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2026-05-11 - 21:43
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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 rack0slot5.osadl.org (updated Mon May 11, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4020612995329,522cyclictest0-21swapper/620:59:2112
4020612995329,522cyclictest0-21swapper/620:59:2112
402060099517515,2cyclictest16311-21kworker/3:0+i915-unordered23:12:209
402061699503501,2cyclictest0-21swapper/719:12:2113
40206229949115,60cyclictest106-21ksoftirqd/921:52:2015
40206009949155,435cyclictest0-21swapper/320:37:219
4020600994896,44cyclictest0-21swapper/322:07:209
40206009947817,460cyclictest0-21swapper/321:15:219
4020612994750,60cyclictest79-21ksoftirqd/619:52:2112
402060099473472,1cyclictest56696-21kworker/3:2+i915-unordered00:05:209
402064599472441,31cyclictest0-21swapper/1422:07:206
40206009947216,455cyclictest0-21swapper/319:41:219
402064599471471,0cyclictest0-21swapper/1421:15:216
402063599469468,1cyclictest69750irq/159-i91500:07:203
40206009946922,446cyclictest0-21swapper/321:07:219
40206009946922,446cyclictest0-21swapper/321:07:219
40206229946823,29cyclictest0-21swapper/922:36:2015
40206089946621,28cyclictest0-21swapper/520:21:4311
40206089946519,30cyclictest0-21swapper/520:35:4311
40206089946417,30cyclictest0-21swapper/523:19:0411
40206009946412,58cyclictest0-21swapper/321:22:209
40206169946321,29cyclictest0-21swapper/719:26:2113
402059399463432,31cyclictest0-21swapper/123:22:201
402061299461457,3cyclictest1818-21snmpd22:12:3212
40205899945913,30cyclictest0-21swapper/022:21:200
402065099458456,2cyclictest3995832-21kworker/15:4+i915-unordered19:10:217
4020600994575,60cyclictest52-21ksoftirqd/300:14:209
4020622994537,29cyclictest0-21swapper/923:56:2015
4020622994537,29cyclictest0-21swapper/923:56:2015
402063599451450,1cyclictest69750irq/159-i91523:12:203
4020608994513,30cyclictest0-21swapper/500:00:4211
40206009945110,0cyclictest0-21swapper/319:12:219
4020600994500,443cyclictest4125871-21kworker/3:0+i915-unordered21:24:209
402064299449419,30cyclictest0-21swapper/1321:07:215
402064299449419,30cyclictest0-21swapper/1321:07:215
402063899449447,2cyclictest4036047-21kworker/12:2+i915-unordered19:41:214
402064299448447,0cyclictest0-21swapper/1300:28:445
40206359944826,421cyclictest0-21swapper/1119:47:063
40206089944823,29cyclictest0-21swapper/519:24:0611
402061299447443,3cyclictest1818-21snmpd21:07:3312
402061299447443,3cyclictest1818-21snmpd21:07:3312
4020600994476,439cyclictest0-21swapper/323:22:209
40206459944626,419cyclictest4069725-21sleep20:13:166
4020650994454,29cyclictest0-21swapper/1519:37:217
40206089944522,28cyclictest0-21swapper/521:56:4211
40206089944521,29cyclictest0-21swapper/500:35:4111
40206089944317,29cyclictest0-21swapper/523:04:4211
40206009944324,418cyclictest0-21swapper/320:22:059
4020650994420,29cyclictest0-21swapper/1522:25:207
40206459944226,415cyclictest0-21swapper/1419:40:216
40206229944220,418cyclictest0-21swapper/923:13:4115
40206229944219,420cyclictest0-21swapper/919:53:4215
402058999442438,3cyclictest1818-21snmpd20:03:550
40206229944117,423cyclictest0-21swapper/900:33:4115
40206459944024,415cyclictest0-21swapper/1423:42:206
40206459943919,418cyclictest0-21swapper/1400:22:426
40206359943917,420cyclictest0-21swapper/1123:00:033
402060099439438,0cyclictest0-21swapper/319:36:219
40206459943724,412cyclictest0-21swapper/1421:06:206
40206459943724,412cyclictest0-21swapper/1421:06:206
40206229943720,416cyclictest0-21swapper/922:40:4315
40206129943716,418cyclictest0-21swapper/600:09:0412
40206009943751,0cyclictest4077540-21kworker/3:1+i915-unordered20:24:219
402064599436434,2cyclictest1818-21snmpd23:05:556
40206359943616,419cyclictest0-21swapper/1100:01:443
40206359943514,418cyclictest0-21swapper/1121:46:053
40206229943517,417cyclictest0-21swapper/922:31:4415
40206129943515,419cyclictest0-21swapper/620:36:0412
402064299434433,1cyclictest0-21swapper/1321:54:045
402062299434431,2cyclictest28417-21kworker/u64:0+events_unbound00:07:2015
40206229943411,419cyclictest0-21swapper/922:03:4215
40206199943416,417cyclictest0-21swapper/821:10:0614
402060099434433,1cyclictest0-21swapper/323:00:209
402064299433433,0cyclictest0-21swapper/1323:45:445
40206229943316,417cyclictest0-21swapper/922:56:4415
40206229943315,417cyclictest0-21swapper/922:27:4115
40206229943315,417cyclictest0-21swapper/920:29:0315
40206229943311,421cyclictest0-21swapper/922:48:4115
40206199943318,414cyclictest0-21swapper/820:50:0414
40205939943317,415cyclictest0-21swapper/123:55:201
40205939943317,415cyclictest0-21swapper/123:55:201
40206459943217,414cyclictest0-21swapper/1419:56:216
40206229943213,418cyclictest0-21swapper/921:18:0515
40206199943216,416cyclictest0-21swapper/820:30:0714
40205899943218,413cyclictest0-21swapper/021:27:420
4020622994316,29cyclictest106-21ksoftirqd/923:46:2015
40206229943111,419cyclictest0-21swapper/920:01:4415
40205899943119,411cyclictest0-21swapper/022:25:020
40206509943019,411cyclictest0-21swapper/1519:59:217
40206459943015,414cyclictest0-21swapper/1421:02:206
40206459943015,414cyclictest0-21swapper/1421:02:206
4020622994309,420cyclictest0-21swapper/920:33:4215
40206229943011,418cyclictest0-21swapper/923:09:4115
40206229943011,418cyclictest0-21swapper/920:16:0415
40206229943010,419cyclictest0-21swapper/923:41:0515
40206199943012,417cyclictest0-21swapper/820:27:0514
40206089943015,414cyclictest0-21swapper/520:51:2011
402060099430430,0cyclictest0-21swapper/319:27:219
40206509942917,411cyclictest0-21swapper/1519:54:217
402063599429428,1cyclictest69750irq/159-i91519:41:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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