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2025-12-08 - 07:41
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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 50 highest latencies:
System rackcslot6.osadl.org (updated Mon Dec 08, 2025 00:46:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27002842140120,4sleep50-21swapper/519:05:225
26991122119101,2sleep60-21swapper/619:05:146
2698315211484,3sleep00-21swapper/019:05:000
270114328942,33sleep70-21swapper/719:06:057
2701647998617,37cyclictest0-21swapper/500:08:155
2701607998615,39cyclictest0-21swapper/021:23:150
28807802840,0sleep40-21swapper/422:30:194
2701647998215,37cyclictest0-21swapper/523:33:155
2701647998215,37cyclictest0-21swapper/523:33:155
2701647998116,35cyclictest0-21swapper/520:48:155
2701647998115,37cyclictest0-21swapper/523:43:155
28657762800,0sleep70-21swapper/722:19:407
27795722800,3sleep121-21ksoftirqd/121:10:231
270113928040,13sleep30-21swapper/319:06:003
27825062730,0sleep60-21swapper/621:13:396
2701607997317,36cyclictest0-21swapper/021:58:150
270113827345,14sleep20-21swapper/219:05:592
28957542720,0sleep50-21swapper/522:42:135
2701654997215,36cyclictest0-21swapper/622:23:156
2701647997015,26cyclictest0-21swapper/500:18:155
270123726943,13sleep10-21swapper/119:07:191
270164799689,26cyclictest0-21swapper/521:48:155
2701626996811,28cyclictest28-21ksoftirqd/200:28:152
2701647996514,19cyclictest0-21swapper/520:13:155
2701607996510,22cyclictest0-21swapper/021:33:150
270130626547,12sleep40-21swapper/419:08:184
2701654996416,38cyclictest0-21swapper/622:58:156
30295032610,0sleep40-21swapper/400:29:384
2701654995924,23cyclictest0-21swapper/620:03:156
2701647995716,11cyclictest0-21swapper/523:53:155
2701607994218,21cyclictest0-21swapper/019:13:150
2701626993715,22cyclictest0-21swapper/223:08:152
2701626993715,22cyclictest0-21swapper/222:43:152
270162699369,27cyclictest28-21ksoftirqd/219:38:152
2701626993615,21cyclictest0-21swapper/220:23:152
2701626993610,26cyclictest28-21ksoftirqd/219:48:152
2701647993511,24cyclictest0-21swapper/500:04:595
2701626993514,21cyclictest0-21swapper/223:18:152
2701654993410,24cyclictest0-21swapper/620:56:586
2701647993410,24cyclictest0-21swapper/522:52:595
2701647993410,24cyclictest0-21swapper/519:17:585
2701634993410,24cyclictest0-21swapper/322:33:593
2701626993415,19cyclictest0-21swapper/219:28:152
2701614993410,24cyclictest0-21swapper/120:22:581
270164799339,24cyclictest0-21swapper/521:38:585
270164799339,24cyclictest0-21swapper/521:06:585
270163499339,24cyclictest0-21swapper/322:39:593
270165499328,24cyclictest0-21swapper/621:53:586
270165499327,24cyclictest3014596-21ssh00:15:596
2701607993231,1cyclictest97850irq/166-enp0s3121:25:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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