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2026-07-01 - 00:34
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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 rack0slot2.osadl.org (updated Tue Jun 30, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38265652670,1sleep73826566-21latency_hist07:39:077
3764509995853,4cyclictest4001589-21kworker/u16:3+flush-8:009:24:075
376401425848,7sleep40-21swapper/407:06:204
376407125545,7sleep50-21swapper/507:07:095
376392125217,30sleep70-21swapper/707:05:037
3764509994038,2cyclictest4001589-21kworker/u16:3+events_unbound11:53:025
3764509994038,2cyclictest197200-21kworker/u16:0+events_unbound12:03:065
3764509994037,2cyclictest3865537-21kworker/u16:0+flush-8:008:44:075
3764509993937,2cyclictest4099636-21kworker/u16:0+events_unbound09:51:115
3764513993734,2cyclictest4099636-21kworker/u16:0+flush-8:010:04:076
3764509993634,2cyclictest50475-21kworker/u16:0+events_unbound10:46:025
3764507993532,2cyclictest4001589-21kworker/u16:3+flush-8:010:34:364
376418523524,8sleep60-21swapper/607:08:476
3764513993432,2cyclictest4001589-21kworker/u16:3+flush-8:009:29:226
3764509993433,1cyclictest3894368-21kworker/u16:1+events_unbound09:26:105
3764509993432,2cyclictest4001589-21kworker/u16:3+events_unbound10:31:035
3764507993432,2cyclictest4026449-21kworker/u16:0+events_unbound09:35:114
3764513993331,2cyclictest4026449-21kworker/u16:0+flush-8:009:39:076
3764509993331,2cyclictest4027349-21kworker/u16:4+events_unbound10:04:095
3764509993331,2cyclictest4027349-21kworker/u16:4+events_unbound09:33:105
3764509993331,2cyclictest3982425-21kworker/u16:2+events_unbound09:13:025
3764509993330,3cyclictest4001589-21kworker/u16:3+flush-8:010:39:025
3764507993331,2cyclictest211881-21kworker/u16:5+events_unbound12:36:174
3764513993230,2cyclictest4001589-21kworker/u16:3+events_unbound12:34:356
3764513993229,3cyclictest4001589-21kworker/u16:3+flush-8:011:49:456
3764509993230,2cyclictest113459-21kworker/u16:2+events_unbound11:21:105
3764507993230,2cyclictest87111-21kworker/u16:1+events_unbound11:36:234
3764507993230,2cyclictest4001589-21kworker/u16:3+flush-8:010:54:464
3764507993230,2cyclictest4001589-21kworker/u16:3+events_unbound11:01:184
3764507993230,2cyclictest4001589-21kworker/u16:3+events_unbound11:01:184
3764507993230,2cyclictest113459-21kworker/u16:2+events_unbound11:22:174
3764507993229,2cyclictest4001589-21kworker/u16:3+events_unbound10:49:114
3764507993129,2cyclictest4001589-21kworker/u16:3+flush-8:009:15:494
3764507993129,2cyclictest197200-21kworker/u16:0+events_unbound11:51:224
3764515993028,1cyclictest0-21swapper/712:04:307
3764509993028,2cyclictest4148491-21kworker/u16:1+events_unbound10:17:305
3764509993028,2cyclictest4059859-21kworker/u16:2+events_unbound09:45:115
3764509993028,2cyclictest4001589-21kworker/u16:3+events_unbound11:58:185
3764509993028,2cyclictest211881-21kworker/u16:5+events_unbound12:33:065
3764509993028,2cyclictest138557-21kworker/u16:4+events_unbound11:31:105
3764507993028,2cyclictest50475-21kworker/u16:0+flush-8:011:04:494
3764507993027,2cyclictest211881-21kworker/u16:5+flush-8:012:09:174
3764515992925,3cyclictest77378-21latency_hist10:59:067
3764509992927,2cyclictest211881-21kworker/u16:5+events_unbound12:27:315
3764509992927,2cyclictest211881-21kworker/u16:5+events_unbound12:27:315
3764509992927,2cyclictest211881-21kworker/u16:5+events_unbound12:06:585
3764509992927,2cyclictest16256-21kworker/u16:4+events_unbound10:51:185
3764507992927,2cyclictest4172921-21kworker/u16:2+events_unbound10:39:114
3764507992927,2cyclictest3855686-21kworker/u16:1+flush-8:008:04:034
3764507992927,2cyclictest211881-21kworker/u16:5+events_unbound12:04:204
3764507992926,2cyclictest4001589-21kworker/u16:3+events_unbound09:09:184
3764509992826,2cyclictest87111-21kworker/u16:1+events_unbound10:59:505
3764509992826,2cyclictest87111-21kworker/u16:1+events_unbound10:59:505
3764509992826,2cyclictest50475-21kworker/u16:0+events_unbound11:11:185
3764509992826,2cyclictest4027349-21kworker/u16:4+events_unbound10:00:475
3764509992826,2cyclictest4027349-21kworker/u16:4+events_unbound09:42:355
3764509992826,2cyclictest4001589-21kworker/u16:3+events_unbound11:28:425
3764509992826,2cyclictest3735218-21kworker/u16:0+flush-8:007:29:345
3764509992826,2cyclictest197200-21kworker/u16:0+events_unbound12:15:055
3764509992826,2cyclictest138557-21kworker/u16:4+events_unbound11:48:465
3764509992826,2cyclictest138557-21kworker/u16:4+events_unbound11:48:465
3764507992826,2cyclictest4148491-21kworker/u16:1+events_unbound10:18:214
3764507992826,2cyclictest4027349-21kworker/u16:4+events_unbound09:59:104
3764507992826,2cyclictest4027349-21kworker/u16:4+events_unbound09:26:184
3764507992825,2cyclictest4027349-21kworker/u16:4+events_unbound09:29:104
3764515992722,4cyclictest4099603-21perf09:49:077
3764509992725,2cyclictest87111-21kworker/u16:1+events_unbound11:36:415
3764509992725,2cyclictest4001589-21kworker/u16:3+events_unbound10:54:385
3764509992725,2cyclictest197200-21kworker/u16:0+events_unbound12:21:425
3764509992725,2cyclictest113459-21kworker/u16:2+flush-8:011:14:515
3764507992725,2cyclictest4001589-21kworker/u16:3+events_unbound10:48:074
3764507992725,2cyclictest197200-21kworker/u16:0+events_unbound12:21:224
3764507992725,2cyclictest197200-21kworker/u16:0+events_unbound11:56:024
41421932260,1sleep60-21swapper/610:04:266
3764515992625,0cyclictest0-21swapper/710:53:007
3764515992625,0cyclictest0-21swapper/710:25:137
3764515992621,4cyclictest3952868-21latency_hist08:44:087
3764509992625,1cyclictest197200-21kworker/u16:0+events_unbound12:36:115
3764509992624,2cyclictest4148491-21kworker/u16:1+events_unbound10:11:035
3764509992623,2cyclictest4001589-21kworker/u16:3+events_unbound10:41:185
3764507992624,2cyclictest4027349-21kworker/u16:4+events_unbound09:53:434
3764507992624,2cyclictest4001589-21kworker/u16:3+events_unbound11:30:314
3764507992624,2cyclictest4001589-21kworker/u16:3+events_unbound11:17:144
3764515992524,0cyclictest0-21swapper/707:46:307
3764513992523,2cyclictest4027349-21kworker/u16:4+events_unbound09:49:316
3764509992523,2cyclictest4148491-21kworker/u16:1+events_unbound10:24:105
3764509992523,2cyclictest4148491-21kworker/u16:1+events_unbound10:21:175
3764509992523,2cyclictest4148491-21kworker/u16:1+events_unbound10:21:175
3764507992523,2cyclictest87111-21kworker/u16:1+events_unbound11:26:314
3764507992523,2cyclictest4172921-21kworker/u16:2+events_unbound10:32:154
3764507992523,2cyclictest4075069-21kworker/u16:5+events_unbound09:40:304
3764507992523,2cyclictest4001589-21kworker/u16:3+flush-8:011:59:544
3764507992523,2cyclictest4001589-21kworker/u16:3+events_unbound10:07:184
3764515992419,4cyclictest4111821-21latency_hist09:54:077
376451599240,22cyclictest321758-21latency_hist12:39:077
3764509992423,1cyclictest50475-21kworker/u16:0+events_unbound11:05:465
3764509992422,2cyclictest4027349-21kworker/u16:4+events_unbound09:57:595
3764509992422,2cyclictest4026449-21kworker/u16:0+events_unbound09:34:585
3764509992422,2cyclictest3982425-21kworker/u16:2+events_unbound09:16:145
3764509992422,2cyclictest3865537-21kworker/u16:0+events_unbound08:09:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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