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2026-08-15 - 14:16
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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
Characteristics of the 100 highest latencies:
System rack7slot1.osadl.org (updated Sat Aug 15, 2026 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5209211856,57sleep30-21swapper/319:05:063
6931211553,23sleep20-21swapper/219:06:522
7150210650,51sleep10-21swapper/119:09:421
6851210650,51sleep00-21swapper/019:05:500
727799456,23cyclictest0-21swapper/123:26:241
727799453,28cyclictest28772-21stress23:46:371
7277994522,20cyclictest0-21swapper/121:31:541
727799446,22cyclictest28768-21stress21:12:401
727799445,26cyclictest0-21swapper/119:10:221
727799435,26cyclictest0-21swapper/120:35:261
727799435,25cyclictest0-21swapper/120:50:121
7277994320,21cyclictest0-21swapper/122:41:481
7277994320,21cyclictest0-21swapper/122:41:481
7277994320,20cyclictest0-21swapper/123:22:541
7277994320,20cyclictest0-21swapper/123:22:531
7277994320,20cyclictest0-21swapper/123:03:401
727799427,26cyclictest0-21swapper/122:25:301
727799425,24cyclictest0-21swapper/119:50:151
727799425,22cyclictest0-21swapper/100:15:271
727799423,7cyclictest25680-21modprobe19:50:011
727799422,25cyclictest28772-21stress21:50:311
7277994220,19cyclictest0-21swapper/121:41:181
7277994220,19cyclictest0-21swapper/100:21:551
727799416,23cyclictest0-21swapper/119:20:111
727799415,25cyclictest0-21swapper/119:40:251
7277994122,17cyclictest0-21swapper/122:15:171
7277994120,18cyclictest0-21swapper/100:31:081
727799406,27cyclictest0-21swapper/123:55:001
727799403,20cyclictest28772-21stress23:30:211
7277994019,19cyclictest0-21swapper/100:10:261
7277994018,20cyclictest0-21swapper/122:00:361
7277994018,19cyclictest0-21swapper/121:55:341
727699408,24cyclictest0-21swapper/021:05:230
86842395,12sleep20-21swapper/220:22:492
727799396,29cyclictest28772-21stress21:45:351
727799393,33cyclictest28768-21stress23:10:161
727799393,22cyclictest28772-21stress22:10:381
727799393,22cyclictest28772-21stress22:10:371
7279993811,24cyclictest0-21swapper/322:38:153
7278993816,19cyclictest0-21swapper/200:05:362
727799386,28cyclictest28768-21stress00:10:001
727799384,31cyclictest28772-21stress23:37:161
727799383,32cyclictest0-21swapper/121:35:191
727799383,15cyclictest0-21swapper/120:57:461
7277993820,16cyclictest0-21swapper/100:25:181
7277993820,15cyclictest0-21swapper/123:40:081
7277993819,17cyclictest0-21swapper/100:05:001
7277993819,16cyclictest0-21swapper/122:30:281
727699387,25cyclictest0-21swapper/020:48:140
7276993813,22cyclictest0-21swapper/022:16:010
42932384,12sleep30-21swapper/320:13:393
196732384,12sleep30-21swapper/320:47:203
190182384,13sleep30-21swapper/319:34:503
190182384,13sleep30-21swapper/319:34:493
173772384,13sleep30-21swapper/320:41:143
93082374,11sleep30-21swapper/319:13:333
86702375,12sleep00-21swapper/020:22:390
74972375,12sleep20-21swapper/219:10:112
727799376,27cyclictest28772-21stress23:05:311
727799375,22cyclictest0-21swapper/120:25:151
727799374,4cyclictest14450irq/38-xhci_hcd22:05:221
727799374,17cyclictest0-21swapper/122:50:161
727799373,31cyclictest0-21swapper/122:55:151
727799373,31cyclictest0-21swapper/121:15:191
727799373,24cyclictest13282-21latency_hist20:35:001
7277993720,15cyclictest0-21swapper/121:21:081
7277993718,16cyclictest0-21swapper/100:37:341
7277993718,16cyclictest0-21swapper/100:37:341
727699379,23cyclictest0-21swapper/020:40:020
727699378,24cyclictest0-21swapper/021:00:060
241002375,12sleep00-21swapper/020:57:470
220902375,15sleep20-21swapper/220:55:012
7278993615,19cyclictest0-21swapper/222:12:112
7278993615,19cyclictest0-21swapper/222:12:112
727799366,21cyclictest14450irq/38-xhci_hcd23:57:171
727799365,24cyclictest0-21swapper/120:17:061
727799363,3cyclictest28772-21stress23:15:491
727799363,30cyclictest0-21swapper/122:35:301
727799363,30cyclictest0-21swapper/120:05:191
727799363,16cyclictest0-21swapper/121:03:461
727699369,22cyclictest0-21swapper/019:25:060
727699365,24cyclictest0-21swapper/019:55:050
727699365,24cyclictest0-21swapper/019:30:060
727699365,24cyclictest0-21swapper/019:30:050
727699365,16cyclictest0-21swapper/000:30:170
7276993610,20cyclictest0-21swapper/019:38:430
285652365,16sleep20-21swapper/221:08:242
232852365,14sleep00-21swapper/019:43:250
231542365,15sleep20-21swapper/219:41:422
727899357,25cyclictest0-21swapper/223:05:322
727799358,24cyclictest27589-21latency21:05:181
727799358,24cyclictest0-21swapper/120:45:131
727799354,16cyclictest0-21swapper/120:41:091
727799354,13cyclictest0-21swapper/120:24:351
727799353,17cyclictest0-21swapper/120:10:351
727799353,17cyclictest0-21swapper/119:55:131
727799353,14cyclictest0-21swapper/119:34:581
727799353,14cyclictest0-21swapper/119:34:581
727799353,14cyclictest0-21swapper/119:16:431
727699358,21cyclictest0-21swapper/020:05:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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