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2026-08-18 - 17:55
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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 Aug 18, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8905099148137,8cyclictest140568-21latency_hist09:50:011
8905099135128,5cyclictest150428-21kworker/u8:3+events_unbound10:50:001
8905099135126,6cyclictest143758-21latency_hist10:00:011
8905099132123,7cyclictest1213033-21systemd-journal11:15:001
8905099132120,9cyclictest1213033-21systemd-journal07:45:001
8905099130124,4cyclictest155137-21kworker/u8:0+flush-179:011:00:011
8905099130118,10cyclictest510-21rs:main1
8905099127117,8cyclictest98705-21kworker/u8:0+flush-179:007:55:011
8905099126120,4cyclictest155137-21kworker/u8:0+flush-179:011:00:251
8904799126114,9cyclictest131009-21latency_hist09:20:000
8905099122116,4cyclictest180072-21kworker/u8:0+events_unbound11:50:251
8904799122111,8cyclictest145348-21latency_hist10:05:000
8905099121115,4cyclictest189435-21kworker/u8:0+events_unbound12:40:011
8905099120114,4cyclictest173427-21kworker/u8:1+events_unbound12:04:591
8905099120113,5cyclictest86648-21kworker/u8:1+flush-179:007:35:001
8905099120112,5cyclictest86648-21kworker/u8:1+events_unbound07:15:141
8905099117111,3cyclictest150428-21kworker/u8:3+events_unbound10:55:011
8904799117107,6cyclictest180072-21kworker/u8:0+flush-179:011:50:010
8905099115107,6cyclictest146396-21kworker/u8:2+flush-179:010:10:151
8905099115103,5cyclictest88848-21kworker/u8:3+events_unbound07:40:001
8904799115105,7cyclictest146396-21kworker/u8:2+flush-179:010:30:170
890509911388,17cyclictest119400-21kworker/u8:3+flush-179:008:55:241
8905099113103,7cyclictest1213033-21systemd-journal08:35:011
8905099112102,7cyclictest143145-21kworker/u8:0+events_unbound10:05:241
8905099111105,4cyclictest127606-21kworker/u8:0+events_unbound09:20:231
8905099111104,5cyclictest98705-21kworker/u8:0+flush-179:008:30:001
8905099111103,6cyclictest155137-21kworker/u8:0+flush-179:011:25:001
8904799111101,7cyclictest113978-21journal-offline08:25:220
890509911097,11cyclictest1213033-21systemd-journal09:10:001
8905099110104,4cyclictest173427-21kworker/u8:1+flush-179:011:45:211
8905099110104,4cyclictest143145-21kworker/u8:0+flush-179:010:00:241
8905099110101,6cyclictest104391-21kworker/u8:1+flush-179:008:10:201
8905099108103,4cyclictest173427-21kworker/u8:1+flush-179:011:45:001
890479910898,7cyclictest88782-21latency_hist07:10:030
890479910895,9cyclictest148530-21apt-get10:15:010
8905099107101,4cyclictest86648-21kworker/u8:1+flush-179:007:25:251
890479910791,12cyclictest95485-21kworker/u8:2+flush-179:007:45:210
890509910699,6cyclictest185107-21kworker/u8:3+flush-179:012:10:241
890509910396,5cyclictest124736-21kworker/u8:1+flush-179:009:15:231
890509910296,4cyclictest127606-21kworker/u8:0+flush-179:009:25:151
890509910296,4cyclictest101868-21kworker/u8:3+events_unbound07:55:201
890509910295,6cyclictest132656-21kworker/u8:3+flush-179:009:50:241
890509910292,8cyclictest150648-21apt-get10:20:121
890509910289,4cyclictest173427-21kworker/u8:1+events_unbound12:05:241
890509910196,4cyclictest109225-21kworker/u8:2+flush-179:008:45:271
890509910195,4cyclictest173427-21kworker/u8:1+flush-179:011:30:211
890509910192,6cyclictest138981-21latency_hist09:45:001
890509910096,3cyclictest119400-21kworker/u8:3+flush-179:009:00:211
890509910095,4cyclictest109225-21kworker/u8:2+flush-179:008:45:001
89050999994,4cyclictest189435-21kworker/u8:0+flush-179:012:15:251
89050999991,6cyclictest104391-21kworker/u8:1+flush-179:008:00:251
89050999981,16cyclictest173427-21kworker/u8:1+flush-179:012:00:001
89047999788,6cyclictest146396-21kworker/u8:2+flush-179:010:15:160
89047999581,11cyclictest188298-21latency_hist12:15:010
89050999485,6cyclictest146396-21kworker/u8:2+events_unbound10:30:211
89047999486,6cyclictest90656-21latency_hist07:15:020
89047999386,5cyclictest135787-21latency_hist09:35:010
89050999286,4cyclictest86648-21kworker/u8:1+flush-179:007:10:211
89050999284,5cyclictest109225-21kworker/u8:2+flush-179:008:50:201
89047999280,10cyclictest129161-21apt-get09:15:000
89047999276,12cyclictest1213033-21systemd-journal09:05:020
89050999186,4cyclictest124736-21kworker/u8:1+flush-179:009:14:551
89050999085,3cyclictest132588-21kworker/u8:2+events_unbound09:35:001
89050999084,5cyclictest150428-21kworker/u8:3+flush-179:010:35:251
89050999081,6cyclictest168444-21kworker/u8:3+events_unbound11:15:201
89050998780,4cyclictest150343-21kworker/u8:1+flush-179:010:25:241
89050998779,5cyclictest108202-21latency_hist08:10:001
89047998678,5cyclictest98705-21kworker/u8:0+flush-179:008:10:200
89050998576,6cyclictest150428-21kworker/u8:3+flush-179:010:40:261
89050998574,8cyclictest176646-21latency_hist11:40:011
89047998576,6cyclictest188812-21apt-get12:15:120
89050998476,5cyclictest189435-21kworker/u8:0+flush-179:012:30:151
89050998375,5cyclictest104391-21kworker/u8:1+events_unbound08:15:241
89047998373,8cyclictest185107-21kworker/u8:3+flush-179:012:25:210
89047998369,10cyclictest104391-21kworker/u8:1+flush-179:007:55:230
89047998273,7cyclictest1213033-21systemd-journal12:05:380
89050998174,5cyclictest98705-21kworker/u8:0+flush-179:008:35:191
89050998174,3cyclictest185107-21kworker/u8:3+flush-179:012:20:161
89050998171,7cyclictest137379-21latency_hist09:40:011
89047998170,9cyclictest110044-21apt-get08:15:110
89047998170,8cyclictest119400-21kworker/u8:3+flush-179:009:00:210
89050998075,4cyclictest86648-21kworker/u8:1+flush-179:007:20:251
89047998074,5cyclictest150428-21kworker/u8:3+events_unbound10:50:240
89050997971,5cyclictest146396-21kworker/u8:2+events_unbound10:15:241
89047997970,6cyclictest159012-21kworker/u8:1+events_unbound10:45:220
89047997969,7cyclictest155137-21kworker/u8:0+flush-179:011:20:230
89047997872,4cyclictest146396-21kworker/u8:2+flush-179:010:25:170
89047997869,7cyclictest109225-21kworker/u8:2+flush-179:008:20:230
89047997868,8cyclictest86648-21kworker/u8:1+events_unbound07:25:250
89047997868,7cyclictest138419-21kworker/u8:1+events_unbound10:00:010
89047997867,7cyclictest155137-21kworker/u8:0+flush-179:011:15:170
89047997767,7cyclictest173427-21kworker/u8:1+events_unbound11:35:240
89047997668,5cyclictest180072-21kworker/u8:0+flush-179:012:00:170
89050997571,2cyclictest166823-21latency_hist11:10:011
89050997568,5cyclictest98705-21kworker/u8:0+flush-179:008:20:151
89047997566,6cyclictest127606-21kworker/u8:0+events_unbound09:25:210
89047997467,4cyclictest146935-21latency_hist10:10:010
89047997465,7cyclictest127606-21kworker/u8:0+flush-179:009:35:250
89047997362,8cyclictest173427-21kworker/u8:1+flush-179:011:30:220
89047997361,9cyclictest86648-21kworker/u8:1+flush-179:007:30:230
89047997269,2cyclictest109225-21kworker/u8:2+events_unbound08:35:230
89047997265,5cyclictest127606-21kworker/u8:0+flush-179:009:40:170
89050997165,4cyclictest185107-21kworker/u8:3+flush-179:012:25:211
89047997159,10cyclictest1213033-21systemd-journal12:35:000
89047997065,3cyclictest104391-21kworker/u8:1+flush-179:008:01:010
89047996960,7cyclictest163119-21apt-get11:00:000
89047996960,6cyclictest132656-21kworker/u8:3+flush-179:009:45:120
89047996954,13cyclictest157017-21apt-get10:40:130
89047996935,32cyclictest510-21rs:main0
89047996859,6cyclictest86648-21kworker/u8:1+flush-179:007:20:170
89047996759,5cyclictest104391-21kworker/u8:1+flush-179:008:05:160
89047996654,10cyclictest1213033-21systemd-journal07:40:160
89047996360,2cyclictest101868-21kworker/u8:3+events_unbound07:50:140
89047996359,2cyclictest714-21Xorg08:43:590
89047996357,4cyclictest120942-21latency_hist08:50:000
89047996154,5cyclictest88848-21kworker/u8:3+flush-179:007:35:240
89047996150,9cyclictest165901-21kworker/u8:1+flush-179:011:05:210
89047995951,6cyclictest109225-21kworker/u8:2+events_unbound08:50:120
89047995754,2cyclictest127606-21kworker/u8:0+events_unbound09:20:220
89047995652,3cyclictest185107-21kworker/u8:3+flush-179:012:20:260
89047995546,7cyclictest196790-21latency_hist12:40:020
89050995348,4cyclictest173427-21kworker/u8:1+events_unbound11:29:291
89047995347,4cyclictest86648-21kworker/u8:1+flush-179:007:15:220
89047995346,5cyclictest155137-21kworker/u8:0+flush-179:011:25:170
89047995246,5cyclictest173427-21kworker/u8:1+flush-179:011:44:550
89060995048,1cyclictest0-21swapper/309:20:583
89047995042,6cyclictest150428-21kworker/u8:3+events_unbound10:35:150
89047994933,2cyclictest0-21swapper/009:50:110
4577091490,10ptp4l441ktimers/307:05:183
89060994745,1cyclictest0-21swapper/312:18:593
89047994739,6cyclictest155137-21kworker/u8:0+flush-179:011:10:180
89055994542,2cyclictest0-21swapper/208:05:592
89047994340,2cyclictest150343-21kworker/u8:1+events_unbound10:20:160
89047994336,5cyclictest119400-21kworker/u8:3+events_unbound08:55:250
89047994236,5cyclictest180072-21kworker/u8:0+flush-179:011:50:220
89047994236,5cyclictest109225-21kworker/u8:2+flush-179:008:30:170
8905599410,1cyclictest0-21swapper/207:26:592
8906099400,38cyclictest90665-21turbostat07:15:013
89055994036,2cyclictest0-21swapper/208:36:592
8905599400,37cyclictest0-21swapper/210:34:552
89060993933,5cyclictest140577-21turbostat09:50:003
8906099390,4cyclictest101837-21turbostat07:50:003
8906099390,38cyclictest191762-21turbostat12:25:003
8906099390,37cyclictest93856-21turbostat07:25:003
8905599390,36cyclictest0-21swapper/210:55:012
8905599390,36cyclictest0-21swapper/207:54:552
89060993832,5cyclictest92259-21turbostat07:20:003
8906099380,37cyclictest175057-21turbostat11:35:003
8906099380,31cyclictest119370-21turbostat08:45:003
89055993835,2cyclictest0-21swapper/211:42:592
89055993834,2cyclictest0-21swapper/209:37:592
8905599380,35cyclictest0-21swapper/210:15:002
89060993734,2cyclictest181683-21turbostat11:55:003
89060993730,5cyclictest134211-21turbostat09:30:003
8906099370,36cyclictest0-21swapper/310:47:593
8906099370,1cyclictest0-21swapper/308:32:593
89055993734,2cyclictest0-21swapper/209:23:592
89047993728,7cyclictest173427-21kworker/u8:1+flush-179:011:55:240
89060993634,1cyclictest0-21swapper/307:54:593
89060993633,2cyclictest0-21swapper/308:23:003
8906099360,1cyclictest0-21swapper/310:37:593
8906099360,1cyclictest0-21swapper/309:56:003
89055993634,1cyclictest0-21swapper/211:04:592
89055993634,1cyclictest0-21swapper/209:00:012
89055993633,2cyclictest0-21swapper/210:07:592
89060993530,4cyclictest150391-21turbostat10:20:003
89055993533,1cyclictest0-21swapper/208:34:592
8905599350,1cyclictest0-21swapper/208:25:012
4577091350,3ptp4l431rcuc/309:39:593
89060993432,1cyclictest0-21swapper/308:10:593
89060993431,2cyclictest0-21swapper/309:14:593
89060993429,4cyclictest120949-21turbostat08:49:593
89055993432,1cyclictest0-21swapper/211:00:002
89055993431,2cyclictest0-21swapper/212:27:592
89055993431,2cyclictest0-21swapper/210:38:592
89055993431,2cyclictest0-21swapper/208:10:592
89055993427,6cyclictest0-21swapper/209:56:592
8905599340,2cyclictest0-21swapper/209:10:142
8905599340,28cyclictest0-21swapper/210:20:132
4577091340,3ptp4l441ktimers/310:00:143
4577091340,3ptp4l441ktimers/307:55:143
89060993331,1cyclictest0-21swapper/311:07:593
89060993331,1cyclictest0-21swapper/308:59:593
8905599330,2cyclictest0-21swapper/211:45:132
8905599330,2cyclictest0-21swapper/207:45:142
8905599330,1cyclictest0-21swapper/209:45:142
89060993230,1cyclictest0-21swapper/312:36:003
89060993225,6cyclictest180097-21turbostat11:50:003
89055993230,1cyclictest0-21swapper/211:30:012
89055993230,1cyclictest0-21swapper/211:10:012
89055993229,2cyclictest0-21swapper/211:23:592
89055993229,2cyclictest0-21swapper/209:00:592
89055993222,8cyclictest0-21swapper/208:54:592
89055993220,9cyclictest0-21swapper/211:20:002
8905599320,2cyclictest0-21swapper/208:48:582
89060993129,1cyclictest0-21swapper/308:29:593
89055993128,1cyclictest0-21swapper/207:35:012
89060993029,1cyclictest0-21swapper/307:42:003
89060993028,1cyclictest0-21swapper/311:12:593
89060993027,2cyclictest0-21swapper/312:30:023
89060993027,2cyclictest0-21swapper/309:15:023
89060993024,5cyclictest146942-21turbostat10:10:003
8906099300,28cyclictest0-21swapper/307:35:133
89055993027,2cyclictest0-21swapper/212:15:022
89055993027,2cyclictest0-21swapper/209:15:022
8905599300,2cyclictest0-21swapper/212:30:022
8905599300,2cyclictest0-21swapper/208:40:142
8905599300,28cyclictest0-21swapper/208:28:002
89050993026,2cyclictest89212-21apt-key07:10:031
89060992927,1cyclictest0-21swapper/312:10:593
89060992927,1cyclictest0-21swapper/310:40:153
8906099290,27cyclictest0-21swapper/312:30:013
8906099290,1cyclictest0-21swapper/311:35:133
8905599290,27cyclictest0-21swapper/212:00:012
8905599290,27cyclictest0-21swapper/211:35:132
8905599290,27cyclictest0-21swapper/211:10:132
8905599290,27cyclictest0-21swapper/208:15:122
8905599290,27cyclictest0-21swapper/207:35:142
89060992826,1cyclictest0-21swapper/311:00:013
89060992826,1cyclictest0-21swapper/307:29:593
89060992823,4cyclictest171883-21turbostat11:25:003
8906099280,2cyclictest0-21swapper/312:00:013
8906099280,27cyclictest0-21swapper/312:00:013
8906099280,27cyclictest0-21swapper/311:25:143
8906099280,26cyclictest0-21swapper/311:40:033
8906099280,26cyclictest0-21swapper/310:25:143
8906099280,26cyclictest0-21swapper/310:20:133
8906099280,26cyclictest0-21swapper/308:50:133
89055992825,2cyclictest0-21swapper/209:40:122
89055992824,2cyclictest0-21swapper/212:14:542
8905599280,26cyclictest0-21swapper/210:40:152
89060992725,1cyclictest0-21swapper/311:00:013
89060992725,1cyclictest0-21swapper/310:10:143
8906099270,26cyclictest0-21swapper/309:30:133
8906099270,26cyclictest0-21swapper/308:15:133
8906099270,26cyclictest0-21swapper/308:05:583
8906099270,26cyclictest0-21swapper/308:00:143
8906099270,1cyclictest0-21swapper/311:15:143
89055992724,2cyclictest0-21swapper/210:25:592
89055992718,7cyclictest0-21swapper/207:23:002
8905599270,18cyclictest0-21swapper/212:07:002
4577091270,3ptp4l441ktimers/310:55:003
4577091270,3ptp4l441ktimers/309:55:013
89060992621,4cyclictest117780-21turbostat08:40:013
89055992624,1cyclictest0-21swapper/209:35:012
89055992623,2cyclictest0-21swapper/212:23:592
89055992623,2cyclictest0-21swapper/210:46:592
89055992623,2cyclictest0-21swapper/210:04:562
89055992623,2cyclictest0-21swapper/207:42:592
4577091260,5ptp4l441ktimers/312:09:593
89060992523,1cyclictest0-21swapper/310:32:593
89060992523,1cyclictest0-21swapper/307:32:593
89055992523,1cyclictest0-21swapper/212:40:012
89055992523,1cyclictest0-21swapper/209:29:592
89055992523,1cyclictest0-21swapper/208:04:592
89055992523,1cyclictest0-21swapper/208:00:002
89055992522,2cyclictest0-21swapper/209:07:592
4577091250,3ptp4l61490irq/134-eno1-TxRx-009:45:013
4577091250,3ptp4l441ktimers/309:05:003
89055992421,2cyclictest0-21swapper/211:56:582
89055992420,2cyclictest0-21swapper/209:50:582
4577091240,4ptp4l441ktimers/309:09:563
89055992219,2cyclictest0-21swapper/211:52:592
89055992219,2cyclictest0-21swapper/207:15:592
89055992215,6cyclictest0-21swapper/207:11:002
89055991916,2cyclictest0-21swapper/211:34:562
89055991815,2cyclictest0-21swapper/210:15:032
890559990,1cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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