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2026-04-05 - 16:24

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 Sun Apr 05, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1690521160,4sleep116906-21hostname09:13:371
485921010,5sleep24860-21ssh08:08:032
248599830,4rtkit-daemon2484-21rtkit-daemon09:35:273
172832830,3sleep2281ktimersoftd/208:24:072
248599810,7rtkit-daemon0-21swapper/208:03:012
13814997815,51cyclictest0-21swapper/210:13:352
248599770,22rtkit-daemon0-21swapper/207:29:022
248599760,5rtkit-daemon2484-21rtkit-daemon09:54:123
248599760,5rtkit-daemon2484-21rtkit-daemon08:28:153
248599750,6rtkit-daemon0-21swapper/208:09:232
248599750,4rtkit-daemon2484-21rtkit-daemon10:05:113
248599750,4rtkit-daemon2484-21rtkit-daemon09:04:143
248599750,4rtkit-daemon2484-21rtkit-daemon08:36:523
248599750,4rtkit-daemon2484-21rtkit-daemon07:38:103
248599750,18rtkit-daemon281ktimersoftd/209:04:292
248599740,7rtkit-daemon0-21swapper/207:57:162
248599740,4rtkit-daemon2484-21rtkit-daemon07:46:473
248599740,22rtkit-daemon17443-21ssh10:01:562
248599740,13rtkit-daemon0-21swapper/208:39:152
248599730,8rtkit-daemon0-21swapper/208:48:592
248599730,6rtkit-daemon26-21rcuc/209:30:132
248599730,6rtkit-daemon26-21rcuc/209:30:132
248599720,6rtkit-daemon0-21swapper/208:38:072
13809997254,11cyclictest8409-21unixbench-2d08:58:590
248599710,9rtkit-daemon29-21ksoftirqd/207:01:042
248599710,8rtkit-daemon0-21swapper/207:03:482
248599710,4rtkit-daemon26-21rcuc/209:14:432
248599710,11rtkit-daemon0-21swapper/207:43:472
259572700,4sleep025959-21cat10:13:470
248599700,7rtkit-daemon0-21swapper/010:51:170
248599700,7rtkit-daemon0-21swapper/010:51:170
248599700,6rtkit-daemon0-21swapper/207:40:242
248599700,10rtkit-daemon0-21swapper/209:33:582
248599690,8rtkit-daemon0-21swapper/210:05:412
248599690,8rtkit-daemon0-21swapper/206:09:062
248599690,6rtkit-daemon0-21swapper/206:23:422
248599680,7rtkit-daemon0-21swapper/209:19:282
248599680,7rtkit-daemon0-21swapper/205:58:512
248599680,7rtkit-daemon0-21swapper/205:58:512
248599680,6rtkit-daemon0-21swapper/206:22:282
248599680,6rtkit-daemon0-21swapper/206:15:052
248599680,5rtkit-daemon26-21rcuc/208:58:442
248599680,5rtkit-daemon121850irq/46-eth007:49:322
248599680,5rtkit-daemon0-21swapper/209:38:422
248599680,5rtkit-daemon0-21swapper/206:07:212
248599680,4rtkit-daemon6556-21diskmemload08:43:442
13815996816,43cyclictest0-21swapper/309:38:333
13813996846,15cyclictest0-21swapper/109:43:341
110232680,11chrt1381399cyclictest07:28:471
248599670,8rtkit-daemon20063-21ntpdc08:28:532
248599670,7rtkit-daemon0-21swapper/209:57:342
248599670,7rtkit-daemon0-21swapper/209:25:432
248599670,7rtkit-daemon0-21swapper/206:40:192
248599670,7rtkit-daemon0-21swapper/205:49:142
248599670,6rtkit-daemon0-21swapper/208:21:452
248599670,10rtkit-daemon0-21swapper/207:27:472
248599670,10rtkit-daemon0-21swapper/207:27:472
248599660,9rtkit-daemon0-21swapper/205:25:152
248599660,8rtkit-daemon0-21swapper/208:17:462
248599660,7rtkit-daemon0-21swapper/206:54:192
248599660,7rtkit-daemon0-21swapper/206:50:112
248599660,7rtkit-daemon0-21swapper/205:56:592
248599660,6rtkit-daemon0-21swapper/208:55:072
248599660,6rtkit-daemon0-21swapper/206:33:202
248599660,5rtkit-daemon0-21swapper/207:33:402
248599660,5rtkit-daemon0-21swapper/207:09:262
248599660,5rtkit-daemon0-21swapper/205:43:592
248599660,5rtkit-daemon0-21swapper/205:31:452
248599660,10rtkit-daemon0-21swapper/206:44:572
248599660,10rtkit-daemon0-21swapper/206:44:572
13809996646,13cyclictest0-21swapper/010:33:580
248599650,8rtkit-daemon0-21swapper/209:08:512
248599650,7rtkit-daemon0-21swapper/207:18:402
248599650,7rtkit-daemon0-21swapper/206:34:422
248599650,6rtkit-daemon0-21swapper/207:13:482
248599650,5rtkit-daemon0-21swapper/205:38:592
248599640,6rtkit-daemon0-21swapper/205:34:142
248599640,10rtkit-daemon0-21swapper/010:28:030
13813996444,14cyclictest0-21swapper/108:02:261
248599630,9rtkit-daemon0-21swapper/009:44:270
248599630,4rtkit-daemon3-21ksoftirqd/010:38:400
13809996344,12cyclictest0-21swapper/008:26:240
248599620,9rtkit-daemon0-21swapper/009:42:050
248599620,7rtkit-daemon0-21swapper/010:31:100
248599620,6rtkit-daemon0-21swapper/009:49:490
248599620,10rtkit-daemon0-21swapper/010:45:170
13809996240,14cyclictest0-21swapper/007:38:300
248599610,7rtkit-daemon0-21swapper/010:10:410
248599610,7rtkit-daemon0-21swapper/010:10:410
248599610,7rtkit-daemon0-21swapper/009:03:440
248599610,6rtkit-daemon0-21swapper/010:18:330
13813996131,24cyclictest0-21swapper/108:25:331
1380999614,48cyclictest0-21swapper/007:28:430
13809996114,28cyclictest0-21swapper/010:03:430
156392602,9sleep10-21swapper/107:34:201
1381599604,12cyclictest0-21swapper/309:58:453
1381499605,37cyclictest0-21swapper/210:23:392
1381399604,49cyclictest0-21swapper/107:23:511
1381399604,49cyclictest0-21swapper/107:23:511
13809996040,13cyclictest0-21swapper/008:28:420
13809996033,10cyclictest6365-21taskset08:58:220
248599590,2rtkit-daemon0-21swapper/009:53:340
149192593,11sleep00-21swapper/008:22:490
1381599593,49cyclictest19916-21rm08:28:503
1381499597,31cyclictest11479-21rm10:39:472
13809995939,14cyclictest0-21swapper/007:54:030
13815995841,10cyclictest29227-21gltestperf05:53:543
1381599584,22cyclictest5730-21crond10:33:223
1381599583,47cyclictest0-21swapper/310:16:433
1381599583,12cyclictest0-21swapper/310:26:233
1381499585,46cyclictest0-21swapper/210:53:002
1381499585,46cyclictest0-21swapper/210:53:002
1381499584,34cyclictest0-21swapper/210:45:142
13814995812,25cyclictest0-21swapper/210:37:492
13813995841,10cyclictest11736-21timerwakeupswit09:03:581
308362573,46sleep00-21swapper/005:58:450
308362573,46sleep00-21swapper/005:58:450
225202574,12sleep00-21swapper/008:33:420
1381499577,29cyclictest1419-21runrttasks10:22:452
1381499574,13cyclictest0-21swapper/210:29:212
13813995738,13cyclictest0-21swapper/108:53:461
13813995735,15cyclictest0-21swapper/110:13:431
1381399573,13cyclictest0-21swapper/109:37:101
1380999574,46cyclictest0-21swapper/009:15:060
1380999574,21cyclictest0-21swapper/008:46:450
49242563,11sleep00-21swapper/008:08:180
223782563,8sleep022465-21aten2.4-expect06:48:440
13813995641,9cyclictest24576-21irqstats09:23:481
1381399563,46cyclictest0-21swapper/108:43:461
1380999564,32cyclictest0-21swapper/009:28:360
1380999564,32cyclictest0-21swapper/009:28:360
13809995639,10cyclictest32624-21unixbench_singl07:59:020
13809995635,14cyclictest0-21swapper/006:38:510
226482552,9sleep10-21swapper/107:44:281
1381599554,38cyclictest0-21swapper/308:15:473
1381599554,32cyclictest0-21swapper/307:29:583
1381599554,30cyclictest0-21swapper/308:53:533
1381499558,40cyclictest0-21swapper/210:11:032
1381499558,40cyclictest0-21swapper/210:11:032
13814995512,26cyclictest0-21swapper/209:48:382
13813995538,10cyclictest27716-21gltestperf09:28:441
13813995538,10cyclictest27716-21gltestperf09:28:441
13813995537,13cyclictest0-21swapper/110:23:251
13813995534,14cyclictest0-21swapper/105:43:451
13813995521,13cyclictest0-21swapper/107:07:491
1380999554,41cyclictest0-21swapper/008:38:450
13809995522,14cyclictest0-21swapper/007:44:010
13809995512,36cyclictest0-21swapper/007:48:470
279792543,9sleep00-21swapper/005:51:520
142822542,9sleep10-21swapper/108:20:331
1381599543,31cyclictest27552-21ssh08:39:443
13815995416,24cyclictest0-21swapper/308:09:423
13813995438,11cyclictest0-21swapper/110:23:421
13813995434,14cyclictest0-21swapper/110:47:171
13813995433,14cyclictest0-21swapper/110:38:491
13813995433,14cyclictest0-21swapper/108:50:501
13813995425,23cyclictest0-21swapper/110:01:381
1380999544,41cyclictest0-21swapper/009:58:570
1380999544,41cyclictest0-21swapper/008:48:390
13809995439,10cyclictest0-21swapper/008:13:270
13809995433,14cyclictest0-21swapper/009:33:460
1380999543,45cyclictest0-21swapper/007:13:530
136832547,37sleep31287-21snmpd05:22:253
69652532,9sleep30-21swapper/309:45:333
38412532,9sleep10-21swapper/108:04:201
220242533,9sleep00-21swapper/006:47:310
220242533,9sleep00-21swapper/006:47:310
1381599535,30cyclictest0-21swapper/308:08:293
1381599535,29cyclictest0-21swapper/310:08:373
1381599535,29cyclictest0-21swapper/310:08:373
1381599534,36cyclictest0-21swapper/307:38:323
1381599534,29cyclictest0-21swapper/306:03:553
1381599534,28cyclictest0-21swapper/306:18:453
13815995337,10cyclictest11159-21fschecks_time06:23:523
1381599533,26cyclictest0-21swapper/307:00:493
13815995313,24cyclictest0-21swapper/310:21:593
1381499536,39cyclictest0-21swapper/209:43:472
1381399535,42cyclictest0-21swapper/110:03:391
1381399535,41cyclictest0-21swapper/108:08:441
13813995334,13cyclictest0-21swapper/109:18:521
13813995333,14cyclictest0-21swapper/105:48:521
13813995332,14cyclictest0-21swapper/110:33:571
1380999534,43cyclictest0-21swapper/009:18:480
1380999534,31cyclictest0-21swapper/009:23:570
13809995338,10cyclictest0-21swapper/008:14:370
13809995338,10cyclictest0-21swapper/007:39:210
125482533,10sleep00-21swapper/006:28:320
310842523,42sleep31287-21snmpd08:45:183
255262523,9sleep00-21swapper/005:45:550
1381599525,19cyclictest31958-21munin-node05:58:583
1381599525,19cyclictest31958-21munin-node05:58:583
1381599524,28cyclictest0-21swapper/309:52:153
1381599524,27cyclictest0-21swapper/310:49:263
1381599524,27cyclictest0-21swapper/310:49:263
1381599524,23cyclictest29324-21users07:54:053
1381599524,10cyclictest11705-21runrttasks10:40:363
1381599523,25cyclictest7708-21iostat08:58:473
13815995217,28cyclictest12947-21hwlatdetect08:18:493
1381399524,36cyclictest0-21swapper/107:57:341
1381399524,23cyclictest0-21swapper/107:48:501
13813995235,12cyclictest0-21swapper/110:28:391
13813995234,12cyclictest0-21swapper/110:12:141
13813995234,12cyclictest0-21swapper/110:12:141
1381399523,44cyclictest0-21swapper/110:50:321
1381399523,44cyclictest0-21swapper/110:50:321
13813995229,7cyclictest14945-21latency_hist06:33:331
1380999526,38cyclictest0-21swapper/006:14:520
13809995237,10cyclictest0-21swapper/009:10:580
13809995233,10cyclictest13102-21grep06:28:440
13809995220,13cyclictest0-21swapper/006:19:060
198372513,9sleep00-21swapper/005:33:580
170942512,42sleep10-21swapper/106:35:271
164812510,6sleep116480-21aten2.4-expect05:28:461
1381599514,31cyclictest0-21swapper/310:37:383
1381599514,29cyclictest0-21swapper/307:58:393
1381599514,29cyclictest0-21swapper/307:48:453
13815995120,13cyclictest0-21swapper/309:14:363
1381399514,40cyclictest0-21swapper/109:48:481
13813995136,11cyclictest0-21swapper/108:33:281
13813995131,14cyclictest0-21swapper/107:40:221
1381399513,43cyclictest0-21swapper/109:43:211
1380999514,28cyclictest0-21swapper/005:54:080
1380999514,28cyclictest0-21swapper/005:23:350
13809995136,10cyclictest0-21swapper/007:23:390
13809995136,10cyclictest0-21swapper/007:23:390
1381599504,28cyclictest0-21swapper/307:03:553
1381599504,28cyclictest0-21swapper/306:53:313
1381599504,28cyclictest0-21swapper/306:38:523
1381599504,27cyclictest0-21swapper/309:18:423
1381599504,27cyclictest0-21swapper/307:13:473
1381599503,26cyclictest0-21swapper/309:26:013
1381599503,25cyclictest0-21swapper/309:08:373
1381599503,10cyclictest13805-21kernelversion10:43:453
13815995019,13cyclictest0-21swapper/306:13:453
13815995018,13cyclictest0-21swapper/306:33:483
1381399504,39cyclictest0-21swapper/108:33:441
1381399504,26cyclictest11909-21latency_hist08:18:291
13813995036,9cyclictest13058-21timerwakeupswit09:53:571
13813995033,11cyclictest0-21swapper/108:58:371
1381399503,41cyclictest0-21swapper/109:10:071
13809995034,11cyclictest0-21swapper/006:59:050
13809995034,11cyclictest0-21swapper/005:28:460
92852492,40sleep10-21swapper/106:19:021
265402493,40sleep00-21swapper/006:54:080
1381599494,39cyclictest0-21swapper/305:38:503
1381599494,27cyclictest0-21swapper/308:48:413
1381599494,27cyclictest0-21swapper/307:09:043
1381599494,27cyclictest0-21swapper/306:08:583
1381599494,11cyclictest7739-21munin-node07:23:513
1381599494,11cyclictest7739-21munin-node07:23:513
1381599493,26cyclictest0-21swapper/305:28:363
1381399494,28cyclictest0-21swapper/106:53:451
13813994929,13cyclictest0-21swapper/106:38:591
1380999494,28cyclictest0-21swapper/007:07:420
13809994935,8cyclictest670-21basename06:03:440
13809994931,11cyclictest16938-21grep06:34:050
13809994919,12cyclictest0-21swapper/005:39:010
130662494,36sleep113119-21switchtime05:19:011
63992483,39sleep00-21swapper/007:21:410
248599480,4rtkit-daemon2484-21rtkit-daemon05:19:522
1381599484,27cyclictest0-21swapper/306:43:423
1381599484,27cyclictest0-21swapper/306:43:423
1381599483,28cyclictest0-21swapper/305:33:483
1381599483,25cyclictest28888-21ssh09:29:303
1381599483,25cyclictest28888-21ssh09:29:303
13815994818,12cyclictest0-21swapper/305:43:583
1381399484,28cyclictest0-21swapper/105:39:031
53262473,38sleep00-21swapper/006:12:560
27192472,40sleep10-21swapper/106:05:031
242562472,9sleep10-21swapper/106:50:301
1381599474,26cyclictest0-21swapper/306:32:373
1381599473,27cyclictest0-21swapper/307:18:423
1381399474,37cyclictest0-21swapper/108:38:581
1381399474,27cyclictest0-21swapper/106:24:031
1381399474,27cyclictest0-21swapper/105:34:011
1381399474,26cyclictest0-21swapper/106:59:051
1381399473,27cyclictest0-21swapper/107:14:051
13813994718,12cyclictest0-21swapper/106:43:581
13813994718,12cyclictest0-21swapper/106:43:581
1380999474,15cyclictest0-21swapper/007:12:460
13809994731,11cyclictest0-21swapper/005:23:510
53522462,9sleep10-21swapper/106:13:181
294342462,38sleep10-21swapper/105:53:591
1381599464,26cyclictest0-21swapper/305:32:363
1381599463,31cyclictest0-21swapper/305:48:453
13815994616,13cyclictest0-21swapper/306:53:573
13813994630,10cyclictest31059-21cpuspeed_turbos05:58:461
13813994630,10cyclictest31059-21cpuspeed_turbos05:58:461
1381399463,21cyclictest31951-21aten2.4-expect07:08:421
63652452,9sleep10-21swapper/107:21:141
159302442,9sleep10-21swapper/105:25:161
76162432,9sleep10-21swapper/106:16:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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