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2026-04-14 - 20:28
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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 Tue Apr 14, 2026 12:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
398970499133132,0cyclictest0-21swapper/310:50:123
3989704997030,40cyclictest52-21ksoftirqd/311:00:163
3989706996122,19cyclictest0-21swapper/509:14:155
3989706996120,19cyclictest691ktimers/507:40:415
398970699610,59cyclictest4019467-21find08:00:245
3989706996021,39cyclictest0-21swapper/509:36:595
3989706996021,39cyclictest0-21swapper/509:36:595
3989706995919,39cyclictest0-21swapper/511:45:435
3989706995919,39cyclictest0-21swapper/508:16:355
3989706995819,39cyclictest0-21swapper/511:52:215
3989706995737,19cyclictest874-21mta-sts-daemon09:05:275
3989706995737,19cyclictest874-21mta-sts-daemon09:05:275
3989706995719,38cyclictest0-21swapper/512:26:595
3989706995719,38cyclictest0-21swapper/510:03:015
3989706995718,19cyclictest4042244-21munin-run08:45:015
3989708995616,20cyclictest0-21swapper/711:00:157
3989706995637,19cyclictest4036462-21chrt08:34:395
3989706995636,20cyclictest0-21swapper/507:45:155
3989706995554,1cyclictest691ktimers/510:44:295
3989706995537,18cyclictest4074751-21kworker/5:2+mm_percpu_wq11:14:235
3989706995537,18cyclictest3986504-21kworker/5:1+mm_percpu_wq09:44:475
3989706995536,18cyclictest3986504-21kworker/5:1+mm_percpu_wq09:04:285
3989706995519,17cyclictest0-21swapper/508:52:475
398970699550,54cyclictest0-21swapper/511:20:035
398970699550,36cyclictest4153058-21kworker/u32:5+events_unbound12:12:235
3989706995435,19cyclictest4148355-21awk11:55:155
3989706995419,35cyclictest0-21swapper/512:38:455
3989706995419,35cyclictest0-21swapper/512:31:535
3989706995419,35cyclictest0-21swapper/511:37:255
3989706995419,35cyclictest0-21swapper/508:49:275
3989706995419,15cyclictest0-21swapper/512:21:455
3989706995419,15cyclictest0-21swapper/512:16:415
3989706995419,15cyclictest0-21swapper/510:36:155
3989706995419,15cyclictest0-21swapper/510:16:535
3989706995419,15cyclictest0-21swapper/509:49:375
3989706995419,15cyclictest0-21swapper/508:55:375
3989706995416,19cyclictest4068260-21memory09:30:185
3989706995415,39cyclictest0-21swapper/507:32:315
3989706995415,20cyclictest4150335-21kworker/u32:4+events_unbound12:08:115
3989706995414,39cyclictest4059021-21kworker/u32:5+events_unbound09:57:595
3989706995414,39cyclictest0-21swapper/510:24:245
3989706995414,39cyclictest0-21swapper/509:52:195
398970699540,15cyclictest0-21swapper/507:18:495
3989706995334,19cyclictest0-21swapper/508:38:385
3989706995333,19cyclictest0-21swapper/510:25:215
3989706995319,15cyclictest0-21swapper/511:08:375
3989706995315,19cyclictest4102877-21cat10:35:015
3989706995314,39cyclictest4063032-21ntpq09:20:215
3989706995314,39cyclictest0-21swapper/509:16:195
3989706995314,39cyclictest0-21swapper/508:13:455
3989706995314,20cyclictest4118941-21kworker/5:0+mm_percpu_wq12:00:515
3989706995314,19cyclictest0-21swapper/508:24:215
3989706995313,39cyclictest0-21swapper/508:07:175
3989706995313,39cyclictest0-21swapper/507:56:035
3989705995333,19cyclictest0-21swapper/407:20:164
3989708995212,39cyclictest0-21swapper/711:15:177
3989706995233,19cyclictest0-21swapper/507:28:385
3989706995233,19cyclictest0-21swapper/507:11:255
3989706995213,39cyclictest4074751-21kworker/5:2-mm_percpu_wq10:57:075
3989706995213,39cyclictest3990035-21kworker/u32:4+events_unbound07:39:235
3989706995213,39cyclictest319-21ice-ptp-0000:f4:00.010:50:555
3989706995213,39cyclictest0-21swapper/511:42:555
3989706995213,39cyclictest0-21swapper/511:34:175
3989706995213,39cyclictest0-21swapper/511:18:405
3989706995213,39cyclictest0-21swapper/510:12:585
3989706995213,39cyclictest0-21swapper/508:29:335
3989706995213,39cyclictest0-21swapper/507:20:335
3989706995212,39cyclictest0-21swapper/511:29:195
3989701995233,19cyclictest0-21swapper/007:15:130
3989708995113,19cyclictest4156583-21chrt12:10:147
3989706995112,39cyclictest319-21ice-ptp-0000:f4:00.007:51:435
3989706995112,39cyclictest0-21swapper/510:10:015
3989706995112,19cyclictest0-21swapper/510:46:275
3989705995113,19cyclictest0-21swapper/409:25:174
3989704995112,39cyclictest0-21swapper/308:40:163
3989706995011,39cyclictest0-21swapper/511:01:275
3989701995011,19cyclictest0-21swapper/011:10:160
3989707994931,18cyclictest0-21swapper/610:20:156
3989704994910,39cyclictest0-21swapper/312:10:143
398970499489,39cyclictest52-21ksoftirqd/310:05:163
398970199479,19cyclictest0-21swapper/010:10:160
398970299468,19cyclictest0-21swapper/111:25:171
3989701994628,18cyclictest0-21swapper/010:05:160
3989706994527,18cyclictest0-21swapper/509:27:175
398970499447,18cyclictest0-21swapper/310:55:163
398970599435,19cyclictest0-21swapper/407:40:174
398970599402,19cyclictest0-21swapper/410:35:174
398970599391,19cyclictest0-21swapper/412:05:184
398970599391,19cyclictest0-21swapper/408:00:164
398970199390,20cyclictest0-21swapper/007:55:160
398970899370,18cyclictest0-21swapper/708:30:177
398970199370,18cyclictest0-21swapper/011:50:160
3989705993617,18cyclictest236199-21snmpd10:08:354
398970299360,17cyclictest0-21swapper/108:55:171
398970899350,16cyclictest0-21swapper/709:50:167
3989704993535,0cyclictest0-21swapper/311:34:193
398970899347,27cyclictest0-21swapper/708:40:187
3989708993415,19cyclictest0-21swapper/710:50:157
398970899340,15cyclictest0-21swapper/712:00:157
398970899340,15cyclictest0-21swapper/709:05:177
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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