search Rate Type pps
| | Set Binary Convergence Threshold | ${threshold}
| | Binary Search | ${binary_min} | ${binary_max} | ${topology_type}
| | ${rate_per_stream} | ${lat}= | Verify Search Result
| | ${tmp}= | Create List | 100%NDR | ${lat}
| | ${latency}= | Create List | ${tmp}
| | ${rate_50p}= | Evaluate | int(${rate_per_stream}*0.5)
| | ${lat_50p}= | Measure latency pps | ${duration} | ${rate_50p}
| | ... | ${framesize} | ${topology_type}
| | ${tmp}= | Create List | 50%NDR | ${lat_50p}
| | Append To List | ${latency} | ${tmp}
| | ${rate_10p}= | Evaluate | int(${rate_per_stream}*0.1)
| | ${lat_10p}= | Measure latency pps | ${duration} | ${rate_10p}
| | ... | ${framesize} | ${topology_type}
| | ${tmp}= | Create List | 10%NDR | ${lat_10p}
| | Append To List | ${latency} | ${tmp}
| | Display result of NDR search | ${rate_per_stream} | ${framesize} | 2
| | ... | ${latency}
| | Traffic should pass with no loss | ${duration} | ${rate_per_stream}pps
| | ... | ${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 and type specified by parameter.
| | ...
| | ... | *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
| | ...
| | ... | *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 | ${perf_trial_duration}
| | 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} | ${lat}= | Verify Search Result
| | ${tmp}= | Create List | 100%PDR | ${lat}
| | ${latency}= | Create List | ${tmp}
| | Display result of PDR search | ${rate_per_stream} | ${framesize} | 2
| | ... | ${loss_acceptance} | ${loss_acceptance_type} | ${latency}
| | 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) 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
| | ...
| | ... | *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 | ${perf_trial_duration}
| | 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 Binary Convergence Threshold | ${threshold}
| | Combined Search | ${start_rate} | ${topology_type}
| | ${rate_per_stream} | ${lat}= | Verify Search Result
| | ${tmp}= | Create List | 100%NDR | ${lat}
| | ${latency}= | Create List | ${tmp}
| | ${rate_50p}= | Evaluate | int(${rate_per_stream}*0.5)
| | ${lat_50p}= | Measure latency pps | ${duration} | ${rate_50p}
| | ... | ${framesize} | ${topology_type}
| | ${tmp}= | Create List | 50%NDR | ${lat_50p}
| | Append To List | ${latency} | ${tmp}
| | ${rate_10p}= | Evaluate | int(${rate_per_stream}*0.1)
| | ${lat_10p}= | Measure latency pps | ${duration} | ${rate_10p}
| | ... | ${framesize} | ${topology_type}
| | ${tmp}= | Create List | 10%NDR | ${lat_10p}
| | Append To List | ${latency} | ${tmp}
| | Display result of NDR search | ${rate_per_stream} | ${framesize} | 2
| | ... | ${latency}
| | Traffic should pass with no loss | ${duration} | ${rate_per_stream}pps
| | ... | ${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 and type specified by parameter.
| | ...
| | ... | *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
| | ...
| | ... | *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 | ${perf_trial_duration}
| | 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} | ${lat}= | Verify Search Result
| | ${tmp}= | Create List | 100%PDR | ${lat}
| | ${latency}= | Create List | ${tmp}
| | Display result of PDR search | ${rate_per_stream} | ${framesize} | 2
| | ... | ${loss_acceptance} | ${loss_acceptance_type} | ${latency}
| | 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 and PDR intervals using optimized search
| | [Documentation]
| | ... | Find boundaries for RFC2544 compatible NDR and PDR values
| | ... | using an optimized search algorithm.
| | ... | 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?
| | ...
| | ... | *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
| | ... | - final_relative_width - Maximal width multiple of upper. Type: float
| | ... | - final_trial_duration - Duration of final trials [s]. Type: float
| | ... | - initial_trial_duration - Duration of initial trials [s]. Type: float
| | ... | - intermediate phases - Number of intermediate phases [1]. Type: int
| | ... | - timeout - Fail if search duration is longer [s]. Type: float
| | ...
| | ... | *Example:*
| | ...
| | ... | \| 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} \|
| | ...
| | [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} | ${timeout}=${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}
| | Check NDRPDR interval validity | ${result.ndr_interval}
| | Perform additional measurements based on NDRPDR result
| | ... | ${result} | ${frame_size} | ${topology_type}

| 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/(10**9)
| | 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}

| Check NDRPDR interval validity
| | [Documentation]
| | ... | Extract loss ratio of lower bound of the interval.
| | ... | Fail if it does not reach the allowed value.
| | ...
| | ... | *Arguments:*
| | ... | - interval - Measured interval. Type: ReceiveRateInterval
| | ... | - packet_loss_ratio - Accepted loss (0.0 for NDR). Type: float
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Check NDRPDR interval validity \| \${result.pdr_interval} \
| | ... | \| \${0.005} \|
| | ...
| | [Arguments] | ${interval} | ${packet_loss_ratio}=${0.0}
| | ...
| | ${lower_bound} = | Set Variable | ${interval.measured_low}
| | ${lower_bound_lf} = | Set Variable | ${lower_bound.loss_fraction}
| | Return From Keyword If | ${lower_bound_lf} <= ${packet_loss_ratio}
| | ${message}= | Catenate | SEPARATOR=${SPACE}
| | ... | Minimal rate loss fraction ${lower_bound_lf}
| | ... | does not reach target ${packet_loss_ratio}.
| | ${message_zero} = | Set Variable | Zero packets forwarded!
| | ${message_other} = | Set Variable | ${lower_bound.loss_count} packets lost.
| | ${message} = | Set Variable If | ${lower_bound_lf} >= 1.0
| | ... | ${message}${\n}${message_zero} | ${message}${\n}${message_other}
| | Fail | ${message}

| Perform additional measurements based on NDRPDR result
| | [Documentation]
| | ... | Perform any additional measurements which are not directly needed
| | ... | for determining NDR nor PDR, but which are needed for gathering
| | ... | additional data for debug purposes.
| | ... | Currently, just "Traffic should pass with no loss" is called.
| | ... | TODO: Move latency measurements from optimized search here.
| | ...
| | ... | *Arguments:*
| | ... | - result - Measured result data per stream [pps]. Type: NdrPdrResult
| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
| | ... | - topology_type - Topology type. Type: string
| | ...
| | ... | *Example:*
| | ... | \| Perform additional measurements based on NDRPDR result \
| | ... | \| \${result} \| ${64} \| 3-node-IPv4 \|
| | ...
| | [Arguments] | ${result} | ${framesize} | ${topology_type}
| | ...
| | ${duration}= | Set Variable | 5.0
| | ${rate_per_stream}= | Evaluate
| | ... | ${result.ndr_interval.measured_low.target_tr} / 2.0
| | Traffic should pass with no loss | ${duration} | ${rate_per_stream}pps
| | ... | ${framesize} | ${topology_type} | fail_on_loss=${False}

| Display result of NDR search
| | [Documentation]
| | ... | Display result of NDR search in packet per seconds (total and per
| | ... | stream) and Gbps 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
| | ...
| | ... | *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
| | ... | - latency - Latency stats. Type: dictionary
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Display result of NDR search \| 4400000 \| 64 \| 2 \
| | ... | \| [100%NDR, [10/10/10, 1/2/3]] \|
| | ...
| | [Arguments] | ${rate_per_stream} | ${framesize} | ${nr_streams} | ${latency}
| | ...
| | ${framesize}= | Get Frame Size | ${framesize}
| | ${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 | ${\n}FINAL_BANDWIDTH: ${bandwidth_total} Gbps (untagged)
| | ... | append=yes
| | Set Test Message | ${\n}LATENCY usec [min/avg/max] | append=yes
| | :FOR | ${lat} | IN | @{latency}
| | | Set Test Message | ${\n}LAT_${lat[0]}: ${lat[1]} | append=yes

| Display result of PDR search
| | [Documentation]
| | ... | Display result of 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
| | ...
| | ... | *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
| | ... | - latency - Latency stats. Type: dictionary
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Display result of PDR search \| 4400000 \| 64 \| 2 \| 0.5 \
| | ... | \| percentage \| [100%NDR, [10/10/10, 1/2/3]] \|
| | ...
| | [Arguments] | ${rate_per_stream} | ${framesize} | ${nr_streams}
| | ... | ${loss_acceptance} | ${loss_acceptance_type} | ${latency}
| | ...
| | ${framesize}= | Get Frame Size | ${framesize}
| | ${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 | ${\n}FINAL_BANDWIDTH: ${bandwidth_total} Gbps (untagged)
| | ... | append=yes
| | Set Test Message | ${\n}LATENCY usec [min/avg/max] | append=yes
| | :FOR | ${lat} | IN | @{latency}
| | | Set Test Message | ${\n}LAT_${lat[0]}: ${lat[1]} | append=yes
| | Set Test Message
| | ... | ${\n}LOSS_ACCEPTANCE: ${loss_acceptance} ${loss_acceptance_type}
| | ... | append=yes

| 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
| | ... | evaluation.
| | ...
| | ... | *Arguments:*
| | ... | - duration - Duration of traffic run [s]. Type: integer
| | ... | - 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
| | ... | - fail_on_loss - If True, the keyword fails if loss occurred.
| | ... | Type: boolean
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Traffic should pass with no loss \| 10 \| 4.0mpps \| 64 \
| | ... | \| 3-node-IPv4 \|
| | ...
| | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
| | ... | ${fail_on_loss}=${True}
| | ...
| | Send traffic at specified rate | ${duration} | ${rate} | ${framesize}
| | ... | ${topology_type}
| | 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 specified as argument.
| | ...
| | ... | *Arguments:*
| | ... | - duration - Duration of traffic run [s]. Type: integer
| | ... | - 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
| | ... | - loss_acceptance - Accepted loss during search. Type: float
| | ... | - loss_acceptance_type - Percentage or frames. Type: string
| | ...
| | ... | *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}
| | ...
| | Send traffic at specified rate | ${duration} | ${rate} | ${framesize}
| | ... | ${topology_type}
| | Run Keyword If | ${fail_on_loss} | Partial traffic loss accepted
| | ... | ${loss_acceptance} | ${loss_acceptance_type}

| Traffic should pass with maximum rate
| | [Documentation]
| | ... | Send traffic at maximum rate.
| | ...
| | ... | *Arguments:*
| | ... | - 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
| | ... | - 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
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Traffic should pass with maximum rate \| 4.0mpps \| 64 \
| | ... | \| 3-node-IPv4 \| ${1} \| ${10.0} | ${False} \|
| | ...
| | [Arguments] | ${rate} | ${framesize} | ${topology_type}
| | ... | ${trial_duration}=${perf_trial_duration} | ${fail_no_traffic}=${True}
| | ... | ${subsamples}=${perf_trial_multiplicity}
| | ...
| | ${results} = | Send traffic at specified rate | ${trial_duration} | ${rate}
| | ... | ${framesize} | ${topology_type} | ${subsamples}
| | Set Test Message | ${\n}Maximum Receive Rate trial results
| | Set Test Message | in packets per second: ${results}
| | ... | append=yes
| | # TODO: Should we also report the percentage relative to transmit rate,
| | # so that people looking at console can decide how close to 100% it is?
| | Run Keyword If | ${fail_no_traffic} | Fail if no traffic forwarded

| Send traffic at specified rate
| | [Documentation]
| | ... | Send traffic at specified rate.
| | ... | Return list of measured receive rates.
| | ...
| | ... | *Arguments:*
| | ... | - trial_duration - Duration of single trial [s]. Type: float
| | ... | - rate - Rate for sending packets. Type: string
| | ... | - framesize - L2 Frame Size [B]. Type: integer/string
| | ... | - topology_type - Topology type. Type: string
| | ... | - subsamples - How many trials in this measurement. Type: int
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Send traffic at specified rate \| ${1.0} \| 4.0mpps \| 64 \
| | ... | \| 3-node-IPv4 \| ${10} \|
| | ...
| | [Arguments] | ${trial_duration} | ${rate} | ${framesize}
| | ... | ${topology_type} | ${subsamples}=${1}
| | ...
| | Clear and show runtime counters with running traffic | ${trial_duration}
| | ... | ${rate} | ${framesize} | ${topology_type}
| | 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}
| | ${results} = | Create List
| | :FOR | ${i} | IN RANGE | ${subsamples}
| | | Send traffic on tg | ${trial_duration} | ${rate} | ${framesize}
| | | ... | ${topology_type} | warmup_time=0
| | | ${rx} = | Get Received
| | | ${rr} = | Evaluate | ${rx} / ${trial_duration}
| | | Append To List | ${results} | ${rr}
| | Run Keyword If | ${dut_stats}==${True} | Show statistics on all DUTs
| | ... | ${nodes}
| | Run Keyword If | ${dut_stats}==${True} and ${pkt_trace}==${True}
| | ... | Show Packet Trace On All Duts | ${nodes} | maximum=${100}
| | Return From Keyword | ${results}

| Clear and show runtime counters with running traffic
| | [Documentation]
| | ... | Start traffic at specified rate then clear runtime counters on all
| | ... | DUTs. Wait for specified amount of time and capture runtime counters
| | ... | on all DUTs. Finally stop traffic
| | ...
| | ... | *Arguments:*
| | ... | - duration - Duration of traffic run [s]. Type: integer
| | ... | - 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
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Traffic should pass with partial loss \| 10 \| 4.0mpps \| 64 \
| | ... | \| 3-node-IPv4 \| 0.5 \| percentage \|
| | ...
| | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
| | ...
| | Send traffic on tg | -1 | ${rate} | ${framesize} | ${topology_type}
| | ... | warmup_time=0 | async_call=${True} | latency=${False}
| | Run Keyword If | ${dut_stats}==${True}
| | ... | Clear runtime counters on all DUTs | ${nodes}
| | Sleep | ${duration}
| | Run Keyword If | ${dut_stats}==${True}
| | ... | Show runtime counters on all DUTs | ${nodes}
| | Stop traffic on tg