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2026-09-20 - 09:13

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #8

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackbslot8s (updated Sun Sep 20, 2026 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8240442121107,9sleep50-21swapper/519:06:005
8240832118103,10sleep60-21swapper/619:06:336
8240512118104,9sleep30-21swapper/319:06:063
8242872117103,9sleep40-21swapper/419:09:274
8241632117103,9sleep10-21swapper/119:07:401
8240212115101,10sleep00-21swapper/019:05:400
824088211095,10sleep20-21swapper/219:06:372
824225210995,9sleep70-21swapper/719:08:357
8245569910599,6cyclictest31-21ksoftirqd/223:31:112
8245679910499,2cyclictest553-21snmpd00:06:345
8245569910498,5cyclictest31-21ksoftirqd/223:27:322
8245569910396,4cyclictest31-21ksoftirqd/221:31:292
8245479910399,4cyclictest553-21snmpd22:01:200
824567991020,101cyclictest0-21swapper/521:30:545
82456599102100,2cyclictest553-21snmpd22:35:244
8245569910299,2cyclictest31-21ksoftirqd/222:15:172
8245569910296,5cyclictest31-21ksoftirqd/223:56:572
8245479910299,3cyclictest553-21snmpd22:24:570
824575991010,100cyclictest0-21swapper/722:51:177
8245719910199,1cyclictest553-21snmpd00:01:186
8245679910199,1cyclictest553-21snmpd00:25:435
82456799101100,1cyclictest827672-21cat19:15:005
82456799101100,1cyclictest553-21snmpd22:59:345
824567991010,101cyclictest0-21swapper/519:45:265
8245659910199,2cyclictest553-21snmpd22:07:334
82456599101100,1cyclictest553-21snmpd21:35:094
824565991010,101cyclictest0-21swapper/400:27:054
824565991010,100cyclictest0-21swapper/400:17:004
8245609910199,2cyclictest553-21snmpd21:57:333
8245609910199,2cyclictest553-21snmpd20:10:153
8245609910199,2cyclictest553-21snmpd00:04:343
8245569910199,2cyclictest553-21snmpd21:15:432
8245569910198,2cyclictest553-21snmpd23:36:392
8245519910199,1cyclictest605-21lldpd21:17:171
82455199101100,1cyclictest0-21swapper/121:58:111
824551991010,100cyclictest0-21swapper/119:47:071
8245479910199,2cyclictest553-21snmpd23:50:550
8245479910199,2cyclictest553-21snmpd23:41:200
8245479910199,2cyclictest553-21snmpd23:11:040
8245479910199,2cyclictest553-21snmpd22:50:520
8245479910199,2cyclictest553-21snmpd20:33:210
824547991010,101cyclictest0-21swapper/022:07:250
824547991010,100cyclictest0-21swapper/019:29:460
824547991010,0cyclictest0-21swapper/020:59:170
8245759910096,4cyclictest0-21swapper/723:01:137
824575991000,99cyclictest0-21swapper/723:45:367
824575991000,99cyclictest0-21swapper/721:28:507
824575991000,99cyclictest0-21swapper/720:30:097
824575991000,99cyclictest0-21swapper/720:27:517
824575991000,99cyclictest0-21swapper/720:22:007
824575991000,99cyclictest0-21swapper/700:00:487
824575991000,100cyclictest0-21swapper/723:14:207
824575991000,100cyclictest0-21swapper/723:05:557
824575991000,100cyclictest0-21swapper/700:38:147
824575991000,100cyclictest0-21swapper/700:13:137
824575991000,100cyclictest0-21swapper/700:07:457
8245719910099,1cyclictest553-21snmpd23:57:006
8245719910099,1cyclictest553-21snmpd20:53:086
8245719910099,1cyclictest553-21snmpd19:42:166
82457199100100,0cyclictest553-21snmpd19:39:046
824571991000,99cyclictest0-21swapper/621:43:546
824571991000,99cyclictest0-21swapper/620:47:166
824571991000,99cyclictest0-21swapper/620:25:126
8245679910099,1cyclictest553-21snmpd23:40:275
8245679910099,1cyclictest553-21snmpd20:35:045
8245679910099,1cyclictest553-21snmpd20:35:035
8245679910098,2cyclictest553-21snmpd23:32:085
8245679910098,2cyclictest553-21snmpd20:11:005
824567991000,99cyclictest0-21swapper/519:41:585
824567991000,100cyclictest0-21swapper/522:16:065
8245659910099,1cyclictest553-21snmpd23:20:474
8245659910099,1cyclictest553-21snmpd21:41:474
8245659910099,1cyclictest553-21snmpd20:19:004
8245659910099,1cyclictest553-21snmpd00:39:104
8245659910098,2cyclictest553-21snmpd19:35:464
8245659910097,3cyclictest553-21snmpd19:19:564
824565991000,100cyclictest0-21swapper/422:14:004
8245609910099,1cyclictest553-21snmpd20:31:433
8245609910099,1cyclictest553-21snmpd20:02:533
8245569910099,1cyclictest553-21snmpd22:38:002
8245569910099,1cyclictest553-21snmpd21:51:452
8245569910099,1cyclictest553-21snmpd21:40:562
8245569910099,1cyclictest553-21snmpd19:37:472
8245569910098,1cyclictest553-21snmpd20:15:502
8245569910097,0cyclictest141rcu_preempt23:08:412
82455699100100,0cyclictest31-21ksoftirqd/222:50:142
824556991000,99cyclictest0-21swapper/223:19:002
824556991000,99cyclictest0-21swapper/222:45:562
824556991000,99cyclictest0-21swapper/220:06:242
824556991000,99cyclictest0-21swapper/200:10:362
824556991000,100cyclictest0-21swapper/222:58:342
824556991000,100cyclictest0-21swapper/222:21:152
824556991000,100cyclictest0-21swapper/220:50:582
824556991000,100cyclictest0-21swapper/200:21:042
824556991000,100cyclictest0-21swapper/200:04:102
8245519910099,1cyclictest553-21snmpd23:47:291
8245519910099,1cyclictest553-21snmpd20:25:551
824551991000,99cyclictest0-21swapper/122:20:331
824551991000,99cyclictest0-21swapper/121:39:021
824551991000,99cyclictest0-21swapper/120:55:051
824551991000,100cyclictest0-21swapper/122:58:431
824551991000,100cyclictest0-21swapper/120:03:541
824551991000,100cyclictest0-21swapper/100:05:241
8245479910099,1cyclictest553-21snmpd21:40:170
8245479910098,2cyclictest553-21snmpd00:16:100
8245479910097,3cyclictest553-21snmpd23:18:440
824547991000,100cyclictest0-21swapper/020:03:480
824575999998,1cyclictest0-21swapper/722:03:557
82457599990,99cyclictest0-21swapper/723:43:307
82457599990,99cyclictest0-21swapper/723:30:477
82457599990,99cyclictest0-21swapper/722:41:407
82457599990,99cyclictest0-21swapper/720:55:227
82457599990,98cyclictest0-21swapper/721:52:597
82457599990,98cyclictest0-21swapper/721:22:347
82457599990,98cyclictest0-21swapper/719:32:207
82457599990,0cyclictest0-21swapper/723:35:237
82457599990,0cyclictest0-21swapper/700:16:587
824571999999,0cyclictest553-21snmpd20:21:546
824571999999,0cyclictest553-21snmpd19:47:346
824571999999,0cyclictest0-21swapper/622:33:466
824571999998,1cyclictest905059-21cat21:25:156
824571999998,1cyclictest553-21snmpd23:04:016
824571999998,1cyclictest553-21snmpd21:30:086
824571999998,1cyclictest553-21snmpd20:13:366
824571999998,1cyclictest1039498-21cat23:25:156
824571999997,2cyclictest0-21swapper/623:09:076
824571999997,1cyclictest605-21lldpd00:17:176
82457199990,99cyclictest0-21swapper/623:11:206
82457199990,99cyclictest0-21swapper/622:36:426
82457199990,98cyclictest0-21swapper/621:47:536
82457199990,0cyclictest0-21swapper/620:00:476
824567999999,0cyclictest553-21snmpd22:40:465
824567999999,0cyclictest553-21snmpd21:54:355
824567999998,1cyclictest854375-21cat20:05:165
824567999998,1cyclictest553-21snmpd23:51:155
824567999998,1cyclictest553-21snmpd23:45:595
824567999998,1cyclictest553-21snmpd21:57:005
824567999998,1cyclictest553-21snmpd21:23:555
824567999998,1cyclictest553-21snmpd19:36:075
824567999998,1cyclictest553-21snmpd00:20:065
824567999997,2cyclictest553-21snmpd21:14:205
82456799990,99cyclictest0-21swapper/523:58:335
82456799990,99cyclictest0-21swapper/522:28:465
824565999999,0cyclictest553-21snmpd23:52:424
824565999999,0cyclictest553-21snmpd19:25:314
824565999999,0cyclictest553-21snmpd00:10:274
824565999998,1cyclictest553-21snmpd23:17:394
824565999998,1cyclictest553-21snmpd21:13:444
824565999998,1cyclictest553-21snmpd21:02:014
824565999998,1cyclictest553-21snmpd20:57:314
824565999998,1cyclictest553-21snmpd20:35:514
824565999998,1cyclictest553-21snmpd20:35:514
824565999998,1cyclictest553-21snmpd19:34:344
82456599990,99cyclictest0-21swapper/423:34:594
82456599990,99cyclictest0-21swapper/423:11:484
82456599990,99cyclictest0-21swapper/422:22:464
82456599990,99cyclictest0-21swapper/421:24:554
82456599990,98cyclictest0-21swapper/422:58:014
82456599990,98cyclictest0-21swapper/422:01:054
82456599990,98cyclictest0-21swapper/419:12:094
82456599990,0cyclictest0-21swapper/400:23:554
82456599990,0cyclictest0-21swapper/400:05:404
824560999999,0cyclictest553-21snmpd23:45:323
824560999999,0cyclictest553-21snmpd23:10:503
824560999999,0cyclictest553-21snmpd19:10:093
824560999998,1cyclictest553-21snmpd23:30:273
824560999998,1cyclictest553-21snmpd23:16:263
824560999998,1cyclictest553-21snmpd22:46:533
824560999998,1cyclictest553-21snmpd22:11:423
824560999998,1cyclictest553-21snmpd20:36:063
824560999998,1cyclictest553-21snmpd20:36:063
824560999998,1cyclictest553-21snmpd00:15:543
824560999997,2cyclictest553-21snmpd22:03:483
824556999999,0cyclictest553-21snmpd21:26:512
824556999998,1cyclictest553-21snmpd22:03:452
824556999998,1cyclictest553-21snmpd20:47:062
824556999997,0cyclictest31-21ksoftirqd/200:08:242
82455699990,99cyclictest0-21swapper/222:34:342
82455699990,99cyclictest0-21swapper/221:11:182
82455699990,99cyclictest0-21swapper/221:06:592
82455699990,99cyclictest0-21swapper/220:10:142
82455699990,99cyclictest0-21swapper/219:49:592
82455699990,98cyclictest0-21swapper/221:59:142
82455699990,98cyclictest0-21swapper/221:47:122
82455699990,98cyclictest0-21swapper/220:21:392
82455699990,0cyclictest0-21swapper/223:54:482
82455699990,0cyclictest0-21swapper/221:20:172
82455699990,0cyclictest0-21swapper/219:52:202
824551999999,0cyclictest553-21snmpd22:15:431
824551999999,0cyclictest553-21snmpd19:57:201
824551999998,1cyclictest553-21snmpd23:16:351
824551999998,1cyclictest553-21snmpd21:31:591
824551999998,1cyclictest553-21snmpd00:23:081
824551999997,2cyclictest553-21snmpd00:37:461
82455199990,99cyclictest0-21swapper/120:52:071
82455199990,98cyclictest0-21swapper/100:04:521
82455199990,0cyclictest886547-21diskmemload21:23:471
82455199990,0cyclictest0-21swapper/123:31:241
82455199990,0cyclictest0-21swapper/121:14:101
82455199990,0cyclictest0-21swapper/100:26:431
824547999999,0cyclictest553-21snmpd19:51:110
824547999999,0cyclictest553-21snmpd00:26:250
824547999998,1cyclictest553-21snmpd21:25:420
824547999998,1cyclictest553-21snmpd19:23:310
824547999997,2cyclictest553-21snmpd00:31:160
824547999997,1cyclictest553-21snmpd20:20:070
824547999996,3cyclictest856876-21cat20:10:140
824547999996,3cyclictest553-21snmpd22:15:070
824547999996,3cyclictest553-21snmpd19:44:100
824547999996,2cyclictest605-21lldpd21:07:170
82454799990,99cyclictest0-21swapper/021:10:280
82454799990,99cyclictest0-21swapper/020:44:400
82454799990,99cyclictest0-21swapper/020:44:390
82454799990,99cyclictest0-21swapper/020:19:150
82454799990,99cyclictest0-21swapper/019:19:070
82454799990,99cyclictest0-21swapper/000:04:570
82454799990,0cyclictest0-21swapper/022:46:130
82454799990,0cyclictest0-21swapper/021:33:560
824575999898,0cyclictest0-21swapper/722:25:047
82457599980,98cyclictest0-21swapper/722:46:227
82457599980,97cyclictest0-21swapper/720:54:507
82457599980,97cyclictest0-21swapper/719:14:067
824571999898,0cyclictest553-21snmpd23:32:326
824571999898,0cyclictest553-21snmpd22:53:596
824571999898,0cyclictest553-21snmpd00:20:126
824571999897,1cyclictest801783-21kworker/6:019:55:246
824571999897,1cyclictest553-21snmpd20:07:596
82457199980,97cyclictest0-21swapper/621:08:526
824567999898,0cyclictest553-21snmpd23:39:335
824567999898,0cyclictest553-21snmpd21:00:285
824567999897,1cyclictest553-21snmpd20:04:415
824567999897,1cyclictest553-21snmpd19:13:575
824567999896,2cyclictest553-21snmpd00:39:495
82456799980,98cyclictest0-21swapper/519:57:085
824565999898,0cyclictest553-21snmpd20:04:444
824565999897,1cyclictest849265-21cat19:55:164
824565999897,1cyclictest553-21snmpd20:44:254
824565999897,1cyclictest553-21snmpd20:44:244
824565999896,2cyclictest553-21snmpd00:30:564
82456599980,98cyclictest0-21swapper/423:48:144
82456599980,98cyclictest0-21swapper/421:17:224
82456599980,98cyclictest0-21swapper/400:02:224
824560999898,0cyclictest553-21snmpd22:09:033
824560999898,0cyclictest553-21snmpd20:40:553
824560999898,0cyclictest553-21snmpd20:40:543
824560999898,0cyclictest553-21snmpd00:39:523
824560999897,1cyclictest553-21snmpd23:35:483
824560999897,1cyclictest553-21snmpd23:06:233
824560999897,1cyclictest553-21snmpd21:52:543
824560999897,1cyclictest553-21snmpd19:33:403
824556999898,0cyclictest31-21ksoftirqd/223:20:122
824556999898,0cyclictest0-21swapper/223:10:152
824556999897,1cyclictest553-21snmpd23:40:022
824556999897,1cyclictest553-21snmpd00:37:402
824556999897,1cyclictest553-21snmpd00:34:042
824556999897,1cyclictest31-21ksoftirqd/222:44:352
82455699980,97cyclictest0-21swapper/200:16:022
824551999898,0cyclictest553-21snmpd20:24:281
824551999898,0cyclictest553-21snmpd19:40:111
824551999898,0cyclictest553-21snmpd19:22:491
824551999898,0cyclictest553-21snmpd00:11:181
824551999897,1cyclictest553-21snmpd23:26:571
824551999897,1cyclictest553-21snmpd21:51:001
824551999897,1cyclictest0-21swapper/122:43:441
824551999896,2cyclictest553-21snmpd23:58:161
82455199980,98cyclictest0-21swapper/123:14:561
824547999897,1cyclictest844253-21cat19:45:170
824547999897,1cyclictest553-21snmpd19:30:350
82454799980,98cyclictest0-21swapper/023:47:200
82454799980,98cyclictest0-21swapper/022:39:170
82454799980,98cyclictest0-21swapper/020:08:560
82457599970,97cyclictest0-21swapper/720:37:017
82457599970,97cyclictest0-21swapper/720:37:017
824571999797,0cyclictest553-21snmpd23:47:276
824571999797,0cyclictest553-21snmpd21:38:126
824571999796,1cyclictest1056121-21cat23:40:146
824571999795,2cyclictest553-21snmpd21:20:316
824571999795,1cyclictest0-21swapper/623:54:456
82457199970,97cyclictest0-21swapper/622:22:306
82457199970,97cyclictest0-21swapper/622:18:336
82457199970,97cyclictest0-21swapper/620:17:246
82457199970,96cyclictest0-21swapper/621:16:536
82457199970,96cyclictest0-21swapper/600:11:436
824567999797,0cyclictest553-21snmpd21:29:205
824567999796,1cyclictest553-21snmpd21:42:295
824567999795,2cyclictest553-21snmpd19:26:445
824567999795,2cyclictest0-21swapper/520:47:285
824565999797,0cyclictest553-21snmpd20:27:154
824565999797,0cyclictest553-21snmpd20:11:484
824565999796,1cyclictest553-21snmpd20:05:124
82456599970,97cyclictest0-21swapper/422:51:314
82456599970,97cyclictest0-21swapper/421:54:144
824560999796,1cyclictest553-21snmpd21:28:033
824560999795,2cyclictest553-21snmpd22:25:483
824556999797,0cyclictest825994-21ntp_states19:10:172
824556999794,2cyclictest553-21snmpd00:29:322
82455699970,97cyclictest0-21swapper/220:55:002
824551999796,1cyclictest885227-21cat21:05:151
824551999795,2cyclictest553-21snmpd22:27:331
824551999795,2cyclictest553-21snmpd20:45:511
82455199970,97cyclictest0-21swapper/123:20:501
82455199970,97cyclictest0-21swapper/100:30:151
824547999797,0cyclictest553-21snmpd21:17:490
824547999795,2cyclictest553-21snmpd23:55:190
824547999795,2cyclictest553-21snmpd23:08:290
824547999795,2cyclictest553-21snmpd22:55:250
824547999794,3cyclictest553-21snmpd23:02:200
824547999793,2cyclictest605-21lldpd21:57:170
824575999695,1cyclictest0-21swapper/723:29:177
824575999695,1cyclictest0-21swapper/723:24:007
824575999694,1cyclictest0-21swapper/722:05:107
82457599960,96cyclictest0-21swapper/722:37:067
82457599960,96cyclictest0-21swapper/720:41:367
82457599960,96cyclictest0-21swapper/720:41:367
824571999696,0cyclictest553-21snmpd19:24:176
824571999695,1cyclictest880182-21cat20:55:156
824571999695,1cyclictest553-21snmpd19:26:146
824571999695,1cyclictest553-21snmpd00:36:506
824567999696,0cyclictest885212-21cat21:05:155
824567999696,0cyclictest0-21swapper/520:43:345
824567999696,0cyclictest0-21swapper/520:43:335
824567999695,1cyclictest553-21snmpd23:29:235
824567999695,1cyclictest0-21swapper/521:18:345
824567999694,1cyclictest0-21swapper/500:02:395
824567999693,3cyclictest553-21snmpd23:15:155
824565999696,0cyclictest553-21snmpd23:06:044
824565999696,0cyclictest0-21swapper/419:54:024
824565999695,1cyclictest861924-21cat20:20:174
824560999696,0cyclictest553-21snmpd21:21:193
824560999696,0cyclictest553-21snmpd20:29:583
824560999695,1cyclictest553-21snmpd22:51:043
824560999695,1cyclictest553-21snmpd19:15:403
824560999694,2cyclictest553-21snmpd22:32:333
824560999694,2cyclictest553-21snmpd20:09:033
824556999696,0cyclictest553-21snmpd23:01:282
824556999696,0cyclictest31-21ksoftirqd/221:37:182
824556999696,0cyclictest0-21swapper/222:08:022
824556999695,1cyclictest0-21swapper/222:10:172
824556999695,1cyclictest0-21swapper/219:42:022
82455699960,96cyclictest0-21swapper/223:45:022
824551999696,0cyclictest553-21snmpd00:17:541
824551999695,1cyclictest553-21snmpd23:36:141
824551999695,1cyclictest553-21snmpd19:31:071
82455199960,96cyclictest0-21swapper/123:06:291
824547999695,1cyclictest553-21snmpd21:51:090
824547999695,1cyclictest553-21snmpd21:36:050
824547999695,1cyclictest553-21snmpd00:24:080
824547999695,1cyclictest0-21swapper/022:30:030
824547999694,2cyclictest553-21snmpd19:11:130
82454799960,96cyclictest0-21swapper/020:36:010
82454799960,96cyclictest0-21swapper/020:36:000
82454799960,96cyclictest0-21swapper/019:55:170
824575999595,0cyclictest0-21swapper/721:41:247
824575999595,0cyclictest0-21swapper/721:11:507
824575999595,0cyclictest0-21swapper/720:02:387
824575999595,0cyclictest0-21swapper/719:15:337
824571999595,0cyclictest553-21snmpd22:11:036
824571999594,1cyclictest0-21swapper/623:39:146
824571999594,1cyclictest0-21swapper/623:20:126
824567999595,0cyclictest553-21snmpd23:22:475
824567999595,0cyclictest0-21swapper/520:25:365
824567999595,0cyclictest0-21swapper/500:11:315
824567999594,1cyclictest920229-21ssh21:39:395
824567999594,1cyclictest0-21swapper/523:03:495
824560999595,0cyclictest553-21snmpd23:25:323
824560999594,1cyclictest553-21snmpd21:17:043
824560999594,1cyclictest553-21snmpd00:07:133
824556999595,0cyclictest848501-21apt-get19:55:122
824556999595,0cyclictest553-21snmpd20:00:152
824556999595,0cyclictest0-21swapper/222:25:582
824556999594,1cyclictest0-21swapper/221:04:502
824556999594,1cyclictest0-21swapper/219:22:162
824551999595,0cyclictest0-21swapper/122:33:421
824551999595,0cyclictest0-21swapper/122:13:251
824551999595,0cyclictest0-21swapper/121:01:171
824551999594,1cyclictest0-21swapper/122:53:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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