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2026-01-04 - 16:35
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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 rack3slot0.osadl.org (updated Sun Jan 04, 2026 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284732970,0sleep40-21swapper/410:12:554
275522570,1sleep527551-21systemd-cgroups11:40:255
407125227,9sleep70-21swapper/707:04:417
57652490,0sleep20-21swapper/211:55:122
251142490,1sleep225118-21sshd11:33:262
156362490,1sleep015638-21kworker/u16:011:35:400
429724825,8sleep30-21swapper/307:07:493
325852480,1sleep61-21systemd12:28:326
164612450,0sleep40-21swapper/411:29:114
309692440,0sleep40-21swapper/410:43:304
439124229,9sleep40-21swapper/407:09:024
189952420,0sleep50-21swapper/511:15:515
48612410,0sleep50-21swapper/511:34:335
421724124,13sleep10-21swapper/107:06:431
415624129,8sleep50-21swapper/507:05:515
412824129,8sleep60-21swapper/607:05:286
146492410,0sleep6641ktimersoftd/611:32:186
422724027,9sleep00-21swapper/007:06:500
413323928,8sleep20-21swapper/207:05:322
55102380,0sleep10-21swapper/110:20:291
258572380,1sleep625856-21bash10:15:536
201462370,0sleep40-21swapper/411:19:264
4552992014,4cyclictest41-21ksoftirqd/309:13:193
4552992014,4cyclictest41-21ksoftirqd/309:13:193
4552991915,1cyclictest41-21ksoftirqd/310:41:443
4552991913,3cyclictest41-21ksoftirqd/310:54:353
218192190,0sleep221818-21sshd10:12:132
84692180,1sleep341-21ksoftirqd/312:29:253
455299185,2cyclictest41-21ksoftirqd/311:31:523
455299184,2cyclictest41-21ksoftirqd/310:24:043
4530991812,2cyclictest18194-21systemd10:21:520
4567991713,1cyclictest1-21systemd12:02:585
4567991713,1cyclictest1-21systemd12:02:585
455299174,2cyclictest41-21ksoftirqd/312:08:523
4552991714,3cyclictest41-21ksoftirqd/311:18:163
4552991714,1cyclictest41-21ksoftirqd/309:18:543
4552991713,3cyclictest492-21systemd-journal11:49:233
4552991712,3cyclictest41-21ksoftirqd/311:35:093
455299170,17cyclictest3425-21kworker/3:410:32:113
149492170,0sleep20-21swapper/209:24:322
456799168,3cyclictest1-21systemd11:34:015
4567991610,5cyclictest1-21systemd12:05:485
455999160,15cyclictest11278-21bash12:16:054
455299164,1cyclictest41-21ksoftirqd/310:49:453
455299163,1cyclictest41-21ksoftirqd/312:15:093
4552991615,1cyclictest41-21ksoftirqd/309:47:573
4552991614,2cyclictest41-21ksoftirqd/311:28:123
4552991614,2cyclictest41-21ksoftirqd/309:41:543
4552991614,1cyclictest41-21ksoftirqd/312:36:123
4552991614,1cyclictest41-21ksoftirqd/312:25:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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