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2026-08-16 - 16:11
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack1slot8.osadl.org (updated Sun Aug 16, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2152099410363,25cyclictest5326-21sshd09:18:571
2151999402342,48cyclictest5324-21ssh09:18:570
2152099379299,53cyclictest0-21swapper/107:10:481
214492215194,13sleep10-21swapper/107:09:361
21070211794,15sleep00-21swapper/007:05:510
1606621090,16sleep02151999cyclictest12:36:250
21519991024,66cyclictest0-21swapper/007:10:480
2151999912,6cyclictest13928-21ssh11:34:000
298702860,3sleep0221rcuc/012:02:580
21519998519,14cyclictest0-21swapper/009:34:280
2151999839,67cyclictest0-21swapper/009:13:240
2151999825,29cyclictest0-21swapper/010:57:300
2151999824,29cyclictest0-21swapper/010:37:250
2151999816,27cyclictest0-21swapper/012:32:000
2151999815,28cyclictest0-21swapper/012:05:430
2151999814,29cyclictest0-21swapper/010:41:220
2151999814,28cyclictest0-21swapper/010:05:420
2151999805,28cyclictest0-21swapper/011:38:210
2151999805,28cyclictest0-21swapper/009:22:360
2151999805,28cyclictest0-21swapper/009:22:360
2151999805,27cyclictest0-21swapper/011:51:310
2151999804,29cyclictest0-21swapper/009:36:460
2151999804,28cyclictest0-21swapper/010:18:140
21519998019,13cyclictest0-21swapper/011:22:070
2151999795,28cyclictest0-21swapper/011:42:280
2151999795,28cyclictest0-21swapper/009:51:050
2151999794,28cyclictest0-21swapper/009:55:420
2151999794,27cyclictest0-21swapper/012:20:560
2151999794,27cyclictest0-21swapper/012:20:560
2151999794,27cyclictest0-21swapper/010:54:450
21519997918,14cyclictest0-21swapper/012:18:580
2151999787,23cyclictest0-21swapper/010:03:050
2151999786,23cyclictest0-21swapper/009:45:080
2151999785,62cyclictest0-21swapper/011:14:000
2151999785,28cyclictest0-21swapper/012:10:070
21519997819,14cyclictest0-21swapper/012:25:490
21519997818,14cyclictest0-21swapper/010:22:100
21519997813,18cyclictest0-21swapper/010:30:220
21519997811,17cyclictest0-21swapper/011:55:220
2151999775,27cyclictest0-21swapper/011:47:430
2151999775,26cyclictest0-21swapper/011:07:100
21519997720,6cyclictest8792-21latency_hist11:25:010
21519997718,13cyclictest0-21swapper/009:43:470
21519997716,14cyclictest0-21swapper/010:49:360
21519997714,15cyclictest0-21swapper/009:29:330
2151999764,61cyclictest0-21swapper/009:06:400
21519997612,16cyclictest0-21swapper/011:00:150
2151999755,64cyclictest0-21swapper/010:29:390
21519997512,16cyclictest0-21swapper/011:18:180
2151999724,25cyclictest0-21swapper/008:32:330
21519997224,6cyclictest8250irq/14-pata_sch09:00:150
2151999722,6cyclictest26251-21timerandwakeup07:20:260
2151999716,26cyclictest0-21swapper/008:45:220
2151999715,59cyclictest0-21swapper/008:45:010
2151999715,26cyclictest0-21swapper/008:55:010
2151999715,18cyclictest0-21swapper/007:15:190
21519997120,7cyclictest88850irq/46-eth0-tx-10:10:140
2151999695,29cyclictest0-21swapper/007:35:260
2151999695,25cyclictest0-21swapper/007:30:180
2151999695,16cyclictest0-21swapper/008:55:200
2151999693,6cyclictest16432-21munin-node08:25:230
21519996912,17cyclictest0-21swapper/008:20:250
2151999685,56cyclictest0-21swapper/008:40:010
2151999675,23cyclictest0-21swapper/007:45:180
2151999674,27cyclictest0-21swapper/007:44:540
2151999672,25cyclictest28164-21unixbench_multi07:25:280
21519996716,12cyclictest0-21swapper/008:10:240
21519996713,12cyclictest0-21swapper/007:59:110
2151999666,27cyclictest0-21swapper/008:15:210
2151999665,54cyclictest0-21swapper/008:00:150
2151999655,15cyclictest0-21swapper/007:50:240
2151999647,19cyclictest0-21swapper/008:05:160
228699550,4rtkit-daemon2285-21rtkit-daemon08:07:001
2152099545,17cyclictest0-21swapper/111:41:091
162472532,18sleep116259-21ssh12:37:051
21520995211,34cyclictest0-21swapper/108:00:131
276812518,10sleep10-21swapper/108:55:171
2152099517,38cyclictest0-21swapper/112:25:191
21520995122,24cyclictest0-21swapper/109:23:591
21520995122,24cyclictest0-21swapper/109:23:591
324692508,10sleep10-21swapper/109:09:291
301762506,11sleep10-21swapper/107:31:331
228699500,5rtkit-daemon2285-21rtkit-daemon09:28:411
2152099506,39cyclictest0-21swapper/111:45:191
79612497,10sleep10-21swapper/110:22:441
50602497,10sleep10-21swapper/111:16:231
2152099496,38cyclictest0-21swapper/108:40:211
2152099494,38cyclictest0-21swapper/112:12:451
2152099494,38cyclictest0-21swapper/111:28:481
186992494,11sleep10-21swapper/109:43:051
35132480,4sleep13511-21ssh10:15:151
284742485,10sleep10-21swapper/107:27:341
2152099485,37cyclictest0-21swapper/108:45:281
21520994812,29cyclictest0-21swapper/110:31:591
144572489,10sleep10-21swapper/108:19:531
135882488,11sleep10-21swapper/111:32:491
228699470,4rtkit-daemon2285-21rtkit-daemon09:37:411
2152099476,35cyclictest0-21swapper/109:30:201
2152099475,37cyclictest0-21swapper/110:53:531
21520994734,6cyclictest0-21swapper/108:13:591
21520994710,32cyclictest0-21swapper/111:21:591
319522465,10sleep10-21swapper/111:06:261
2152099469,30cyclictest0-21swapper/110:07:561
2152099467,34cyclictest0-21swapper/108:35:211
2152099466,34cyclictest0-21swapper/108:20:211
2152099464,36cyclictest0-21swapper/111:50:341
78742452,37sleep17877-21ssh12:21:081
78742452,37sleep17877-21ssh12:21:081
296362455,11sleep10-21swapper/112:02:081
2152099455,35cyclictest0-21swapper/110:14:431
21520994524,17cyclictest0-21swapper/111:10:191
21520994516,24cyclictest0-21swapper/111:57:321
268292444,11sleep10-21swapper/108:52:221
2152099448,29cyclictest0-21swapper/112:30:121
2152099447,31cyclictest0-21swapper/109:55:161
2152099447,30cyclictest0-21swapper/108:30:261
2152099447,29cyclictest0-21swapper/112:07:471
2152099446,33cyclictest0-21swapper/110:42:521
2152099446,32cyclictest0-21swapper/110:55:131
2152099446,32cyclictest0-21swapper/108:25:281
2152099446,29cyclictest0-21swapper/107:35:151
2152099444,35cyclictest0-21swapper/112:15:461
2152099444,35cyclictest0-21swapper/107:41:541
2152099444,34cyclictest0-21swapper/107:24:041
21520994429,11cyclictest0-21swapper/107:56:591
21520994416,23cyclictest0-21swapper/111:38:371
228699430,4rtkit-daemon2285-21rtkit-daemon10:02:321
2152099437,29cyclictest0-21swapper/110:45:211
2152099437,29cyclictest0-21swapper/109:50:201
2152099437,28cyclictest0-21swapper/107:45:191
2152099436,32cyclictest0-21swapper/110:36:541
2152099436,31cyclictest0-21swapper/107:50:281
2152099436,30cyclictest0-21swapper/109:00:221
2152099436,29cyclictest0-21swapper/110:25:051
2152099435,33cyclictest0-21swapper/109:47:511
21520994315,23cyclictest0-21swapper/107:17:241
2152099427,28cyclictest0-21swapper/111:00:241
2152099427,28cyclictest0-21swapper/109:10:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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