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2026-07-22 - 00:36
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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 Jul 21, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
387810725217,30sleep70-21swapper/707:09:147
387803724333,7sleep50-21swapper/507:08:165
3878390994037,2cyclictest20441-21kworker/u16:3+flush-8:009:54:355
3878390994037,2cyclictest20441-21kworker/u16:3+flush-8:009:54:355
3878390993837,1cyclictest131397-21kworker/u16:2+events_unbound10:59:005
3878390993734,2cyclictest177222-21kworker/u16:0+events_unbound10:59:305
387792123624,8sleep40-21swapper/407:06:394
3878390993530,4cyclictest241262-21packagekitd11:18:215
387803823510,8sleep60-21swapper/607:08:176
3878388993329,3cyclictest241279-21pool-/usr/libex11:18:224
3878390993230,2cyclictest3910360-21kworker/u16:4+events_unbound07:24:555
3878390993129,2cyclictest193115-21kworker/u16:3+events_unbound11:36:595
3878390993129,2cyclictest131397-21kworker/u16:2+events_unbound10:49:555
3878390993128,2cyclictest4066810-21kworker/u16:4+flush-8:008:44:465
1051922310,1chrt105193-21sh10:22:087
3878390993028,2cyclictest32847-21kworker/u16:4+flush-8:010:14:555
3878398992924,4cyclictest648-21systemd-journal11:14:297
3878390992926,3cyclictest4095587-21kworker/u16:0+flush-8:009:44:555
3642762290,1chrt364277-21sh12:08:117
3878390992826,2cyclictest57500-21kworker/u16:0+events_unbound10:29:595
3878390992826,2cyclictest411803-21kworker/u16:2+events_unbound12:36:595
2770002280,1chrt277001-21sh11:31:007
3878390992725,2cyclictest4066810-21kworker/u16:4+flush-8:009:10:035
3878390992724,2cyclictest4095587-21kworker/u16:0+flush-8:009:19:505
3878390992625,1cyclictest290236-21kworker/u16:2+events_unbound11:49:275
3878390992624,2cyclictest4095587-21kworker/u16:0+events_unbound09:35:005
3878390992624,2cyclictest32846-21kworker/u16:1+flush-8:010:04:465
3878390992624,2cyclictest316030-21kworker/u16:1+flush-8:011:59:555
3878390992624,2cyclictest316030-21kworker/u16:1+flush-8:011:59:555
3878390992623,2cyclictest193115-21kworker/u16:3+events_unbound11:29:495
3878388992624,2cyclictest177222-21kworker/u16:0+events_unbound11:03:224
3878390992523,2cyclictest57500-21kworker/u16:0+flush-8:010:09:445
3878390992523,2cyclictest4095587-21kworker/u16:0+events_unbound09:29:465
3878390992523,2cyclictest177222-21kworker/u16:0+flush-8:011:04:405
3878394992421,2cyclictest3858916-21kworker/u16:3+flush-8:007:09:506
3878390992422,2cyclictest4186362-21kworker/u16:1+events_unbound09:39:465
3878390992422,2cyclictest4150709-21kworker/u16:2+flush-8:009:26:015
3878390992422,2cyclictest4095587-21kworker/u16:0+events_unbound09:50:405
3878390992422,2cyclictest350426-21kworker/u16:4+flush-8:012:04:565
3878390992422,2cyclictest193115-21kworker/u16:3+flush-8:011:39:505
3878390992320,2cyclictest20441-21kworker/u16:3+events_unbound09:59:455
3878394992119,2cyclictest3950948-21kworker/u16:4+flush-8:007:50:276
3878394992119,2cyclictest3950948-21kworker/u16:4+flush-8:007:50:276
3878394992119,2cyclictest193115-21kworker/u16:3+flush-8:011:46:206
3878394992117,3cyclictest32559-21cat09:54:306
3878394992117,3cyclictest266763-21cat11:29:296
3878390992119,2cyclictest4095587-21kworker/u16:0+flush-8:009:04:435
3878390992116,4cyclictest168081-21latency_hist10:49:305
3878388992119,2cyclictest20441-21kworker/u16:3+flush-8:010:05:354
3878394992017,2cyclictest32847-21kworker/u16:4+flush-8:011:18:426
3878390992018,2cyclictest411803-21kworker/u16:2+flush-8:012:30:115
3878390992018,2cyclictest3979557-21kworker/u16:2+flush-8:008:05:035
3878390992018,2cyclictest32847-21kworker/u16:4+flush-8:010:26:585
3878390992017,2cyclictest3858916-21kworker/u16:3+flush-8:007:09:455
3878390991917,2cyclictest3989279-21kworker/u16:1+flush-8:008:54:555
387839899188,8cyclictest143435-21turbostat10:39:307
3878398991814,3cyclictest1302-21snmpd07:24:237
3878398991813,4cyclictest4067608-21cat08:44:477
387839899180,17cyclictest4047040-21turbostat08:34:307
3878390991816,2cyclictest316030-21kworker/u16:1+flush-8:011:59:245
3878390991816,2cyclictest316030-21kworker/u16:1+flush-8:011:59:245
3878398991716,0cyclictest0-21swapper/711:49:297
3878398991715,1cyclictest69526-21turbostat10:09:307
387839899170,2cyclictest386416-21ssh12:14:547
3878394991713,3cyclictest20119-21cat09:49:306
3878390991715,2cyclictest57500-21kworker/u16:0+flush-8:010:34:545
3878390991715,2cyclictest411803-21kworker/u16:2+flush-8:012:29:255
3878390991715,2cyclictest3901460-21kworker/u16:0+flush-8:008:40:025
3878390991715,2cyclictest32847-21kworker/u16:4+events_unbound10:21:565
3878390991715,2cyclictest290236-21kworker/u16:2+flush-8:012:10:035
3878390991715,2cyclictest254265-21kworker/u16:0+flush-8:011:25:015
3878388991714,2cyclictest0-21swapper/408:44:444
3878398991614,1cyclictest3979180-21turbostat07:59:307
387839899160,14cyclictest337291-21ssh11:54:577
387839899160,14cyclictest337291-21ssh11:54:577
387839499160,15cyclictest283651-21cut11:34:496
3878390991614,2cyclictest32847-21kworker/u16:4+events_unbound10:39:495
3878390991613,2cyclictest3989279-21kworker/u16:1+flush-8:008:39:305
3878388991615,1cyclictest0-21swapper/407:44:504
3878388991613,2cyclictest32847-21kworker/u16:4+flush-8:010:55:274
3878398991513,1cyclictest0-21swapper/711:39:557
3878398991512,2cyclictest1302-21snmpd09:42:517
387839899150,1cyclictest0-21swapper/708:59:567
387839899150,14cyclictest239517-21sh11:15:167
387839899150,13cyclictest0-21swapper/710:49:557
387839899150,13cyclictest0-21swapper/709:24:557
3878390991513,2cyclictest4008315-21kworker/u16:3+flush-8:008:34:305
3878390991513,2cyclictest375069-21kworker/u16:1+flush-8:012:14:575
3878398991413,0cyclictest0-21swapper/710:16:377
3878398991413,0cyclictest0-21swapper/707:24:557
387839899140,1cyclictest0-21swapper/707:29:567
387839899140,13cyclictest0-21swapper/710:54:537
3878394991413,1cyclictest0-21swapper/612:30:006
3878394991413,1cyclictest0-21swapper/612:06:126
3878394991413,1cyclictest0-21swapper/610:18:316
387839499140,1cyclictest0-21swapper/612:14:426
387839499140,1cyclictest0-21swapper/612:10:276
3878390991412,2cyclictest3901460-21kworker/u16:0+flush-8:007:40:005
387839099140,14cyclictest0-21swapper/512:22:195
3878388991413,1cyclictest0-21swapper/411:27:084
3878388991413,1cyclictest0-21swapper/411:22:244
3878388991413,1cyclictest0-21swapper/410:34:474
3878388991413,1cyclictest0-21swapper/410:00:164
3878388991413,1cyclictest0-21swapper/409:41:584
3878388991411,2cyclictest3931551-21diskstats07:34:444
387838899140,1cyclictest0-21swapper/412:28:564
387838899140,1cyclictest0-21swapper/411:12:574
387838899140,1cyclictest0-21swapper/410:43:184
387838899140,1cyclictest0-21swapper/409:15:204
387838899140,14cyclictest0-21swapper/411:54:564
387838899140,14cyclictest0-21swapper/411:54:564
387838899140,14cyclictest0-21swapper/411:35:014
387838899140,14cyclictest0-21swapper/409:33:374
387838899140,13cyclictest0-21swapper/407:09:404
387839899138,4cyclictest6233-21gvfs-afc-volume09:09:377
387839899137,5cyclictest648-21systemd-journal10:14:307
3878398991310,2cyclictest414161-21turbostat12:29:307
387839899130,12cyclictest155799-21turbostat10:44:307
387839499139,3cyclictest205049-21cat11:04:296
3878394991312,1cyclictest0-21swapper/612:38:596
3878394991312,1cyclictest0-21swapper/612:20:326
3878394991312,1cyclictest0-21swapper/611:33:146
3878394991312,1cyclictest0-21swapper/611:13:416
3878394991312,1cyclictest0-21swapper/610:29:586
3878394991310,2cyclictest131397-21kworker/u16:2+flush-8:010:49:516
387839499130,1cyclictest0-21swapper/610:59:216
387839499130,13cyclictest0-21swapper/610:27:586
387839499130,13cyclictest0-21swapper/610:13:476
387839499130,13cyclictest0-21swapper/609:59:566
387839499130,0cyclictest0-21swapper/610:09:036
3878390991312,1cyclictest0-21swapper/509:19:075
3878390991311,2cyclictest4066810-21kworker/u16:4+flush-8:009:00:025
387838899139,3cyclictest131403-21cat10:34:304
3878388991312,1cyclictest0-21swapper/412:16:204
3878388991312,1cyclictest0-21swapper/411:39:454
3878388991312,1cyclictest0-21swapper/411:31:524
3878388991312,1cyclictest0-21swapper/410:21:424
3878388991312,1cyclictest0-21swapper/410:10:124
3878388991312,1cyclictest0-21swapper/408:43:104
387838899130,7cyclictest290236-21kworker/u16:2+xprtiod12:10:014
387838899130,13cyclictest0-21swapper/408:29:554
387838899130,13cyclictest0-21swapper/407:16:364
387839899129,2cyclictest1302-21snmpd11:07:387
387839899129,2cyclictest1302-21snmpd10:34:197
387839899129,2cyclictest1302-21snmpd09:16:057
387839899129,2cyclictest0-21swapper/709:04:467
387839899128,3cyclictest6124-21gmain07:14:317
387839899128,3cyclictest29222-21ssh09:49:557
387839899128,3cyclictest1302-21snmpd12:34:147
387839899128,3cyclictest1302-21snmpd12:10:137
387839899128,3cyclictest1302-21snmpd09:30:267
387839899128,3cyclictest1302-21snmpd08:12:527
387839899127,4cyclictest648-21systemd-journal07:44:257
3878398991212,0cyclictest0-21swapper/712:01:187
3878398991212,0cyclictest0-21swapper/712:01:187
387839899120,2cyclictest399839-21ssh12:20:497
387839899120,2cyclictest327517-21ssh11:53:207
387839899120,2cyclictest116953-21ssh10:26:067
387839899120,1cyclictest251191-21ssh11:19:557
387839899120,11cyclictest1302-21snmpd08:40:377
387839899120,10cyclictest427551-21ssh12:34:447
387839899120,10cyclictest1302-21snmpd08:24:467
387839499128,3cyclictest292609-21cat11:39:466
3878394991211,1cyclictest0-21swapper/611:53:256
3878394991211,1cyclictest0-21swapper/611:07:516
3878394991211,1cyclictest0-21swapper/610:23:146
3878394991211,1cyclictest0-21swapper/608:37:176
387839499120,1cyclictest0-21swapper/607:20:026
387839099128,3cyclictest3970644-21cat07:54:475
3878390991211,1cyclictest0-21swapper/511:12:105
3878390991210,2cyclictest316030-21kworker/u16:1+flush-8:011:50:155
387839099120,12cyclictest0-21swapper/507:15:025
3878388991211,1cyclictest0-21swapper/412:21:034
3878388991211,1cyclictest0-21swapper/412:04:394
3878388991211,1cyclictest0-21swapper/411:05:324
3878388991211,1cyclictest0-21swapper/410:52:174
3878388991211,1cyclictest0-21swapper/409:50:204
3878388991211,1cyclictest0-21swapper/409:25:444
3878388991211,1cyclictest0-21swapper/408:05:014
387839899119,1cyclictest0-21swapper/707:39:307
387839899118,2cyclictest1302-21snmpd08:53:117
387839899118,2cyclictest1302-21snmpd08:20:107
387839899118,2cyclictest1302-21snmpd07:49:307
387839899117,3cyclictest6054-21evolution-alarm07:59:527
387839899117,3cyclictest5831-21gnome-shell11:03:217
387839899117,3cyclictest1302-21snmpd08:38:377
387839899116,4cyclictest934-21dbus-daemon08:06:587
387839899115,5cyclictest6233-21gvfs-afc-volume07:09:497
387839899111,2cyclictest166969-21chrt10:47:337
3878398991111,0cyclictest0-21swapper/709:45:337
387839899110,10cyclictest265059-21ssh11:26:377
387839499118,2cyclictest4124024-21needreboot09:09:546
387839499117,3cyclictest4019104-21cat08:19:476
3878394991110,1cyclictest0-21swapper/608:57:286
3878394991110,1cyclictest0-21swapper/607:54:436
3878394991110,1cyclictest0-21swapper/607:48:536
3878394991110,1cyclictest0-21swapper/607:35:016
387839499110,3cyclictest134620-21kthreadcore10:34:486
387839499110,10cyclictest4133284-21kthreadcore09:14:526
387839499110,10cyclictest4007281-21ntpq08:09:536
387839099119,2cyclictest32847-21kworker/u16:4+events_unbound11:20:205
387839099110,11cyclictest0-21swapper/508:51:035
387839099110,11cyclictest0-21swapper/508:11:105
387839099110,11cyclictest0-21swapper/507:37:355
387838899118,2cyclictest4007223-21needreboot08:09:524
387838899116,4cyclictest44744-21latency_hist09:59:304
387838899116,4cyclictest44744-21latency_hist09:59:304
3878388991110,1cyclictest0-21swapper/412:03:054
3878388991110,1cyclictest0-21swapper/412:03:054
3878388991110,1cyclictest0-21swapper/410:46:274
3878388991110,1cyclictest0-21swapper/408:55:184
3878388991110,1cyclictest0-21swapper/407:20:524
387838899110,11cyclictest0-21swapper/407:33:104
387838899110,11cyclictest0-21swapper/407:28:544
387838899110,0cyclictest0-21swapper/408:52:094
387839899107,2cyclictest0-21swapper/709:54:567
387839899107,2cyclictest0-21swapper/709:54:567
387839899106,3cyclictest5741-21ssh-agent08:54:467
387839899106,3cyclictest1302-21snmpd07:50:217
387839899106,3cyclictest1302-21snmpd07:50:217
387839899105,4cyclictest934-21dbus-daemon09:36:587
387839899100,1cyclictest55903-21ssh10:02:187
387839899100,1cyclictest4140133-21ssh09:19:407
387839899100,1cyclictest288789-21ssh11:35:027
387839499109,1cyclictest0-21swapper/611:57:416
387839499109,1cyclictest0-21swapper/611:57:416
387839499109,1cyclictest0-21swapper/609:39:346
387839499109,1cyclictest0-21swapper/609:34:506
387839499109,1cyclictest0-21swapper/608:47:236
387839499109,1cyclictest0-21swapper/608:24:316
387839499109,1cyclictest0-21swapper/608:08:366
387839499109,1cyclictest0-21swapper/607:14:406
387839499106,3cyclictest3979938-21cstates07:59:446
387839499104,5cyclictest0-21swapper/609:24:436
387839499101,8cyclictest4168003-21kthreadcore09:29:496
387839499100,9cyclictest4098794-21kthreadcore08:59:496
387839499100,9cyclictest344319-21kthreadcore11:59:496
387839499100,9cyclictest344319-21kthreadcore11:59:496
387839499100,9cyclictest168090-21perf10:49:306
387839499100,4cyclictest4008642-21/usr/sbin/munin08:14:476
387839499100,3cyclictest3923847-21kthreadcore07:29:496
387839499100,3cyclictest244812-21kthreadcore11:19:496
387839099109,1cyclictest0-21swapper/508:25:315
387839099108,2cyclictest3901460-21kworker/u16:0+flush-8:007:59:495
387839099100,0cyclictest0-21swapper/507:53:025
387839099100,0cyclictest0-21swapper/507:53:025
387839099100,0cyclictest0-21swapper/507:20:245
387838899109,1cyclictest0-21swapper/407:50:404
387838899109,1cyclictest0-21swapper/407:50:404
387838899109,1cyclictest0-21swapper/407:43:154
38783989998,0cyclictest0-21swapper/708:14:507
38783949997,1cyclictest0-21swapper/609:04:546
38783949996,2cyclictest403094-21perl12:24:446
38783949990,8cyclictest4143123-21kthreadcore09:19:496
38783949990,8cyclictest147824-21kthreadcore10:39:486
38783949990,8cyclictest0-21swapper/609:54:556
38783949990,8cyclictest0-21swapper/609:54:556
38783949990,8cyclictest0-21swapper/608:30:016
38783949990,3cyclictest3943495-21cut07:39:506
38783949990,1cyclictest3914126-21kthreadcore07:24:506
38783909998,1cyclictest0-21swapper/508:23:565
38783909994,4cyclictest4017175-21wc08:14:585
38783889998,1cyclictest0-21swapper/411:47:094
38783889998,1cyclictest0-21swapper/408:28:214
38783889997,1cyclictest0-21swapper/408:19:494
38783889996,2cyclictest1074-21lldpd10:17:034
38783889996,2cyclictest0-21swapper/411:49:514
38783889990,8cyclictest4050557-21tr08:34:504
38783889990,8cyclictest3975036-21cut07:54:524
38783949983,4cyclictest4057493-21cat08:39:436
38783949980,1cyclictest0-21swapper/608:49:486
38783909986,1cyclictest0-21swapper/507:44:505
38783909980,7cyclictest0-21swapper/507:29:525
38783889987,1cyclictest0-21swapper/409:08:334
38783889987,1cyclictest0-21swapper/409:02:434
38783889986,1cyclictest0-21swapper/412:29:494
38783889984,3cyclictest9102-21iostat09:44:464
38783889983,4cyclictest427287-21expr12:34:424
38783889983,4cyclictest4183221-21cut09:34:484
38783889983,4cyclictest3982311-21cat07:59:504
38783889975,1cyclictest0-21swapper/410:24:464
38783889973,3cyclictest4141117-21irqcore09:19:474
38783889973,3cyclictest4116551-21cut09:09:474
38783889973,3cyclictest4008776-21sort08:14:434
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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