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2026-05-31 - 22:02
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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 rackeslot6.osadl.org (updated Sun May 31, 2026 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38350519910999,7cyclictest3886126-21latency_hist09:50:011
38350519910691,10cyclictest1213033-21systemd-journal11:00:011
38350519910597,5cyclictest3925099-21latency_hist11:50:011
38350479910596,6cyclictest3870211-21latency_hist09:00:010
38350479910293,7cyclictest3910523-21latency_hist11:05:010
38350519910189,9cyclictest1213033-21systemd-journal11:45:011
3835051999673,20cyclictest3905744-21latency_hist10:50:001
3835051999673,20cyclictest3905744-21latency_hist10:50:001
3835051999382,7cyclictest3912346-21kworker/u8:1+events_unbound11:35:011
3835051999382,7cyclictest3912346-21kworker/u8:1+events_unbound11:35:001
3835047999083,5cyclictest3912346-21kworker/u8:1+flush-179:011:15:240
3835047999078,7cyclictest1-21systemd08:50:000
3835051998965,21cyclictest3907329-21latency_hist10:55:011
3835051998777,7cyclictest3874417-21kworker/u8:0+flush-179:009:20:001
3835047998779,6cyclictest1213033-21systemd-journal10:15:010
3835047998677,7cyclictest3865201-21apt-get08:45:010
3835047998677,6cyclictest3899119-21latency_hist10:30:000
3835051998575,7cyclictest3900707-21latency_hist10:35:011
3835047998476,5cyclictest3912346-21kworker/u8:1+flush-179:011:35:230
3835047998380,1cyclictest3902324-21latency_hist10:40:010
3835051998174,5cyclictest3852432-21kworker/u8:0+events_unbound08:30:281
3835047998176,4cyclictest3833434-21kworker/u8:2+events_unbound07:25:010
3835047998175,4cyclictest3878211-21kworker/u8:2+flush-179:009:35:000
3835047998175,4cyclictest3878211-21kworker/u8:2+flush-179:009:34:590
3835051998066,11cyclictest3862530-21kworker/u8:2+events_unbound09:05:011
3835051997971,6cyclictest3852432-21kworker/u8:0+events_unbound08:40:011
3835051997971,5cyclictest3931511-21kworker/u8:3+flush-179:012:35:261
3835047997871,5cyclictest3878211-21kworker/u8:2+flush-179:009:40:000
3835047997671,4cyclictest3863634-21kworker/u8:3+flush-179:009:19:550
3835051997568,5cyclictest3850824-21kworker/u8:2+flush-179:008:10:261
3835051997565,7cyclictest3918733-21latency_hist11:30:021
3835051997463,8cyclictest1213033-21systemd-journal10:00:001
3835047997468,5cyclictest3846538-21kworker/u8:1+flush-179:007:55:010
3835047997468,5cyclictest3846538-21kworker/u8:1+flush-179:007:55:000
3835047997467,5cyclictest3878211-21kworker/u8:2+flush-179:009:40:210
3835047997466,6cyclictest3846538-21kworker/u8:1+flush-179:008:00:220
3835051997366,5cyclictest3931718-21apt-get12:10:111
3835047997367,4cyclictest3850824-21kworker/u8:2+flush-179:008:10:220
3835047997364,6cyclictest3922468-21diskstats11:40:140
3835047997263,4cyclictest3846538-21kworker/u8:1+events_unbound07:55:210
3835051997165,5cyclictest3852432-21kworker/u8:0+events_unbound08:30:001
3835051997162,7cyclictest3882958-21latency_hist09:40:011
3835051997063,5cyclictest3855879-21apt-get08:15:121
3835054996966,1cyclictest0-21swapper/310:19:553
3835051996858,7cyclictest3934659-21latency_hist12:20:021
3835051996858,7cyclictest3841286-21latency_hist07:30:001
3835051996858,7cyclictest3841286-21latency_hist07:30:001
3835047996862,4cyclictest3852432-21kworker/u8:0+flush-179:008:25:230
3835047996757,8cyclictest3852432-21kworker/u8:0+events_unbound08:10:000
3835047996756,9cyclictest3899375-21apt-get10:30:120
3835051996656,7cyclictest3833434-21kworker/u8:2+flush-179:007:15:151
3835047996658,7cyclictest3833434-21kworker/u8:2+events_unbound07:15:000
3835051996457,4cyclictest3868615-21latency_hist08:55:011
3835051996456,6cyclictest3852455-21latency_hist08:05:021
3835047996458,4cyclictest3863634-21kworker/u8:3+flush-179:009:20:150
3835047996451,10cyclictest1213033-21systemd-journal12:15:000
383505499630,61cyclictest0-21swapper/308:06:593
3835051996357,4cyclictest3926938-21apt-get11:55:121
3835051996353,7cyclictest3874980-21latency_hist09:15:011
3835047996359,3cyclictest3902351-21kworker/u8:3+events_unbound10:40:250
3835047996359,3cyclictest3902351-21kworker/u8:3+events_unbound10:40:240
3835047996357,4cyclictest3874417-21kworker/u8:0+flush-179:009:25:170
3835047996355,6cyclictest3923547-21kworker/u8:2+events_unbound11:55:150
3835047996355,5cyclictest3862530-21kworker/u8:2+flush-179:008:35:220
3835051996254,4cyclictest3912346-21kworker/u8:1+flush-179:011:35:171
3835051996252,7cyclictest3912346-21kworker/u8:1+flush-179:011:15:121
3835047996255,5cyclictest3878211-21kworker/u8:2+flush-179:010:15:210
3835047996254,6cyclictest3929867-21kworker/u8:0+events_unbound12:20:200
3835047996254,6cyclictest1213033-21systemd-journal10:53:340
3835047996252,8cyclictest3923769-21apt-get11:45:120
3835047996252,7cyclictest3863634-21kworker/u8:3+flush-179:009:00:150
3835051996153,5cyclictest3884541-21latency_hist09:45:011
3835051996152,7cyclictest3835521-21kworker/u8:0+events_unbound07:45:011
3835051996150,9cyclictest1213033-21systemd-journal12:05:011
3835047996155,5cyclictest3899099-21kworker/u8:1+flush-179:010:45:180
3835047996155,5cyclictest3899099-21kworker/u8:1+flush-179:010:45:180
3835047996155,4cyclictest3895913-21kworker/u8:3+flush-179:010:20:220
3835052996057,2cyclictest0-21swapper/209:22:592
3835047996053,5cyclictest3873649-21apt-get09:10:120
3835047996053,5cyclictest3846538-21kworker/u8:1+flush-179:007:45:230
3835047995955,3cyclictest3835521-21kworker/u8:0+flush-179:007:36:350
3835047995949,7cyclictest3916890-21latency_hist11:25:000
3835051995852,4cyclictest3878179-21latency_hist09:25:011
3835051995848,8cyclictest3896203-21apt-get10:20:121
3835051995846,9cyclictest3908896-21kworker/u8:0+events_unbound11:15:011
3835051995746,8cyclictest3930133-21apt-get12:05:141
3835051995745,11cyclictest3846538-21kworker/u8:1+flush-179:007:45:251
3835047995753,3cyclictest3912346-21kworker/u8:1+flush-179:011:34:560
3835047995753,3cyclictest3912346-21kworker/u8:1+flush-179:011:34:560
3835051995643,10cyclictest3863634-21kworker/u8:3+flush-179:008:40:211
3835051995633,20cyclictest3887970-21latency_hist09:55:011
3835047995650,5cyclictest3878211-21kworker/u8:2+events_unbound09:45:240
3835047995650,4cyclictest3886639-21kworker/u8:0+flush-179:010:05:340
3835051995545,8cyclictest3892752-21latency_hist10:10:011
3835047995550,3cyclictest3912346-21kworker/u8:1+flush-179:011:28:340
3835047995548,5cyclictest3886639-21kworker/u8:0+flush-179:009:55:240
3835047995547,5cyclictest3844537-21kworker/u8:3+events_unbound07:40:160
3835051995444,8cyclictest1213033-21systemd-journal12:24:591
383505199541,37cyclictest714-21Xorg12:27:591
3835047995449,4cyclictest3908896-21kworker/u8:0+flush-179:011:05:160
3835047995447,5cyclictest3908896-21kworker/u8:0+flush-179:011:10:150
3835047995443,8cyclictest3931511-21kworker/u8:3+flush-179:012:30:010
3835051995343,9cyclictest3878211-21kworker/u8:2+events_unbound09:30:131
3835051995343,9cyclictest3878211-21kworker/u8:2+events_unbound09:30:121
3835047995348,4cyclictest3833434-21kworker/u8:2+flush-179:007:30:150
3835047995344,7cyclictest3908929-21latency_hist11:00:010
3835051995245,5cyclictest3912346-21kworker/u8:1+flush-179:011:55:011
3835051995242,8cyclictest3833434-21kworker/u8:2+events_unbound07:35:011
3835047995245,5cyclictest3923547-21kworker/u8:2+events_unbound12:00:130
3835047995243,6cyclictest3889815-21kworker/u8:1+flush-179:010:00:200
3835051995145,5cyclictest3863634-21kworker/u8:3+flush-179:008:55:221
3835051995039,9cyclictest3897788-21apt-get10:25:111
3835051994941,7cyclictest3852710-21apt-get08:05:121
3835047994942,5cyclictest3931511-21kworker/u8:3+events_unbound12:35:180
3835047994942,5cyclictest3863634-21kworker/u8:3+events_unbound08:55:000
3835047994841,4cyclictest3855656-21kworker/u8:1+flush-179:008:30:250
4577091470,12ptp4l61490irq/134-eno1-TxRx-007:09:563
3835047994743,3cyclictest3855656-21kworker/u8:1+flush-179:008:21:340
3835047994641,4cyclictest3862530-21kworker/u8:2+events_unbound09:05:210
3835047994639,6cyclictest3833434-21kworker/u8:2+flush-179:007:15:240
3835047994637,6cyclictest3834893-21latency_hist07:10:030
3835051994541,3cyclictest1-21systemd10:40:001
3835051994537,6cyclictest3874417-21kworker/u8:0+flush-179:009:25:151
3835051994532,4cyclictest3852432-21kworker/u8:0+events_unbound08:25:001
3835051994527,16cyclictest3917311-21dpkg11:25:011
383505199450,1cyclictest0-21swapper/111:05:141
3835051994439,4cyclictest3886639-21kworker/u8:0+flush-179:010:10:211
3835051994438,5cyclictest3895913-21kworker/u8:3+events_unbound10:20:001
3835051994435,6cyclictest3846538-21kworker/u8:1+flush-179:008:00:001
3835051994425,17cyclictest0-21swapper/107:55:001
3835051994425,17cyclictest0-21swapper/107:55:001
3835051994416,26cyclictest0-21swapper/110:00:161
3835047994439,4cyclictest3923547-21kworker/u8:2+flush-179:012:05:190
3835047994338,4cyclictest3931511-21kworker/u8:3+flush-179:012:15:240
383504799432,39cyclictest3886132-21turbostat09:54:550
3835054994240,1cyclictest0-21swapper/310:40:003
3835051994236,5cyclictest3862530-21kworker/u8:2+flush-179:009:05:221
3835047994233,6cyclictest1213033-21systemd-journal11:54:330
3835054994139,1cyclictest0-21swapper/307:39:003
3835051994138,2cyclictest3844513-21munin-run07:40:001
3835047994130,8cyclictest3929867-21kworker/u8:0+events_unbound12:25:200
383505199401,25cyclictest0-21swapper/107:10:131
383505499390,4cyclictest3892764-21turbostat10:09:593
383505499390,4cyclictest3879775-21turbostat09:30:013
3835051993931,6cyclictest3903902-21latency_hist10:45:021
3835051993931,6cyclictest3903902-21latency_hist10:45:021
3835051993922,16cyclictest3910371-21unixbench-2d11:00:241
3835054993834,2cyclictest0-21swapper/307:55:593
3835054993833,4cyclictest3887981-21turbostat09:55:013
3835054993832,5cyclictest3865200-21turbostat08:45:013
3835054993832,5cyclictest3842880-21turbostat07:35:003
383505499380,3cyclictest3915294-21turbostat11:20:003
383505499380,35cyclictest0-21swapper/312:14:583
383505299380,36cyclictest0-21swapper/207:36:592
383505299380,35cyclictest0-21swapper/210:43:592
383505299380,35cyclictest0-21swapper/210:43:582
383505299380,35cyclictest0-21swapper/210:38:002
383505299380,35cyclictest0-21swapper/207:43:592
3835051993828,8cyclictest3865637-21cat08:45:021
3835047993832,5cyclictest3835521-21kworker/u8:0+flush-179:007:27:350
3835047993832,5cyclictest3835521-21kworker/u8:0+flush-179:007:27:340
3835052993734,2cyclictest0-21swapper/212:05:592
3835052993734,2cyclictest0-21swapper/209:17:592
383505299370,35cyclictest0-21swapper/209:30:592
383505299370,35cyclictest0-21swapper/209:30:592
383505299370,35cyclictest0-21swapper/208:53:592
383505299370,35cyclictest0-21swapper/207:12:002
3835051993718,17cyclictest714-21Xorg07:23:591
3835054993634,1cyclictest0-21swapper/310:46:593
3835054993634,1cyclictest0-21swapper/310:46:593
3835054993634,1cyclictest0-21swapper/310:30:593
3835054993634,1cyclictest0-21swapper/309:14:593
3835054993634,1cyclictest0-21swapper/309:07:593
3835054993634,1cyclictest0-21swapper/308:14:553
3835054993634,1cyclictest0-21swapper/307:23:593
3835054993633,2cyclictest0-21swapper/311:52:593
3835054993629,5cyclictest3913706-21turbostat11:15:003
383505499360,35cyclictest0-21swapper/309:43:593
383505499360,1cyclictest0-21swapper/311:35:003
383505499360,1cyclictest0-21swapper/311:35:003
383505499360,1cyclictest0-21swapper/310:12:593
383505499360,1cyclictest0-21swapper/308:24:553
3835052993633,2cyclictest0-21swapper/212:34:552
3835052993633,2cyclictest0-21swapper/211:50:002
3835052993633,2cyclictest0-21swapper/209:41:592
3835052993632,2cyclictest0-21swapper/210:13:582
383505299360,1cyclictest0-21swapper/210:07:002
3835054993533,1cyclictest0-21swapper/312:09:003
3835054993533,1cyclictest0-21swapper/311:41:593
3835054993533,1cyclictest0-21swapper/308:19:553
3835054993533,1cyclictest0-21swapper/308:01:593
3835054993530,4cyclictest3891182-21turbostat10:05:003
383505499350,1cyclictest0-21swapper/307:44:593
4577091340,6ptp4l441ktimers/309:59:563
3835054993432,1cyclictest0-21swapper/310:54:593
3835054993432,1cyclictest0-21swapper/310:24:593
3835054993432,1cyclictest0-21swapper/307:52:003
3835054993432,1cyclictest0-21swapper/307:51:593
3835054993432,1cyclictest0-21swapper/307:27:003
3835054993432,1cyclictest0-21swapper/307:26:593
383505199340,33cyclictest3937837-21apt-get12:30:031
3835054993331,1cyclictest0-21swapper/310:59:553
3835054993330,2cyclictest0-21swapper/312:24:003
3835052993330,2cyclictest0-21swapper/208:58:592
3835052993330,2cyclictest0-21swapper/208:20:582
3835054993231,1cyclictest0-21swapper/310:29:583
3835054993230,1cyclictest0-21swapper/309:22:003
3835054993227,4cyclictest3920326-21turbostat11:39:543
3835052993229,2cyclictest0-21swapper/209:04:552
3835054993130,1cyclictest0-21swapper/312:00:593
3835054993129,1cyclictest0-21swapper/310:44:593
3835054993129,1cyclictest0-21swapper/310:44:583
3835054993129,1cyclictest0-21swapper/308:39:593
3835054993129,1cyclictest0-21swapper/308:29:003
3835054993126,4cyclictest3838107-21turbostat07:20:003
3835052993130,1cyclictest0-21swapper/211:55:002
3835052993129,1cyclictest0-21swapper/207:50:002
3835052993128,2cyclictest0-21swapper/212:35:592
3835052993128,2cyclictest0-21swapper/209:09:562
3835054993029,1cyclictest0-21swapper/311:50:003
3835054993028,1cyclictest0-21swapper/311:27:583
383505499300,29cyclictest0-21swapper/309:15:123
3835052993027,2cyclictest0-21swapper/210:50:142
3835052993027,2cyclictest0-21swapper/209:26:592
3835052993027,2cyclictest0-21swapper/208:25:132
3835052993027,2cyclictest0-21swapper/208:15:002
3835052993027,2cyclictest0-21swapper/208:05:142
383505299300,2cyclictest0-21swapper/212:13:002
383505299300,23cyclictest0-21swapper/211:20:112
3835047993026,3cyclictest3855656-21kworker/u8:1+flush-179:008:17:550
4577091290,6ptp4l441ktimers/308:50:003
4577091290,6ptp4l441ktimers/308:35:003
3835054992927,1cyclictest0-21swapper/311:57:593
3835054992927,1cyclictest0-21swapper/307:49:583
3835052992927,1cyclictest0-21swapper/211:35:002
3835052992927,1cyclictest0-21swapper/211:34:592
3835052992926,2cyclictest0-21swapper/211:25:132
3835052992926,2cyclictest0-21swapper/211:19:552
3835052992926,2cyclictest0-21swapper/210:30:132
3835052992926,2cyclictest0-21swapper/210:25:132
3835052992926,2cyclictest0-21swapper/210:24:562
3835052992926,2cyclictest0-21swapper/209:50:022
3835052992926,2cyclictest0-21swapper/207:20:112
383505299290,28cyclictest0-21swapper/209:35:142
383505299290,27cyclictest0-21swapper/210:45:132
383505299290,27cyclictest0-21swapper/210:45:122
383505299290,27cyclictest0-21swapper/207:55:142
383505299290,1cyclictest0-21swapper/211:00:132
4577091280,5ptp4l441ktimers/309:50:013
3835054992826,1cyclictest0-21swapper/312:17:583
3835054992826,1cyclictest0-21swapper/311:08:593
3835054992825,2cyclictest0-21swapper/307:10:133
383505499280,27cyclictest0-21swapper/312:30:013
383505499280,26cyclictest0-21swapper/312:35:143
3835052992826,1cyclictest0-21swapper/212:25:142
3835052992825,2cyclictest0-21swapper/212:20:122
3835052992825,2cyclictest0-21swapper/209:10:132
3835052992825,2cyclictest0-21swapper/207:25:142
3835052992825,2cyclictest0-21swapper/207:25:132
383505299280,27cyclictest0-21swapper/207:30:132
383505299280,26cyclictest0-21swapper/211:05:142
383505299280,26cyclictest0-21swapper/209:45:132
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:35:003
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:35:003
4577091270,5ptp4l441ktimers/311:04:553
3835054992725,1cyclictest0-21swapper/309:03:593
3835054992722,4cyclictest3870229-21turbostat09:00:003
383505499270,1cyclictest0-21swapper/308:50:143
383505299270,1cyclictest0-21swapper/207:15:132
4577091260,5ptp4l61490irq/134-eno1-TxRx-009:40:003
3835054992624,1cyclictest0-21swapper/312:31:583
3835052992624,1cyclictest0-21swapper/211:59:592
3835052992623,2cyclictest0-21swapper/207:53:592
3835052992623,2cyclictest0-21swapper/207:53:592
383505299260,2cyclictest0-21swapper/211:10:592
383505299260,24cyclictest0-21swapper/210:59:582
383505299260,24cyclictest0-21swapper/208:38:592
3835054992523,1cyclictest0-21swapper/311:22:003
3835052992522,2cyclictest0-21swapper/212:18:582
383505299250,2cyclictest0-21swapper/211:37:002
3835052992422,1cyclictest0-21swapper/210:04:592
3835052992422,1cyclictest0-21swapper/208:45:132
3835052992421,2cyclictest0-21swapper/208:41:592
3835052992321,1cyclictest0-21swapper/211:40:122
3835052992219,2cyclictest0-21swapper/208:01:592
231999220,11rtkit-daemon3834089-21if_eno107:05:211
3835052992118,2cyclictest0-21swapper/208:33:592
3835052992118,2cyclictest0-21swapper/208:16:592
3835052991916,2cyclictest0-21swapper/210:16:592
3835052991816,1cyclictest0-21swapper/212:02:582
38350529951,2cyclictest0-21swapper/209:55:242
38350529930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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