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2026-05-28 - 02:25

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 Thu May 28, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2485991050,6rtkit-daemon0-21swapper/118:36:401
2485991050,5rtkit-daemon2484-21rtkit-daemon19:49:222
4075991025,15cyclictest2513-21udisks-daemon20:14:431
4075999813,9cyclictest6207-21gltestperf21:09:241
407799974,72cyclictest0-21swapper/320:07:413
4075999714,9cyclictest24550-21latency_hist19:14:111
248599960,7rtkit-daemon0-21swapper/120:20:201
248599960,7rtkit-daemon0-21swapper/120:20:201
407799955,67cyclictest0-21swapper/319:57:433
407799954,71cyclictest0-21swapper/320:02:253
4075999524,47cyclictest311-21ssh20:59:401
4075999524,47cyclictest311-21ssh20:59:401
407799948,63cyclictest0-21swapper/321:44:493
407599944,16cyclictest0-21swapper/118:45:051
407599936,9cyclictest121850irq/46-eth020:00:091
407599934,24cyclictest10089-21latency_hist22:04:031
4075999321,51cyclictest0-21swapper/121:04:411
4075999313,13cyclictest0-21swapper/118:59:231
4075999312,13cyclictest25868-21cut19:14:331
4074999330,14cyclictest310821ssh19:24:080
248599930,6rtkit-daemon0-21swapper/121:21:031
248599930,6rtkit-daemon0-21swapper/118:22:551
407599924,79cyclictest0-21swapper/121:40:091
407599924,79cyclictest0-21swapper/121:40:091
407599924,69cyclictest0-21swapper/119:26:431
407599924,66cyclictest0-21swapper/120:29:221
4075999214,10cyclictest1419-21runrttasks16:49:461
4075999214,10cyclictest1419-21runrttasks16:49:461
248599920,5rtkit-daemon2484-21rtkit-daemon21:16:263
407799914,67cyclictest0-21swapper/321:23:033
407599915,66cyclictest0-21swapper/118:04:341
407599914,78cyclictest0-21swapper/119:44:411
248599910,6rtkit-daemon0-21swapper/121:49:241
407799905,63cyclictest0-21swapper/320:21:543
407799905,63cyclictest0-21swapper/320:21:543
407799904,65cyclictest0-21swapper/317:04:143
4077999015,52cyclictest0-21swapper/319:25:483
407599903,79cyclictest22616-21grep20:44:371
4075999012,7cyclictest29099-21diskmemload19:58:561
407799895,65cyclictest0-21swapper/321:39:363
407799895,65cyclictest0-21swapper/321:39:363
407799894,66cyclictest0-21swapper/321:05:383
407799894,64cyclictest0-21swapper/321:09:213
407799894,59cyclictest0-21swapper/319:14:123
407799893,65cyclictest32762-21taskset20:14:103
4077998920,52cyclictest1243-21lldpd21:57:213
407599899,16cyclictest0-21swapper/121:24:361
407599895,12cyclictest4219-21rm19:29:421
4075998915,12cyclictest0-21swapper/119:49:331
407799884,66cyclictest0-21swapper/319:54:083
407799884,61cyclictest0-21swapper/320:36:083
407799884,58cyclictest0-21swapper/321:51:123
407799884,14cyclictest0-21swapper/318:39:253
407799884,13cyclictest0-21swapper/320:59:303
407799884,13cyclictest0-21swapper/320:59:303
407599884,67cyclictest0-21swapper/121:36:161
407599884,62cyclictest0-21swapper/118:49:301
407599884,23cyclictest29099-21diskmemload21:30:301
407599884,14cyclictest0-21swapper/119:19:221
407599883,77cyclictest0-21swapper/117:59:301
407599883,76cyclictest2321-21unixbench_singl18:39:451
407799874,71cyclictest0-21swapper/319:43:303
407799874,67cyclictest0-21swapper/321:28:303
407799874,66cyclictest0-21swapper/319:07:183
407799874,65cyclictest0-21swapper/320:41:423
407799874,21cyclictest0-21swapper/320:27:563
407799874,12cyclictest0-21swapper/321:59:353
4077998718,53cyclictest0-21swapper/318:34:403
407599876,64cyclictest0-21swapper/118:55:291
407599876,64cyclictest0-21swapper/118:55:291
407599874,65cyclictest0-21swapper/120:55:231
407599874,15cyclictest0-21swapper/121:14:231
4075998727,51cyclictest1158-21fschecks_count17:34:311
4075998725,44cyclictest10435-21ssh19:39:331
4075998718,49cyclictest0-21swapper/119:04:341
407799864,62cyclictest0-21swapper/318:44:283
407799864,59cyclictest0-21swapper/321:29:163
407799864,12cyclictest0-21swapper/317:39:393
407599865,73cyclictest0-21swapper/120:37:451
407599864,75cyclictest0-21swapper/120:39:321
4074998632,46cyclictest0-21swapper/020:19:350
4074998632,46cyclictest0-21swapper/020:19:350
407799854,66cyclictest0-21swapper/320:10:093
407799854,65cyclictest0-21swapper/319:02:043
407799854,65cyclictest0-21swapper/317:59:393
407799854,64cyclictest0-21swapper/320:31:433
407799854,57cyclictest0-21swapper/320:53:483
407799853,64cyclictest0-21swapper/320:54:213
407599854,72cyclictest7170-21munin-node19:34:351
407599854,72cyclictest0-21swapper/120:50:001
407599854,72cyclictest0-21swapper/117:20:521
407599854,71cyclictest4568-21iostat21:54:251
407599853,59cyclictest0-21swapper/116:54:291
407599853,27cyclictest1419-21runrttasks17:14:101
4075998519,57cyclictest18231-21gltestperf18:09:301
4075998518,46cyclictest0-21swapper/120:25:571
4074998533,44cyclictest25307-21tune2fs19:14:250
248599850,5rtkit-daemon2484-21rtkit-daemon20:44:272
407799844,64cyclictest0-21swapper/317:15:413
407799844,63cyclictest0-21swapper/317:09:303
407799844,57cyclictest0-21swapper/320:48:093
407799843,57cyclictest0-21swapper/321:35:493
407599845,62cyclictest0-21swapper/121:44:571
407599845,55cyclictest0-21swapper/120:05:311
407599844,72cyclictest0-21swapper/117:59:121
407599844,71cyclictest30864-21processes20:09:351
407599844,16cyclictest27004-21aten2.4-expect18:29:221
407599844,15cyclictest0-21swapper/117:49:291
4074998433,11cyclictest8382-21munin-node21:59:330
4074998432,45cyclictest0-21swapper/020:39:230
407799834,61cyclictest0-21swapper/319:22:073
407799834,14cyclictest0-21swapper/319:09:243
407799833,18cyclictest5979-21aten_r1power_vo19:34:203
4077998318,41cyclictest0-21swapper/317:50:493
4077998310,49cyclictest0-21swapper/319:44:373
4075998323,53cyclictest28599-21seq17:24:281
4074998337,37cyclictest1419-21runrttasks20:26:510
248599830,4rtkit-daemon2484-21rtkit-daemon18:03:262
407799824,24cyclictest0-21swapper/318:19:313
4075998217,56cyclictest0-21swapper/117:44:261
4074998246,29cyclictest8400-21ssh21:13:480
4074998228,47cyclictest0-21swapper/020:34:470
4074998227,49cyclictest0-21swapper/021:44:200
407799814,62cyclictest0-21swapper/318:56:153
407799814,62cyclictest0-21swapper/318:56:153
407799814,54cyclictest0-21swapper/318:50:103
4077998120,53cyclictest4646-21cpuspeed_turbos16:34:293
4077998114,45cyclictest0-21swapper/319:33:503
4074998134,39cyclictest24124-21unixbench_singl21:34:370
4074998132,43cyclictest0-21swapper/019:25:060
4074998132,40cyclictest0-21swapper/016:54:150
4074998132,40cyclictest0-21swapper/016:54:150
4074998131,44cyclictest13002-21ssh20:31:190
4074998129,45cyclictest0-21swapper/017:39:130
407799804,59cyclictest0-21swapper/318:09:343
407799804,21cyclictest0-21swapper/316:54:353
407799804,15cyclictest0-21swapper/318:04:273
4075998022,51cyclictest32715-21crond17:34:131
4075998022,51cyclictest32715-21crond17:34:131
4074998035,39cyclictest22997-21gltestperf18:19:300
4074998033,40cyclictest1419-21runrttasks20:53:370
4074998030,41cyclictest0-21swapper/020:14:380
4074998029,44cyclictest0-21swapper/019:49:430
244442800,5sleep20-21swapper/219:14:102
4077997924,48cyclictest0-21swapper/317:04:373
4077997917,11cyclictest11575-21telnet16:49:263
4077997917,11cyclictest11575-21telnet16:49:263
407599795,17cyclictest0-21swapper/118:16:011
407599795,17cyclictest0-21swapper/118:16:011
4074997932,40cyclictest26417-21fschecks_count17:19:300
4074997931,42cyclictest0-21swapper/019:37:420
4074997927,45cyclictest0-21swapper/020:04:230
4074997925,48cyclictest0-21swapper/021:42:220
4074997925,48cyclictest0-21swapper/021:42:220
4074997921,22cyclictest0-21swapper/021:02:250
4074997921,22cyclictest0-21swapper/021:02:250
407799784,66cyclictest0-21swapper/317:44:323
407799784,59cyclictest0-21swapper/318:34:103
407799784,21cyclictest0-21swapper/317:29:243
407799784,21cyclictest0-21swapper/317:29:243
407799783,67cyclictest29195-21munin-node17:24:363
4075997812,8cyclictest0-21swapper/116:34:281
4074997833,38cyclictest15457-21hwlatdetect18:59:310
4074997831,39cyclictest17027-21sh21:24:360
4074997828,44cyclictest0-21swapper/020:57:120
4074997828,43cyclictest0-21swapper/019:09:210
4074997827,44cyclictest0-21swapper/019:39:390
4074997826,31cyclictest0-21swapper/019:59:130
4077997723,45cyclictest7877-21tail16:39:413
407599775,15cyclictest0-21swapper/117:08:411
407599773,67cyclictest0-21swapper/116:34:161
4075997714,10cyclictest4712-21unixbench-2d17:39:451
4074997729,41cyclictest0-21swapper/019:29:320
4074997728,42cyclictest0-21swapper/019:44:220
4074997728,42cyclictest0-21swapper/018:56:560
4074997728,42cyclictest0-21swapper/018:56:560
4074997727,44cyclictest0-21swapper/019:54:250
4074997723,47cyclictest0-21swapper/020:09:210
4077997617,51cyclictest26625-21gltestperf17:19:323
407599764,16cyclictest0-21swapper/118:25:371
4074997631,39cyclictest1419-21runrttasks21:53:090
407799753,21cyclictest0-21swapper/318:24:243
4077997521,36cyclictest0-21swapper/317:55:503
407599754,14cyclictest0-21swapper/116:39:271
4075997520,10cyclictest16288-21aten_r1power_en16:59:261
4075997514,11cyclictest9850-21fschecks_time16:44:331
4075997511,11cyclictest0-21swapper/117:15:451
4074997533,35cyclictest12633-21taskset17:59:230
4074997531,38cyclictest0-21swapper/018:49:190
4074997531,37cyclictest0-21swapper/021:19:170
4074997528,40cyclictest3512-21basename21:54:130
4074997527,41cyclictest0-21swapper/018:37:000
4074997526,43cyclictest0-21swapper/021:18:100
4074997526,33cyclictest0-21swapper/018:40:290
4074997524,45cyclictest0-21swapper/016:59:160
407799744,62cyclictest20586-21gltestperf18:14:313
407799744,62cyclictest20586-21gltestperf18:14:313
4074997431,36cyclictest0-21swapper/020:44:140
4074997430,29cyclictest0-21swapper/021:04:320
4074997429,39cyclictest0-21swapper/018:48:230
4074997429,36cyclictest0-21swapper/017:39:260
4074997428,40cyclictest0-21swapper/021:33:470
4074997423,43cyclictest0-21swapper/016:44:150
4074997420,45cyclictest0-21swapper/019:04:250
407799734,20cyclictest0-21swapper/316:44:323
4074997355,12cyclictest5144-21sed16:34:350
4074997332,35cyclictest17428-21aten_r1power_en18:09:220
4074997330,16cyclictest0-21swapper/017:24:240
4074997328,38cyclictest0-21swapper/017:09:260
407799723,61cyclictest830-21cpuspeed_turbos17:34:273
4074997230,35cyclictest0-21swapper/017:29:280
4074997230,35cyclictest0-21swapper/017:29:280
4074997227,39cyclictest0-21swapper/018:16:250
4074997227,39cyclictest0-21swapper/018:16:250
248599710,4rtkit-daemon2484-21rtkit-daemon17:39:422
4074997031,32cyclictest0-21swapper/017:46:500
4074997029,35cyclictest17160-21awk18:09:110
4074997029,35cyclictest0-21swapper/017:04:350
248599700,5rtkit-daemon2484-21rtkit-daemon17:04:432
248599700,4rtkit-daemon2484-21rtkit-daemon19:02:392
407799694,13cyclictest0-21swapper/316:34:163
4074996927,36cyclictest0-21swapper/016:44:360
4074996922,40cyclictest0-21swapper/017:54:260
248599690,5rtkit-daemon2484-21rtkit-daemon20:43:052
248599680,5rtkit-daemon2484-21rtkit-daemon22:01:092
248599680,4rtkit-daemon2484-21rtkit-daemon21:42:102
248599680,4rtkit-daemon2484-21rtkit-daemon21:42:102
248599680,4rtkit-daemon2484-21rtkit-daemon21:06:192
248599680,4rtkit-daemon2484-21rtkit-daemon19:29:452
248599680,4rtkit-daemon2484-21rtkit-daemon19:14:162
248599680,4rtkit-daemon2484-21rtkit-daemon17:57:262
248599670,4rtkit-daemon2484-21rtkit-daemon21:54:322
248599670,4rtkit-daemon2484-21rtkit-daemon20:59:562
248599670,4rtkit-daemon2484-21rtkit-daemon20:59:562
248599670,4rtkit-daemon2484-21rtkit-daemon20:58:112
248599670,4rtkit-daemon2484-21rtkit-daemon19:38:002
248599670,4rtkit-daemon2484-21rtkit-daemon19:23:152
248599670,4rtkit-daemon2484-21rtkit-daemon19:06:312
248599670,4rtkit-daemon2484-21rtkit-daemon18:20:032
248599670,4rtkit-daemon2484-21rtkit-daemon16:54:442
407699664,44cyclictest0-21swapper/220:50:292
4074996635,16cyclictest1287-21snmpd18:33:430
4074996621,39cyclictest0-21swapper/018:24:230
248599660,4rtkit-daemon2484-21rtkit-daemon20:13:132
248599660,4rtkit-daemon2484-21rtkit-daemon20:07:432
248599660,4rtkit-daemon2484-21rtkit-daemon20:01:442
248599660,4rtkit-daemon2484-21rtkit-daemon19:27:532
248599660,4rtkit-daemon2484-21rtkit-daemon18:56:312
248599660,4rtkit-daemon2484-21rtkit-daemon18:56:312
248599660,4rtkit-daemon2484-21rtkit-daemon17:00:282
248599660,22rtkit-daemon2484-21rtkit-daemon21:09:112
4074996546,12cyclictest4066-21cyclictest16:34:150
248599650,4rtkit-daemon2484-21rtkit-daemon21:16:332
87962640,9sleep0407499cyclictest17:49:310
407699644,52cyclictest0-21swapper/217:09:322
248599640,4rtkit-daemon2484-21rtkit-daemon20:14:282
4074996324,33cyclictest0-21swapper/017:14:370
248599630,5rtkit-daemon2513-21udisks-daemon19:44:442
4074996125,26cyclictest0-21swapper/016:59:270
248599610,5rtkit-daemon2513-21udisks-daemon17:44:492
407699604,38cyclictest0-21swapper/218:34:302
407699598,40cyclictest0-21swapper/217:20:482
248599580,13rtkit-daemon2484-21rtkit-daemon19:55:142
407699574,36cyclictest0-21swapper/219:42:112
407699565,33cyclictest0-21swapper/221:20:332
407699564,34cyclictest0-21swapper/220:28:462
4076995628,20cyclictest27801-21head18:29:292
407699553,46cyclictest0-21swapper/221:36:122
407699553,36cyclictest0-21swapper/218:52:052
4076995435,11cyclictest24192-21grep17:14:322
407699543,34cyclictest16879-21ssh20:38:072
407699542,45cyclictest0-21swapper/218:24:442
323722543,11sleep20-21swapper/217:29:512
323722543,11sleep20-21swapper/217:29:512
407699535,14cyclictest0-21swapper/221:30:532
407699533,27cyclictest0-21swapper/220:29:252
31132533,11sleep20-21swapper/221:53:392
407699525,13cyclictest0-21swapper/221:27:422
407699524,41cyclictest4469-21df_abs20:19:222
407699524,41cyclictest4469-21df_abs20:19:222
407699524,32cyclictest0-21swapper/221:46:402
4076995221,13cyclictest0-21swapper/218:44:452
407699515,28cyclictest0-21swapper/217:24:272
407699514,28cyclictest0-21swapper/218:09:292
248599510,4rtkit-daemon2484-21rtkit-daemon16:52:592
248599510,4rtkit-daemon2484-21rtkit-daemon16:52:592
407699504,28cyclictest0-21swapper/216:39:292
407699504,27cyclictest0-21swapper/217:34:252
248599500,5rtkit-daemon2484-21rtkit-daemon18:14:402
248599500,5rtkit-daemon2484-21rtkit-daemon18:14:402
61962493,40sleep20-21swapper/216:36:062
407699494,38cyclictest0-21swapper/217:49:312
407699494,26cyclictest0-21swapper/218:39:222
407699474,23cyclictest0-21swapper/216:44:262
4076994720,7cyclictest4051-21latency_hist16:34:162
407699463,28cyclictest0-21swapper/218:04:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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