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2026-05-01 - 22:06
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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 376 highest latencies:
System rackeslot6.osadl.org (updated Fri May 01, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
729604999887,9cyclictest822993-21apt-get12:00:000
729604999687,6cyclictest732754-21latency_hist07:20:010
729604999589,4cyclictest762000-21kworker/u8:2+events_unbound09:15:240
729604998980,7cyclictest715475-21kworker/u8:2+events_unbound07:30:000
729604998680,4cyclictest776582-21kworker/u8:1+events_unbound09:45:000
729604998579,4cyclictest794137-21kworker/u8:3+events_unbound11:24:590
729604998376,5cyclictest715475-21kworker/u8:2+flush-179:007:35:220
729604998375,6cyclictest750588-21kworker/u8:0+events_unbound08:20:000
729604998277,4cyclictest794137-21kworker/u8:3+flush-179:011:40:010
729604998273,6cyclictest826445-21latency_hist12:10:020
729606998169,10cyclictest821943-21diskstats11:55:151
729604998173,7cyclictest816883-21kworker/u8:0+events_unbound11:45:240
729606998072,6cyclictest749005-21kworker/u8:1+flush-179:008:30:201
729606997970,7cyclictest1213033-21systemd-journal10:55:001
729606997959,17cyclictest1213033-21systemd-journal12:37:561
729604997970,6cyclictest782504-21kworker/u8:1+flush-179:009:55:190
729606997868,8cyclictest754303-21/usr/sbin/munin08:25:231
729611997769,5cyclictest741093-21turbostat07:45:003
729604997772,3cyclictest807126-21unin-run11:10:010
729604997771,4cyclictest832799-21kworker/u8:3+flush-179:012:35:190
729604997770,6cyclictest792493-21kworker/u8:2+flush-179:011:05:000
729606997665,9cyclictest749279-21apt-get08:10:111
729604997670,5cyclictest753782-21kworker/u8:2+flush-179:008:40:010
729604997668,6cyclictest741120-21kworker/u8:1+events_unbound08:00:010
729606997567,6cyclictest776592-21latency_hist09:35:001
729604997570,4cyclictest794137-21kworker/u8:3+events_unbound10:55:240
729604997567,5cyclictest749005-21kworker/u8:1+events_unbound08:10:240
729606997468,4cyclictest787715-21kworker/u8:0+flush-179:010:20:011
729606997463,9cyclictest802565-21apt-get10:55:111
729604997463,5cyclictest794137-21kworker/u8:3+events_unbound11:40:230
729606997366,5cyclictest715475-21kworker/u8:2+events_unbound07:15:261
729604997366,5cyclictest773397-21kworker/u8:2+flush-179:009:40:000
729604997268,3cyclictest794137-21kworker/u8:3+flush-179:011:15:250
729606997059,9cyclictest1213033-21systemd-journal08:25:001
729604997063,5cyclictest763584-21kworker/u8:0+events_unbound09:00:210
729604997063,5cyclictest763584-21kworker/u8:0+events_unbound09:00:210
729606996960,6cyclictest1213033-21systemd-journal07:46:521
729604996964,4cyclictest715475-21kworker/u8:2+flush-179:007:40:020
729604996963,4cyclictest715475-21kworker/u8:2+flush-179:007:30:230
72960499692,64cyclictest1-21systemd10:32:550
729606996858,8cyclictest1213033-21systemd-journal08:40:001
729604996861,5cyclictest770201-21kworker/u8:0+events_unbound09:20:130
729604996857,9cyclictest797809-21apt-get10:40:100
729606996762,4cyclictest762000-21kworker/u8:2+flush-179:009:15:161
729606996758,6cyclictest834401-21latency_hist12:35:011
729606996660,5cyclictest794137-21kworker/u8:3+flush-179:012:00:161
729606996659,5cyclictest794137-21kworker/u8:3+flush-179:012:10:201
729606996657,7cyclictest749005-21kworker/u8:1+flush-179:008:15:171
729604996660,4cyclictest782504-21kworker/u8:1+flush-179:010:10:200
72961099650,62cyclictest0-21swapper/211:27:592
729606996560,4cyclictest760411-21kworker/u8:1+flush-179:008:49:561
729604996560,4cyclictest824774-21kworker/u8:2+flush-179:012:05:000
729606996451,10cyclictest776847-21apt-get09:35:111
729604996458,4cyclictest773397-21kworker/u8:2+events_unbound09:25:190
729604996455,6cyclictest715475-21kworker/u8:2+flush-179:007:45:140
729606996358,4cyclictest737491-21kworker/u8:1+flush-179:007:34:521
729606996357,4cyclictest816883-21kworker/u8:0+flush-179:011:45:231
729604996357,5cyclictest803874-21kworker/u8:0+events_unbound11:25:220
729604996349,5cyclictest744482-21kworker/u8:3+events_unbound08:00:140
729606996254,6cyclictest794137-21kworker/u8:3+flush-179:011:10:231
729606996250,10cyclictest787992-21apt-get10:10:111
729604996257,4cyclictest767030-21kworker/u8:1+flush-179:009:10:210
729606996156,3cyclictest792493-21kworker/u8:2+flush-179:010:35:151
729606996155,4cyclictest762000-21kworker/u8:2+events_unbound08:55:231
729606996154,5cyclictest773397-21kworker/u8:2+flush-179:009:40:211
729604996157,3cyclictest760411-21kworker/u8:1+events_unbound08:45:240
729604996156,4cyclictest794137-21kworker/u8:3+events_unbound12:15:000
729604996149,10cyclictest1213033-21systemd-journal12:19:590
729606996054,5cyclictest782504-21kworker/u8:1+events_unbound10:05:001
729606996054,4cyclictest782504-21kworker/u8:1+flush-179:010:44:561
729606996050,7cyclictest792516-21latency_hist10:25:011
729606996050,7cyclictest792516-21latency_hist10:25:001
729604996054,4cyclictest760411-21kworker/u8:1+flush-179:008:50:250
729604996053,4cyclictest750588-21kworker/u8:0+events_unbound08:20:180
729604996052,6cyclictest816883-21kworker/u8:0+events_unbound11:50:180
729606995954,4cyclictest715475-21kworker/u8:2+flush-179:007:54:561
729604995955,3cyclictest782504-21kworker/u8:1+flush-179:009:55:010
729604995952,5cyclictest832799-21kworker/u8:3+flush-179:012:30:010
729604995854,3cyclictest794137-21kworker/u8:3+flush-179:010:35:240
729606995751,4cyclictest794137-21kworker/u8:3+flush-179:011:05:251
729604995752,4cyclictest794137-21kworker/u8:3+events_unbound10:55:000
729606995651,4cyclictest782504-21kworker/u8:1+flush-179:010:09:551
729606995651,3cyclictest770201-21kworker/u8:0+flush-179:009:20:141
729604995640,5cyclictest794137-21kworker/u8:3+events_unbound11:10:190
729606995549,4cyclictest792493-21kworker/u8:2+flush-179:011:00:231
729606995542,12cyclictest826428-21kworker/u8:0+flush-179:012:19:551
729604995549,4cyclictest762000-21kworker/u8:2+flush-179:009:05:150
729604995548,6cyclictest782504-21kworker/u8:1+flush-179:010:45:140
729606995449,4cyclictest782937-21kworker/u8:3+flush-179:009:54:521
729606995347,4cyclictest794137-21kworker/u8:3+events_unbound10:45:231
729606995247,4cyclictest763584-21kworker/u8:0+flush-179:009:00:261
729606995247,4cyclictest763584-21kworker/u8:0+flush-179:009:00:251
729606995247,4cyclictest715475-21kworker/u8:2+flush-179:007:29:561
729606995247,3cyclictest762000-21kworker/u8:2+flush-179:009:05:141
729604995244,7cyclictest749005-21kworker/u8:1+events_unbound08:25:020
729606995146,4cyclictest715475-21kworker/u8:2+flush-179:007:20:201
729606995146,4cyclictest715475-21kworker/u8:2+flush-179:007:20:191
729604995145,4cyclictest715475-21kworker/u8:2+events_unbound07:20:120
729604995145,4cyclictest715475-21kworker/u8:2+events_unbound07:20:120
729606995046,3cyclictest760411-21kworker/u8:1+flush-179:008:50:211
729606995043,5cyclictest760411-21kworker/u8:1+events_unbound08:45:001
729604995045,4cyclictest773397-21kworker/u8:2+events_unbound09:45:530
729604995045,3cyclictest776568-21sshd09:30:510
729606994944,4cyclictest728013-21kworker/u8:0+flush-179:007:35:141
729606994943,5cyclictest745866-21latency_hist08:00:001
729606994939,8cyclictest1213033-21systemd-journal12:30:001
729604994943,4cyclictest794102-21latency_hist10:30:010
729604994939,8cyclictest747696-21apt-get08:05:120
4577091490,13ptp4l441ktimers/307:09:573
729606994839,8cyclictest792770-21apt-get10:25:121
729606994839,7cyclictest810521-21/usr/sbin/munin11:20:231
729604994842,4cyclictest794137-21kworker/u8:3+flush-179:011:30:110
729604994841,4cyclictest763584-21kworker/u8:0+flush-179:009:00:000
729606994741,4cyclictest794137-21kworker/u8:3+flush-179:011:15:161
729606994640,4cyclictest826495-21kworker/u8:1+flush-179:012:20:201
729604994641,4cyclictest826495-21kworker/u8:1+flush-179:012:30:570
72960499461,43cyclictest831238-21awk12:25:010
729606994540,4cyclictest744482-21kworker/u8:3+flush-179:008:04:521
729606994539,5cyclictest794137-21kworker/u8:3+flush-179:012:05:171
729604994541,3cyclictest782504-21kworker/u8:1+events_unbound10:01:520
729604994540,4cyclictest715475-21kworker/u8:2+events_unbound07:50:230
729606994439,3cyclictest794137-21kworker/u8:3+events_unbound11:30:211
729606994431,12cyclictest715475-21kworker/u8:2+flush-179:007:45:001
729611994341,1cyclictest0-21swapper/311:28:003
729611994338,4cyclictest819825-21turbostat11:50:003
729610994340,2cyclictest0-21swapper/211:32:592
729606994337,5cyclictest794137-21kworker/u8:3+events_unbound11:40:201
729606994237,4cyclictest773397-21kworker/u8:2+events_unbound09:25:231
729604994237,4cyclictest787715-21kworker/u8:0+events_unbound10:19:590
729604994226,12cyclictest1213033-21systemd-journal10:10:000
729606994136,4cyclictest816883-21kworker/u8:0+flush-179:011:50:151
729606994134,6cyclictest1213033-21systemd-journal10:32:551
729604994136,3cyclictest757218-21kworker/u8:0+events_unbound08:34:380
72960499412,38cyclictest792531-21ls10:25:000
72960499412,38cyclictest792531-21ls10:25:000
729604994035,4cyclictest757218-21kworker/u8:0+events_unbound08:43:510
729611993934,4cyclictest787745-21turbostat10:10:003
729610993936,2cyclictest0-21swapper/207:34:542
72961199380,37cyclictest767062-21turbostat09:04:593
72961199380,37cyclictest767062-21turbostat09:04:593
72961099380,36cyclictest0-21swapper/212:39:002
72961099380,35cyclictest0-21swapper/210:00:002
729604993834,3cyclictest715475-21kworker/u8:2+events_unbound07:10:250
729611993736,1cyclictest0-21swapper/310:24:563
729611993736,1cyclictest0-21swapper/310:24:563
729610993734,2cyclictest0-21swapper/210:32:592
729610993734,2cyclictest0-21swapper/207:39:582
729610993733,2cyclictest0-21swapper/208:39:562
729606993733,3cyclictest715475-21kworker/u8:2+flush-179:007:10:201
729606993732,4cyclictest794137-21kworker/u8:3+events_unbound11:35:201
729606993730,5cyclictest770224-21latency_hist09:15:011
729611993634,1cyclictest0-21swapper/311:01:003
729611993633,2cyclictest0-21swapper/307:17:593
72961199360,35cyclictest0-21swapper/311:12:003
72961199360,35cyclictest0-21swapper/310:49:553
72961199360,1cyclictest0-21swapper/307:29:593
729610993633,2cyclictest0-21swapper/209:10:592
729610993633,2cyclictest0-21swapper/209:06:592
729610993633,2cyclictest0-21swapper/208:59:562
729610993633,2cyclictest0-21swapper/208:15:002
729610993633,2cyclictest0-21swapper/207:21:002
729610993633,2cyclictest0-21swapper/207:20:592
72961099360,1cyclictest0-21swapper/210:53:582
729606993633,2cyclictest0-21swapper/111:30:001
729611993533,1cyclictest0-21swapper/312:24:543
729610993532,2cyclictest0-21swapper/212:25:592
729610993532,2cyclictest0-21swapper/211:59:552
729610993532,2cyclictest0-21swapper/211:18:592
729610993532,2cyclictest0-21swapper/209:44:592
729610993532,2cyclictest0-21swapper/209:29:562
729610993532,2cyclictest0-21swapper/208:23:592
729611993432,1cyclictest826448-21turbostat12:10:013
729611993432,1cyclictest0-21swapper/311:40:593
729611993432,1cyclictest0-21swapper/308:58:593
729610993432,1cyclictest0-21swapper/207:50:002
729610993431,2cyclictest0-21swapper/210:46:002
729610993431,2cyclictest0-21swapper/209:55:012
729606993431,2cyclictest0-21swapper/109:55:591
729611993331,1cyclictest0-21swapper/310:44:553
729611993331,1cyclictest0-21swapper/309:16:593
729611993328,4cyclictest757246-21turbostat08:35:013
729610993331,1cyclictest0-21swapper/208:49:582
729606993328,4cyclictest780021-21kworker/u8:0+events_unbound09:45:171
729606993327,4cyclictest744482-21kworker/u8:3+events_unbound08:10:021
4577091330,11ptp4l441ktimers/308:40:013
729611993230,1cyclictest0-21swapper/312:34:583
729611993230,1cyclictest0-21swapper/308:04:593
729611993230,1cyclictest0-21swapper/307:10:593
729611993226,5cyclictest795693-21turbostat10:35:003
729610993230,1cyclictest0-21swapper/210:40:002
729610993230,1cyclictest0-21swapper/208:05:012
729610993229,2cyclictest0-21swapper/207:20:012
729611993129,1cyclictest0-21swapper/312:19:583
729611993129,1cyclictest0-21swapper/311:22:583
729611993129,1cyclictest0-21swapper/309:47:593
729611993129,1cyclictest0-21swapper/308:18:003
729611993126,4cyclictest749035-21turbostat08:10:003
729611993125,4cyclictest744262-21turbostat07:54:593
72961199310,29cyclictest0-21swapper/307:30:123
72961099310,29cyclictest0-21swapper/210:08:592
729611993028,1cyclictest0-21swapper/307:49:553
72961199300,28cyclictest0-21swapper/309:35:123
729610993028,1cyclictest0-21swapper/209:15:132
729610993028,1cyclictest0-21swapper/208:45:002
729610993028,1cyclictest0-21swapper/208:30:002
729610993027,2cyclictest0-21swapper/211:04:552
72961099300,2cyclictest0-21swapper/209:35:122
72961099300,28cyclictest0-21swapper/207:10:132
4577091300,3ptp4l441ktimers/309:34:563
729611992927,1cyclictest0-21swapper/309:10:123
729611992927,1cyclictest0-21swapper/308:15:003
72961199290,28cyclictest0-21swapper/312:00:013
72961199290,28cyclictest0-21swapper/312:00:013
72961199290,27cyclictest0-21swapper/307:35:123
729610992927,1cyclictest0-21swapper/210:05:002
729610992926,2cyclictest0-21swapper/211:50:122
729610992926,2cyclictest0-21swapper/209:45:142
72961099290,2cyclictest0-21swapper/208:15:132
72961099290,28cyclictest0-21swapper/207:40:022
72961099290,27cyclictest0-21swapper/212:00:022
72961099290,27cyclictest0-21swapper/210:55:122
72961099290,27cyclictest0-21swapper/210:10:122
72961099290,27cyclictest0-21swapper/209:30:122
72961099290,27cyclictest0-21swapper/208:30:112
72961099290,27cyclictest0-21swapper/207:55:102
4577091290,7ptp4l441ktimers/307:25:003
4577091290,7ptp4l441ktimers/307:25:003
729611992826,1cyclictest0-21swapper/310:55:123
729611992826,1cyclictest0-21swapper/310:54:563
729611992826,1cyclictest0-21swapper/309:57:593
729611992826,1cyclictest0-21swapper/307:55:113
729611992825,2cyclictest0-21swapper/311:50:123
72961199280,27cyclictest0-21swapper/310:35:033
72961199280,27cyclictest0-21swapper/310:19:593
72961199280,26cyclictest0-21swapper/309:40:123
729610992825,2cyclictest0-21swapper/212:10:122
729610992825,2cyclictest0-21swapper/212:05:122
729610992825,2cyclictest0-21swapper/211:20:132
729610992825,2cyclictest0-21swapper/209:20:112
729610992825,2cyclictest0-21swapper/207:53:582
72961099280,2cyclictest0-21swapper/212:20:122
72961099280,2cyclictest0-21swapper/208:50:132
72961099280,26cyclictest0-21swapper/211:09:592
729611992725,1cyclictest0-21swapper/309:28:593
729611992725,1cyclictest0-21swapper/308:50:143
72961199270,26cyclictest0-21swapper/308:25:023
729611992624,1cyclictest0-21swapper/311:05:583
729611992624,1cyclictest0-21swapper/308:46:593
729610992623,2cyclictest0-21swapper/212:30:592
729610992623,2cyclictest0-21swapper/210:40:122
729610992623,2cyclictest0-21swapper/207:27:592
72961099260,24cyclictest0-21swapper/210:25:132
4577091260,4ptp4l61490irq/134-eno1-TxRx-010:05:003
4577091260,4ptp4l61490irq/134-eno1-TxRx-009:24:573
4577091260,4ptp4l441ktimers/312:39:593
4577091260,4ptp4l441ktimers/311:40:013
4577091260,4ptp4l441ktimers/310:30:003
72961199250,24cyclictest0-21swapper/308:42:593
729610992522,2cyclictest0-21swapper/211:10:582
729610992522,2cyclictest0-21swapper/210:20:592
729610992522,2cyclictest0-21swapper/210:20:582
729610992522,2cyclictest0-21swapper/210:16:002
729610992521,2cyclictest0-21swapper/211:43:002
4577091250,5ptp4l441ktimers/308:24:543
4577091250,4ptp4l61490irq/134-eno1-TxRx-012:15:003
4577091250,4ptp4l61490irq/134-eno1-TxRx-009:54:553
4577091250,4ptp4l441ktimers/312:30:013
729611992422,1cyclictest0-21swapper/311:32:593
729610992421,2cyclictest0-21swapper/211:48:582
729610992420,2cyclictest0-21swapper/209:00:592
729610992420,2cyclictest0-21swapper/209:00:592
4577091240,4ptp4l441ktimers/311:20:013
729611992321,1cyclictest0-21swapper/310:11:593
729610992218,2cyclictest0-21swapper/212:19:552
231999220,12rtkit-daemon495-21gpm07:05:120
729610992017,2cyclictest0-21swapper/211:35:122
729611991816,1cyclictest0-21swapper/309:09:593
72960699183,11cyclictest729605-21latency_hist07:10:021
729610991613,2cyclictest351rcuc/208:05:052
7296109953,1cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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