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2026-04-21 - 20:11
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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 Apr 21, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
78746021010,1sleep7787461-21kthreadcore12:29:537
6374972980,1sleep50-21swapper/511:29:485
3471882940,1sleep50-21swapper/509:29:515
6048325848,7sleep50-21swapper/507:05:535
6072825645,8sleep40-21swapper/407:09:214
61046994240,2cyclictest698958-21kworker/u16:1+flush-8:012:04:335
605412403,31sleep70-21swapper/707:06:437
6045523321,8sleep60-21swapper/607:05:306
61053993226,5cyclictest344026-21latency_hist09:29:347
61046993230,2cyclictest112800-21kworker/u16:3+flush-8:008:14:335
61046993229,2cyclictest141474-21kworker/u16:0+events_unbound07:49:485
61046992724,2cyclictest274263-21kworker/u16:1+flush-8:011:09:395
61046992724,2cyclictest274263-21kworker/u16:1+flush-8:011:09:395
61046992624,2cyclictest274263-21kworker/u16:1+events_unbound10:55:025
61053992519,4cyclictest624017-21latency_hist11:24:337
61046992523,2cyclictest274263-21kworker/u16:1+events_unbound10:04:485
61053992419,4cyclictest636171-21latency_hist11:29:337
61053992418,5cyclictest131852-21latency_hist07:44:347
61046992423,1cyclictest782643-21kworker/u16:4+events_unbound12:31:245
61046992419,4cyclictest502128-21kworker/u16:2+flush-8:010:39:335
61046992321,2cyclictest770267-21kworker/u16:0+events_unbound12:35:035
61046992321,2cyclictest698958-21kworker/u16:1+flush-8:012:09:335
61046992321,2cyclictest295639-21kworker/u16:4+events_unbound09:55:025
61042992319,3cyclictest467007-21diskstats10:19:464
6104299230,13cyclictest0-21swapper/411:29:474
61046992220,2cyclictest274263-21kworker/u16:1+flush-8:009:22:545
61053992115,5cyclictest635-21systemd-journal10:24:327
61046992018,2cyclictest633665-21kworker/u16:2+events_unbound11:34:485
61046992018,2cyclictest3566974-21kworker/u16:3+flush-8:007:09:485
61053991913,5cyclictest635-21systemd-journal11:04:327
6105399191,2cyclictest377325-21ssh09:39:577
61053991814,2cyclictest645144-21ssh11:29:577
6105399180,17cyclictest0-21swapper/708:04:577
6105399180,16cyclictest1053-21ntpd08:41:547
61046991817,1cyclictest648500-21kworker/u16:4+events_unbound11:55:335
61046991816,2cyclictest514720-21kworker/u16:5+events_unbound10:50:015
61053991714,2cyclictest1234-21snmpd10:04:177
61053991713,3cyclictest1234-21snmpd07:27:297
61053991711,5cyclictest319576-21latency_hist09:19:337
61048991716,1cyclictest0-21swapper/608:39:176
61048991716,1cyclictest0-21swapper/608:28:016
61048991716,1cyclictest0-21swapper/608:28:016
61048991716,1cyclictest0-21swapper/608:21:526
61048991716,1cyclictest0-21swapper/607:59:216
61048991716,1cyclictest0-21swapper/607:39:536
61048991716,1cyclictest0-21swapper/607:36:496
61048991716,1cyclictest0-21swapper/607:32:436
61048991716,1cyclictest0-21swapper/607:18:236
61048991716,1cyclictest0-21swapper/607:10:126
61048991715,1cyclictest0-21swapper/608:09:356
61048991714,2cyclictest0-21swapper/609:34:476
61042991714,2cyclictest392842-21kworker/u16:2+flush-8:010:09:334
61053991611,4cyclictest635-21systemd-journal11:54:327
6105399160,14cyclictest1234-21snmpd10:19:247
6105399160,14cyclictest0-21swapper/708:29:577
61048991615,1cyclictest0-21swapper/609:05:506
61048991615,1cyclictest0-21swapper/609:05:506
61048991615,1cyclictest0-21swapper/609:02:466
61048991615,1cyclictest0-21swapper/608:58:446
61048991615,1cyclictest0-21swapper/608:52:356
61048991615,1cyclictest0-21swapper/608:45:256
61048991615,1cyclictest0-21swapper/608:40:186
61048991615,1cyclictest0-21swapper/608:31:056
61048991615,1cyclictest0-21swapper/608:15:446
61048991615,1cyclictest0-21swapper/608:05:296
61048991615,1cyclictest0-21swapper/608:04:286
61048991615,1cyclictest0-21swapper/607:52:116
61048991615,1cyclictest0-21swapper/607:47:036
61048991615,1cyclictest0-21swapper/607:27:366
61048991615,1cyclictest0-21swapper/607:20:266
61048991611,4cyclictest0-21swapper/610:14:406
61046991614,2cyclictest392842-21kworker/u16:2+flush-8:010:10:035
61046991614,2cyclictest274263-21kworker/u16:1+flush-8:010:30:125
61046991613,2cyclictest2805975-21kworker/u16:5+events_unbound07:24:475
61042991614,2cyclictest295639-21kworker/u16:4+flush-8:009:55:374
61042991613,2cyclictest755465-21kworker/u16:3+flush-8:012:19:584
6105399159,5cyclictest6382-21gvfs-afc-volume07:09:547
61046991513,2cyclictest274263-21kworker/u16:1+flush-8:009:00:025
61046991511,3cyclictest112800-21kworker/u16:3+events_unbound08:14:475
6104699150,14cyclictest734781-21perl12:09:465
6104299150,14cyclictest0-21swapper/407:24:524
61053991411,2cyclictest1234-21snmpd11:36:117
61053991411,2cyclictest1234-21snmpd08:09:517
61053991410,3cyclictest6514-21gmain12:09:467
6105399140,1cyclictest0-21swapper/710:04:577
61048991413,1cyclictest0-21swapper/611:32:146
61048991413,1cyclictest0-21swapper/609:55:266
6104899140,7cyclictest0-21swapper/612:34:506
6104899140,14cyclictest0-21swapper/612:31:036
6104899140,14cyclictest0-21swapper/612:09:556
6104899140,14cyclictest0-21swapper/610:41:576
61046991413,1cyclictest0-21swapper/510:43:045
61046991412,2cyclictest538964-21kworker/u16:0+events_unbound11:50:025
61046991412,2cyclictest102235-21kworker/u16:2+flush-8:008:00:035
61046991411,2cyclictest422230-21kworker/u16:0+flush-8:010:01:095
6104699140,1cyclictest0-21swapper/511:46:265
6104699140,1cyclictest0-21swapper/511:06:145
6104299140,1cyclictest0-21swapper/410:24:584
6105399139,3cyclictest1234-21snmpd12:04:307
6105399139,3cyclictest1234-21snmpd11:16:377
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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