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2026-05-26 - 22:28
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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 highest latencies:
System rackeslot6.osadl.org (updated Tue May 26, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270219999143113,20cyclictest2743833-21latency_hist09:20:011
270219799113100,9cyclictest2781076-21latency_hist11:15:020
27021999910495,7cyclictest2774340-21latency_hist10:55:001
27021999910191,7cyclictest2779345-21ldconfig11:06:341
2702197999993,5cyclictest2769616-21kworker/u8:0+events_unbound11:06:410
2702197999791,4cyclictest2699070-21kworker/u8:1+events_unbound07:30:010
2702197999674,14cyclictest1213033-21systemd-journal12:20:000
2702197999489,4cyclictest2784251-21kworker/u8:1+flush-179:012:05:250
2702197999486,6cyclictest2742233-21latency_hist09:15:010
2702197999285,5cyclictest2784255-21kworker/u8:3+flush-179:011:40:020
2702197999285,5cyclictest2784255-21kworker/u8:3+flush-179:011:40:010
2702199999186,3cyclictest2784251-21kworker/u8:1+flush-179:012:25:211
2702199999179,10cyclictest2734017-21latency_hist08:50:011
2702199999080,7cyclictest2803677-21latency_hist12:25:021
2702199999080,7cyclictest2803677-21latency_hist12:25:011
2702197999085,4cyclictest2781112-21kworker/u8:2+events_unbound11:20:240
2702199998981,6cyclictest2759755-21latency_hist10:10:011
2702199998977,9cyclictest2800235-21apt-get12:15:001
2702197998979,4cyclictest2784255-21kworker/u8:3+events_unbound11:25:240
2702197998884,3cyclictest2715144-21kworker/u8:0+events_unbound08:05:280
2702197998882,4cyclictest2751783-21kworker/u8:1+events_unbound10:00:150
2702199998675,8cyclictest2785859-21latency_hist11:30:011
2702197998679,5cyclictest2805561-21munin-run12:30:010
2702197998479,4cyclictest2769616-21kworker/u8:0+flush-179:010:55:210
2702197998478,4cyclictest2730891-21kworker/u8:3+flush-179:009:45:190
2702199998374,6cyclictest2726060-21latency_hist08:25:001
2702197998377,4cyclictest2716730-21/usr/sbin/munin07:55:230
2702197998176,4cyclictest2721255-21kworker/u8:1+events_unbound08:20:210
2702197998176,4cyclictest2719151-21kworker/u8:2+flush-179:008:10:270
2702197998176,4cyclictest2705301-21kworker/u8:2+events_unbound07:35:230
2702197998176,4cyclictest2699070-21kworker/u8:1+events_unbound07:10:240
2702199998072,6cyclictest2789293-21/usr/sbin/munin11:40:231
2702199998072,5cyclictest2784273-21latency_hist11:25:011
2702199998070,8cyclictest2779748-21apt-get11:10:111
2702197998075,4cyclictest2751783-21kworker/u8:1+events_unbound10:25:230
2702197998075,4cyclictest2727632-21kworker/u8:2+flush-179:008:30:230
2702197998074,5cyclictest2730544-21kworker/u8:0+events_unbound09:15:130
2702197998070,7cyclictest2730823-21latency_hist08:40:010
2702197997975,3cyclictest2751783-21kworker/u8:1+flush-179:010:30:240
2702197997973,4cyclictest2784251-21kworker/u8:1+flush-179:011:55:260
2702197997965,4cyclictest2784255-21kworker/u8:3+events_unbound11:40:150
2702199997866,9cyclictest2751239-21kworker/u8:0+flush-179:009:40:201
2702199997853,21cyclictest2761375-21kworker/u8:3+flush-179:010:30:011
2702197997873,4cyclictest2761375-21kworker/u8:3+events_unbound10:20:170
2702199997766,9cyclictest1213033-21systemd-journal08:30:001
2702197997772,3cyclictest2730891-21kworker/u8:3+flush-179:009:55:180
2702199997667,6cyclictest2756563-21latency_hist10:00:021
2702197997667,3cyclictest2784251-21kworker/u8:1+events_unbound12:10:270
2702197997665,4cyclictest2758755-21kworker/u8:0+events_unbound10:05:240
2702197997469,4cyclictest2769616-21kworker/u8:0+events_unbound10:50:230
2702197997469,4cyclictest2719151-21kworker/u8:2+events_unbound08:15:250
2702199997362,9cyclictest2705595-21apt-get07:20:131
2702199997360,9cyclictest2758755-21kworker/u8:0+flush-179:010:15:001
2702197997369,3cyclictest2730544-21kworker/u8:0+flush-179:009:20:260
2702199997263,6cyclictest2737483-21latency_hist09:00:011
2702197997268,3cyclictest2705301-21kworker/u8:2+events_unbound07:45:270
2702197997267,4cyclictest2769616-21kworker/u8:0+events_unbound11:00:190
2702197997267,4cyclictest2719151-21kworker/u8:2+flush-179:008:00:260
2702197997166,4cyclictest2784251-21kworker/u8:1+flush-179:011:30:250
2702199997059,7cyclictest1213033-21systemd-journal11:52:501
2702199997056,10cyclictest2761375-21kworker/u8:3+flush-179:010:30:021
2702199996960,6cyclictest2754971-21latency_hist09:55:011
2702197996964,4cyclictest2805503-21kworker/u8:2+flush-179:012:30:210
2702197996962,5cyclictest2793838-21apt-get11:52:500
2702199996860,6cyclictest2805503-21kworker/u8:2+events_unbound12:40:001
2702197996862,4cyclictest2751239-21kworker/u8:0+flush-179:009:40:270
2702197996860,3cyclictest2758755-21kworker/u8:0+events_unbound10:15:240
2702197996858,7cyclictest2771167-21latency_hist10:45:000
2702199996759,6cyclictest2761596-21apt-get10:15:091
2702197996762,4cyclictest2789098-21kworker/u8:0+flush-179:011:45:260
2702199996657,6cyclictest2793799-21kworker/u8:2+flush-179:012:00:231
2702199996657,6cyclictest2793799-21kworker/u8:2+flush-179:012:00:221
2702199996656,8cyclictest2761375-21kworker/u8:3+flush-179:010:45:221
2702197996560,4cyclictest2705301-21kworker/u8:2+flush-179:007:30:260
2702197996557,6cyclictest2743888-21kworker/u8:2+flush-179:009:30:010
2702197996455,7cyclictest2721255-21kworker/u8:1+events_unbound08:45:150
2702199996259,2cyclictest0-21swapper/108:35:591
2702197996256,4cyclictest2703983-21apt-get07:15:110
2702199996157,2cyclictest2751783-21kworker/u8:1+events_unbound10:20:251
2702199996151,8cyclictest2786118-21apt-get11:30:101
2702197996157,3cyclictest2730891-21kworker/u8:3+flush-179:008:50:210
2702197996156,4cyclictest2724437-21kworker/u8:3+events_unbound08:25:250
2702197996154,5cyclictest2784251-21kworker/u8:1+flush-179:012:35:240
2702199996048,10cyclictest2797031-21kworker/u8:0+flush-179:012:15:221
2702197996055,4cyclictest2793799-21kworker/u8:2+events_unbound12:00:190
2702197996055,4cyclictest2793799-21kworker/u8:2+events_unbound12:00:190
2702197996051,7cyclictest2781112-21kworker/u8:2+flush-179:011:20:000
4577091590,24ptp4l441ktimers/307:10:013
2702201995956,2cyclictest0-21swapper/209:14:002
2702201995956,2cyclictest0-21swapper/207:42:592
2702199995929,24cyclictest2705301-21kworker/u8:2+flush-179:007:30:151
2702197995955,3cyclictest2730891-21kworker/u8:3+events_unbound09:35:230
2702197995953,4cyclictest2737726-21apt-get09:00:120
2702197995950,3cyclictest2710083-21kworker/u8:4+events_unbound07:40:180
2702199995849,6cyclictest2730891-21kworker/u8:3+flush-179:009:05:011
2702197995854,3cyclictest2743888-21kworker/u8:2+events_unbound09:30:170
2702197995752,4cyclictest2758755-21kworker/u8:0+flush-179:010:10:270
2702199995633,21cyclictest2735862-21latency_hist08:55:011
2702197995447,5cyclictest2706926-21latency_hist07:25:010
2702199995346,6cyclictest2768228-21apt-get10:35:121
270219999530,38cyclictest2789044-21sh11:40:011
270219999530,38cyclictest2789044-21sh11:40:001
2702199995243,6cyclictest2730891-21kworker/u8:3+flush-179:009:30:211
2702199995238,12cyclictest2730891-21kworker/u8:3+flush-179:009:45:151
2702197995248,3cyclictest2797031-21kworker/u8:0+flush-179:012:22:300
2702197995248,3cyclictest2797031-21kworker/u8:0+flush-179:012:22:290
2702197995248,3cyclictest2751783-21kworker/u8:1+flush-179:009:50:300
2702199995145,4cyclictest2784255-21kworker/u8:3+flush-179:011:55:101
2702205995048,1cyclictest0-21swapper/308:40:593
2702199995043,5cyclictest2719151-21kworker/u8:2+flush-179:008:15:221
2702199995042,6cyclictest2730544-21kworker/u8:0+flush-179:009:05:201
2702197995046,3cyclictest2715144-21kworker/u8:0+flush-179:007:54:220
2702205994947,1cyclictest0-21swapper/310:24:583
2702199994943,4cyclictest2719151-21kworker/u8:2+flush-179:008:05:191
2702199994838,7cyclictest2710083-21kworker/u8:4+flush-179:007:40:201
270219999482,29cyclictest2727903-21apt-get08:30:121
2702197994843,3cyclictest2730544-21kworker/u8:0+flush-179:008:55:160
2702199994741,4cyclictest2719690-21latency_hist08:05:011
2702199994740,5cyclictest2719151-21kworker/u8:2+flush-179:008:10:201
2702199994737,8cyclictest2769838-21apt-get10:40:131
2702205994640,4cyclictest2710108-21turbostat07:34:593
2702205994639,5cyclictest2785871-21turbostat11:30:013
2702199994637,6cyclictest321-21hwrng07:50:591
2702199994538,5cyclictest2699070-21kworker/u8:1+events_unbound07:50:001
2702199994535,8cyclictest2751783-21kworker/u8:1+flush-179:010:00:211
2702197994439,4cyclictest2761375-21kworker/u8:3+events_unbound10:48:300
2702197994339,4cyclictest2730544-21kworker/u8:0+flush-179:009:05:300
2702199994234,6cyclictest2732432-21latency_hist08:45:011
2702199994234,6cyclictest2730891-21kworker/u8:3+flush-179:009:25:241
2702199994232,1cyclictest0-21swapper/112:34:551
2702197994235,5cyclictest1213033-21systemd-journal10:36:290
270220199410,39cyclictest0-21swapper/211:46:002
2702199994139,1cyclictest2789098-21kworker/u8:0+flush-179:011:45:231
2702199994133,6cyclictest2784251-21kworker/u8:1+flush-179:012:05:221
2702201994037,2cyclictest0-21swapper/212:13:592
2702199994035,4cyclictest484-21dbus-daemon09:15:001
2702199994035,4cyclictest2730891-21kworker/u8:3+flush-179:009:35:241
2702199994033,5cyclictest2708513-21latency_hist07:30:011
2702199994032,6cyclictest1213033-21systemd-journal07:19:141
270219999400,38cyclictest714-21Xorg07:39:591
2702205993933,4cyclictest2724458-21turbostat08:20:003
2702199993934,4cyclictest2769616-21kworker/u8:0+flush-179:011:00:231
2702197993930,5cyclictest0-21swapper/008:43:590
2702205993836,1cyclictest0-21swapper/307:18:593
270220199380,35cyclictest0-21swapper/207:24:552
2702199993833,3cyclictest2744539-21hwlatdetect09:20:161
2702199993829,6cyclictest2769616-21kworker/u8:0+flush-179:011:15:131
2702205993734,2cyclictest0-21swapper/309:32:583
270220599370,36cyclictest0-21swapper/307:44:553
2702201993734,2cyclictest0-21swapper/210:38:592
2702201993734,2cyclictest0-21swapper/209:16:592
2702201993734,2cyclictest0-21swapper/207:29:552
270220199370,35cyclictest0-21swapper/212:38:582
2702205993634,1cyclictest0-21swapper/311:58:003
2702205993634,1cyclictest0-21swapper/310:16:003
2702205993634,1cyclictest0-21swapper/307:51:593
2702205993633,2cyclictest0-21swapper/311:33:593
270220599360,35cyclictest0-21swapper/307:55:593
270220599360,1cyclictest0-21swapper/308:32:593
2702201993633,2cyclictest0-21swapper/212:09:542
2702201993633,2cyclictest0-21swapper/208:34:552
2702201993633,2cyclictest0-21swapper/208:07:592
2702199993633,2cyclictest714-21Xorg07:13:591
2702205993532,2cyclictest0-21swapper/311:15:003
2702205993532,2cyclictest0-21swapper/309:14:003
2702201993533,1cyclictest0-21swapper/211:31:002
270219999350,32cyclictest2774593-21apt10:55:111
2702205993432,1cyclictest0-21swapper/312:34:593
2702205993432,1cyclictest0-21swapper/309:06:593
2702205993432,1cyclictest0-21swapper/308:37:593
2702205993432,1cyclictest0-21swapper/308:03:593
2702201993431,2cyclictest0-21swapper/209:29:002
2702201993431,2cyclictest0-21swapper/209:08:592
2702205993326,6cyclictest2759759-21turbostat10:09:593
2702201993331,1cyclictest0-21swapper/210:54:582
2702199993328,4cyclictest2705301-21kworker/u8:2+events_unbound07:55:141
2702205993230,1cyclictest0-21swapper/312:12:003
2702205993230,1cyclictest0-21swapper/311:21:583
2702205993230,1cyclictest0-21swapper/307:14:563
2702201993229,2cyclictest0-21swapper/207:59:552
2702205993129,1cyclictest0-21swapper/312:17:593
2702205993129,1cyclictest0-21swapper/311:54:583
2702205993125,5cyclictest2803687-21turbostat12:29:553
2702201993128,2cyclictest0-21swapper/211:06:582
2702201993128,2cyclictest0-21swapper/210:19:552
2702205993028,1cyclictest0-21swapper/312:04:553
2702205993028,1cyclictest0-21swapper/312:04:553
2702205993028,1cyclictest0-21swapper/309:30:003
2702205993028,1cyclictest0-21swapper/308:51:593
2702201993027,2cyclictest0-21swapper/211:35:122
2702201993027,2cyclictest0-21swapper/211:35:122
2702201993027,2cyclictest0-21swapper/211:10:142
2702201993027,2cyclictest0-21swapper/211:01:592
2702201993027,2cyclictest0-21swapper/210:45:122
2702201993027,2cyclictest0-21swapper/209:01:582
2702201993027,2cyclictest0-21swapper/208:54:552
2702201993027,2cyclictest0-21swapper/207:54:002
4577091290,7ptp4l441ktimers/310:35:013
2702205992927,1cyclictest0-21swapper/309:58:003
2702205992927,1cyclictest0-21swapper/308:55:583
2702205992926,2cyclictest0-21swapper/312:35:123
2702205992926,2cyclictest0-21swapper/311:44:003
2702205992926,2cyclictest0-21swapper/310:25:113
2702205992926,2cyclictest0-21swapper/308:10:143
2702205992926,2cyclictest0-21swapper/308:05:163
2702205992926,1cyclictest0-21swapper/310:35:593
270220599290,28cyclictest0-21swapper/311:06:323
270220599290,27cyclictest0-21swapper/310:10:123
2702201992927,1cyclictest0-21swapper/212:29:592
2702201992927,1cyclictest0-21swapper/207:20:002
2702201992926,2cyclictest0-21swapper/211:16:002
2702201992926,2cyclictest0-21swapper/210:10:112
2702201992926,2cyclictest0-21swapper/210:06:592
2702201992926,2cyclictest0-21swapper/208:43:002
270220199290,28cyclictest0-21swapper/210:25:112
270220199290,28cyclictest0-21swapper/209:30:142
270220199290,27cyclictest0-21swapper/209:45:122
270220199290,27cyclictest0-21swapper/208:55:112
270220199290,27cyclictest0-21swapper/208:10:142
231999290,16rtkit-daemon2701344-21irqstats07:05:231
4577091280,6ptp4l61490irq/134-eno1-TxRx-009:50:003
2702205992826,1cyclictest0-21swapper/308:49:593
2702205992825,2cyclictest0-21swapper/307:20:133
270220599280,2cyclictest0-21swapper/311:00:133
2702201992825,2cyclictest0-21swapper/212:16:002
2702201992825,2cyclictest0-21swapper/211:20:122
270220199280,2cyclictest0-21swapper/211:52:582
270220199280,27cyclictest0-21swapper/210:30:012
270220199280,27cyclictest0-21swapper/208:00:122
270220199280,26cyclictest0-21swapper/211:25:592
4577091270,6ptp4l61490irq/134-eno1-TxRx-012:10:003
4577091270,6ptp4l441ktimers/308:30:003
4577091270,5ptp4l441ktimers/309:35:023
4577091270,5ptp4l441ktimers/309:20:013
2702205992725,1cyclictest0-21swapper/309:20:123
270220599270,26cyclictest0-21swapper/310:49:593
270220599270,1cyclictest0-21swapper/307:35:123
270220599270,1cyclictest0-21swapper/307:25:133
2702201992725,1cyclictest0-21swapper/210:45:012
2702201992724,2cyclictest0-21swapper/208:28:592
2702201992724,2cyclictest0-21swapper/207:40:002
2702201992724,2cyclictest0-21swapper/207:10:582
270220199270,25cyclictest0-21swapper/208:46:592
4577091260,6ptp4l61490irq/134-eno1-TxRx-009:54:563
4577091260,6ptp4l441ktimers/312:25:013
4577091260,6ptp4l441ktimers/312:25:003
4577091260,6ptp4l441ktimers/311:50:003
4577091260,5ptp4l61490irq/134-eno1-TxRx-010:55:013
4577091260,5ptp4l441ktimers/308:24:563
2702205992624,1cyclictest0-21swapper/310:57:593
2702205992624,1cyclictest0-21swapper/309:42:003
2702201992624,1cyclictest0-21swapper/212:34:592
2702201992623,2cyclictest0-21swapper/211:43:002
2702201992623,2cyclictest0-21swapper/207:46:592
2702201992622,2cyclictest0-21swapper/210:02:592
270220199260,2cyclictest0-21swapper/209:52:592
270220199260,2cyclictest0-21swapper/209:35:582
270220199260,24cyclictest0-21swapper/209:21:592
270220199260,1cyclictest0-21swapper/212:24:582
270220199260,1cyclictest0-21swapper/212:24:582
4577091250,6ptp4l61490irq/134-eno1-TxRx-011:40:013
4577091250,6ptp4l61490irq/134-eno1-TxRx-011:40:003
4577091250,6ptp4l441ktimers/309:05:003
4577091250,5ptp4l441ktimers/310:44:553
4577091250,4ptp4l441ktimers/311:20:003
2702205992522,2cyclictest0-21swapper/307:48:003
270220199250,2cyclictest0-21swapper/207:31:592
4577091240,5ptp4l441ktimers/310:04:563
2702201992321,1cyclictest0-21swapper/211:00:002
2702201992321,1cyclictest0-21swapper/210:24:592
2702201992321,1cyclictest0-21swapper/208:18:592
2702201992320,2cyclictest0-21swapper/211:57:592
2702197992316,5cyclictest2702102-21latency_hist07:10:020
2702201992219,2cyclictest0-21swapper/209:41:592
2702201992118,2cyclictest0-21swapper/208:37:592
2702201991916,2cyclictest0-21swapper/209:55:112
270220199129,2cyclictest0-21swapper/212:04:562
270220199129,2cyclictest0-21swapper/212:04:552
27022019960,1cyclictest0-21swapper/208:20:292
27022019930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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