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2026-08-20 - 17:09

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 the highest latencies:
System rack1slot6s.osadl.org (updated Thu Aug 20, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2194991020,5rtkit-daemon2193-21rtkit-daemon07:51:471
12369991024,89cyclictest0-21swapper/110:36:351
1236999984,85cyclictest0-21swapper/108:29:141
1236999983,45cyclictest8880-21yum-updatesd-he09:33:111
12370999719,8cyclictest31514-21ssh10:06:562
12370999719,8cyclictest31514-21ssh10:06:562
1236999974,46cyclictest0-21swapper/110:48:061
1236999963,41cyclictest0-21swapper/108:03:471
1236999963,41cyclictest0-21swapper/108:03:471
12370999550,38cyclictest0-21swapper/211:06:372
12370999539,50cyclictest0-21swapper/210:41:462
1236999954,44cyclictest0-21swapper/109:07:501
1237099946,26cyclictest0-21swapper/208:26:252
1236999944,46cyclictest0-21swapper/109:04:311
1236999944,43cyclictest0-21swapper/110:35:181
1237099935,80cyclictest0-21swapper/210:16:552
12369999327,14cyclictest0-21swapper/111:06:291
1237099924,37cyclictest0-21swapper/209:09:492
12369999230,12cyclictest10353-21cpuspeed_turbos09:36:351
1237099914,27cyclictest0-21swapper/210:46:422
1236999914,29cyclictest0-21swapper/108:11:561
1237099904,9cyclictest1227-21runrttasks08:37:272
1237099904,27cyclictest0-21swapper/208:26:412
1237099904,24cyclictest16772-21tune2fs08:56:422
12370999038,46cyclictest0-21swapper/208:05:392
12370999038,46cyclictest0-21swapper/208:05:392
12370999035,47cyclictest22904-21grep06:11:472
12370999027,14cyclictest0-21swapper/210:56:502
1237099895,25cyclictest0-21swapper/207:59:112
1237099894,76cyclictest0-21swapper/209:19:052
1237099894,37cyclictest0-21swapper/209:11:512
1237099894,33cyclictest0-21swapper/210:30:032
1237099894,14cyclictest0-21swapper/210:11:542
12370998937,46cyclictest0-21swapper/209:45:142
1236999897,22cyclictest0-21swapper/108:06:261
1236999895,13cyclictest0-21swapper/109:26:451
1236999895,13cyclictest0-21swapper/109:26:451
1236999894,48cyclictest0-21swapper/108:24:181
1236999894,42cyclictest0-21swapper/108:32:431
1236999894,29cyclictest0-21swapper/107:16:521
1237099885,32cyclictest13852-21munin-node10:31:342
1237099884,34cyclictest0-21swapper/209:46:342
1237099884,27cyclictest0-21swapper/208:11:452
1237099884,13cyclictest0-21swapper/207:18:222
1237099884,12cyclictest0-21swapper/210:21:312
1237099883,21cyclictest5295-21ssh09:26:572
1237099883,21cyclictest5295-21ssh09:26:572
12370998818,12cyclictest0-21swapper/209:56:312
1236999885,30cyclictest0-21swapper/110:11:461
1236999884,28cyclictest9530-21sort07:56:461
1236999883,40cyclictest0-21swapper/109:47:031
12369998810,23cyclictest0-21swapper/106:16:311
219499870,7rtkit-daemon0-21swapper/106:07:211
1237099874,34cyclictest0-21swapper/209:21:272
1237099874,26cyclictest0-21swapper/211:16:312
1237099874,26cyclictest0-21swapper/208:47:482
1237099874,25cyclictest0-21swapper/210:54:302
1237099874,25cyclictest0-21swapper/210:54:302
1237099873,32cyclictest0-21swapper/208:17:112
1236999874,44cyclictest0-21swapper/110:27:551
12367998730,49cyclictest0-21swapper/011:01:300
1237099864,35cyclictest0-21swapper/210:40:412
1237099864,34cyclictest0-21swapper/211:04:102
1237099864,26cyclictest0-21swapper/211:16:132
1237099863,23cyclictest27015-21ssh10:01:362
12370998628,11cyclictest24163-21grep07:21:482
12370998628,11cyclictest24163-21grep07:21:482
12370998616,13cyclictest0-21swapper/209:01:552
12370998616,11cyclictest0-21swapper/208:55:302
1236999864,43cyclictest26668-21perl09:11:421
1237099855,38cyclictest0-21swapper/208:46:252
1237099855,38cyclictest0-21swapper/208:46:252
1237099854,39cyclictest0-21swapper/209:31:582
1237099854,27cyclictest0-21swapper/207:05:222
1237099854,24cyclictest0-21swapper/208:07:192
1236999857,22cyclictest0-21swapper/106:01:311
1236999857,22cyclictest0-21swapper/106:01:311
1236999857,22cyclictest0-21swapper/105:51:311
1236999855,16cyclictest0-21swapper/110:09:391
1236999855,16cyclictest0-21swapper/110:09:391
12367998528,49cyclictest0-21swapper/009:26:360
12367998528,49cyclictest0-21swapper/009:26:360
1237099847,22cyclictest0-21swapper/209:36:582
1237099845,25cyclictest0-21swapper/207:53:052
1237099844,34cyclictest0-21swapper/209:53:372
12369998436,10cyclictest4312-21cut10:16:331
12367998432,45cyclictest9401-21munin-node08:46:480
219499830,5rtkit-daemon2193-21rtkit-daemon08:14:393
219499830,5rtkit-daemon2193-21rtkit-daemon07:46:473
1237099834,13cyclictest0-21swapper/207:11:432
1237099834,13cyclictest0-21swapper/206:56:462
1237099834,13cyclictest0-21swapper/205:56:592
1237099834,13cyclictest0-21swapper/205:56:592
1237099833,28cyclictest0-21swapper/208:32:052
12367998326,48cyclictest0-21swapper/010:48:140
12367998324,50cyclictest0-21swapper/008:43:450
12367998324,50cyclictest0-21swapper/008:43:450
219499820,5rtkit-daemon2193-21rtkit-daemon10:15:193
1237099825,36cyclictest0-21swapper/206:07:032
1237099824,35cyclictest0-21swapper/206:36:562
1237099824,33cyclictest0-21swapper/206:41:422
1237099824,33cyclictest0-21swapper/206:41:422
12367998228,47cyclictest0-21swapper/009:22:510
219499810,5rtkit-daemon2193-21rtkit-daemon09:19:063
219499810,5rtkit-daemon2193-21rtkit-daemon07:06:573
219499810,4rtkit-daemon2193-21rtkit-daemon08:49:453
1237099814,35cyclictest0-21swapper/207:51:202
1237099814,13cyclictest0-21swapper/207:42:262
1237099813,25cyclictest0-21swapper/207:06:382
12370998129,12cyclictest0-21swapper/206:33:232
1236999815,30cyclictest0-21swapper/110:43:431
12367998131,34cyclictest0-21swapper/007:56:410
12367998129,29cyclictest5642-21rm11:06:410
12367998125,48cyclictest0-21swapper/008:21:050
1237099804,35cyclictest0-21swapper/206:01:522
1237099804,12cyclictest0-21swapper/207:27:562
1236999808,20cyclictest0-21swapper/107:36:281
1236999805,28cyclictest0-21swapper/110:54:111
1236999805,28cyclictest0-21swapper/110:54:111
12367998028,43cyclictest5941-21ssh07:51:430
12367998025,47cyclictest6664-21aten2.4-expect06:46:420
12367998025,35cyclictest0-21swapper/011:16:400
1237099794,34cyclictest0-21swapper/205:52:002
1237099794,24cyclictest0-21swapper/206:48:232
1236999797,24cyclictest0-21swapper/107:46:271
12369997910,21cyclictest0-21swapper/106:36:301
12367997930,30cyclictest1676-21ssh08:33:330
12367997930,16cyclictest2784-21ssh08:36:320
12367997924,33cyclictest0-21swapper/008:11:190
219499780,4rtkit-daemon2193-21rtkit-daemon07:01:573
1237099784,33cyclictest0-21swapper/207:36:482
12370997815,12cyclictest0-21swapper/206:21:492
1236999785,17cyclictest0-21swapper/109:46:011
1236999785,17cyclictest0-21swapper/108:54:271
12369997812,16cyclictest23336-21needreboot06:11:541
12369997810,21cyclictest0-21swapper/108:51:251
12367997831,29cyclictest1227-21runrttasks09:36:320
12367997828,43cyclictest0-21swapper/010:30:370
12367997828,42cyclictest0-21swapper/010:22:040
12367997828,33cyclictest0-21swapper/008:25:510
12367997827,43cyclictest0-21swapper/009:41:360
12367997824,45cyclictest0-21swapper/010:13:490
12367997823,47cyclictest0-21swapper/010:33:280
12367997823,37cyclictest0-21swapper/009:46:340
219499770,4rtkit-daemon2193-21rtkit-daemon08:26:463
12367997734,26cyclictest29557-21cpuspeed_turbos06:26:420
12367997731,31cyclictest20464-21tail08:12:000
12367997730,41cyclictest12819-21kworker/0:008:56:440
12367997729,41cyclictest0-21swapper/009:33:080
12367997728,33cyclictest0-21swapper/007:36:260
12367997727,30cyclictest0-21swapper/009:56:320
12367997723,47cyclictest0-21swapper/011:11:340
12367997722,46cyclictest0-21swapper/010:03:180
219499760,5rtkit-daemon2193-21rtkit-daemon10:26:343
219499760,5rtkit-daemon2193-21rtkit-daemon10:01:423
219499760,5rtkit-daemon2193-21rtkit-daemon08:06:473
12367997633,15cyclictest3976-21kernelversion07:46:490
12367997632,19cyclictest26732-21ssh09:11:430
12367997628,32cyclictest0-21swapper/009:51:280
12367997628,16cyclictest0-21swapper/008:01:500
12367997628,16cyclictest0-21swapper/008:01:500
12367997627,33cyclictest0-21swapper/010:36:270
12367997627,21cyclictest0-21swapper/010:51:290
12367997627,21cyclictest0-21swapper/010:51:290
12367997624,34cyclictest0-21swapper/010:56:450
12367997623,44cyclictest0-21swapper/009:07:430
12367997620,50cyclictest0-21swapper/007:36:400
1237099754,26cyclictest0-21swapper/206:54:252
12367997528,28cyclictest0-21swapper/008:26:570
12367997524,44cyclictest0-21swapper/010:07:590
12367997524,44cyclictest0-21swapper/010:07:590
12367997523,44cyclictest0-21swapper/010:20:060
12367997523,44cyclictest0-21swapper/009:17:130
12367997522,45cyclictest0-21swapper/008:53:390
12367997521,32cyclictest0-21swapper/010:43:510
12367997520,34cyclictest0-21swapper/006:51:430
12367997328,38cyclictest0-21swapper/006:11:300
12367997328,20cyclictest0-21swapper/006:02:010
12367997327,38cyclictest0-21swapper/009:01:340
12367997325,40cyclictest0-21swapper/007:06:470
219499720,5rtkit-daemon2193-21rtkit-daemon08:44:303
219499720,5rtkit-daemon2193-21rtkit-daemon08:44:303
219499710,5rtkit-daemon2193-21rtkit-daemon09:36:363
219499710,4rtkit-daemon2193-21rtkit-daemon09:06:443
219499710,4rtkit-daemon2193-21rtkit-daemon07:16:413
219499710,4rtkit-daemon2193-21rtkit-daemon07:11:413
12367997128,25cyclictest3935-21awk06:41:280
12367997121,36cyclictest0-21swapper/006:59:260
219499700,5rtkit-daemon2193-21rtkit-daemon10:51:403
219499700,5rtkit-daemon2193-21rtkit-daemon10:51:403
219499700,5rtkit-daemon2193-21rtkit-daemon09:41:283
219499700,5rtkit-daemon2193-21rtkit-daemon07:36:483
219499700,4rtkit-daemon2193-21rtkit-daemon08:33:463
12367997031,32cyclictest0-21swapper/006:20:010
12367997025,38cyclictest0-21swapper/006:41:450
12367997025,38cyclictest0-21swapper/006:41:450
12367997025,29cyclictest0-21swapper/007:21:420
12367997025,29cyclictest0-21swapper/007:21:420
12367997022,31cyclictest0-21swapper/007:44:340
12367997021,28cyclictest0-21swapper/007:16:390
219499690,4rtkit-daemon2193-21rtkit-daemon08:38:383
12367996925,37cyclictest0-21swapper/006:31:410
12367996923,29cyclictest0-21swapper/005:56:420
12367996923,29cyclictest0-21swapper/005:56:420
12367996919,32cyclictest0-21swapper/006:21:430
12367996916,45cyclictest0-21swapper/007:01:410
219499680,6rtkit-daemon0-21swapper/308:02:243
219499680,6rtkit-daemon0-21swapper/308:02:243
219499680,5rtkit-daemon2193-21rtkit-daemon09:28:433
219499680,5rtkit-daemon2193-21rtkit-daemon09:28:433
219499680,4rtkit-daemon2193-21rtkit-daemon10:44:253
219499680,4rtkit-daemon2193-21rtkit-daemon10:20:113
12367996844,15cyclictest877-21dbus-daemon05:51:300
219499670,4rtkit-daemon2193-21rtkit-daemon10:35:563
219499670,4rtkit-daemon2193-21rtkit-daemon09:46:353
219499670,4rtkit-daemon2193-21rtkit-daemon09:21:363
219499670,4rtkit-daemon2193-21rtkit-daemon08:21:393
12367996729,21cyclictest0-21swapper/007:11:510
219499660,4rtkit-daemon2193-21rtkit-daemon10:23:413
219499660,4rtkit-daemon2193-21rtkit-daemon09:34:213
219499660,21rtkit-daemon2193-21rtkit-daemon08:58:003
12367996621,37cyclictest0-21swapper/005:51:410
12367996535,23cyclictest22998-21grep06:11:480
1236999644,52cyclictest0-21swapper/109:21:381
1236999644,51cyclictest0-21swapper/109:51:331
12367996434,24cyclictest26542-21gltestperf07:26:440
12371996329,25cyclictest866-21sadc11:01:183
1237199614,29cyclictest0-21swapper/311:21:183
1236999614,49cyclictest0-21swapper/111:21:181
1236999614,49cyclictest0-21swapper/110:21:311
1236999614,49cyclictest0-21swapper/106:26:291
1236999594,47cyclictest7929-21sed08:41:581
1236999594,47cyclictest7929-21sed08:41:581
207742583,9sleep320789-21python09:01:543
1236999574,48cyclictest0-21swapper/109:16:541
12369995719,22cyclictest20113-21timerwakeupswit07:12:011
219499560,5rtkit-daemon0-21swapper/307:35:032
17192564,44sleep30-21swapper/306:36:413
1236999564,47cyclictest0-21swapper/110:05:011
1236999564,46cyclictest0-21swapper/111:13:451
1236999563,9cyclictest17359-21munin-node06:01:401
12371995524,22cyclictest0-21swapper/310:06:543
12371995524,22cyclictest0-21swapper/310:06:543
188472542,9sleep10-21swapper/109:00:481
1237199544,43cyclictest0-21swapper/310:37:443
12371995424,23cyclictest12946-21cpuspeed_turbos05:51:433
1236999544,43cyclictest0-21swapper/109:57:501
1236999543,27cyclictest0-21swapper/108:18:361
269162534,10sleep30-21swapper/307:26:523
263412533,9sleep30-21swapper/310:49:443
1237199534,42cyclictest0-21swapper/308:16:593
12371995337,10cyclictest7083-21tail07:51:593
12371995335,11cyclictest9604-21sort06:51:463
1236999534,44cyclictest0-21swapper/111:04:371
58832523,41sleep35912-21ntp_states11:06:453
275952522,44sleep10-21swapper/107:28:391
240312523,42sleep324079-21gltestperf07:21:483
240312523,42sleep324079-21gltestperf07:21:483
1237199524,35cyclictest0-21swapper/308:00:593
1237199524,29cyclictest0-21swapper/306:12:013
12371995222,13cyclictest0-21swapper/308:55:443
1237099525,39cyclictest0-21swapper/206:21:292
1236999524,29cyclictest0-21swapper/110:56:331
12369995220,12cyclictest0-21swapper/107:41:551
49592513,40sleep35058-21munin-node06:41:493
49592513,40sleep35058-21munin-node06:41:493
1237199514,31cyclictest0-21swapper/309:14:223
1237199514,13cyclictest0-21swapper/311:02:433
1236999514,27cyclictest0-21swapper/107:11:281
12369995121,14cyclictest0-21swapper/107:01:501
12369995117,13cyclictest0-21swapper/106:30:161
37022502,39sleep10-21swapper/106:38:361
253472503,41sleep30-21swapper/306:16:493
1237199505,27cyclictest0-21swapper/309:56:403
1237199504,27cyclictest0-21swapper/306:56:483
1236999504,39cyclictest0-21swapper/106:41:541
1236999504,39cyclictest0-21swapper/106:41:541
12369995019,13cyclictest0-21swapper/108:36:351
1237199494,27cyclictest0-21swapper/306:46:443
1237199493,22cyclictest0-21swapper/307:41:373
1236999494,28cyclictest0-21swapper/107:26:271
1236999494,28cyclictest0-21swapper/107:26:271
108462492,9sleep10-21swapper/106:53:081
1237199484,28cyclictest0-21swapper/306:21:473
1237199484,26cyclictest0-21swapper/309:55:253
1237199484,26cyclictest0-21swapper/305:56:513
1237199484,26cyclictest0-21swapper/305:56:513
1237199484,25cyclictest8693-21gltestperf11:11:373
1236999484,28cyclictest0-21swapper/106:56:381
316522473,37sleep131701-21ntp_kernel_pll_07:36:541
1237199477,24cyclictest0-21swapper/306:06:423
12371994730,10cyclictest31826-21aten_r1power_vo06:31:393
1237099464,23cyclictest0-21swapper/206:26:402
1236999454,33cyclictest0-21swapper/106:46:431
12369994520,12cyclictest0-21swapper/105:52:011
191712442,36sleep30-21swapper/306:02:103
1237199443,32cyclictest0-21swapper/305:51:313
313272433,9sleep30-21swapper/306:30:083
1237199432,36cyclictest0-21swapper/307:34:273
1237099392,31cyclictest0-21swapper/205:51:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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