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2026-04-19 - 21:33

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 792 highest latencies:
System rack1slot6s.osadl.org (updated Sun Apr 19, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1711521040,3sleep1201ktimersoftd/108:15:521
2485991030,7rtkit-daemon0-21swapper/105:10:313
10418999616,24cyclictest1676-21nscd09:50:472
1041899935,28cyclictest0-21swapper/205:45:572
1041899934,28cyclictest0-21swapper/207:45:432
10418999222,12cyclictest0-21swapper/209:20:462
10418999216,25cyclictest1419-21runrttasks10:38:332
1041899916,21cyclictest1287-21snmpd09:00:152
1041899916,21cyclictest1287-21snmpd09:00:152
1041899915,26cyclictest0-21swapper/207:30:422
1041899914,29cyclictest0-21swapper/210:20:322
1041899913,28cyclictest0-21swapper/210:05:272
1041899913,27cyclictest0-21swapper/208:25:342
1041899909,13cyclictest0-21swapper/210:10:262
1041899906,26cyclictest0-21swapper/207:12:572
1041899904,28cyclictest0-21swapper/209:15:302
1041899904,27cyclictest0-21swapper/208:20:392
10418998915,19cyclictest9011-21ssh08:05:332
248599880,5rtkit-daemon2484-21rtkit-daemon07:06:562
1041899885,27cyclictest0-21swapper/207:55:092
10418998812,25cyclictest0-21swapper/209:10:522
1041899874,27cyclictest0-21swapper/206:20:452
1041899873,27cyclictest0-21swapper/207:35:322
1041899864,30cyclictest0-21swapper/207:59:582
1041899864,27cyclictest0-21swapper/205:25:392
1041899859,24cyclictest0-21swapper/209:38:432
1041899859,24cyclictest0-21swapper/209:38:432
1041899854,27cyclictest0-21swapper/210:25:322
10418998519,12cyclictest0-21swapper/206:15:342
1041899846,25cyclictest0-21swapper/206:49:532
1041899845,26cyclictest0-21swapper/208:11:432
1041899845,26cyclictest0-21swapper/208:11:432
1041899845,25cyclictest0-21swapper/208:03:492
1041899844,26cyclictest0-21swapper/206:40:392
1041899824,27cyclictest0-21swapper/209:00:332
1041899815,29cyclictest27193-21ssh07:45:162
10418998120,12cyclictest0-21swapper/209:30:512
1041899794,27cyclictest0-21swapper/208:50:512
1041899794,27cyclictest0-21swapper/208:50:512
248599710,11rtkit-daemon0-21swapper/309:49:353
10419997125,26cyclictest23030-21hwlatdetect08:25:403
1041999704,48cyclictest0-21swapper/310:20:193
10412997049,12cyclictest0-21swapper/008:40:350
10412996851,10cyclictest0-21swapper/008:40:170
1041999674,55cyclictest0-21swapper/309:05:363
1041799672,59cyclictest0-21swapper/107:25:371
10412996748,12cyclictest0-21swapper/009:15:470
248599660,8rtkit-daemon0-21swapper/307:10:263
248599650,4rtkit-daemon12-21rcu_preempt08:10:013
1041899654,52cyclictest0-21swapper/210:00:482
248599640,7rtkit-daemon0-21swapper/309:18:363
248599640,12rtkit-daemon0-21swapper/308:39:373
1041799642,56cyclictest0-21swapper/109:06:391
10412996432,23cyclictest0-21swapper/010:15:420
10412996432,23cyclictest0-21swapper/010:15:420
70072633,53sleep30-21swapper/310:25:363
248599630,9rtkit-daemon0-21swapper/307:09:563
248599630,4rtkit-daemon2484-21rtkit-daemon08:47:453
248599630,11rtkit-daemon0-21swapper/308:02:393
248599630,10rtkit-daemon0-21swapper/309:50:353
1041999634,51cyclictest25705-21gltestperf10:05:333
10412996343,13cyclictest0-21swapper/008:54:420
10412996343,13cyclictest0-21swapper/008:54:420
1041299633,53cyclictest5508-21gltestperf09:35:350
1041299633,53cyclictest5508-21gltestperf09:35:350
81762623,8sleep38301-21ssh08:50:503
81762623,8sleep38301-21ssh08:50:503
64982623,12sleep00-21swapper/007:15:200
248599620,9rtkit-daemon0-21swapper/309:58:273
248599620,9rtkit-daemon0-21swapper/307:32:103
248599620,9rtkit-daemon0-21swapper/307:18:183
248599620,9rtkit-daemon0-21swapper/305:38:443
248599620,9rtkit-daemon0-21swapper/305:38:443
248599620,8rtkit-daemon0-21swapper/310:17:113
248599620,8rtkit-daemon0-21swapper/310:17:113
248599620,8rtkit-daemon0-21swapper/308:18:083
248599620,8rtkit-daemon0-21swapper/307:00:493
248599620,12rtkit-daemon0-21swapper/310:37:403
248599620,11rtkit-daemon0-21swapper/310:02:043
248599620,11rtkit-daemon0-21swapper/309:41:123
248599620,11rtkit-daemon0-21swapper/309:22:213
248599620,11rtkit-daemon0-21swapper/306:46:273
248599620,11rtkit-daemon0-21swapper/306:41:273
248599620,11rtkit-daemon0-21swapper/305:56:293
248599620,10rtkit-daemon0-21swapper/308:15:083
248599620,10rtkit-daemon0-21swapper/308:15:083
10412996245,11cyclictest0-21swapper/010:27:310
10412996244,13cyclictest0-21swapper/009:51:580
248599610,9rtkit-daemon0-21swapper/308:41:523
248599610,9rtkit-daemon0-21swapper/307:51:393
248599610,9rtkit-daemon0-21swapper/307:49:023
248599610,8rtkit-daemon0-21swapper/309:26:503
248599610,8rtkit-daemon0-21swapper/309:00:513
248599610,8rtkit-daemon0-21swapper/307:45:093
248599610,8rtkit-daemon0-21swapper/306:55:493
248599610,8rtkit-daemon0-21swapper/306:55:493
248599610,8rtkit-daemon0-21swapper/306:03:513
248599610,12rtkit-daemon0-21swapper/309:36:203
248599610,12rtkit-daemon0-21swapper/309:36:203
248599610,12rtkit-daemon0-21swapper/306:51:423
248599610,12rtkit-daemon0-21swapper/306:36:053
248599610,11rtkit-daemon0-21swapper/310:31:033
248599610,11rtkit-daemon0-21swapper/310:11:263
248599610,11rtkit-daemon0-21swapper/309:34:353
248599610,11rtkit-daemon0-21swapper/308:31:153
248599610,11rtkit-daemon0-21swapper/307:27:553
248599610,11rtkit-daemon0-21swapper/307:20:403
248599610,11rtkit-daemon0-21swapper/305:52:443
248599610,11rtkit-daemon0-21swapper/305:30:453
248599610,11rtkit-daemon0-21swapper/305:15:303
248599610,10rtkit-daemon0-21swapper/309:12:513
248599610,10rtkit-daemon0-21swapper/308:20:313
130892613,12sleep00-21swapper/009:45:500
1041999613,43cyclictest0-21swapper/308:55:253
1041999613,43cyclictest0-21swapper/308:55:253
1041799613,52cyclictest0-21swapper/109:44:431
10412996145,11cyclictest0-21swapper/009:40:300
10412996143,12cyclictest0-21swapper/008:20:450
10412996142,12cyclictest0-21swapper/007:55:510
248599600,8rtkit-daemon0-21swapper/306:18:133
248599600,8rtkit-daemon0-21swapper/306:05:363
248599600,6rtkit-daemon0-21swapper/305:41:143
248599600,11rtkit-daemon0-21swapper/307:35:323
1041799603,49cyclictest0-21swapper/109:28:411
10412996040,13cyclictest0-21swapper/008:55:330
10412996040,13cyclictest0-21swapper/008:55:330
248599590,9rtkit-daemon0-21swapper/307:58:543
247752592,9sleep00-21swapper/010:05:170
10412995942,12cyclictest0-21swapper/005:50:420
10412995942,10cyclictest31166-21grep07:50:320
2097425819,33sleep10-21swapper/106:38:531
1041899584,37cyclictest0-21swapper/210:30:282
10417995844,8cyclictest11453-21memory07:20:431
10417995840,12cyclictest0-21swapper/107:55:201
10417995839,12cyclictest0-21swapper/108:05:311
10417995838,14cyclictest0-21swapper/108:34:411
10417995837,14cyclictest0-21swapper/107:42:351
10417995830,14cyclictest0-21swapper/110:30:411
1041799583,49cyclictest0-21swapper/108:20:411
10417995823,8cyclictest1419-21runrttasks05:37:011
10417995823,8cyclictest1419-21runrttasks05:37:011
10412995844,8cyclictest19146-21munin-node09:55:380
10412995843,10cyclictest0-21swapper/007:18:530
10412995840,12cyclictest0-21swapper/007:45:500
1041299583,49cyclictest0-21swapper/008:46:100
300822573,47sleep10-21swapper/106:55:541
300822573,47sleep10-21swapper/106:55:541
10418995719,10cyclictest8040-21needreboot07:15:462
1041799577,43cyclictest0-21swapper/108:55:111
1041799577,43cyclictest0-21swapper/108:55:111
10417995738,13cyclictest0-21swapper/108:45:291
10417995738,13cyclictest0-21swapper/107:16:081
10417995738,12cyclictest0-21swapper/110:00:201
10412995742,10cyclictest0-21swapper/010:25:110
10412995742,10cyclictest0-21swapper/010:04:440
10412995742,10cyclictest0-21swapper/009:01:090
10412995738,12cyclictest0-21swapper/009:05:290
10412995721,30cyclictest20040-21munin-node09:10:270
323472566,43sleep20-21swapper/209:26:572
222452563,12sleep00-21swapper/006:40:420
140432564,10sleep00-21swapper/008:11:280
140432564,10sleep00-21swapper/008:11:280
10417995640,11cyclictest0-21swapper/107:55:531
10417995638,12cyclictest0-21swapper/110:13:521
10417995638,12cyclictest0-21swapper/109:13:501
10417995637,12cyclictest0-21swapper/107:37:411
10417995636,13cyclictest0-21swapper/110:15:301
10417995636,13cyclictest0-21swapper/110:15:301
10417995636,13cyclictest0-21swapper/108:27:201
10417995636,13cyclictest0-21swapper/108:11:571
10417995636,13cyclictest0-21swapper/108:11:571
10417995625,13cyclictest0-21swapper/109:15:451
10412995641,10cyclictest0-21swapper/009:30:440
10412995638,12cyclictest0-21swapper/006:15:530
10412995637,13cyclictest0-21swapper/009:25:480
293742552,9sleep00-21swapper/009:23:250
248599550,6rtkit-daemon0-21swapper/305:14:302
248599550,5rtkit-daemon2484-21rtkit-daemon10:19:182
248599550,5rtkit-daemon2484-21rtkit-daemon10:19:182
1041799555,43cyclictest12208-21df06:20:381
10417995539,11cyclictest0-21swapper/110:20:471
10417995538,12cyclictest0-21swapper/107:30:371
10417995537,13cyclictest0-21swapper/108:41:431
1041799553,47cyclictest0-21swapper/109:01:361
10417995526,12cyclictest0-21swapper/109:22:391
10412995540,10cyclictest0-21swapper/006:30:580
10412995527,12cyclictest0-21swapper/008:07:370
73542543,45sleep10-21swapper/109:39:021
73542543,45sleep10-21swapper/109:39:021
1041999545,30cyclictest0-21swapper/306:20:473
1041999545,30cyclictest0-21swapper/305:20:553
10417995436,12cyclictest0-21swapper/109:54:071
10417995436,12cyclictest0-21swapper/108:00:221
1041799543,46cyclictest0-21swapper/109:55:171
1041799543,45cyclictest0-21swapper/110:05:281
1041799543,45cyclictest0-21swapper/107:13:281
1041299544,42cyclictest0-21swapper/010:10:300
10412995436,12cyclictest0-21swapper/007:23:480
10412995434,13cyclictest0-21swapper/007:30:410
248599530,5rtkit-daemon2484-21rtkit-daemon06:10:582
248599530,5rtkit-daemon2484-21rtkit-daemon05:20:302
248599530,4rtkit-daemon2484-21rtkit-daemon06:30:422
108732535,41sleep00-21swapper/010:30:450
1041999534,30cyclictest0-21swapper/305:45:533
1041999534,28cyclictest0-21swapper/306:25:353
1041899533,34cyclictest0-21swapper/208:41:122
10417995338,9cyclictest10840-21smartctl08:55:351
10417995338,9cyclictest10840-21smartctl08:55:351
10417995337,9cyclictest30290-21python08:35:491
10417995336,12cyclictest0-21swapper/110:35:251
1041799533,45cyclictest0-21swapper/105:24:381
10412995339,9cyclictest11782-21munin-node06:20:500
10412995338,9cyclictest23031-21hwlatdetect08:25:400
10412995333,12cyclictest0-21swapper/008:30:190
317812523,7sleep131852-21if_eth007:00:421
28292522,42sleep00-21swapper/007:06:170
274402522,44sleep20-21swapper/208:31:222
248599520,5rtkit-daemon2484-21rtkit-daemon07:25:482
233292522,43sleep00-21swapper/007:38:310
173232525,40sleep20-21swapper/208:16:102
10419995218,14cyclictest0-21swapper/306:30:353
1041799525,40cyclictest4029-21ssh09:34:071
10417995236,11cyclictest0-21swapper/106:30:511
10417995235,12cyclictest0-21swapper/110:25:561
1041799523,43cyclictest0-21swapper/106:25:521
1041799523,42cyclictest11930-21diskstats09:45:321
10412995234,12cyclictest0-21swapper/007:40:400
10412995225,12cyclictest0-21swapper/008:15:480
248599510,5rtkit-daemon2484-21rtkit-daemon05:42:442
248599510,4rtkit-daemon2484-21rtkit-daemon09:05:362
248599510,4rtkit-daemon2484-21rtkit-daemon06:25:352
141652512,9sleep00-21swapper/006:25:340
1041999514,28cyclictest0-21swapper/305:25:473
10417995132,14cyclictest0-21swapper/106:49:521
1041799513,43cyclictest0-21swapper/106:14:131
1041799513,43cyclictest0-21swapper/106:05:541
1041799513,42cyclictest0-21swapper/106:15:491
1041799513,42cyclictest0-21swapper/105:40:541
10412995131,13cyclictest0-21swapper/006:55:480
10412995131,13cyclictest0-21swapper/006:55:480
1041299513,43cyclictest0-21swapper/005:45:450
1041299513,12cyclictest0-21swapper/008:00:290
66212502,42sleep00-21swapper/006:08:330
248599500,4rtkit-daemon2484-21rtkit-daemon05:18:002
17462502,41sleep20-21swapper/205:59:042
104922500,6sleep20-21swapper/209:43:092
1041899505,27cyclictest0-21swapper/205:50:472
1041899504,29cyclictest0-21swapper/209:45:272
1041899504,29cyclictest0-21swapper/207:20:392
1041799505,27cyclictest0-21swapper/107:46:581
10417995037,9cyclictest20190-21aten_r1power_cu05:30:351
1041799502,26cyclictest0-21swapper/106:50:401
1041299504,42cyclictest0-21swapper/007:26:050
1041299504,40cyclictest0-21swapper/010:35:360
1041299504,40cyclictest0-21swapper/006:10:350
1041299503,42cyclictest0-21swapper/006:45:440
10412995027,11cyclictest0-21swapper/005:10:400
10412995019,26cyclictest3116-21http_loadtime06:00:430
30912492,41sleep10-21swapper/107:09:451
10419994933,10cyclictest7876-21gltestperf06:10:423
10418994916,20cyclictest0-21swapper/207:00:482
10417994934,10cyclictest0-21swapper/106:00:461
10417994932,12cyclictest0-21swapper/105:50:551
10412994931,12cyclictest0-21swapper/005:35:360
10412994931,12cyclictest0-21swapper/005:35:360
1041299493,41cyclictest0-21swapper/005:40:420
220352482,39sleep00-21swapper/005:31:330
15052483,39sleep10-21swapper/105:56:001
1041899484,27cyclictest0-21swapper/208:37:212
1041899484,23cyclictest17753-21yum-updatesd-he09:55:232
1041799485,36cyclictest0-21swapper/106:40:321
1041799484,39cyclictest0-21swapper/105:15:541
1041799482,41cyclictest0-21swapper/105:25:501
10412994825,11cyclictest0-21swapper/005:25:390
1041899473,27cyclictest0-21swapper/208:45:452
1041799473,40cyclictest0-21swapper/105:15:251
1041299474,39cyclictest0-21swapper/005:15:520
1041299473,38cyclictest0-21swapper/005:55:400
103502474,6sleep00-21swapper/005:10:040
40462462,9sleep20-21swapper/206:01:172
293242462,38sleep10-21swapper/105:48:181
281152462,9sleep00-21swapper/006:53:360
1041899464,26cyclictest0-21swapper/206:05:532
1041299463,38cyclictest0-21swapper/005:25:260
10412994622,19cyclictest0-21swapper/007:00:290
1041899454,36cyclictest0-21swapper/206:39:512
10412994515,12cyclictest0-21swapper/006:35:330
102872454,6sleep10-21swapper/105:09:171
221342442,36sleep20-21swapper/205:32:522
1041899444,25cyclictest0-21swapper/206:54:542
1041899444,12cyclictest0-21swapper/205:35:562
1041899444,12cyclictest0-21swapper/205:35:562
95642439,25sleep30-21swapper/305:05:493
1041899434,12cyclictest0-21swapper/206:55:332
1041899434,12cyclictest0-21swapper/206:55:332
101092424,7sleep20-21swapper/205:06:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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