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2026-06-08 - 21:36

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 Mon Jun 08, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2194991170,9rtkit-daemon0-21swapper/211:10:532
84309910142,13cyclictest0-21swapper/210:25:292
842799964,35cyclictest0-21swapper/009:55:340
842799964,35cyclictest0-21swapper/009:55:340
842799924,26cyclictest0-21swapper/010:22:040
842799914,25cyclictest0-21swapper/010:55:110
842799908,30cyclictest8367-21munin-node10:45:210
842799906,15cyclictest0-21swapper/011:05:190
842799894,34cyclictest0-21swapper/009:20:260
842799894,13cyclictest0-21swapper/010:35:210
842799894,13cyclictest0-21swapper/010:35:210
842799894,13cyclictest0-21swapper/008:35:340
842799894,13cyclictest0-21swapper/008:35:340
842799893,34cyclictest0-21swapper/011:10:010
8427998922,12cyclictest0-21swapper/008:40:270
8427998916,12cyclictest0-21swapper/011:40:120
842799884,34cyclictest0-21swapper/011:45:170
842799884,26cyclictest0-21swapper/009:32:140
842799884,25cyclictest0-21swapper/012:21:330
842799883,13cyclictest0-21swapper/011:02:310
842799883,13cyclictest0-21swapper/009:28:010
842799874,34cyclictest0-21swapper/009:15:160
842799874,25cyclictest0-21swapper/010:05:320
842799874,24cyclictest0-21swapper/011:15:300
842799874,24cyclictest0-21swapper/011:15:300
842799874,11cyclictest0-21swapper/010:25:150
8427998725,12cyclictest0-21swapper/010:10:170
8427998725,12cyclictest0-21swapper/009:10:340
8427998725,12cyclictest0-21swapper/009:10:340
8427998720,9cyclictest1-21systemd07:30:190
8427998719,12cyclictest0-21swapper/012:25:260
842799864,36cyclictest0-21swapper/012:16:420
842799864,33cyclictest0-21swapper/010:15:220
842799864,32cyclictest0-21swapper/010:00:210
842799854,34cyclictest0-21swapper/011:50:300
842799854,32cyclictest0-21swapper/008:15:260
842799854,31cyclictest0-21swapper/011:35:420
842799853,34cyclictest0-21swapper/008:55:320
8427998521,13cyclictest0-21swapper/010:50:240
842799844,32cyclictest0-21swapper/011:55:100
842799844,32cyclictest0-21swapper/007:20:370
842799844,31cyclictest0-21swapper/007:15:210
842799843,34cyclictest0-21swapper/012:00:090
8427998415,12cyclictest0-21swapper/011:28:060
842799834,72cyclictest0-21swapper/007:55:360
842799834,35cyclictest0-21swapper/011:22:160
842799834,33cyclictest0-21swapper/012:05:090
842799834,31cyclictest0-21swapper/009:36:210
842799834,12cyclictest0-21swapper/008:14:160
8427998322,8cyclictest3496-21munin-node09:50:240
8427998322,8cyclictest3496-21munin-node09:50:240
842799825,22cyclictest0-21swapper/009:05:150
842799814,22cyclictest0-21swapper/011:34:060
842799813,32cyclictest0-21swapper/008:20:160
8427998123,12cyclictest0-21swapper/008:45:340
842799804,33cyclictest0-21swapper/008:30:340
842799804,24cyclictest0-21swapper/012:14:360
842799803,32cyclictest0-21swapper/010:40:230
842799803,32cyclictest0-21swapper/010:30:110
842799794,32cyclictest0-21swapper/007:13:190
842799794,32cyclictest0-21swapper/007:13:190
842799793,33cyclictest0-21swapper/009:04:470
842799793,33cyclictest0-21swapper/008:50:350
842799793,32cyclictest0-21swapper/009:45:180
842799784,12cyclictest0-21swapper/009:42:280
842799764,32cyclictest0-21swapper/008:00:230
8431997534,24cyclictest15517-21cpuspeed_turbos10:55:133
8431997342,12cyclictest0-21swapper/312:25:253
8429997216,27cyclictest8096-21missed_timers09:55:261
8429997216,27cyclictest8096-21missed_timers09:55:261
842799723,34cyclictest0-21swapper/007:05:390
8429996945,9cyclictest31778-21crond11:19:581
8429996945,9cyclictest31778-21crond11:19:581
8429996944,10cyclictest28554-21unixbench_multi12:00:291
843199657,51cyclictest0-21swapper/312:20:243
843199655,50cyclictest3144-21munin-node11:25:163
843199654,15cyclictest0-21swapper/310:38:463
843199654,15cyclictest0-21swapper/310:38:463
8430996543,13cyclictest0-21swapper/211:40:112
8429996547,12cyclictest0-21swapper/110:20:001
843199645,49cyclictest30923-21users09:40:353
8430996443,13cyclictest0-21swapper/207:40:342
843199636,51cyclictest0-21swapper/312:15:153
843199636,51cyclictest0-21swapper/308:55:163
843199635,52cyclictest0-21swapper/310:50:353
843199634,39cyclictest0-21swapper/307:12:473
843199634,39cyclictest0-21swapper/307:12:473
8429996346,11cyclictest0-21swapper/110:53:481
842999634,29cyclictest0-21swapper/107:40:301
8429996320,25cyclictest23886-21df_abs11:55:131
278882633,11sleep10-21swapper/109:36:461
843199624,14cyclictest0-21swapper/307:45:193
843099625,12cyclictest0-21swapper/211:35:322
8429996220,26cyclictest5047-21cpuspeed_turbos09:05:171
8429996218,22cyclictest1002-21sshd08:10:341
843199614,51cyclictest0-21swapper/310:15:143
843199614,51cyclictest0-21swapper/309:55:173
843199614,51cyclictest0-21swapper/309:55:173
843199612,54cyclictest0-21swapper/308:44:533
8430996142,12cyclictest0-21swapper/210:20:222
8430996141,13cyclictest0-21swapper/211:30:262
8430996140,13cyclictest0-21swapper/212:20:122
8429996113,22cyclictest0-21swapper/110:45:111
843199607,47cyclictest0-21swapper/309:16:573
843199606,47cyclictest0-21swapper/309:02:183
843199606,14cyclictest0-21swapper/309:31:103
843199605,49cyclictest0-21swapper/309:11:313
843199605,49cyclictest0-21swapper/309:11:313
843199604,50cyclictest0-21swapper/311:30:293
843199604,49cyclictest8044-21latency_hist09:10:033
843199604,14cyclictest0-21swapper/309:21:193
843199604,13cyclictest0-21swapper/311:00:193
843199602,52cyclictest0-21swapper/310:28:063
8430996041,12cyclictest0-21swapper/212:06:002
842999606,28cyclictest0-21swapper/110:40:161
842999605,30cyclictest0-21swapper/111:30:341
842999604,48cyclictest0-21swapper/109:32:421
842999604,38cyclictest19757-21ssh11:49:561
8429996024,13cyclictest0-21swapper/109:40:351
219499600,9rtkit-daemon0-21swapper/210:53:462
166682603,50sleep20-21swapper/210:09:452
843199596,14cyclictest0-21swapper/309:38:573
843199594,49cyclictest0-21swapper/312:12:113
843199594,13cyclictest0-21swapper/309:49:223
842999595,30cyclictest0-21swapper/111:00:231
842999595,29cyclictest0-21swapper/111:20:301
842999594,28cyclictest0-21swapper/109:48:221
8429995922,8cyclictest1227-21runrttasks11:53:201
8429995913,27cyclictest0-21swapper/109:01:491
843199584,14cyclictest0-21swapper/310:09:083
8431995813,37cyclictest0-21swapper/311:20:283
843099584,48cyclictest0-21swapper/211:15:582
843099584,48cyclictest0-21swapper/211:15:582
843099584,13cyclictest0-21swapper/209:27:262
842999585,29cyclictest0-21swapper/112:08:381
842999585,28cyclictest0-21swapper/112:19:281
842999585,28cyclictest0-21swapper/109:13:141
842999585,28cyclictest0-21swapper/109:13:141
842999585,28cyclictest0-21swapper/107:10:221
842999585,28cyclictest0-21swapper/107:10:221
842999585,25cyclictest0-21swapper/110:05:191
842999585,25cyclictest0-21swapper/110:04:551
842999584,33cyclictest0-21swapper/111:37:381
842999584,31cyclictest0-21swapper/111:13:311
842999584,29cyclictest0-21swapper/110:37:361
842999584,29cyclictest0-21swapper/110:37:361
842999584,26cyclictest0-21swapper/112:25:251
842999584,26cyclictest0-21swapper/112:24:211
842999584,25cyclictest0-21swapper/108:33:031
8429995821,13cyclictest0-21swapper/110:55:201
8429995820,14cyclictest0-21swapper/110:13:061
3352582,18sleep30-21swapper/312:08:193
843199576,22cyclictest0-21swapper/310:30:503
843199575,45cyclictest0-21swapper/311:55:253
843199575,31cyclictest0-21swapper/311:08:063
843199574,14cyclictest0-21swapper/310:41:243
843199573,49cyclictest19686-21ssh10:13:263
8431995724,10cyclictest21319-21awk11:50:233
8430995742,10cyclictest0-21swapper/209:55:202
8430995742,10cyclictest0-21swapper/209:55:202
8430995742,10cyclictest0-21swapper/209:31:162
843099573,46cyclictest31210-21ssh09:41:352
842999575,28cyclictest0-21swapper/108:40:411
842999575,28cyclictest0-21swapper/107:35:291
842999575,27cyclictest0-21swapper/110:31:221
842999575,26cyclictest0-21swapper/112:12:471
842999574,29cyclictest0-21swapper/108:55:161
842999574,28cyclictest11775-21cut09:15:131
842999574,27cyclictest0-21swapper/110:23:461
8429995738,13cyclictest0-21swapper/109:25:341
8429995737,12cyclictest5364-21users09:50:351
8429995737,12cyclictest5364-21users09:50:351
8429995721,13cyclictest0-21swapper/111:06:351
219499570,6rtkit-daemon2193-21rtkit-daemon11:40:293
843199564,13cyclictest0-21swapper/308:50:183
843199564,13cyclictest0-21swapper/308:20:153
843199563,11cyclictest0-21swapper/308:30:223
8431995624,15cyclictest0-21swapper/309:50:273
8431995624,15cyclictest0-21swapper/309:50:273
8431995622,16cyclictest0-21swapper/311:35:123
8430995643,9cyclictest0-21swapper/210:48:202
8430995642,9cyclictest0-21swapper/209:15:502
8430995641,10cyclictest0-21swapper/212:19:502
8430995641,10cyclictest0-21swapper/212:02:492
8430995640,10cyclictest0-21swapper/211:05:082
8430995637,13cyclictest0-21swapper/209:20:342
842999569,25cyclictest0-21swapper/108:35:161
842999569,25cyclictest0-21swapper/108:35:161
842999564,29cyclictest0-21swapper/108:05:201
842999564,29cyclictest0-21swapper/107:05:241
842999564,28cyclictest0-21swapper/107:20:361
842999564,24cyclictest0-21swapper/111:27:501
8429995620,14cyclictest0-21swapper/111:41:021
8429995619,10cyclictest0-21swapper/107:30:181
286272563,10sleep10-21swapper/110:25:321
8431995538,11cyclictest16151-21cpuspeed_turbos07:15:223
8431995535,13cyclictest25688-21cut07:35:193
843199553,45cyclictest0-21swapper/307:55:373
8430995540,10cyclictest0-21swapper/211:49:072
8430995540,10cyclictest0-21swapper/210:44:422
8430995539,11cyclictest0-21swapper/209:50:272
8430995539,11cyclictest0-21swapper/209:50:272
8430995536,12cyclictest0-21swapper/211:25:292
843099553,46cyclictest0-21swapper/208:07:462
8429995538,11cyclictest0-21swapper/108:50:141
8429995523,11cyclictest16188-21ssh09:20:201
8429995514,14cyclictest0-21swapper/107:50:311
8429995514,14cyclictest0-21swapper/107:50:311
219499550,4rtkit-daemon2193-21rtkit-daemon11:00:312
103222554,44sleep20-21swapper/209:11:192
103222554,44sleep20-21swapper/209:11:192
843199545,30cyclictest0-21swapper/310:00:133
843199544,29cyclictest0-21swapper/310:20:343
843199544,29cyclictest0-21swapper/307:05:283
843199543,19cyclictest30403-21sed11:15:293
843199543,19cyclictest30403-21sed11:15:293
8431995423,14cyclictest0-21swapper/310:45:303
8431995421,12cyclictest26805-21python11:10:303
843099549,13cyclictest0-21swapper/211:53:242
8430995439,10cyclictest0-21swapper/210:02:162
8430995436,12cyclictest0-21swapper/207:10:262
8430995436,12cyclictest0-21swapper/207:10:262
843099543,44cyclictest1227-21runrttasks12:29:522
843099543,37cyclictest0-21swapper/210:15:422
8430995410,26cyclictest0-21swapper/210:38:552
8430995410,26cyclictest0-21swapper/210:38:552
842999543,28cyclictest0-21swapper/108:15:221
8429995419,12cyclictest0-21swapper/107:18:191
106262543,12sleep10-21swapper/107:02:591
843199536,27cyclictest0-21swapper/307:42:513
843199535,28cyclictest0-21swapper/308:10:173
843199534,29cyclictest0-21swapper/308:05:253
843199534,29cyclictest0-21swapper/307:50:303
843199534,29cyclictest0-21swapper/307:50:303
843199534,28cyclictest0-21swapper/308:35:343
843199534,28cyclictest0-21swapper/308:35:343
843199534,28cyclictest0-21swapper/308:30:053
843199534,26cyclictest17214-21df_abs11:45:133
8431995336,11cyclictest20902-21cpuspeed_turbos07:25:213
8431995319,13cyclictest0-21swapper/309:26:043
8430995338,10cyclictest0-21swapper/211:55:202
843099533,43cyclictest0-21swapper/208:00:212
8430995327,13cyclictest0-21swapper/210:55:452
842999535,26cyclictest0-21swapper/108:20:211
842999534,28cyclictest0-21swapper/107:30:071
842999534,26cyclictest0-21swapper/107:45:371
8429995336,11cyclictest27554-21latency08:45:281
83132533,42sleep00-21swapper/008:05:260
71842533,12sleep10-21swapper/108:05:071
843199524,29cyclictest0-21swapper/312:00:053
8430995238,8cyclictest637-21cut09:45:202
8430995235,10cyclictest437-21head11:20:162
8430995233,12cyclictest0-21swapper/207:00:262
843099523,23cyclictest0-21swapper/210:10:122
189982524,41sleep00-21swapper/008:28:520
16882528,37sleep00-21swapper/007:50:390
16882528,37sleep00-21swapper/007:50:390
8431995131,13cyclictest28165-21grep08:45:373
843099514,39cyclictest0-21swapper/208:50:042
8430995121,14cyclictest0-21swapper/209:35:322
8430995121,13cyclictest0-21swapper/207:35:352
842999514,25cyclictest0-21swapper/108:25:171
19232512,10sleep20-21swapper/207:50:492
19232512,10sleep20-21swapper/207:50:492
843199503,27cyclictest0-21swapper/307:30:183
8430995034,10cyclictest0-21swapper/208:40:312
8430995022,11cyclictest31413-21gltestperf10:30:202
842999504,24cyclictest0-21swapper/107:55:191
842799504,39cyclictest0-21swapper/007:38:540
843199494,27cyclictest0-21swapper/308:00:263
843199494,27cyclictest0-21swapper/307:24:413
843199494,27cyclictest0-21swapper/307:00:213
8430994919,13cyclictest0-21swapper/208:20:262
8430994916,27cyclictest1547-21nscd07:55:352
843199484,26cyclictest0-21swapper/308:15:173
843099485,26cyclictest0-21swapper/207:50:072
843099484,26cyclictest0-21swapper/207:15:302
8430994833,10cyclictest0-21swapper/209:02:182
8430994826,7cyclictest1010-21diskmemload12:10:002
8430994821,10cyclictest6498-21grep09:05:372
842799483,28cyclictest0-21swapper/007:25:350
309772482,9sleep20-21swapper/208:54:142
221472483,38sleep20-21swapper/208:35:192
221472483,38sleep20-21swapper/208:35:192
8430994731,11cyclictest0-21swapper/207:30:182
8430994719,12cyclictest0-21swapper/208:55:202
188062472,9sleep20-21swapper/208:26:202
8427994627,13cyclictest0-21swapper/007:40:240
8427994624,10cyclictest0-21swapper/007:00:390
8430994530,10cyclictest0-21swapper/208:30:312
843099453,36cyclictest0-21swapper/207:20:352
226392452,10sleep20-21swapper/207:29:082
843099443,12cyclictest0-21swapper/208:15:172
8430994424,7cyclictest1124-21snmpd07:07:462
8430994421,9cyclictest9792-21munin-node08:10:352
8427994414,12cyclictest0-21swapper/007:45:180
82622444,6sleep00-21swapper/006:58:270
8429994324,11cyclictest1227-21runrttasks07:00:081
219499410,5rtkit-daemon2193-21rtkit-daemon07:00:023
78342404,29sleep20-21swapper/206:55:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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