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2026-05-22 - 23:38
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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 Fri May 22, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7349699117106,8cyclictest165412-21latency_hist11:55:011
734939911184,9cyclictest170193-21latency_hist12:10:010
7349399109101,6cyclictest170228-21kworker/u8:2+flush-179:012:24:590
734939910895,10cyclictest1213033-21systemd-journal10:35:000
734969910595,7cyclictest167003-21latency_hist12:00:011
734969910495,7cyclictest155870-21latency_hist11:25:011
734969910494,8cyclictest138087-21latency_hist10:30:011
734939910296,4cyclictest178389-21kworker/u8:3+flush-179:012:40:010
734939910288,5cyclictest81720-21kworker/u8:0+flush-179:007:35:000
73496999993,4cyclictest112642-21kworker/u8:2+events_unbound09:15:001
73493999889,6cyclictest1213033-21systemd-journal11:45:010
73496999488,4cyclictest78594-21kworker/u8:3+events_unbound08:30:001
73496999484,6cyclictest112642-21kworker/u8:2+flush-179:009:25:211
73496999388,4cyclictest135971-21kworker/u8:3+events_unbound10:50:231
73493999385,4cyclictest139668-21kworker/u8:2+events_unbound10:40:010
73493999385,4cyclictest139668-21kworker/u8:2+events_unbound10:40:000
73496999283,7cyclictest96434-21latency_hist08:20:011
73496999282,8cyclictest1213033-21systemd-journal07:50:011
73496999282,7cyclictest1213033-21systemd-journal12:05:001
73496999183,6cyclictest109475-21kworker/u8:3+flush-179:009:20:001
73493999181,7cyclictest123762-21latency_hist09:45:010
73496999085,4cyclictest78594-21kworker/u8:3+flush-179:008:10:011
73496999085,4cyclictest158515-21kworker/u8:1+flush-179:011:50:011
73496999085,4cyclictest112642-21kworker/u8:2+flush-179:009:45:231
73496999081,5cyclictest99084-21kworker/u8:0+flush-179:008:30:201
73493999084,4cyclictest149535-21kworker/u8:3+flush-179:011:25:220
73493999082,5cyclictest70381-21kworker/u8:2+events_unbound07:20:230
73496998881,4cyclictest166295-21kworker/u8:3+events_unbound12:05:131
73496998778,7cyclictest1213033-21systemd-journal09:55:011
73493998778,6cyclictest112608-21latency_hist09:10:000
73496998680,4cyclictest78594-21kworker/u8:3+events_unbound07:40:231
73496998679,5cyclictest142907-21kworker/u8:1+events_unbound10:45:251
73493998679,5cyclictest139668-21kworker/u8:2+flush-179:010:40:160
73496998579,4cyclictest135971-21kworker/u8:3+flush-179:010:55:201
73496998378,4cyclictest138065-21kworker/u8:0+events_unbound10:30:141
73496998377,4cyclictest90117-21kworker/u8:2+flush-179:008:10:241
73496998174,5cyclictest99658-21kworker/u8:1+events_unbound08:50:001
73496998174,4cyclictest157717-21kworker/u8:0+events_unbound11:30:151
73493998176,3cyclictest191rcuc/009:15:010
73496998075,4cyclictest109475-21kworker/u8:3+flush-179:009:35:001
73496998074,4cyclictest78594-21kworker/u8:3+flush-179:007:25:221
73496998072,5cyclictest158515-21kworker/u8:1+events_unbound11:40:151
73496998069,9cyclictest149758-21apt-get11:05:121
73496997866,9cyclictest116063-21apt-get09:20:091
73493997873,4cyclictest78594-21kworker/u8:3+flush-179:007:35:280
73493997770,5cyclictest170183-21kworker/u8:1+flush-179:012:30:130
73493997769,5cyclictest142907-21kworker/u8:1+flush-179:011:10:210
73496997667,7cyclictest177865-21kworker/u8:2+flush-179:012:35:151
73493997669,5cyclictest78594-21kworker/u8:3+events_unbound07:55:000
73496997569,4cyclictest112642-21kworker/u8:2+flush-179:010:05:011
73496997568,5cyclictest170183-21kworker/u8:1+flush-179:012:30:201
73496997566,6cyclictest166295-21kworker/u8:3+events_unbound12:15:131
73493997569,4cyclictest89123-21kworker/u8:1+flush-179:007:55:200
73493997567,5cyclictest99084-21kworker/u8:0+flush-179:008:45:260
73493997467,5cyclictest134873-21kworker/u8:2+flush-179:010:25:200
73493997367,5cyclictest99084-21kworker/u8:0+events_unbound08:55:130
73496997267,4cyclictest112642-21kworker/u8:2+events_unbound09:55:131
73496997266,4cyclictest81720-21kworker/u8:0+events_unbound07:50:131
73496997264,6cyclictest122184-21latency_hist09:40:011
73496997261,9cyclictest96698-21apt-get08:20:121
73496997165,4cyclictest70381-21kworker/u8:2+flush-179:007:15:001
73496997165,4cyclictest125382-21kworker/u8:1+events_unbound10:10:221
73496997164,4cyclictest138065-21kworker/u8:0+events_unbound10:35:141
73496997164,4cyclictest138065-21kworker/u8:0+events_unbound10:35:141
73493997164,5cyclictest78594-21kworker/u8:3+flush-179:008:40:220
73496997065,4cyclictest99084-21kworker/u8:0+flush-179:008:35:171
73496997065,4cyclictest134873-21kworker/u8:2+flush-179:010:24:551
73496997065,4cyclictest112642-21kworker/u8:2+flush-179:010:05:201
73496997059,9cyclictest148169-21apt-get11:00:121
73493997063,6cyclictest78594-21kworker/u8:3+events_unbound08:05:000
73496996863,3cyclictest142907-21kworker/u8:1+flush-179:011:15:211
73496996861,5cyclictest99084-21kworker/u8:0+flush-179:008:50:211
73496996860,6cyclictest76894-21latency_hist07:20:001
73493996863,4cyclictest78594-21kworker/u8:3+flush-179:007:25:200
73493996859,6cyclictest142907-21kworker/u8:1+flush-179:011:15:200
73496996755,8cyclictest109475-21kworker/u8:3+flush-179:009:05:211
73493996761,5cyclictest90117-21kworker/u8:2+flush-179:008:15:230
73493996753,4cyclictest99084-21kworker/u8:0+events_unbound08:35:250
73496996662,3cyclictest170183-21kworker/u8:1+events_unbound12:20:251
73496996661,4cyclictest109475-21kworker/u8:3+events_unbound09:45:011
73493996660,4cyclictest112642-21kworker/u8:2+flush-179:009:20:200
73496996555,7cyclictest99084-21kworker/u8:0+flush-179:009:00:151
73496996555,7cyclictest99084-21kworker/u8:0+flush-179:009:00:151
73493996559,4cyclictest70381-21kworker/u8:2+flush-179:007:15:230
73493996558,5cyclictest155860-21kworker/u8:2+flush-179:011:45:090
73496996455,7cyclictest1213033-21systemd-journal07:39:591
73496996448,5cyclictest170183-21kworker/u8:1+flush-179:012:10:211
73493996458,5cyclictest163861-21kworker/u8:0+flush-179:011:55:270
73493996458,4cyclictest155860-21kworker/u8:2+events_unbound11:50:140
73496996355,5cyclictest70381-21kworker/u8:2+events_unbound07:30:151
73493996358,4cyclictest147878-21kworker/u8:0+events_unbound11:00:240
73493996357,4cyclictest157717-21kworker/u8:0+flush-179:011:35:170
73493996356,5cyclictest78594-21kworker/u8:3+events_unbound08:25:010
7349399631,58cyclictest1-21systemd09:55:010
73493996251,8cyclictest125347-21latency_hist09:50:020
73496996153,6cyclictest78550-21latency_hist07:25:011
73496996151,7cyclictest1213033-21systemd-journal07:55:181
73497995956,2cyclictest0-21swapper/208:07:592
73496995954,4cyclictest90117-21kworker/u8:2+events_unbound08:00:151
73496995953,5cyclictest139668-21kworker/u8:2+flush-179:010:44:561
73493995955,3cyclictest125382-21kworker/u8:1+flush-179:010:09:560
73493995954,3cyclictest173678-21apt-key12:20:020
73493995853,4cyclictest99084-21kworker/u8:0+flush-179:008:50:210
73493995853,3cyclictest175269-21kworker/u8:0+flush-179:012:25:140
73493995852,4cyclictest155860-21kworker/u8:2+flush-179:012:00:160
73493995850,5cyclictest128577-21kworker/u8:0+flush-179:010:15:200
73496995650,4cyclictest78594-21kworker/u8:3+events_unbound08:40:131
73493995648,6cyclictest510-21rs:main0
73496995549,4cyclictest142907-21kworker/u8:1+flush-179:011:10:131
73493995549,5cyclictest170183-21kworker/u8:1+events_unbound12:10:260
73493995350,2cyclictest78594-21kworker/u8:3+flush-179:008:30:160
73493995349,3cyclictest125382-21kworker/u8:1+flush-179:010:00:230
73493995238,7cyclictest135971-21kworker/u8:3+events_unbound10:55:140
73493995049,1cyclictest149535-21kworker/u8:3+events_unbound11:05:230
73493994943,4cyclictest714-21Xorg07:14:590
73493994941,6cyclictest117937-21diskstats09:25:140
4577091490,13ptp4l61490irq/134-eno1-TxRx-007:09:593
73496994839,7cyclictest134896-21latency_hist10:20:011
73493994843,4cyclictest112642-21kworker/u8:2+flush-179:009:39:550
73493994843,3cyclictest135971-21kworker/u8:3+events_unbound10:50:170
73496994743,3cyclictest149535-21kworker/u8:3+flush-179:011:25:121
73493994741,4cyclictest112642-21kworker/u8:2+flush-179:009:55:210
73493994739,6cyclictest78594-21kworker/u8:3+events_unbound08:10:160
73504994634,10cyclictest101223-21turbostat08:35:003
7350499460,4cyclictest152685-21turbostat11:15:013
73493994641,3cyclictest90117-21kworker/u8:2+events_unbound08:25:210
73493994539,4cyclictest149535-21kworker/u8:3+flush-179:011:20:130
73493994438,4cyclictest135170-21apt-get10:20:120
73493994436,6cyclictest78594-21kworker/u8:3+flush-179:008:05:160
73496994338,4cyclictest157717-21kworker/u8:0+flush-179:011:35:211
7350499420,41cyclictest0-21swapper/311:05:593
7349699420,1cyclictest0-21swapper/112:26:591
73493994237,4cyclictest115790-21munin-run09:20:010
73493994234,6cyclictest86880-21munin-run07:50:010
73504994138,2cyclictest0-21swapper/307:26:593
73493994135,4cyclictest99084-21kworker/u8:0+events_unbound09:00:140
73493994135,4cyclictest99084-21kworker/u8:0+events_unbound09:00:130
7350499400,38cyclictest75056-21turbostat07:15:003
7350499400,1cyclictest0-21swapper/310:12:593
7349399401,2cyclictest714-21Xorg10:48:590
7349399390,3cyclictest157470-21turbostat11:34:560
73504993833,4cyclictest141272-21turbostat10:40:013
73504993833,4cyclictest141272-21turbostat10:40:003
7349799380,36cyclictest0-21swapper/211:38:592
73493993829,7cyclictest1213033-21systemd-journal09:30:010
73504993735,1cyclictest0-21swapper/308:12:003
73504993735,1cyclictest0-21swapper/307:44:543
73497993734,2cyclictest0-21swapper/211:42:592
7349799370,35cyclictest0-21swapper/207:41:592
73496993732,4cyclictest99084-21kworker/u8:0+flush-179:008:55:261
73504993634,1cyclictest0-21swapper/311:49:553
73504993634,1cyclictest0-21swapper/311:18:593
73504993634,1cyclictest0-21swapper/309:28:593
73504993634,1cyclictest0-21swapper/308:49:553
7350499360,29cyclictest0-21swapper/311:50:593
7350499360,1cyclictest0-21swapper/309:52:003
73497993633,2cyclictest0-21swapper/207:34:582
73504993534,1cyclictest0-21swapper/307:17:593
73504993533,1cyclictest0-21swapper/312:04:553
73504993533,1cyclictest0-21swapper/308:44:563
73504993533,1cyclictest0-21swapper/307:49:563
73497993532,2cyclictest0-21swapper/211:45:592
73504993432,1cyclictest0-21swapper/310:21:593
73504993432,1cyclictest0-21swapper/308:15:583
4577091340,2ptp4l441ktimers/309:00:133
4577091340,2ptp4l441ktimers/309:00:123
4577091340,27ptp4l441ktimers/312:27:593
73493993328,4cyclictest132604-21missed_timers10:10:180
231999330,9rtkit-daemon2304-21lightdm-gtk-gre07:06:001
73504993230,1cyclictest0-21swapper/310:44:593
73504993230,1cyclictest0-21swapper/307:40:003
73497993229,2cyclictest0-21swapper/212:10:582
7349799320,30cyclictest0-21swapper/211:07:592
7349799320,30cyclictest0-21swapper/209:02:592
7349799320,30cyclictest0-21swapper/209:02:582
4577091320,9ptp4l441ktimers/311:00:013
73504993130,1cyclictest0-21swapper/309:15:003
73504993129,1cyclictest0-21swapper/310:26:593
73504993128,2cyclictest0-21swapper/310:31:593
73497993128,2cyclictest0-21swapper/212:07:002
73497993128,2cyclictest0-21swapper/211:32:592
73497993128,2cyclictest0-21swapper/208:14:562
7349799310,1cyclictest0-21swapper/211:13:592
73504993027,2cyclictest0-21swapper/309:40:123
73497993028,1cyclictest0-21swapper/208:33:592
73497993027,2cyclictest0-21swapper/208:55:122
73497993027,2cyclictest0-21swapper/208:20:132
7349799300,28cyclictest0-21swapper/210:05:122
7349799300,28cyclictest0-21swapper/207:15:022
4577091300,7ptp4l441ktimers/311:40:003
73504992927,1cyclictest0-21swapper/312:32:593
73504992927,1cyclictest0-21swapper/310:19:553
73504992927,1cyclictest0-21swapper/308:00:583
73504992926,2cyclictest0-21swapper/311:40:143
73504992926,2cyclictest0-21swapper/307:55:113
7350499290,28cyclictest0-21swapper/311:55:133
7350499290,28cyclictest0-21swapper/311:30:133
7350499290,28cyclictest0-21swapper/311:20:123
73497992927,1cyclictest0-21swapper/212:30:122
73497992927,1cyclictest0-21swapper/208:35:142
73497992926,2cyclictest0-21swapper/212:20:022
73497992926,2cyclictest0-21swapper/212:20:022
73497992926,2cyclictest0-21swapper/211:15:132
73497992926,2cyclictest0-21swapper/209:50:122
73497992926,2cyclictest0-21swapper/209:10:122
73497992926,2cyclictest0-21swapper/208:50:132
73497992926,2cyclictest0-21swapper/208:45:132
7349799290,27cyclictest0-21swapper/212:25:132
7349799290,27cyclictest0-21swapper/211:55:132
7349799290,27cyclictest0-21swapper/211:25:112
7349799290,27cyclictest0-21swapper/210:57:592
7349799290,27cyclictest0-21swapper/210:40:142
7349799290,27cyclictest0-21swapper/209:45:122
7349799290,27cyclictest0-21swapper/209:30:122
7349799290,27cyclictest0-21swapper/209:25:122
7349799290,27cyclictest0-21swapper/209:20:122
7349799290,27cyclictest0-21swapper/207:55:132
4577091290,7ptp4l441ktimers/312:15:013
4577091290,6ptp4l441ktimers/312:10:003
4577091290,6ptp4l441ktimers/311:05:013
73504992826,1cyclictest0-21swapper/308:27:003
73504992826,1cyclictest0-21swapper/307:50:133
73504992825,2cyclictest0-21swapper/310:50:593
73497992825,2cyclictest0-21swapper/208:02:582
73497992825,2cyclictest0-21swapper/207:25:112
73497992825,2cyclictest0-21swapper/207:13:582
73497992824,2cyclictest0-21swapper/207:45:582
7349799280,2cyclictest0-21swapper/209:55:132
7349799280,2cyclictest0-21swapper/209:08:592
7349799280,26cyclictest0-21swapper/211:20:122
7349799280,26cyclictest0-21swapper/211:01:592
7349799280,26cyclictest0-21swapper/210:45:122
7349799280,26cyclictest0-21swapper/210:20:132
7349799280,26cyclictest0-21swapper/209:40:122
7349799280,26cyclictest0-21swapper/208:40:132
4577091280,7ptp4l61490irq/134-eno1-TxRx-008:55:003
4577091280,7ptp4l441ktimers/309:25:003
4577091280,6ptp4l61490irq/134-eno1-TxRx-010:10:013
4577091280,6ptp4l61490irq/134-eno1-TxRx-010:05:003
4577091280,6ptp4l441ktimers/310:00:003
4577091280,6ptp4l441ktimers/307:35:013
4577091280,5ptp4l441ktimers/312:40:013
4577091280,5ptp4l441ktimers/310:50:003
73504992725,1cyclictest0-21swapper/308:07:003
7350499270,26cyclictest0-21swapper/308:20:133
7350499270,25cyclictest0-21swapper/309:05:133
73497992724,2cyclictest0-21swapper/212:35:592
73497992724,2cyclictest0-21swapper/210:17:592
73497992724,2cyclictest0-21swapper/207:52:002
7349799270,2cyclictest0-21swapper/208:28:002
7349799270,19cyclictest0-21swapper/210:39:592
7349799270,19cyclictest0-21swapper/210:39:592
4577091270,6ptp4l61490irq/134-eno1-TxRx-012:25:003
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:49:553
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:20:013
4577091270,6ptp4l441ktimers/308:40:003
4577091270,5ptp4l441ktimers/311:29:563
4577091270,5ptp4l441ktimers/309:35:013
4577091270,5ptp4l441ktimers/307:24:563
73497992623,2cyclictest0-21swapper/209:35:142
7349799260,2cyclictest0-21swapper/212:04:592
7349799260,24cyclictest0-21swapper/210:25:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-012:19:563
4577091260,5ptp4l441ktimers/309:39:553
73504992523,1cyclictest109438-21turbostat09:00:003
73497992320,2cyclictest0-21swapper/207:39:552
73497992220,1cyclictest0-21swapper/207:25:002
73497992219,2cyclictest0-21swapper/210:30:592
73497992119,1cyclictest0-21swapper/210:05:002
73497992119,1cyclictest0-21swapper/209:18:592
7349399181,14cyclictest73492-21cyclictest07:10:000
73497991715,1cyclictest0-21swapper/210:55:002
73497991310,2cyclictest0-21swapper/208:19:562
7349799118,2cyclictest0-21swapper/210:13:002
7349799107,2cyclictest0-21swapper/211:50:592
734979930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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