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2026-04-21 - 14:58
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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 792 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
6105399139,3cyclictest1234-21snmpd07:49:267
6105399135,7cyclictest6382-21gvfs-afc-volume09:29:577
6105399135,7cyclictest6063-21gdbus09:49:127
6105399135,7cyclictest6063-21gdbus09:49:127
61053991313,0cyclictest0-21swapper/710:58:057
6105399130,11cyclictest170240-21latency_hist08:04:347
6105399130,11cyclictest1234-21snmpd11:44:597
61048991312,1cyclictest0-21swapper/611:52:256
61048991312,1cyclictest0-21swapper/611:03:236
61046991312,1cyclictest0-21swapper/509:48:405
61046991312,1cyclictest0-21swapper/509:48:405
6104699130,13cyclictest0-21swapper/507:34:585
61042991312,1cyclictest0-21swapper/412:00:474
6105399129,2cyclictest1234-21snmpd12:17:007
6105399129,2cyclictest1234-21snmpd10:24:577
6105399129,2cyclictest0-21swapper/710:29:467
6105399128,3cyclictest1234-21snmpd10:42:427
6105399128,3cyclictest1234-21snmpd10:12:507
6105399128,3cyclictest1234-21snmpd09:51:207
6105399128,3cyclictest1234-21snmpd09:20:017
6105399128,3cyclictest1234-21snmpd08:51:107
6105399128,3cyclictest1234-21snmpd08:22:187
6105399128,3cyclictest1234-21snmpd07:36:447
6105399128,3cyclictest1234-21snmpd07:22:387
6105399126,5cyclictest6382-21gvfs-afc-volume11:54:437
6105399125,6cyclictest6382-21gvfs-afc-volume08:25:017
6105399125,6cyclictest6382-21gvfs-afc-volume08:25:017
61053991210,1cyclictest237402-21awk08:39:337
6104899128,3cyclictest418448-21cat09:59:476
61046991211,1cyclictest0-21swapper/507:49:295
61046991210,2cyclictest237569-21kworker/u16:2+events_unbound08:39:495
6104699120,12cyclictest0-21swapper/507:22:505
6104299127,4cyclictest344495-21munin-node09:29:444
61042991211,1cyclictest0-21swapper/408:43:234
6104299120,1cyclictest0-21swapper/408:15:104
6105399118,2cyclictest1234-21snmpd12:09:217
6105399118,2cyclictest1234-21snmpd09:58:207
6105399118,2cyclictest0-21swapper/707:14:347
6105399117,3cyclictest0-21swapper/710:35:007
6105399116,5cyclictest6382-21gvfs-afc-volume10:47:407
6105399116,4cyclictest6382-21gvfs-afc-volume11:39:457
6105399115,5cyclictest6382-21gvfs-afc-volume12:35:327
6105399115,5cyclictest6382-21gvfs-afc-volume12:24:337
6105399112,8cyclictest5997-21gnome-software09:00:357
6105399110,10cyclictest1234-21snmpd11:10:347
6105399110,10cyclictest1234-21snmpd11:10:347
6105399110,10cyclictest1234-21snmpd07:56:087
6104899118,2cyclictest86-21ksoftirqd/610:19:506
6104899117,3cyclictest552408-21cat10:54:506
6104899112,3cyclictest296192-21cat09:09:476
6104899110,4cyclictest703530-21kthreadcore11:54:586
6104699119,2cyclictest662408-21kthreadcore11:39:495
6104699119,2cyclictest274263-21kworker/u16:1+flush-8:010:44:555
6104699116,4cyclictest620866-21ntpq11:19:565
6104699116,4cyclictest600951-21cat11:14:485
61046991110,1cyclictest0-21swapper/508:28:255
61046991110,1cyclictest0-21swapper/508:28:255
6104699110,1cyclictest0-21swapper/507:34:305
61042991110,1cyclictest0-21swapper/407:36:514
6104299110,1cyclictest0-21swapper/408:45:264
6104299110,1cyclictest0-21swapper/408:14:234
6104299110,1cyclictest0-21swapper/407:24:244
6104299110,11cyclictest0-21swapper/407:53:064
6104299110,11cyclictest0-21swapper/407:11:004
6104299110,10cyclictest0-21swapper/409:14:494
6105399107,2cyclictest1234-21snmpd07:30:357
6105399107,2cyclictest0-21swapper/711:04:547
6105399107,2cyclictest0-21swapper/709:34:507
6105399106,3cyclictest1234-21snmpd12:24:367
6105399105,4cyclictest6382-21gvfs-afc-volume07:49:467
6105399104,5cyclictest6382-21gvfs-afc-volume08:44:597
6105399104,4cyclictest300918-21grep09:09:547
6105399104,4cyclictest191063-21grep08:14:507
6104899108,2cyclictest86-21ksoftirqd/612:26:326
6104899108,2cyclictest86-21ksoftirqd/611:39:576
6104899108,2cyclictest86-21ksoftirqd/611:29:096
6104899107,3cyclictest274263-21kworker/u16:1+flush-8:011:09:386
6104899107,3cyclictest274263-21kworker/u16:1+flush-8:011:09:386
6104899106,3cyclictest384799-21kthreadcore09:44:526
6104899106,3cyclictest384799-21kthreadcore09:44:526
6104899105,4cyclictest674050-21cat11:44:486
6104899104,5cyclictest0-21swapper/611:04:546
6104899104,5cyclictest0-21swapper/610:44:516
6104899104,5cyclictest0-21swapper/610:25:006
6104899104,5cyclictest0-21swapper/609:24:516
6104899100,9cyclictest709814-21/usr/sbin/munin11:59:456
6104899100,3cyclictest726220-21kthreadcore12:04:526
6104899100,3cyclictest395744-21grep09:49:516
6104299109,1cyclictest260643-21kthreadcore08:49:514
6104299109,1cyclictest0-21swapper/410:04:264
6104299105,4cyclictest377434-21grep09:39:594
6104299100,9cyclictest0-21swapper/407:29:484
610539995,3cyclictest6382-21gvfs-afc-volume08:54:497
610539995,3cyclictest1198-21tuned-ppd10:49:597
610489997,2cyclictest86-21ksoftirqd/609:33:576
610489997,2cyclictest86-21ksoftirqd/609:20:306
610489995,3cyclictest762403-21grep12:19:526
610489995,3cyclictest311338-21kthreadcore09:14:526
610489994,4cyclictest543645-21cut10:49:526
610489990,8cyclictest620194-21cut11:19:546
610489990,8cyclictest600807-21fschecks_time11:14:476
610489990,8cyclictest491085-21grep10:29:466
610489990,8cyclictest442702-21fschecks_time10:09:486
610489990,8cyclictest0-21swapper/612:14:546
610489990,3cyclictest649699-21irqcore11:34:506
610489990,3cyclictest503863-21irqcore10:34:526
610489990,3cyclictest374096-21tr09:39:526
610469997,2cyclictest514720-21kworker/u16:5+events_unbound11:25:005
610469997,2cyclictest295639-21kworker/u16:4+flush-8:009:09:525
610469996,2cyclictest0-21swapper/507:54:525
610469994,4cyclictest468060-21cut10:19:505
610469994,4cyclictest311707-21cut09:14:525
610469994,4cyclictest175356-21cut08:04:525
610429996,2cyclictest381314-21cstates09:44:454
610429996,2cyclictest381314-21cstates09:44:454
610429996,2cyclictest298704-21kthreadcore09:09:524
610429996,2cyclictest0-21swapper/412:04:524
610429994,4cyclictest491505-21tune2fs10:29:484
610429990,8cyclictest0-21swapper/410:54:504
610539980,7cyclictest1234-21snmpd09:06:407
610539980,7cyclictest1234-21snmpd09:06:407
610489986,1cyclictest430467-21tune2fs10:04:466
610469987,1cyclictest429803-21kworker/u16:3+events_unbound10:24:525
610469986,1cyclictest0-21swapper/509:49:525
610469984,3cyclictest93807-21kworker/u16:1+flush-8:007:39:595
610469984,3cyclictest778333-21cut12:24:555
610469983,4cyclictest765372-21cut12:19:545
610469983,4cyclictest565054-21cut10:59:495
610469983,4cyclictest460779-21kthreadcore10:14:535
610469983,4cyclictest337050-21cut09:24:515
610469983,4cyclictest249035-21cut08:44:495
610469981,4cyclictest265583-21cat08:50:005
610469980,7cyclictest75488-21sed07:14:515
610429986,1cyclictest0-21swapper/412:34:504
610429986,1cyclictest0-21swapper/412:09:444
610429986,1cyclictest0-21swapper/411:49:534
610429986,1cyclictest0-21swapper/411:19:514
610429986,1cyclictest0-21swapper/411:09:524
610429986,1cyclictest0-21swapper/411:09:524
610429986,1cyclictest0-21swapper/409:50:014
610429986,1cyclictest0-21swapper/408:19:524
610429985,2cyclictest356692-21/usr/sbin/munin09:34:454
610429985,2cyclictest0-21swapper/410:44:504
610429984,3cyclictest783579-21cat12:29:494
610429984,3cyclictest633056-21open_files11:24:594
610429984,3cyclictest229804-21cat08:34:514
610429984,3cyclictest167910-21kthreadcore07:59:544
610429983,4cyclictest776329-21cut12:24:544
610429983,4cyclictest71748-21cut07:14:354
610429983,4cyclictest700785-21grep11:54:574
610429983,4cyclictest677824-21grep11:44:524
610429983,4cyclictest578445-21cut11:04:514
610429983,4cyclictest544242-21cut10:49:534
610429983,4cyclictest454945-21tune2fs10:14:464
610429983,4cyclictest335701-21cut09:24:504
610429983,4cyclictest283096-21cut08:59:544
610429983,4cyclictest209546-21cut08:24:484
610429983,4cyclictest209546-21cut08:24:484
610429983,4cyclictest174315-21cut08:04:524
610469975,2cyclictest538964-21kworker/u16:0+flush-8:012:14:395
610469975,1cyclictest0-21swapper/509:04:525
610469975,1cyclictest0-21swapper/509:04:525
610469975,1cyclictest0-21swapper/508:54:475
610469974,2cyclictest358356-21kthreadcore09:34:505
610469973,3cyclictest228673-21df08:34:475
610469973,3cyclictest218676-21cpuspeed_turbos08:29:475
610469972,4cyclictest369939-21cut09:39:495
610469972,4cyclictest200707-21kthreadcore08:19:495
610429975,1cyclictest0-21swapper/411:39:464
610429975,1cyclictest0-21swapper/411:14:454
610429975,1cyclictest0-21swapper/410:59:494
610429975,1cyclictest0-21swapper/410:34:504
610429975,1cyclictest0-21swapper/410:09:524
610429974,2cyclictest749023-21cut12:14:504
610429974,2cyclictest515764-21fschecks_time10:39:484
610429974,2cyclictest125047-21kthreadcore07:39:524
610429974,2cyclictest0-21swapper/408:54:504
610429973,3cyclictest649618-21sed11:34:484
610429973,3cyclictest133371-21cut07:44:504
610429972,4cyclictest320059-21cpu09:19:454
610429972,4cyclictest286208-21expr09:04:464
610429972,4cyclictest286208-21expr09:04:464
610429972,4cyclictest219822-21cut08:29:514
610429972,4cyclictest152172-21if_err_p4p107:54:484
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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