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2026-03-24 - 02:42
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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 100 highest latencies:
System rackfslot7.osadl.org (updated Mon Mar 23, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
217760199780,78cyclictest2294895-21ntpq10:40:197
2177601997535,19cyclictest2208220-21/usr/sbin/munin08:05:247
2177596997537,19cyclictest101850irq/42-eno2-TxRx-311:45:162
2177601997213,20cyclictest2323773-21systemd-run11:35:027
2177601997032,0cyclictest0-21swapper/708:50:017
217760199687,40cyclictest2290206-21taskset10:32:277
2177601996827,38cyclictest8750ktimers/711:41:237
217760199677,39cyclictest236199-21snmpd09:42:527
217760199668,39cyclictest2223910-21taskset08:32:087
217760199657,39cyclictest2288067-21cat10:30:027
2177601996525,0cyclictest0-21swapper/709:13:597
2177601996524,41cyclictest2329582-21awk11:45:147
2177601996425,20cyclictest2258442-21perl09:35:137
2177601996425,19cyclictest0-21swapper/710:48:027
2177601996425,0cyclictest0-21swapper/707:34:287
2177601996424,0cyclictest0-21swapper/711:14:047
2177601996324,19cyclictest0-21swapper/712:07:177
2177601996324,0cyclictest0-21swapper/707:17:387
2177601996224,18cyclictest2177593-21cyclictest11:16:077
2177601996223,19cyclictest0-21swapper/710:00:347
2177601996123,38cyclictest2192697-21cat07:35:217
217760099602,19cyclictest0-21swapper/609:30:166
2177601995921,38cyclictest0-21swapper/709:16:507
2177601995717,39cyclictest0-21swapper/708:28:517
2177597995717,39cyclictest2229897-21kworker/3:0+events_power_efficient09:25:163
2177601995638,18cyclictest0-21swapper/711:55:187
2177601995618,38cyclictest85550irq/34-eno1-TxRx-009:00:017
2177601995618,38cyclictest101550irq/39-eno2-TxRx-008:20:047
2177601995617,39cyclictest0-21swapper/711:52:037
2177601995617,39cyclictest0-21swapper/710:20:277
2177601995617,39cyclictest0-21swapper/708:11:367
2177601995516,39cyclictest0-21swapper/707:10:297
2177601995436,18cyclictest85550irq/34-eno1-TxRx-010:52:187
2177601995436,18cyclictest101550irq/39-eno2-TxRx-012:15:007
2177601995436,18cyclictest101550irq/39-eno2-TxRx-008:15:237
2177601995419,35cyclictest0-21swapper/710:38:587
2177601995416,38cyclictest101550irq/39-eno2-TxRx-008:35:117
2177601995416,38cyclictest101550irq/39-eno2-TxRx-008:01:137
2177601995415,39cyclictest0-21swapper/710:13:117
2177601995415,39cyclictest0-21swapper/709:21:397
2177601995415,19cyclictest236199-21snmpd08:44:497
2177601995414,39cyclictest0-21swapper/712:35:087
2177601995319,34cyclictest0-21swapper/712:23:567
2177601995319,34cyclictest0-21swapper/708:59:207
2177601995319,15cyclictest0-21swapper/712:27:277
2177601995319,15cyclictest0-21swapper/711:26:257
2177601995319,15cyclictest0-21swapper/710:05:457
2177601995319,14cyclictest0-21swapper/712:30:497
2177601995315,19cyclictest2325104-21ntpq11:35:197
2177601995314,39cyclictest0-21swapper/709:51:557
2177601995314,39cyclictest0-21swapper/708:46:527
2177601995314,39cyclictest0-21swapper/707:56:497
2177601995314,39cyclictest0-21swapper/707:46:257
2177601995313,39cyclictest0-21swapper/710:15:147
2177597995313,39cyclictest0-21swapper/309:45:153
2177597995313,39cyclictest0-21swapper/309:45:153
2177601995219,33cyclictest0-21swapper/707:10:027
2177601995219,14cyclictest0-21swapper/709:05:347
2177601995213,39cyclictest0-21swapper/712:01:557
2177601995213,39cyclictest0-21swapper/711:01:127
2177601995213,19cyclictest0-21swapper/710:57:057
2177601995133,18cyclictest0-21swapper/712:16:577
2177601995113,38cyclictest85550irq/34-eno1-TxRx-009:55:387
2177601995113,38cyclictest85550irq/34-eno1-TxRx-009:55:377
2177601995113,0cyclictest101550irq/39-eno2-TxRx-009:49:087
2177601995113,0cyclictest101550irq/39-eno2-TxRx-009:49:077
2177601995112,39cyclictest85550irq/34-eno1-TxRx-007:25:587
2177601995112,39cyclictest0-21swapper/711:23:087
2177601995112,39cyclictest0-21swapper/707:53:207
2177601995112,39cyclictest0-21swapper/707:22:537
2177597995111,39cyclictest0-21swapper/312:15:163
2177596995131,20cyclictest43-21ksoftirqd/211:00:152
2177596995113,19cyclictest0-21swapper/212:00:172
2177601995032,18cyclictest0-21swapper/711:05:057
2177601994911,38cyclictest101550irq/39-eno2-TxRx-009:26:447
2177601994910,39cyclictest0-21swapper/707:42:007
217760099472,19cyclictest0-21swapper/609:20:166
2177601994628,18cyclictest0-21swapper/709:32:537
217760099446,19cyclictest0-21swapper/609:15:166
217760099435,19cyclictest0-21swapper/611:15:166
2177597994325,18cyclictest0-21swapper/311:35:163
217760099424,19cyclictest0-21swapper/609:10:156
2177595994223,19cyclictest0-21swapper/108:55:161
217760099413,19cyclictest0-21swapper/611:25:166
217759799402,19cyclictest0-21swapper/311:50:173
217760099380,37cyclictest0-21swapper/612:10:156
217760099380,19cyclictest0-21swapper/608:25:166
217759999370,17cyclictest0-21swapper/510:55:165
217759799370,18cyclictest0-21swapper/311:30:133
2177596993718,0cyclictest0-21swapper/209:35:162
2177600993617,19cyclictest781ktimers/611:45:176
217759799360,17cyclictest0-21swapper/308:30:153
217760099359,20cyclictest0-21swapper/612:15:166
217760099350,34cyclictest0-21swapper/607:35:176
217760099350,16cyclictest0-21swapper/612:05:136
217760099350,15cyclictest0-21swapper/607:45:166
217759999350,16cyclictest0-21swapper/507:40:165
217759999350,15cyclictest0-21swapper/507:55:175
2177598993534,1cyclictest61-21ksoftirqd/408:25:154
217759899350,35cyclictest0-21swapper/412:35:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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