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2026-07-13 - 23:06

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

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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  Intel
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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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack1slot6s.osadl.org (updated Mon Jul 13, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24306991054,93cyclictest21508-21expr10:07:250
243119910118,64cyclictest20283-21switchtime10:52:343
2431199994,56cyclictest0-21swapper/308:27:273
2430699993,89cyclictest0-21swapper/010:46:320
2431099963,58cyclictest12485-21aten_r1power_en09:07:182
2430699964,84cyclictest0-21swapper/008:37:430
2430699954,84cyclictest0-21swapper/010:32:260
2430699954,84cyclictest0-21swapper/010:32:260
2430699954,83cyclictest0-21swapper/009:07:070
2430699943,84cyclictest0-21swapper/010:27:250
2430699943,84cyclictest0-21swapper/009:47:260
2430699934,82cyclictest30765-21munin-node10:22:160
2430699934,14cyclictest0-21swapper/011:52:300
24306999311,73cyclictest0-21swapper/010:57:180
2431199924,81cyclictest0-21swapper/311:42:133
2431199924,71cyclictest0-21swapper/311:51:383
2430699924,69cyclictest0-21swapper/011:16:170
2430699924,69cyclictest0-21swapper/011:16:170
2430699924,14cyclictest0-21swapper/009:32:200
2430699923,82cyclictest18928-21grep08:27:420
2430699914,67cyclictest0-21swapper/009:52:190
2430699913,12cyclictest0-21swapper/011:25:150
2431199904,78cyclictest0-21swapper/309:47:333
2430699904,14cyclictest0-21swapper/007:47:410
2430699903,9cyclictest9795-21grep07:02:330
2430699903,80cyclictest23952-21open_inodes09:22:370
2430699903,80cyclictest0-21swapper/011:32:410
2430699903,80cyclictest0-21swapper/011:07:030
2430699903,79cyclictest2930-21munin-node07:57:200
2430699903,79cyclictest11100-21ssh11:27:250
2430699903,12cyclictest0-21swapper/006:57:370
2431199894,77cyclictest0-21swapper/311:07:253
2431199894,77cyclictest0-21swapper/309:40:183
2431199894,77cyclictest0-21swapper/308:57:203
24311998920,63cyclictest10401-21ntp_offset09:02:353
2430699894,9cyclictest1227-21runrttasks10:18:290
2430699894,14cyclictest0-21swapper/011:37:260
2430699894,12cyclictest0-21swapper/008:47:200
2430699894,10cyclictest0-21swapper/009:07:250
2430699893,9cyclictest6380-21ssh11:21:570
2430699893,12cyclictest0-21swapper/008:32:240
2431199885,76cyclictest0-21swapper/310:32:193
2431199885,76cyclictest0-21swapper/310:32:193
2431199885,74cyclictest0-21swapper/309:22:203
2431199884,61cyclictest0-21swapper/310:43:313
2431199884,53cyclictest0-21swapper/309:57:053
2430699884,15cyclictest0-21swapper/009:01:130
2430699884,14cyclictest0-21swapper/010:53:550
2430699884,13cyclictest0-21swapper/010:47:340
2430699884,11cyclictest0-21swapper/008:07:350
24306998813,9cyclictest1827-21head06:47:260
219499880,6rtkit-daemon2193-21rtkit-daemon09:11:203
219499880,5rtkit-daemon2193-21rtkit-daemon10:40:462
2431199875,74cyclictest0-21swapper/309:12:403
2431199875,74cyclictest0-21swapper/309:12:403
2431199874,76cyclictest0-21swapper/309:37:063
2431199874,75cyclictest0-21swapper/310:16:303
2431199873,8cyclictest1398-21timerandwakeup11:12:363
2431199873,8cyclictest1398-21timerandwakeup11:12:363
2431199873,77cyclictest0-21swapper/310:39:103
2430699874,75cyclictest0-21swapper/009:27:350
2430699874,64cyclictest0-21swapper/011:42:310
2430699874,60cyclictest0-21swapper/009:12:330
2430699874,60cyclictest0-21swapper/009:12:330
2430699874,14cyclictest0-21swapper/009:37:270
2430699874,13cyclictest0-21swapper/011:47:210
2430699874,13cyclictest0-21swapper/011:07:240
2430699874,12cyclictest0-21swapper/008:44:350
2431199864,74cyclictest0-21swapper/310:05:303
2431199864,74cyclictest0-21swapper/307:07:253
2431199864,74cyclictest0-21swapper/307:07:253
2431199864,54cyclictest0-21swapper/308:47:203
24311998618,44cyclictest21267-21ssh10:07:233
24311998615,48cyclictest0-21swapper/311:23:573
2430699864,69cyclictest0-21swapper/010:39:310
2430699864,61cyclictest0-21swapper/009:43:170
2430699864,36cyclictest0-21swapper/010:16:130
2430699863,76cyclictest0-21swapper/007:17:180
2430699863,13cyclictest0-21swapper/009:20:270
2430699863,11cyclictest0-21swapper/009:57:330
2431199854,74cyclictest0-21swapper/311:06:533
2431199854,73cyclictest0-21swapper/311:02:023
2431199854,66cyclictest0-21swapper/307:57:103
2431199854,59cyclictest0-21swapper/309:19:203
2431199853,75cyclictest0-21swapper/311:37:323
24311998521,42cyclictest0-21swapper/310:20:493
2430699854,14cyclictest0-21swapper/007:31:510
2430699854,14cyclictest0-21swapper/006:37:280
2430699854,14cyclictest0-21swapper/006:32:300
2430699854,13cyclictest0-21swapper/007:22:340
2430699853,14cyclictest0-21swapper/010:05:250
2431199849,53cyclictest0-21swapper/310:26:413
2431199844,72cyclictest7478-21turbostat.cron08:07:103
2431199844,72cyclictest0-21swapper/311:36:083
2430699844,62cyclictest0-21swapper/008:55:060
2430699844,58cyclictest0-21swapper/007:32:250
2430699844,14cyclictest0-21swapper/006:27:350
2430699844,14cyclictest0-21swapper/006:27:350
2430699844,12cyclictest0-21swapper/008:12:210
2430699843,74cyclictest0-21swapper/007:37:230
2431199834,71cyclictest0-21swapper/309:27:193
2431199834,70cyclictest0-21swapper/308:52:213
2431199834,59cyclictest0-21swapper/306:29:493
2431199834,59cyclictest0-21swapper/306:29:493
2430699833,10cyclictest11504-21cpu07:07:260
2430699833,10cyclictest11504-21cpu07:07:260
141562830,4sleep2281ktimersoftd/209:57:172
2431199824,71cyclictest0-21swapper/309:46:053
2431199824,70cyclictest0-21swapper/310:47:403
2431199824,69cyclictest0-21swapper/308:39:583
2431199823,56cyclictest0-21swapper/310:00:043
24311998213,47cyclictest0-21swapper/311:27:303
24311998212,64cyclictest17047-21diskmemload10:31:203
2430699824,71cyclictest0-21swapper/007:52:290
2430699823,60cyclictest14883-21munin-node08:22:200
219499820,4rtkit-daemon2193-21rtkit-daemon06:32:493
2431199814,69cyclictest0-21swapper/311:57:013
2431199814,10cyclictest2541-21fschecks_time06:47:323
2431199813,72cyclictest0-21swapper/308:46:293
2431199813,59cyclictest22101-21awk08:32:413
2430699814,9cyclictest32043-21tr06:42:290
2431199804,68cyclictest0-21swapper/307:02:253
2431199803,8cyclictest12249-21sa108:17:093
2431199803,10cyclictest15867-21crond07:17:123
24311998011,44cyclictest107550irq/46-eth006:37:293
2430699804,14cyclictest0-21swapper/007:42:320
2431199794,68cyclictest0-21swapper/307:27:283
2430699793,9cyclictest1227-21runrttasks06:56:120
2431199784,60cyclictest0-21swapper/311:19:233
2431199783,67cyclictest5179-21interrupts06:52:343
2430699786,63cyclictest24292-21munin-run06:27:140
2430699784,66cyclictest0-21swapper/008:19:490
2431199773,57cyclictest24282-21latency_hist06:27:143
2430699774,58cyclictest0-21swapper/007:15:190
2431199764,66cyclictest0-21swapper/307:42:333
2431199764,64cyclictest0-21swapper/306:42:333
2431199763,11cyclictest0-21swapper/307:22:233
2431199754,54cyclictest0-21swapper/307:37:323
2431199744,8cyclictest8717-21munin-run07:02:123
2431199744,62cyclictest0-21swapper/308:17:243
190852740,4sleep212-21rcu_preempt07:22:292
2431199733,63cyclictest0-21swapper/307:47:373
2431199733,62cyclictest0-21swapper/307:19:473
2431199724,61cyclictest0-21swapper/307:57:273
2430699724,13cyclictest0-21swapper/008:02:340
2431199713,11cyclictest0-21swapper/308:11:573
2431199704,59cyclictest0-21swapper/308:22:233
24311997011,53cyclictest24147-21gltestperf07:32:343
2430999695,16cyclictest0-21swapper/110:32:201
2430999695,16cyclictest0-21swapper/110:32:201
24310996823,26cyclictest0-21swapper/210:52:492
2430999674,54cyclictest0-21swapper/110:07:271
2430999674,54cyclictest0-21swapper/108:52:321
219499670,4rtkit-daemon18110-21ntp_offset11:37:292
2431099664,53cyclictest0-21swapper/208:32:472
219499660,5rtkit-daemon2193-21rtkit-daemon11:22:522
219499660,4rtkit-daemon2193-21rtkit-daemon06:34:342
2430999654,53cyclictest0-21swapper/108:32:441
219499650,6rtkit-daemon2193-21rtkit-daemon09:23:202
219499650,4rtkit-daemon2193-21rtkit-daemon07:41:012
24310996428,29cyclictest8481-21ntpq09:47:332
2430999643,54cyclictest0-21swapper/109:42:331
219499640,5rtkit-daemon2193-21rtkit-daemon11:32:142
219499640,5rtkit-daemon2193-21rtkit-daemon11:09:082
219499640,4rtkit-daemon2193-21rtkit-daemon10:07:032
219499640,4rtkit-daemon2193-21rtkit-daemon09:35:342
2431099634,51cyclictest0-21swapper/210:22:042
2430999633,54cyclictest0-21swapper/111:17:321
219499630,6rtkit-daemon2193-21rtkit-daemon09:19:502
219499630,5rtkit-daemon2193-21rtkit-daemon11:31:522
219499630,10rtkit-daemon0-21swapper/210:15:102
2431099625,39cyclictest0-21swapper/207:12:402
2430999624,51cyclictest0-21swapper/110:27:041
2430999624,50cyclictest0-21swapper/108:29:141
2430999624,39cyclictest0-21swapper/106:37:421
2430999623,8cyclictest6112-21cstates08:57:231
2430999623,50cyclictest0-21swapper/111:27:131
219499620,8rtkit-daemon0-21swapper/211:18:452
219499620,6rtkit-daemon2193-21rtkit-daemon09:14:502
219499620,6rtkit-daemon2193-21rtkit-daemon09:14:502
219499620,4rtkit-daemon2193-21rtkit-daemon10:48:542
2431099612,54cyclictest0-21swapper/210:26:262
24310996117,28cyclictest0-21swapper/209:44:142
2430999615,48cyclictest27043-21aten_r1power_vo11:52:141
2430999614,49cyclictest0-21swapper/111:37:041
2430999614,49cyclictest0-21swapper/107:27:401
2430999613,51cyclictest0-21swapper/111:17:021
2430999613,51cyclictest0-21swapper/111:17:021
219499610,7rtkit-daemon0-21swapper/211:13:232
219499610,7rtkit-daemon0-21swapper/211:13:232
219499610,4rtkit-daemon2193-21rtkit-daemon08:50:512
219499610,2rtkit-daemon0-21swapper/210:32:472
219499610,2rtkit-daemon0-21swapper/210:32:472
219499610,10rtkit-daemon0-21swapper/210:57:382
24310996041,11cyclictest11270-21sh09:52:232
219499600,4rtkit-daemon0-21swapper/208:41:592
209852603,9sleep120988-21ssh10:54:051
288402593,46sleep10-21swapper/111:07:161
2431099593,50cyclictest0-21swapper/210:09:242
2431099593,48cyclictest0-21swapper/208:57:252
2431099592,51cyclictest0-21swapper/211:05:392
219499590,4rtkit-daemon2193-21rtkit-daemon09:40:492
219499590,2rtkit-daemon0-21swapper/209:06:352
2431099584,46cyclictest0-21swapper/208:27:262
2431099584,44cyclictest0-21swapper/209:27:402
2430999587,13cyclictest0-21swapper/110:29:101
2430999584,47cyclictest0-21swapper/111:47:211
2430999584,47cyclictest0-21swapper/111:22:371
24309995810,27cyclictest0-21swapper/109:52:171
2431099574,44cyclictest11324-21yum-updatesd-he07:07:252
2431099574,44cyclictest11324-21yum-updatesd-he07:07:252
24310995728,13cyclictest0-21swapper/211:49:132
2431099572,50cyclictest0-21swapper/211:46:242
24310995719,12cyclictest0-21swapper/207:42:402
2430999575,45cyclictest22842-21cpuspeed09:22:221
2430999574,47cyclictest0-21swapper/109:59:121
2430999574,47cyclictest0-21swapper/108:49:011
2430999574,46cyclictest0-21swapper/111:03:391
2430999574,45cyclictest12409-21yum-updatesd-he09:07:261
24309995723,12cyclictest0-21swapper/108:39:541
174772575,10sleep117602-21cpuspeed_turbos10:02:211
24310995637,11cyclictest3689-21sed10:27:362
2431099562,48cyclictest0-21swapper/210:42:072
2430999564,46cyclictest0-21swapper/110:42:271
2430999564,45cyclictest0-21swapper/109:12:301
2430999564,45cyclictest0-21swapper/109:12:301
2430999564,44cyclictest0-21swapper/110:12:341
2430999564,31cyclictest0-21swapper/106:57:131
2430999563,47cyclictest8697-21aten_r1power_en10:37:161
2430999563,46cyclictest0-21swapper/109:47:191
2430999563,46cyclictest0-21swapper/107:17:451
24309995627,15cyclictest0-21swapper/110:57:251
177962563,8sleep117802-21ssh10:49:421
72152553,45sleep10-21swapper/108:03:531
24310995528,11cyclictest0-21swapper/211:52:432
2430999554,44cyclictest0-21swapper/108:46:271
2430999554,34cyclictest0-21swapper/109:37:401
2430999553,45cyclictest0-21swapper/109:27:191
2430999553,45cyclictest0-21swapper/106:47:301
304152542,12sleep10-21swapper/110:21:481
2431099544,42cyclictest0-21swapper/207:47:252
2430999545,31cyclictest0-21swapper/107:37:231
2430999544,44cyclictest0-21swapper/109:35:181
24309995437,10cyclictest20044-21gltestperf09:17:301
2430999543,45cyclictest0-21swapper/109:02:451
2430999543,44cyclictest0-21swapper/107:42:301
2430999543,43cyclictest0-21swapper/108:17:271
2431099534,41cyclictest0-21swapper/208:22:372
2431099534,40cyclictest0-21swapper/206:37:242
24310995327,9cyclictest23834-21kworker/2:008:52:352
2431099532,44cyclictest0-21swapper/208:01:472
2431099532,44cyclictest0-21swapper/207:31:542
2430999534,41cyclictest0-21swapper/108:07:211
2430999534,28cyclictest0-21swapper/107:57:111
71492523,42sleep20-21swapper/208:03:012
254152522,11sleep10-21swapper/107:37:001
2431099524,29cyclictest0-21swapper/207:52:332
2431099524,29cyclictest0-21swapper/206:52:472
2431099524,29cyclictest0-21swapper/206:42:462
2431099524,28cyclictest0-21swapper/208:42:262
2431099524,28cyclictest0-21swapper/206:47:422
2430999524,40cyclictest0-21swapper/107:07:361
2430999524,40cyclictest0-21swapper/107:07:361
2430999524,30cyclictest0-21swapper/107:57:201
2430999524,29cyclictest0-21swapper/111:32:371
2430999524,29cyclictest0-21swapper/106:42:341
2430999523,43cyclictest0-21swapper/106:27:381
2430999523,43cyclictest0-21swapper/106:27:381
24309995222,13cyclictest0-21swapper/111:42:071
156112524,40sleep10-21swapper/107:13:541
83812513,12sleep10-21swapper/106:57:581
288582513,15sleep10-21swapper/106:34:401
2431099514,39cyclictest0-21swapper/208:17:092
2431099514,39cyclictest0-21swapper/207:32:442
2431099514,28cyclictest0-21swapper/207:02:302
2431099514,25cyclictest7739-21aten2.4-expect08:07:212
2431099513,41cyclictest0-21swapper/207:17:262
2431099512,43cyclictest0-21swapper/208:17:432
2430999515,38cyclictest0-21swapper/107:02:371
197922513,41sleep10-21swapper/107:22:411
24310995025,17cyclictest0-21swapper/206:59:422
2430999504,29cyclictest0-21swapper/107:49:251
167062493,39sleep10-21swapper/108:22:551
2431099484,37cyclictest0-21swapper/206:27:252
2431099484,37cyclictest0-21swapper/206:27:252
2430999484,35cyclictest10219-21aten_r1power_po08:12:231
2430999443,12cyclictest0-21swapper/106:27:141
2431099396,20cyclictest0-21swapper/206:27:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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