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2026-07-18 - 09:16
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Sat Jul 18, 2026 00:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236269991470,1cyclictest0-21swapper/723:30:127
236266998787,0cyclictest0-21swapper/422:53:504
236269998425,59cyclictest0-21swapper/719:35:157
236266997134,18cyclictest243361-21gcc19:20:204
236266996929,39cyclictest0-21swapper/423:07:504
236262996911,39cyclictest364231-21kworker/0:1+events00:05:160
236266996830,19cyclictest0-21swapper/419:19:304
23626699635,39cyclictest0-21swapper/421:16:114
23626699623,19cyclictest0-21swapper/419:13:134
23626699613,19cyclictest0-21swapper/422:36:414
23626699613,0cyclictest0-21swapper/421:32:464
23626699612,19cyclictest0-21swapper/422:17:264
23626699612,19cyclictest0-21swapper/419:52:214
23626599613,39cyclictest316808-21taskset21:35:153
236266996037,0cyclictest383851-21ntpq23:35:204
23626699602,19cyclictest0-21swapper/421:28:344
236266996021,19cyclictest0-21swapper/421:21:464
23626699602,0cyclictest0-21swapper/423:19:264
23626699602,0cyclictest0-21swapper/421:47:144
23626699602,0cyclictest0-21swapper/421:37:264
23626699601,19cyclictest0-21swapper/420:41:024
23626699601,0cyclictest0-21swapper/400:39:384
23626699591,19cyclictest0-21swapper/400:33:014
236266995717,18cyclictest365278-21munin-run23:04:594
23626699570,38cyclictest320005-21ntpq21:40:194
236266995617,0cyclictest262728-21ntpq19:55:224
236266995519,35cyclictest0-21swapper/422:43:144
236266995516,0cyclictest292326-21cat20:50:174
236266995515,19cyclictest790-21in:imuxsock22:00:054
236262995517,38cyclictest171ktimers/020:45:170
236262995516,19cyclictest191rcu_preempt20:10:150
236266995416,19cyclictest277014-21users20:20:244
236266995415,39cyclictest0-21swapper/423:48:104
236266995415,0cyclictest305002-21systemd-run21:15:024
236266995414,39cyclictest0-21swapper/422:45:124
236266995414,39cyclictest0-21swapper/421:06:344
236266995414,19cyclictest397117-21if_eno500:00:184
236266995414,19cyclictest0-21swapper/423:50:064
236266995414,19cyclictest0-21swapper/423:50:054
236266995414,19cyclictest0-21swapper/400:19:184
236266995314,39cyclictest0-21swapper/422:14:344
236266995314,39cyclictest0-21swapper/422:09:304
236266995314,39cyclictest0-21swapper/420:14:424
236262995314,39cyclictest0-21swapper/021:55:170
236268995214,38cyclictest0-21swapper/600:20:166
236266995233,19cyclictest0-21swapper/420:48:424
236266995219,14cyclictest0-21swapper/423:40:024
236266995219,14cyclictest0-21swapper/423:40:024
236266995214,19cyclictest329772-21munin-run22:00:024
236266995213,39cyclictest0-21swapper/423:26:104
236266995213,39cyclictest0-21swapper/422:57:144
236266995213,39cyclictest0-21swapper/400:10:264
236266995213,19cyclictest0-21swapper/420:33:504
236266995213,0cyclictest0-21swapper/400:05:014
236262995213,20cyclictest0-21swapper/021:20:140
236266995112,19cyclictest0-21swapper/420:03:584
236266995112,0cyclictest0-21swapper/422:20:144
236266995111,19cyclictest0-21swapper/419:44:134
236262995112,39cyclictest0-21swapper/020:50:170
236267995012,19cyclictest0-21swapper/519:15:185
236266995032,18cyclictest0-21swapper/423:32:074
236266995031,19cyclictest0-21swapper/422:25:054
236266995029,21cyclictest0-21swapper/422:32:584
236266995011,0cyclictest0-21swapper/423:10:134
236266995011,0cyclictest0-21swapper/400:24:144
236265995012,19cyclictest0-21swapper/300:30:153
23626599500,1cyclictest0-21swapper/323:30:123
236264995012,19cyclictest0-21swapper/222:30:152
236268994911,19cyclictest0-21swapper/619:50:166
23626699499,39cyclictest0-21swapper/421:03:564
236266994931,18cyclictest0-21swapper/423:55:314
236266994931,18cyclictest0-21swapper/421:51:414
236266994931,18cyclictest0-21swapper/420:39:324
236266994930,19cyclictest0-21swapper/423:20:254
236266994930,19cyclictest0-21swapper/419:34:194
236266994928,20cyclictest0-21swapper/420:25:114
236266994910,39cyclictest0-21swapper/420:05:484
236266994910,20cyclictest295374-21collect220:55:204
236262994911,19cyclictest0-21swapper/020:40:150
236262994911,19cyclictest0-21swapper/020:20:160
23626699489,39cyclictest0-21swapper/420:17:114
23626699489,39cyclictest0-21swapper/419:48:484
23626699489,0cyclictest0-21swapper/419:35:024
23626699489,0cyclictest0-21swapper/419:25:184
23626699489,0cyclictest0-21swapper/419:25:174
23626599489,39cyclictest0-21swapper/319:30:163
236264994810,19cyclictest0-21swapper/221:40:162
236262994810,19cyclictest0-21swapper/022:35:150
23626699478,39cyclictest0-21swapper/400:25:144
23626499479,19cyclictest0-21swapper/222:55:172
236262994728,19cyclictest16-21ksoftirqd/023:20:160
23626599455,39cyclictest501rcuc/321:15:163
23626599446,19cyclictest0-21swapper/323:10:173
236265994425,0cyclictest0-21swapper/322:00:163
23626299445,39cyclictest0-21swapper/022:05:140
236262994426,18cyclictest0-21swapper/000:15:160
236265994241,1cyclictest511ktimers/321:30:153
23626599413,19cyclictest0-21swapper/319:10:153
23626499411,39cyclictest0-21swapper/223:45:132
236268994021,19cyclictest0-21swapper/620:35:176
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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