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2026-04-23 - 02:15
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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 Wed Apr 22, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9322549910597,6cyclictest949742-21kworker/u8:2+events_unbound09:30:010
9322549910497,5cyclictest993320-21kworker/u8:2+flush-179:010:35:000
9322589910094,4cyclictest991657-21kworker/u8:3+events_unbound10:55:001
932258999588,5cyclictest926161-21kworker/u8:3+flush-179:007:15:011
932254999385,6cyclictest1017923-21latency_hist11:35:000
932258999185,4cyclictest982986-21kworker/u8:0+events_unbound10:20:241
932258999185,4cyclictest982986-21kworker/u8:0+events_unbound10:20:241
932254998676,7cyclictest994873-21apt-get10:25:000
932254998676,7cyclictest994873-21apt-get10:25:000
932254998577,6cyclictest932170-21latency_hist07:10:020
932258998377,4cyclictest949742-21kworker/u8:2+flush-179:008:54:591
932258998045,33cyclictest714-21Xorg07:28:591
932258998045,33cyclictest714-21Xorg07:28:591
932258997973,4cyclictest999848-21kworker/u8:1+flush-179:011:15:011
932258997871,5cyclictest1019496-21kworker/u8:0+events_unbound11:55:011
932254997867,8cyclictest1013396-21/usr/sbin/munin11:20:230
932258997771,3cyclictest999848-21kworker/u8:1+flush-179:011:15:201
932254997772,3cyclictest982986-21kworker/u8:0+flush-179:009:55:210
932258997668,6cyclictest957721-21latency_hist08:30:001
932254997668,6cyclictest934468-21kworker/u8:0+events_unbound07:45:240
932254997667,6cyclictest993283-21latency_hist10:20:010
932254997464,8cyclictest1014984-21/usr/sbin/munin11:25:220
932258997366,5cyclictest991657-21kworker/u8:3+flush-179:010:40:001
932254997363,7cyclictest1025905-21latency_hist12:00:010
932258997257,13cyclictest1032297-21kworker/u8:2+flush-179:012:35:001
932258997065,4cyclictest1019563-21kworker/u8:2+flush-179:011:59:561
932254996961,6cyclictest1019496-21kworker/u8:0+flush-179:011:50:000
932258996863,4cyclictest999848-21kworker/u8:1+flush-179:011:00:211
932258996863,4cyclictest993320-21kworker/u8:2+flush-179:010:34:561
932258996863,4cyclictest1019496-21kworker/u8:0+flush-179:011:49:551
932258996860,6cyclictest993320-21kworker/u8:2+flush-179:010:25:221
932254996863,4cyclictest949742-21kworker/u8:2+events_unbound08:20:250
932254996862,4cyclictest1213033-21systemd-journal08:00:000
932258996760,5cyclictest1025280-21kworker/u8:3+flush-179:012:20:001
932258996758,7cyclictest963000-21/usr/sbin/munin08:45:221
932254996762,4cyclictest939260-21kworker/u8:2+flush-179:007:32:040
932258996660,5cyclictest1032217-21kworker/u8:1+flush-179:012:20:201
932258996659,5cyclictest934468-21kworker/u8:0+flush-179:008:00:211
932258996658,5cyclictest936875-21kworker/u8:1+flush-179:007:45:161
93226399650,1cyclictest0-21swapper/210:19:582
932258996457,5cyclictest1213033-21systemd-journal10:58:031
932258996455,7cyclictest1213033-21systemd-journal11:25:001
932258996453,8cyclictest1035437-21latency_hist12:30:011
932254996459,4cyclictest1032217-21kworker/u8:1+flush-179:012:24:550
932254996458,3cyclictest1-21systemd11:15:010
932254996454,8cyclictest932473-21apt-get07:10:110
932258996358,3cyclictest1025280-21kworker/u8:3+flush-179:012:05:201
932254996358,4cyclictest980779-21kworker/u8:1+events_unbound10:00:240
932258996257,4cyclictest955574-21kworker/u8:0+flush-179:008:30:041
932258996255,5cyclictest971383-21kworker/u8:0+flush-179:009:15:231
932258996253,7cyclictest979171-21/usr/sbin/munin09:35:231
932258996253,7cyclictest979171-21/usr/sbin/munin09:35:231
932258996253,6cyclictest1029307-21/usr/sbin/munin12:10:161
932254996256,4cyclictest971383-21kworker/u8:0+flush-179:009:10:240
932254996254,6cyclictest971383-21kworker/u8:0+flush-179:009:20:160
932254996230,31cyclictest0-21swapper/007:28:590
932254996230,31cyclictest0-21swapper/007:28:580
932258996154,5cyclictest949742-21kworker/u8:2+events_unbound08:35:201
932258996055,4cyclictest999848-21kworker/u8:1+flush-179:011:34:041
932258996055,4cyclictest991657-21kworker/u8:3+flush-179:011:08:041
932258996050,8cyclictest1213033-21systemd-journal11:45:001
932254996055,4cyclictest993320-21kworker/u8:2+flush-179:010:26:040
932254996055,4cyclictest1016368-21kworker/u8:3+flush-179:011:38:040
932254996053,5cyclictest980779-21kworker/u8:1+flush-179:009:45:150
932258995953,5cyclictest946819-21kworker/u8:1+flush-179:007:56:031
932258995953,5cyclictest936875-21kworker/u8:1+flush-179:007:39:541
932254995953,4cyclictest980779-21kworker/u8:1+flush-179:010:10:200
932258995852,4cyclictest1016368-21kworker/u8:3+flush-179:011:35:161
932258995850,5cyclictest942064-21apt-get07:40:101
932254995852,5cyclictest971383-21kworker/u8:0+flush-179:009:35:190
932254995852,5cyclictest971383-21kworker/u8:0+flush-179:009:35:180
932254995852,5cyclictest936875-21kworker/u8:1+flush-179:007:38:050
932254995849,6cyclictest937000-21latency_hist07:25:010
932258995752,3cyclictest1032297-21kworker/u8:2+flush-179:012:35:191
932258995750,5cyclictest982986-21kworker/u8:0+flush-179:009:50:201
932258995750,5cyclictest971383-21kworker/u8:0+flush-179:009:10:201
932258995748,7cyclictest1213033-21systemd-journal09:45:011
932254995751,4cyclictest949742-21kworker/u8:2+flush-179:008:34:550
932258995648,6cyclictest982986-21kworker/u8:0+flush-179:010:05:241
932254995649,5cyclictest982986-21kworker/u8:0+events_unbound10:05:230
932254995649,5cyclictest1213033-21systemd-journal10:54:030
932258995549,4cyclictest982986-21kworker/u8:0+events_unbound10:00:151
932258995450,3cyclictest1025280-21kworker/u8:3+flush-179:012:04:081
932258995450,3cyclictest1025280-21kworker/u8:3+flush-179:012:04:071
932258995446,6cyclictest991657-21kworker/u8:3+flush-179:010:15:201
932254995449,4cyclictest978918-21kworker/u8:3+flush-179:009:40:210
932254995448,4cyclictest949742-21kworker/u8:2+flush-179:008:55:170
932258995348,4cyclictest949742-21kworker/u8:2+flush-179:009:00:011
932258995346,5cyclictest999848-21kworker/u8:1+flush-179:010:45:101
932258995346,5cyclictest949742-21kworker/u8:2+flush-179:008:40:161
932258995345,6cyclictest949742-21kworker/u8:2+flush-179:009:30:001
932254995348,4cyclictest999848-21kworker/u8:1+flush-179:011:01:040
932254995348,4cyclictest1025280-21kworker/u8:3+flush-179:012:19:550
932254995346,5cyclictest991657-21kworker/u8:3+flush-179:010:35:250
932258995245,6cyclictest934468-21kworker/u8:0+flush-179:007:55:001
932254995248,3cyclictest991657-21kworker/u8:3+flush-179:010:56:050
932254995247,4cyclictest982986-21kworker/u8:0+flush-179:009:50:210
932258995147,3cyclictest934468-21kworker/u8:0+events_unbound08:05:181
932258995146,4cyclictest926161-21kworker/u8:3+events_unbound07:15:141
932254995145,5cyclictest949742-21kworker/u8:2+flush-179:008:29:050
932254995045,4cyclictest949742-21kworker/u8:2+flush-179:008:48:330
932254994944,4cyclictest991657-21kworker/u8:3+events_unbound10:45:240
932254994943,5cyclictest1037004-21kworker/u8:0+events_unbound12:35:120
932254994942,5cyclictest1025280-21kworker/u8:3+flush-179:012:00:210
932254994942,5cyclictest1025280-21kworker/u8:3+flush-179:012:00:210
932258994843,3cyclictest1014722-21kworker/u8:2+flush-179:011:25:041
932258994842,5cyclictest980779-21kworker/u8:1+flush-179:010:10:241
932254994843,4cyclictest949742-21kworker/u8:2+flush-179:009:00:220
932254994843,4cyclictest949742-21kworker/u8:2+flush-179:008:40:040
932254994843,4cyclictest949742-21kworker/u8:2+flush-179:008:14:560
932254994843,4cyclictest1019496-21kworker/u8:0+flush-179:011:44:040
932254994837,9cyclictest1213033-21systemd-journal10:40:010
932254994742,4cyclictest949742-21kworker/u8:2+flush-179:009:05:140
932254994739,6cyclictest1025280-21kworker/u8:3+flush-179:012:05:180
93225499471,44cyclictest714-21Xorg11:53:590
932258994640,4cyclictest971383-21kworker/u8:0+events_unbound09:20:191
932258994634,6cyclictest934468-21kworker/u8:0+events_unbound07:30:111
93225899461,43cyclictest714-21Xorg09:32:001
4577091460,13ptp4l61490irq/134-eno1-TxRx-007:10:013
932258994537,6cyclictest951591-21/usr/sbin/munin08:10:151
932254994540,4cyclictest949742-21kworker/u8:2+flush-179:009:25:200
932254994539,4cyclictest951612-21kworker/u8:1+flush-179:008:15:140
932254994538,4cyclictest936875-21kworker/u8:1+flush-179:007:40:030
932264994438,5cyclictest0-21swapper/310:44:553
932258994436,5cyclictest949742-21kworker/u8:2+flush-179:009:05:201
932254994439,4cyclictest949742-21kworker/u8:2+flush-179:008:51:040
932254994439,4cyclictest1032217-21kworker/u8:1+flush-179:012:25:170
932258994338,4cyclictest982986-21kworker/u8:0+flush-179:009:45:181
932254994338,4cyclictest934468-21kworker/u8:0+events_unbound07:15:200
932254994337,5cyclictest1019496-21kworker/u8:0+flush-179:012:12:040
932254994337,4cyclictest999848-21kworker/u8:1+flush-179:011:15:210
932254994237,4cyclictest999848-21kworker/u8:1+flush-179:011:05:160
932264994135,5cyclictest0-21swapper/311:36:593
93226499410,40cyclictest0-21swapper/310:20:593
93226499410,40cyclictest0-21swapper/310:20:583
93226499410,1cyclictest0-21swapper/308:49:003
93225899410,39cyclictest956137-21idleruntime-cro08:25:001
932258994035,4cyclictest980779-21kworker/u8:1+flush-179:009:56:041
932258994033,6cyclictest1001523-21kworker/u8:2+flush-179:010:45:001
932254994035,4cyclictest934468-21kworker/u8:0+flush-179:008:00:490
932254994034,4cyclictest945240-21apt-get07:50:100
932263993936,2cyclictest0-21swapper/208:25:582
93226399390,36cyclictest0-21swapper/208:39:562
932254993934,4cyclictest949742-21kworker/u8:2+flush-179:008:35:250
932254993928,8cyclictest1035695-21apt-get12:30:110
932258993833,4cyclictest949742-21kworker/u8:2+flush-179:009:04:551
932264993735,1cyclictest0-21swapper/309:01:003
93226499370,36cyclictest0-21swapper/312:06:593
93226499370,35cyclictest0-21swapper/310:28:593
932263993734,2cyclictest0-21swapper/212:18:592
932263993734,2cyclictest0-21swapper/211:41:592
932263993734,2cyclictest0-21swapper/211:28:592
932263993734,2cyclictest0-21swapper/209:54:552
932263993734,2cyclictest0-21swapper/207:14:562
932258993732,4cyclictest934468-21kworker/u8:0+events_unbound07:24:031
932254993725,4cyclictest934468-21kworker/u8:0+events_unbound08:05:240
932264993634,1cyclictest0-21swapper/309:38:593
932264993634,1cyclictest0-21swapper/309:38:583
93226499360,35cyclictest0-21swapper/311:56:593
932263993633,2cyclictest0-21swapper/212:10:592
932263993633,2cyclictest0-21swapper/210:48:582
932263993633,2cyclictest0-21swapper/207:38:002
932258993633,2cyclictest0-21swapper/108:16:001
932254993630,5cyclictest971383-21kworker/u8:0+flush-179:009:15:270
4577091360,4ptp4l431rcuc/310:00:003
932264993533,1cyclictest0-21swapper/311:00:593
932264993532,2cyclictest0-21swapper/308:02:593
932263993532,2cyclictest0-21swapper/209:56:002
93226399350,1cyclictest0-21swapper/212:28:002
93226399350,1cyclictest0-21swapper/208:24:552
932264993432,1cyclictest0-21swapper/310:05:593
932264993432,1cyclictest0-21swapper/308:29:593
932263993432,1cyclictest0-21swapper/211:19:592
932263993431,2cyclictest0-21swapper/207:52:002
932264993331,1cyclictest0-21swapper/309:52:593
932264993331,1cyclictest0-21swapper/308:21:593
93226499330,32cyclictest0-21swapper/310:52:593
932263993331,1cyclictest0-21swapper/211:24:592
932263993330,2cyclictest0-21swapper/209:14:002
932263993330,2cyclictest0-21swapper/207:30:582
932264993230,1cyclictest0-21swapper/312:22:583
932263993229,2cyclictest0-21swapper/212:01:592
932263993229,2cyclictest0-21swapper/212:01:592
932263993229,2cyclictest0-21swapper/211:30:592
932263993229,2cyclictest0-21swapper/209:38:592
932263993229,2cyclictest0-21swapper/209:38:582
4577091320,4ptp4l61490irq/134-eno1-TxRx-011:55:013
4577091320,12ptp4l61490irq/134-eno1-TxRx-007:20:013
932264993028,1cyclictest0-21swapper/311:06:593
932263993028,1cyclictest351rcuc/211:05:032
932263993027,2cyclictest0-21swapper/211:10:122
932263993027,2cyclictest0-21swapper/210:05:122
932263993027,2cyclictest0-21swapper/209:00:122
932263993026,2cyclictest0-21swapper/212:39:552
932264992927,1cyclictest0-21swapper/308:40:143
932264992927,1cyclictest0-21swapper/308:08:593
932264992926,2cyclictest0-21swapper/308:35:123
93226499290,28cyclictest0-21swapper/307:22:003
93226499290,27cyclictest0-21swapper/312:35:113
93226499290,27cyclictest0-21swapper/311:40:133
93226499290,27cyclictest0-21swapper/308:55:133
93226499290,27cyclictest0-21swapper/307:45:143
932263992927,1cyclictest0-21swapper/211:39:592
932263992926,2cyclictest0-21swapper/210:53:592
932263992926,2cyclictest0-21swapper/210:35:122
932263992926,2cyclictest0-21swapper/209:45:112
932263992926,2cyclictest0-21swapper/208:51:002
932263992926,2cyclictest0-21swapper/208:30:152
932263992926,2cyclictest0-21swapper/208:05:122
932263992926,2cyclictest0-21swapper/207:25:142
932263992926,2cyclictest0-21swapper/207:25:142
932263992926,2cyclictest0-21swapper/207:15:112
93226399290,28cyclictest0-21swapper/208:00:132
93226399290,27cyclictest0-21swapper/212:30:122
93226399290,27cyclictest0-21swapper/210:25:142
93226399290,27cyclictest0-21swapper/209:30:022
93226399290,27cyclictest0-21swapper/209:05:132
93226399290,1cyclictest0-21swapper/208:15:132
93226399290,1cyclictest0-21swapper/207:20:132
932264992826,1cyclictest0-21swapper/310:55:143
932264992826,1cyclictest0-21swapper/309:10:123
932264992826,1cyclictest0-21swapper/308:10:123
932264992825,2cyclictest0-21swapper/309:45:123
932263992825,2cyclictest0-21swapper/212:05:122
932263992825,2cyclictest0-21swapper/208:55:132
93226399280,2cyclictest0-21swapper/211:00:012
93226399280,2cyclictest0-21swapper/210:00:132
93226399280,27cyclictest0-21swapper/208:45:022
93226399280,27cyclictest0-21swapper/208:45:012
93226399280,26cyclictest0-21swapper/211:00:012
93226399280,26cyclictest0-21swapper/209:16:592
932264992725,1cyclictest0-21swapper/312:25:133
932264992725,1cyclictest0-21swapper/310:49:553
932264992725,1cyclictest0-21swapper/309:19:553
932264992725,1cyclictest0-21swapper/308:17:593
932264992725,1cyclictest0-21swapper/307:59:593
93226499270,26cyclictest0-21swapper/312:17:593
93226499270,1cyclictest0-21swapper/310:35:143
932263992724,2cyclictest0-21swapper/207:44:592
4577091270,6ptp4l441ktimers/310:35:003
93226499260,24cyclictest0-21swapper/311:46:003
93226499260,1cyclictest0-21swapper/311:26:593
932263992623,2cyclictest0-21swapper/208:12:592
932263992623,2cyclictest0-21swapper/207:45:122
93226399260,24cyclictest0-21swapper/212:20:592
93226399260,24cyclictest0-21swapper/207:55:132
4577091260,5ptp4l441ktimers/311:20:003
4577091260,4ptp4l61490irq/134-eno1-TxRx-012:05:003
4577091260,4ptp4l61490irq/134-eno1-TxRx-012:05:003
4577091260,4ptp4l441ktimers/310:20:013
932264992523,1cyclictest0-21swapper/307:38:593
932264992523,1cyclictest0-21swapper/307:10:283
93226499250,24cyclictest0-21swapper/311:14:593
93226499250,24cyclictest0-21swapper/310:04:583
932263992523,1cyclictest0-21swapper/210:45:002
4577091250,5ptp4l61490irq/134-eno1-TxRx-012:35:003
4577091250,5ptp4l61490irq/134-eno1-TxRx-011:35:013
4577091250,5ptp4l61490irq/134-eno1-TxRx-009:45:003
4577091250,5ptp4l441ktimers/307:29:563
4577091250,5ptp4l441ktimers/307:29:553
4577091250,4ptp4l441ktimers/312:14:553
4577091250,4ptp4l441ktimers/310:14:553
4577091250,4ptp4l441ktimers/309:25:013
4577091250,4ptp4l441ktimers/309:10:013
4577091250,4ptp4l441ktimers/308:55:003
4577091250,4ptp4l441ktimers/308:35:013
4577091250,4ptp4l441ktimers/307:54:563
932263992422,1cyclictest0-21swapper/211:55:002
932263992421,2cyclictest0-21swapper/211:48:592
932263992421,2cyclictest0-21swapper/210:30:592
932263992421,2cyclictest0-21swapper/209:44:552
4577091240,4ptp4l61490irq/134-eno1-TxRx-011:24:553
4577091240,4ptp4l61490irq/134-eno1-TxRx-009:29:553
4577091240,4ptp4l61490irq/134-eno1-TxRx-007:34:563
4577091240,4ptp4l441ktimers/307:45:003
4577091240,3ptp4l61490irq/134-eno1-TxRx-009:35:003
932263992321,1cyclictest0-21swapper/211:59:592
932263992321,1cyclictest0-21swapper/210:25:012
932263992321,1cyclictest0-21swapper/210:25:012
932263992220,1cyclictest0-21swapper/209:30:012
231999210,10rtkit-daemon931515-21memory07:05:211
932263992018,1cyclictest0-21swapper/210:15:002
932263991714,2cyclictest0-21swapper/209:23:582
9322639975,1cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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